RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy6935
(1575 letters)
>gnl|CDD|238103 cd00176, SPEC, Spectrin repeats, found in several proteins involved
in cytoskeletal structure; family members include
spectrin, alpha-actinin and dystrophin; the spectrin
repeat forms a three helix bundle with the second helix
interrupted by proline in some sequences; the repeats are
independent folding units; tandem repeats are found in
differing numbers and arrange in an antiparallel manner
to form dimers; the repeats are defined by a
characteristic tryptophan (W) residue in helix A and a
leucine (L) at the carboxyl end of helix C and separated
by a linker of 5 residues; two copies of the repeat are
present here.
Length = 213
Score = 156 bits (395), Expect = 5e-43
Identities = 89/206 (43%), Positives = 138/206 (66%), Gaps = 1/206 (0%)
Query: 804 AVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQADSLI 863
+L+ WL E E LL+S D G DL SV+ L+KKH+ +EA++ AH++R++ +N + LI
Sbjct: 8 DADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNELGEQLI 67
Query: 864 DSGQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKKL 923
+ G DA IQE+ + +N+R+E ++ LA R+ RL EA L QFFRD D E W++EK+
Sbjct: 68 EEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQWLEEKEA 127
Query: 924 LVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQNVQETGEKLMDVSNLGV-PEIEQR 982
+ S+D G+DL V+ L KKHK LE EL +H+P ++++ E E+L++ + EIE++
Sbjct: 128 ALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPDADEEIEEK 187
Query: 983 LKLLNQAWSELKQLAANRGQKLDESL 1008
L+ LN+ W EL +LA R +KL+E+L
Sbjct: 188 LEELNERWEELLELAEERQKKLEEAL 213
Score = 147 bits (372), Expect = 7e-40
Identities = 79/210 (37%), Positives = 127/210 (60%), Gaps = 1/210 (0%)
Query: 904 LHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQNVQE 963
L QF RD + E+W+ EK+ L+ S DYG DL V+ L KKH+ LEAELA+H+ ++ + E
Sbjct: 2 LQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNE 61
Query: 964 TGEKLMDVSNLGVPEIEQRLKLLNQAWSELKQLAANRGQKLDESLTYQHFLAKVEEEEAW 1023
GE+L++ + EI++RL+ LNQ W EL++LA R Q+L+E+L Q F ++ E W
Sbjct: 62 LGEQLIEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQW 121
Query: 1024 ISEKQQLLSVEDYGDTMAAVQGLLKKHDAFETDFSVHRDRCADICSAGNKLIEAKNHHA- 1082
+ EK+ L+ ED G + +V+ LLKKH E + H R + +L+E + A
Sbjct: 122 LEEKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPDAD 181
Query: 1083 DSITQRCQQLQLKLDNLMALATKRKTKLMD 1112
+ I ++ ++L + + L+ LA +R+ KL +
Sbjct: 182 EEIEEKLEELNERWEELLELAEERQKKLEE 211
Score = 134 bits (340), Expect = 1e-35
Identities = 74/211 (35%), Positives = 128/211 (60%), Gaps = 2/211 (0%)
Query: 363 DFYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLA 422
F RD ++ E W+S +E L++ + ++VEAL+KKHE + + AHEE++ AL L
Sbjct: 4 QFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNELG 63
Query: 423 DQLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIA 482
+QLI H A+ I ++ +++ RW L+E E+R RL E+ LQQF RDAD++E W+
Sbjct: 64 EQLIEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQWLE 123
Query: 483 EKL-QLATEESYKDPANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSEE 541
EK LA+E+ KD +++ +KH+ E EL A+ R++S+ + + L+++ ++E
Sbjct: 124 EKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHP-DADE 182
Query: 542 AVQARLASIADQWEFLTQKTTEKSLKLKEAN 572
++ +L + ++WE L + E+ KL+EA
Sbjct: 183 EIEEKLEELNERWEELLELAEERQKKLEEAL 213
Score = 133 bits (336), Expect = 4e-35
Identities = 85/214 (39%), Positives = 136/214 (63%), Gaps = 4/214 (1%)
Query: 691 LQQFSRDADEMENWIAEKLQLATEESY-KDPANIQSKHQKHQAFEAELAANADRIQSVLA 749
LQQF RDADE+E W++EK +L + Y D ++++ +KH+A EAELAA+ +R++++
Sbjct: 2 LQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNE 61
Query: 750 MGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIAAVKDLD 809
+G+ LI++ E +Q RL + +WE L + E+ +L+EA + + DL+
Sbjct: 62 LGEQLIEEGHP--DAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLE 119
Query: 810 FWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQADSLIDSGQFD 869
WL E E+ L SED GKDL SV+ L+KKH+ +E +++AH+ R+K +N A+ L++ G D
Sbjct: 120 QWLEEKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPD 179
Query: 870 AS-SIQEKRQSINERYERIKNLAAHRQARLNEAN 902
A I+EK + +NER+E + LA RQ +L EA
Sbjct: 180 ADEEIEEKLEELNERWEELLELAEERQKKLEEAL 213
Score = 131 bits (330), Expect = 3e-34
Identities = 72/208 (34%), Positives = 127/208 (61%), Gaps = 2/208 (0%)
Query: 590 KDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQL 649
+D ++ E W+S +E L++ + ++VEAL+KKHE + + AHEE++ AL L +QL
Sbjct: 7 RDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNELGEQL 66
Query: 650 IAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKL 709
I H A+ I ++ +++ RW L+E E+R RL E+ LQQF RDAD++E W+ EK
Sbjct: 67 IEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQWLEEKE 126
Query: 710 -QLATEESYKDPANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQ 768
LA+E+ KD +++ +KH+ E EL A+ R++S+ + + L+++ ++E ++
Sbjct: 127 AALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHP-DADEEIE 185
Query: 769 ARLASIADQWEFLTQKTTEKSLKLKEAN 796
+L + ++WE L + E+ KL+EA
Sbjct: 186 EKLEELNERWEELLELAEERQKKLEEAL 213
Score = 119 bits (300), Expect = 3e-30
Identities = 71/209 (33%), Positives = 122/209 (58%), Gaps = 2/209 (0%)
Query: 1010 YQHFLAKVEEEEAWISEKQQLLSVEDYGDTMAAVQGLLKKHDAFETDFSVHRDRCADICS 1069
Q FL +E EAW+SEK++LLS DYGD + +V+ LLKKH+A E + + H +R +
Sbjct: 2 LQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNE 61
Query: 1070 AGNKLIEAKNHHADSITQRCQQLQLKLDNLMALATKRKTKLMDNSAYLQFMWKADVVESW 1129
G +LIE + A+ I +R ++L + + L LA +R+ +L + QF AD +E W
Sbjct: 62 LGEQLIEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQW 121
Query: 1130 IADKETHVKSEEYGRDLSTVQTLLTKQETFDAGLHAFEHEGIQNITTLKDQLVASNH-DQ 1188
+ +KE + SE+ G+DL +V+ LL K + + L A E ++++ L ++L+ H D
Sbjct: 122 LEEKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPR-LKSLNELAEELLEEGHPDA 180
Query: 1189 TPAIVKRHGDVIARWQKLLGDSNARKQRL 1217
I ++ ++ RW++LL + R+++L
Sbjct: 181 DEEIEEKLEELNERWEELLELAEERQKKL 209
Score = 117 bits (295), Expect = 1e-29
Identities = 71/224 (31%), Positives = 131/224 (58%), Gaps = 15/224 (6%)
Query: 467 LQQFSRDADEMENWIAEKLQLATEESY-KDPANIQSKHQKHQAFEAELAANADRIQSVLA 525
LQQF RDADE+E W++EK +L + Y D ++++ +KH+A EAELAA+ +R++++
Sbjct: 2 LQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNE 61
Query: 526 MGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIAAVKDLP 585
+G+ LI++ E +Q RL + +WE L + E+ +L+EA + +
Sbjct: 62 LGEQLIEEGHP--DAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFR------ 113
Query: 586 YFSKKDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTL 645
D + E W+ +EA L +E++ ++VE L+KKH++ ++ + AHE ++ +L L
Sbjct: 114 -----DADDLEQWLEEKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNEL 168
Query: 646 ADQLIAADHYAAKP-IDDKRKQVLDRWRLLKEALIEKRSRLGES 688
A++L+ H A I++K +++ +RW L E E++ +L E+
Sbjct: 169 AEELLEEGHPDADEEIEEKLEELNERWEELLELAEERQKKLEEA 212
Score = 77.9 bits (192), Expect = 7e-16
Identities = 55/256 (21%), Positives = 102/256 (39%), Gaps = 46/256 (17%)
Query: 1116 YLQFMWKADVVESWIADKETHVKSEEYGRDLSTVQTLLTKQETFDAGLHAFEHEGIQNIT 1175
QF+ AD +E+W+++KE + S +YG DL +V+ LL K E +A L A E E ++ +
Sbjct: 2 LQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHE-ERVEALN 60
Query: 1176 TLKDQLVASNHDQTPAIVKRHGDVIARWQKLLGDSNARKQRLLRMQEQFRQIEDLYLTFA 1235
L +QL+ H I +R ++ RW++L + R+QRL + + D
Sbjct: 61 ELGEQLIEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRD------ 114
Query: 1236 KKASSFNKPQPLSRDMEMSLQDGRSYLEIPMPGNNVFSASSFNSWFENAEEDLTDPVRCN 1295
A W E E L
Sbjct: 115 --------------------------------------ADDLEQWLEEKEAALASEDLGK 136
Query: 1296 SIEEIRALREAHAQFQASLSSAQADFEALAALDQQ-IKSFNVGPNPYTWFTMEALEDTWR 1354
+E + L + H + + L + + ++L L ++ ++ + + +E L + W
Sbjct: 137 DLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPDADEEIEEKLEELNERWE 196
Query: 1355 NLQKIIKERDIELAKE 1370
L ++ +ER +L +
Sbjct: 197 ELLELAEERQKKLEEA 212
Score = 70.2 bits (172), Expect = 3e-13
Identities = 41/101 (40%), Positives = 58/101 (57%)
Query: 1 MEQIVHLWESLATATEKKGNKLQEASQQQGFNRTIEDIELWLSEIEGQLMSEDYGKDLTS 60
+E++ WE L E++ +L+EA Q F R +D+E WL E E L SED GKDL S
Sbjct: 81 LEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQWLEEKEAALASEDLGKDLES 140
Query: 61 VQNLQKKHALLEADVASHLDRIESVKAATEQFLEHYGKDED 101
V+ L KKH LE ++ +H R++S+ E+ LE D D
Sbjct: 141 VEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPDAD 181
Score = 67.1 bits (164), Expect = 4e-12
Identities = 47/213 (22%), Positives = 81/213 (38%), Gaps = 14/213 (6%)
Query: 1274 ASSFNSWFENAEEDLTDPVRCNSIEEIRALREAHAQFQASLSSAQADFEALAALDQQIKS 1333
A +W EE L+ + +E + AL + H +A L++ + EAL L +Q+
Sbjct: 9 ADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALNELGEQLIE 68
Query: 1334 FNVGPNPYTWFTMEALEDTWRNLQKIIKERDIELAKEATRQDENDALRKEFAKHANAFHQ 1393
+E L W L+++ +ER L + Q Q
Sbjct: 69 EGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADD--------LEQ 120
Query: 1394 WLTET-----RTSMMEGTGSLEQQLEAIKRKAAEVRSRRSDLKKIEDLGAILEEHLILDN 1448
WL E + + S+E+ L+ K E+ + LK + +L L E D
Sbjct: 121 WLEEKEAALASEDLGKDLESVEELLKKHKELEEELEAHEPRLKSLNELAEELLEEGHPDA 180
Query: 1449 -RYTEHSTVGLAQQWDQLDQLGMRMQHNLEQQI 1480
E L ++W++L +L Q LE+ +
Sbjct: 181 DEEIEEKLEELNERWEELLELAEERQKKLEEAL 213
Score = 65.2 bits (159), Expect = 2e-11
Identities = 38/137 (27%), Positives = 75/137 (54%), Gaps = 5/137 (3%)
Query: 233 EQVLNRYADFKSEARSKREKLEDITVKEVKILET----ANDIQERREQVLNRYADFKSEA 288
E +L ++ ++E + E++E + +++E A +IQER E++ R+ + + A
Sbjct: 36 EALLKKHEALEAELAAHEERVEALNELGEQLIEEGHPDAEEIQERLEELNQRWEELRELA 95
Query: 289 RSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESY-KETTNLQAKIQKHQAFEAEV 347
+R++LE++ Q F RDAD+LE W+ EK A + E K+ +++ ++KH+ E E+
Sbjct: 96 EERRQRLEEALDLQQFFRDADDLEQWLEEKEAALASEDLGKDLESVEELLKKHKELEEEL 155
Query: 348 AAHSNAIVVLDNTGNDF 364
AH + L+ +
Sbjct: 156 EAHEPRLKSLNELAEEL 172
Score = 60.9 bits (148), Expect = 5e-10
Identities = 58/233 (24%), Positives = 98/233 (42%), Gaps = 26/233 (11%)
Query: 27 QQQGFNRTIEDIELWLSEIEGQLMSEDYGKDLTSVQNLQKKHALLEADVASHLDRIESVK 86
+ Q F R +++E WLSE E L S DYG DL SV+ L KKH LEA++A+H +R+E++
Sbjct: 1 KLQQFLRDADELEAWLSEKEELLSSTDYGDDLESVEALLKKHEALEAELAAHEERVEALN 60
Query: 87 AATEQFLEHYGKDEDS----SEALLKKHEALVSDLEAFGNTILGLREQAQSCRQQETPVI 142
EQ +E D + E L ++ E L E + + Q R +
Sbjct: 61 ELGEQLIEEGHPDAEEIQERLEELNQRWEELRELAEERRQRLEEALDLQQFFRDADDLEQ 120
Query: 143 DVTGKECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
+ KE +A D K V L + E+ +
Sbjct: 121 WLEEKEAALASEDL-GKDLESVEELLKKHKEL---------EEELEAHEPR--------- 161
Query: 203 EAGLTASQQNLADVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLED 255
L + + ++ E + +I+E+ E++ R+ + A +++KLE+
Sbjct: 162 ---LKSLNELAEELLEEGHPDADEEIEEKLEELNERWEELLELAEERQKKLEE 211
>gnl|CDD|212742 cd11808, SH3_Alpha_Spectrin, Src homology 3 domain of Alpha
Spectrin. Spectrin is a major structural component of
the red blood cell membrane skeleton and is important in
erythropoiesis and membrane biogenesis. It is a
flexible, rope-like molecule composed of two subunits,
alpha and beta, which consist of many spectrin-type
repeats. Alpha and beta spectrin associate to form
heterodimers and tetramers; spectrin tetramer formation
is critical for red cell shape and deformability.
Defects in alpha spectrin have been associated with
inherited hemolytic anemias including hereditary
spherocytosis (HSp), hereditary elliptocytosis (HE), and
hereditary pyropoikilocytosis (HPP). Alpha spectrin
contains a middle SH3 domain and a C-terminal EF-hand
binding motif in addition to multiple spectrin repeats.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 111 bits (279), Expect = 2e-29
Identities = 48/53 (90%), Positives = 51/53 (96%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
CV+ALYDY EKSPREVSMKK D+LTLLNS+NKDWWKVEVNDRQGFVPAAYVKK
Sbjct: 1 CVVALYDYQEKSPREVSMKKGDILTLLNSSNKDWWKVEVNDRQGFVPAAYVKK 53
>gnl|CDD|215918 pfam00435, Spectrin, Spectrin repeat. Spectrin repeat-domains are
found in several proteins involved in cytoskeletal
structure. These include spectrin, alpha-actinin and
dystrophin. The sequence repeat used in this family is
taken from the structural repeat in reference. The
spectrin domain- repeat forms a three helix bundle. The
second helix is interrupted by proline in some sequences.
The repeats are defined by a characteristic tryptophan
(W) residue at position 17 in helix A and a leucine (L)
at 2 residues from the carboxyl end of helix C. Although
the domain occurs in ultiple repeats along sequences, the
domains are actually stable on their own - ie they act,
biophysically, like domains rather than repeats that
along function when aggregated.
Length = 105
Score = 95.8 bits (239), Expect = 2e-23
Identities = 55/103 (53%), Positives = 73/103 (70%)
Query: 904 LHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQNVQE 963
L QFFRD D ESWI+EK+ L+ S+DYG+DL VQ L KKHK LEAELA+HQ ++ + E
Sbjct: 3 LQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNE 62
Query: 964 TGEKLMDVSNLGVPEIEQRLKLLNQAWSELKQLAANRGQKLDE 1006
EKL+ + EI++RL+ LN+ W +L +LAA R QKL+E
Sbjct: 63 LAEKLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 81.2 bits (201), Expect = 3e-18
Identities = 45/105 (42%), Positives = 70/105 (66%)
Query: 796 NKQRTYIAAVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDM 855
+ + DL+ W+ E E+LL+SED GKDL SVQ L+KKH+ +EA++ AH DR++ +
Sbjct: 1 LLLQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEAL 60
Query: 856 NGQADSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQARLNE 900
N A+ LI G + + IQE+ + +NER+E++ LAA R+ +L E
Sbjct: 61 NELAEKLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 78.9 bits (195), Expect = 2e-17
Identities = 35/100 (35%), Positives = 67/100 (67%)
Query: 364 FYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLAD 423
F+RD + E+W+ +EA L++E+ ++V+AL+KKH+ + + AH++++ AL LA+
Sbjct: 6 FFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNELAE 65
Query: 424 QLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGE 463
+LIA HYA++ I ++ +++ +RW L E E++ +L E
Sbjct: 66 KLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 75.0 bits (185), Expect = 5e-16
Identities = 33/99 (33%), Positives = 65/99 (65%)
Query: 589 KKDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQ 648
+D + E+W+ +EA L++E+ ++V+AL+KKH+ + + AH++++ AL LA++
Sbjct: 7 FRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNELAEK 66
Query: 649 LIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGE 687
LIA HYA++ I ++ +++ +RW L E E++ +L E
Sbjct: 67 LIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 74.3 bits (183), Expect = 9e-16
Identities = 43/105 (40%), Positives = 68/105 (64%), Gaps = 3/105 (2%)
Query: 467 LQQFSRDADEMENWIAEKLQLATEESY-KDPANIQSKHQKHQAFEAELAANADRIQSVLA 525
LQQF RDAD++E+WI EK L + E Y KD ++Q+ +KH+A EAELAA+ DR++++
Sbjct: 3 LQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNE 62
Query: 526 MGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKE 570
+ + LI + + E +Q RL + ++WE L + E+ KL+E
Sbjct: 63 LAEKLIAEG--HYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 74.3 bits (183), Expect = 9e-16
Identities = 43/105 (40%), Positives = 68/105 (64%), Gaps = 3/105 (2%)
Query: 691 LQQFSRDADEMENWIAEKLQLATEESY-KDPANIQSKHQKHQAFEAELAANADRIQSVLA 749
LQQF RDAD++E+WI EK L + E Y KD ++Q+ +KH+A EAELAA+ DR++++
Sbjct: 3 LQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNE 62
Query: 750 MGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKE 794
+ + LI + + E +Q RL + ++WE L + E+ KL+E
Sbjct: 63 LAEKLIAEG--HYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 72.0 bits (177), Expect = 6e-15
Identities = 38/104 (36%), Positives = 62/104 (59%), Gaps = 1/104 (0%)
Query: 1116 YLQFMWKADVVESWIADKETHVKSEEYGRDLSTVQTLLTKQETFDAGLHAFEHEGIQNIT 1175
QF AD +ESWI +KE + SE+YG+DL +VQ LL K + +A L A + + ++ +
Sbjct: 3 LQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQ-DRVEALN 61
Query: 1176 TLKDQLVASNHDQTPAIVKRHGDVIARWQKLLGDSNARKQRLLR 1219
L ++L+A H + I +R ++ RW++LL + RKQ+L
Sbjct: 62 ELAEKLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 70.4 bits (173), Expect = 2e-14
Identities = 39/101 (38%), Positives = 60/101 (59%)
Query: 1010 YQHFLAKVEEEEAWISEKQQLLSVEDYGDTMAAVQGLLKKHDAFETDFSVHRDRCADICS 1069
Q F ++ E+WI EK+ LLS EDYG + +VQ LLKKH A E + + H+DR +
Sbjct: 3 LQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNE 62
Query: 1070 AGNKLIEAKNHHADSITQRCQQLQLKLDNLMALATKRKTKL 1110
KLI ++ ++ I +R ++L + + L+ LA +RK KL
Sbjct: 63 LAEKLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKL 103
Score = 58.9 bits (143), Expect = 2e-10
Identities = 34/82 (41%), Positives = 48/82 (58%)
Query: 27 QQQGFNRTIEDIELWLSEIEGQLMSEDYGKDLTSVQNLQKKHALLEADVASHLDRIESVK 86
Q F R +D+E W+ E E L SEDYGKDL SVQ L KKH LEA++A+H DR+E++
Sbjct: 2 LLQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALN 61
Query: 87 AATEQFLEHYGKDEDSSEALLK 108
E+ + + + L+
Sbjct: 62 ELAEKLIAEGHYASEEIQERLE 83
Score = 53.9 bits (130), Expect = 1e-08
Identities = 24/94 (25%), Positives = 42/94 (44%)
Query: 1274 ASSFNSWFENAEEDLTDPVRCNSIEEIRALREAHAQFQASLSSAQADFEALAALDQQIKS 1333
A SW E E L+ +E ++AL + H +A L++ Q EAL L +++ +
Sbjct: 10 ADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNELAEKLIA 69
Query: 1334 FNVGPNPYTWFTMEALEDTWRNLQKIIKERDIEL 1367
+ +E L + W L ++ ER +L
Sbjct: 70 EGHYASEEIQERLEELNERWEQLLELAAERKQKL 103
Score = 49.6 bits (119), Expect = 4e-07
Identities = 18/101 (17%), Positives = 41/101 (40%), Gaps = 5/101 (4%)
Query: 1383 EFAKHANAFHQWLTETRTSMMEG-----TGSLEQQLEAIKRKAAEVRSRRSDLKKIEDLG 1437
+F + A+ W+ E + S++ L+ K AE+ + + ++ + +L
Sbjct: 5 QFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEALNELA 64
Query: 1438 AILEEHLILDNRYTEHSTVGLAQQWDQLDQLGMRMQHNLEQ 1478
L + + L ++W+QL +L + LE+
Sbjct: 65 EKLIAEGHYASEEIQERLEELNERWEQLLELAAERKQKLEE 105
Score = 48.1 bits (115), Expect = 1e-06
Identities = 29/67 (43%), Positives = 40/67 (59%), Gaps = 1/67 (1%)
Query: 299 RRFQYFKRDADELESWIYEKLQAASDESY-KETTNLQAKIQKHQAFEAEVAAHSNAIVVL 357
Q F RDAD+LESWI EK S E Y K+ ++QA ++KH+A EAE+AAH + + L
Sbjct: 1 LLLQQFFRDADDLESWIEEKEALLSSEDYGKDLESVQALLKKHKALEAELAAHQDRVEAL 60
Query: 358 DNTGNDF 364
+
Sbjct: 61 NELAEKL 67
>gnl|CDD|197544 smart00150, SPEC, Spectrin repeats.
Length = 101
Score = 93.5 bits (233), Expect = 1e-22
Identities = 45/101 (44%), Positives = 69/101 (68%)
Query: 905 HQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQNVQET 964
QF RD + E+W++EK+ L+ S+D G+DL V+ L KKH+ EAEL +H+ ++ + E
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 965 GEKLMDVSNLGVPEIEQRLKLLNQAWSELKQLAANRGQKLD 1005
GE+L++ + EIE+RL+ LN+ W ELK+LA R QKL+
Sbjct: 61 GEQLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKLE 101
Score = 82.8 bits (205), Expect = 7e-19
Identities = 42/101 (41%), Positives = 68/101 (67%)
Query: 799 RTYIAAVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQ 858
+ ++ +L+ WL E E LL SED GKDL SV+ L+KKH+ EA+++AH++R++ +N
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 859 ADSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQARLN 899
+ LI+ G DA I+E+ + +NER+E +K LA R+ +L
Sbjct: 61 GEQLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKLE 101
Score = 80.1 bits (198), Expect = 8e-18
Identities = 38/98 (38%), Positives = 63/98 (64%)
Query: 364 FYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLAD 423
F RD ++ E W+ +E L +E++ ++VEAL+KKHE F+ + AHEE++ AL L +
Sbjct: 3 FLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNELGE 62
Query: 424 QLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRL 461
QLI H A+ I+++ +++ +RW LKE E+R +L
Sbjct: 63 QLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKL 100
Score = 78.9 bits (195), Expect = 2e-17
Identities = 40/100 (40%), Positives = 61/100 (61%)
Query: 1011 QHFLAKVEEEEAWISEKQQLLSVEDYGDTMAAVQGLLKKHDAFETDFSVHRDRCADICSA 1070
Q FL +E EAW+ EK+QLL+ ED G + +V+ LLKKH+AFE + H +R +
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 1071 GNKLIEAKNHHADSITQRCQQLQLKLDNLMALATKRKTKL 1110
G +LIE + A+ I +R ++L + + L LA +R+ KL
Sbjct: 61 GEQLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKL 100
Score = 76.2 bits (188), Expect = 2e-16
Identities = 36/96 (37%), Positives = 62/96 (64%)
Query: 590 KDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQL 649
+D ++ E W+ +E L +E++ ++VEAL+KKHE F+ + AHEE++ AL L +QL
Sbjct: 5 RDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNELGEQL 64
Query: 650 IAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRL 685
I H A+ I+++ +++ +RW LKE E+R +L
Sbjct: 65 IEEGHPDAEEIEERLEELNERWEELKELAEERRQKL 100
Score = 70.4 bits (173), Expect = 2e-14
Identities = 40/103 (38%), Positives = 68/103 (66%), Gaps = 3/103 (2%)
Query: 468 QQFSRDADEMENWIAEKLQ-LATEESYKDPANIQSKHQKHQAFEAELAANADRIQSVLAM 526
QQF RDADE+E W+ EK Q LA+E+ KD ++++ +KH+AFEAEL A+ +R++++ +
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 527 GQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLK 569
G+ LI++ E ++ RL + ++WE L + E+ KL+
Sbjct: 61 GEQLIEEGH--PDAEEIEERLEELNERWEELKELAEERRQKLE 101
Score = 70.4 bits (173), Expect = 2e-14
Identities = 40/103 (38%), Positives = 68/103 (66%), Gaps = 3/103 (2%)
Query: 692 QQFSRDADEMENWIAEKLQ-LATEESYKDPANIQSKHQKHQAFEAELAANADRIQSVLAM 750
QQF RDADE+E W+ EK Q LA+E+ KD ++++ +KH+AFEAEL A+ +R++++ +
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 751 GQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLK 793
G+ LI++ E ++ RL + ++WE L + E+ KL+
Sbjct: 61 GEQLIEEGH--PDAEEIEERLEELNERWEELKELAEERRQKLE 101
Score = 68.9 bits (169), Expect = 6e-14
Identities = 36/100 (36%), Positives = 60/100 (60%), Gaps = 1/100 (1%)
Query: 1118 QFMWKADVVESWIADKETHVKSEEYGRDLSTVQTLLTKQETFDAGLHAFEHEGIQNITTL 1177
QF+ AD +E+W+ +KE + SE+ G+DL +V+ LL K E F+A L A E E ++ + L
Sbjct: 2 QFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHE-ERVEALNEL 60
Query: 1178 KDQLVASNHDQTPAIVKRHGDVIARWQKLLGDSNARKQRL 1217
+QL+ H I +R ++ RW++L + R+Q+L
Sbjct: 61 GEQLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKL 100
Score = 61.6 bits (150), Expect = 2e-11
Identities = 33/85 (38%), Positives = 50/85 (58%), Gaps = 3/85 (3%)
Query: 29 QGFNRTIEDIELWLSEIEGQLMSEDYGKDLTSVQNLQKKHALLEADVASHLDRIESVKAA 88
Q F R +++E WL E E L SED GKDL SV+ L KKH EA++ +H +R+E++
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 89 TEQFLEHYGKDEDSSEALLKKHEAL 113
EQ +E + +E + ++ E L
Sbjct: 61 GEQLIE---EGHPDAEEIEERLEEL 82
Score = 48.9 bits (117), Expect = 6e-07
Identities = 30/85 (35%), Positives = 45/85 (52%), Gaps = 1/85 (1%)
Query: 302 QYFKRDADELESWIYEKLQAASDESY-KETTNLQAKIQKHQAFEAEVAAHSNAIVVLDNT 360
Q F RDADELE+W+ EK Q + E K+ +++A ++KH+AFEAE+ AH + L+
Sbjct: 1 QQFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNEL 60
Query: 361 GNDFYRDCEQAENWMSAREAFLNAE 385
G + + R LN
Sbjct: 61 GEQLIEEGHPDAEEIEERLEELNER 85
Score = 44.6 bits (106), Expect = 2e-05
Identities = 24/94 (25%), Positives = 41/94 (43%)
Query: 1274 ASSFNSWFENAEEDLTDPVRCNSIEEIRALREAHAQFQASLSSAQADFEALAALDQQIKS 1333
A +W E E+ L +E + AL + H F+A L + + EAL L +Q+
Sbjct: 7 ADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNELGEQLIE 66
Query: 1334 FNVGPNPYTWFTMEALEDTWRNLQKIIKERDIEL 1367
+E L + W L+++ +ER +L
Sbjct: 67 EGHPDAEEIEERLEELNERWEELKELAEERRQKL 100
Score = 30.0 bits (68), Expect = 2.5
Identities = 19/68 (27%), Positives = 39/68 (57%), Gaps = 4/68 (5%)
Query: 233 EQVLNRYADFKSEARSKREKLEDITVKEVKILET----ANDIQERREQVLNRYADFKSEA 288
E +L ++ F++E + E++E + +++E A +I+ER E++ R+ + K A
Sbjct: 34 EALLKKHEAFEAELEAHEERVEALNELGEQLIEEGHPDAEEIEERLEELNERWEELKELA 93
Query: 289 RSKREKLE 296
+R+KLE
Sbjct: 94 EERRQKLE 101
Score = 29.6 bits (67), Expect = 3.3
Identities = 24/100 (24%), Positives = 44/100 (44%), Gaps = 5/100 (5%)
Query: 1383 EFAKHANAFHQWLTETRTSMM-EGTGSLEQQLEAIKRK----AAEVRSRRSDLKKIEDLG 1437
+F + A+ WL E + E G + +EA+ +K AE+ + ++ + +LG
Sbjct: 2 QFLRDADELEAWLEEKEQLLASEDLGKDLESVEALLKKHEAFEAELEAHEERVEALNELG 61
Query: 1438 AILEEHLILDNRYTEHSTVGLAQQWDQLDQLGMRMQHNLE 1477
L E D E L ++W++L +L + LE
Sbjct: 62 EQLIEEGHPDAEEIEERLEELNERWEELKELAEERRQKLE 101
>gnl|CDD|214620 smart00326, SH3, Src homology 3 domains. Src homology 3 (SH3)
domains bind to target proteins through sequences
containing proline and hydrophobic amino acids.
Pro-containing polypeptides may bind to SH3 domains in 2
different binding orientations.
Length = 56
Score = 66.8 bits (164), Expect = 9e-14
Identities = 22/56 (39%), Positives = 34/56 (60%), Gaps = 1/56 (1%)
Query: 146 GKECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAYVK 200
V ALYDYT + P E+S KK D++T+L ++ WWK + ++G P+ YV+
Sbjct: 1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGRGKEGLFPSNYVE 56
>gnl|CDD|212690 cd00174, SH3, Src Homology 3 domain superfamily. Src Homology 3
(SH3) domains are protein interaction domains that bind
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. Thus, they
are referred to as proline-recognition domains (PRDs).
SH3 domains are less selective and show more diverse
specificity compared to other PRDs. They have been shown
to bind peptide sequences that lack the PxxP motif;
examples include the PxxDY motif of Eps8 and the
RKxxYxxY sequence in SKAP55. SH3 domain containing
proteins play versatile and diverse roles in the cell,
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies, among others. Many members of this
superfamily are adaptor proteins that associate with a
number of protein partners, facilitating complex
formation and signal transduction.
Length = 51
Score = 64.4 bits (158), Expect = 5e-13
Identities = 21/50 (42%), Positives = 31/50 (62%), Gaps = 1/50 (2%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAY 198
ALYDY + E+S KK D++T+L ++ WW+ E+N R+G PA Y
Sbjct: 2 ARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELNGGREGLFPANY 51
>gnl|CDD|238008 cd00051, EFh, EF-hand, calcium binding motif; A diverse superfamily
of calcium sensors and calcium signal modulators; most
examples in this alignment model have 2 active canonical
EF hands. Ca2+ binding induces a conformational change in
the EF-hand motif, leading to the activation or
inactivation of target proteins. EF-hands tend to occur
in pairs or higher copy numbers.
Length = 63
Score = 63.7 bits (156), Expect = 1e-12
Identities = 21/69 (30%), Positives = 36/69 (52%), Gaps = 7/69 (10%)
Query: 1495 EFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNRDGHV 1554
E F+ FDKD G ++ E K+ L++LG EG + E + ++ VD + DG +
Sbjct: 1 ELREAFRLFDKDGDGTISADELKAALKSLG-------EGLSEEEIDEMIREVDKDGDGKI 53
Query: 1555 SLQEYMAFM 1563
+E++ M
Sbjct: 54 DFEEFLELM 62
Score = 31.4 bits (72), Expect = 0.38
Identities = 9/23 (39%), Positives = 13/23 (56%)
Query: 1494 KEFSMMFKHFDKDKSGKLNQTEF 1516
+E M + DKD GK++ EF
Sbjct: 36 EEIDEMIREVDKDGDGKIDFEEF 58
>gnl|CDD|215659 pfam00018, SH3_1, SH3 domain. SH3 (Src homology 3) domains are
often indicative of a protein involved in signal
transduction related to cytoskeletal organisation. First
described in the Src cytoplasmic tyrosine kinase. The
structure is a partly opened beta barrel.
Length = 47
Score = 61.4 bits (150), Expect = 5e-12
Identities = 18/47 (38%), Positives = 31/47 (65%), Gaps = 1/47 (2%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPA 196
+ALYDYT + P E+S KK D++ +L ++ WWK + ++G +P+
Sbjct: 1 VALYDYTAREPDELSFKKGDIIIVLEKSDDGWWKGRLKGGKEGLIPS 47
>gnl|CDD|212739 cd11805, SH3_GRB2_like_C, C-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have
been shown to bind to classical PxxP motif ligands, as
well as to non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 59.2 bits (144), Expect = 4e-11
Identities = 22/52 (42%), Positives = 35/52 (67%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
V ALYD+ + P E+ ++ D++T+L+S++ DWWK E+ R G PA YV+
Sbjct: 2 VQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWKGELRGRVGIFPANYVQP 53
>gnl|CDD|212929 cd11996, SH3_Intersectin2_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The fifth SH3 domain (or
SH3E) of ITSN2 is expected to bind protein partners,
similar to ITSN1 which has been shown to bind many
protein partners including SGIP1, Sos1, dynamin1/2,
CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among
others. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 56.9 bits (137), Expect = 3e-10
Identities = 22/51 (43%), Positives = 33/51 (64%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
VIA+YDYT + E+S K ++ +LN ++ DWW+ E+N G P+ YVK
Sbjct: 3 VIAMYDYTANNEDELSFSKGQLINVLNKDDPDWWQGEINGVTGLFPSNYVK 53
>gnl|CDD|212743 cd11809, SH3_srGAP, Src homology 3 domain of Slit-Robo GTPase
Activating Proteins. Slit-Robo GTPase Activating
Proteins (srGAPs) are Rho GAPs that interact with Robo1,
the transmembrane receptor of Slit proteins. Slit
proteins are secreted proteins that control axon
guidance and the migration of neurons and leukocytes.
Vertebrates contain three isoforms of srGAPs (srGAP1-3),
all of which are expressed during embryonic and early
development in the nervous system but with different
localization and timing. A fourth member has also been
reported (srGAP4, also called ARHGAP4). srGAPs contain
an N-terminal F-BAR domain, a Rho GAP domain, and a
C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 56.6 bits (137), Expect = 4e-10
Identities = 22/49 (44%), Positives = 31/49 (63%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
A +DYT +S RE+S KK D LTL + DWW+ ++N + G VP Y+
Sbjct: 3 TAQFDYTGRSERELSFKKGDSLTLYRQVSDDWWRGQLNGQDGLVPHKYI 51
>gnl|CDD|212779 cd11845, SH3_Src_like, Src homology 3 domain of Src kinase-like
Protein Tyrosine Kinases. Src subfamily members include
Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk.
Src (or c-Src) proteins are cytoplasmic (or
non-receptor) PTKs which are anchored to the plasma
membrane. They contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). However,
Brk lacks the N-terminal myristoylation sites. Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. They were identified as the first
proto-oncogene products, and they regulate cell
adhesion, invasion, and motility in cancer cells, and
tumor vasculature, contributing to cancer progression
and metastasis. Src kinases are overexpressed in a
variety of human cancers, making them attractive targets
for therapy. They are also implicated in acute
inflammatory responses and osteoclast function. Src,
Fyn, Yes, and Yrk are widely expressed, while Blk, Lck,
Hck, Fgr, Lyn, and Brk show a limited expression
pattern. This subfamily also includes Drosophila Src42A,
Src oncogene at 42A (also known as Dsrc41) which
accumulates at sites of cell-cell or cell-matrix
adhesion, and participates in Drosphila development and
wound healing. It has been shown to promote tube
elongation in the tracheal system, is essential for
proper cell-cell matching during dorsal closure, and
regulates cell-cell contacts in developing Drosophila
eyes. The SH3 domain of Src kinases contributes to
substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 55.3 bits (134), Expect = 1e-09
Identities = 17/51 (33%), Positives = 31/51 (60%), Gaps = 2/51 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAY 198
+ALYDY ++ ++S KK D L +L+ ++ DWW ++G++P+ Y
Sbjct: 2 YVALYDYEARTDDDLSFKKGDRLQILDDSDGDWWLARHLSTGKEGYIPSNY 52
>gnl|CDD|212746 cd11812, SH3_AHI-1, Src Homology 3 domain of Abelson helper
integration site-1 (AHI-1). AHI-1, also called
Jouberin, is expressed in high levels in the brain,
gonad tissues, and skeletal muscle. It is an adaptor
protein that interacts with the small GTPase Rab8a and
regulates it distribution and function, affecting cilium
formation and vesicle transport. Mutations in the AHI-1
gene can cause Joubert syndrome, a disorder
characterized by brainstem malformations, cerebellar
aplasia/hypoplasia, and retinal dystrophy. AHI-1
variation is also associated with susceptibility to
schizophrenia and type 2 diabetes mellitus progression.
AHI-1 contains WD40 and SH3 domains. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 54.8 bits (132), Expect = 1e-09
Identities = 21/51 (41%), Positives = 33/51 (64%), Gaps = 1/51 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYV 199
V+ALYDYT E+++ + D++ +L +N +WW VN +QG+ PA YV
Sbjct: 2 VVALYDYTANRSDELTIHRGDIIRVLYKDNDNWWFGSLVNGQQGYFPANYV 52
>gnl|CDD|212734 cd11800, SH3_DNMBP_C2_like, Second C-terminal Src homology 3 domain
of Dynamin Binding Protein, also called Tuba, and
similar domains. DNMBP or Tuba is a cdc42-specific
guanine nucleotide exchange factor (GEF) that contains
four N-terminal SH3 domains, a central RhoGEF [or Dbl
homology (DH)] domain followed by a Bin/Amphiphysin/Rvs
(BAR) domain, and two C-terminal SH3 domains. It
provides a functional link between dynamin, Rho GTPase
signaling, and actin dynamics. It plays an important
role in regulating cell junction configuration. The
C-terminal SH3 domains of DNMBP bind to N-WASP and
Ena/VASP proteins, which are key regulatory proteins of
the actin cytoskeleton. Also included in this subfamily
is the second C-terminal SH3 domain of Rho guanine
nucleotide exchange factor 37 (ARHGEF37), whose function
is still unknown. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 54.7 bits (132), Expect = 2e-09
Identities = 21/56 (37%), Positives = 33/56 (58%), Gaps = 4/56 (7%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLN----SNNKDWWKVEVNDRQGFVPAAYVKK 201
ALY + +SP E+S+ + V+T+L N +WW VE +QG+VP+ Y+ K
Sbjct: 2 YYALYTFEARSPGELSVTEGQVVTVLEKHDLKGNPEWWLVEDRGKQGYVPSNYLAK 57
>gnl|CDD|212790 cd11856, SH3_p47phox_like, Src homology 3 domains of the p47phox
subunit of NADPH oxidase and similar domains. This
family is composed of the tandem SH3 domains of p47phox
subunit of NADPH oxidase and Nox Organizing protein 1
(NoxO1), the four SH3 domains of Tks4 (Tyr kinase
substrate with four SH3 domains), the five SH3 domains
of Tks5, the SH3 domain of obscurin, Myosin-I, and
similar domains. Most members of this group also contain
Phox homology (PX) domains, except for obscurin and
Myosin-I. p47phox and NoxO1 are regulators of the
phagocytic NADPH oxidase complex (also called Nox2 or
gp91phox) and nonphagocytic NADPH oxidase Nox1,
respectively. They play roles in the activation of their
respective NADPH oxidase, which catalyzes the transfer
of electrons from NADPH to molecular oxygen to form
superoxide. Tks proteins are Src substrates and
scaffolding proteins that play important roles in the
formation of podosomes and invadopodia, the dynamic
actin-rich structures that are related to cell migration
and cancer cell invasion. Obscurin is a giant muscle
protein that plays important roles in the organization
and assembly of the myofibril and the sarcoplasmic
reticulum. Type I myosins (Myosin-I) are actin-dependent
motors in endocytic actin structures and actin patches.
They play roles in membrane traffic in endocytic and
secretory pathways, cell motility, and mechanosensing.
Myosin-I contains an N-terminal actin-activated ATPase,
a phospholipid-binding TH1 (tail homology 1) domain, and
a C-terminal extension which includes an F-actin-binding
TH2 domain, an SH3 domain, and an acidic peptide that
participates in activating the Arp2/3complex. The SH3
domain of myosin-I is required for myosin-I-induced
actin polymerization. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 53.8 bits (130), Expect = 3e-09
Identities = 17/51 (33%), Positives = 34/51 (66%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+A+ DY + E+S+++ +V+ +L N+ WW V D++G+VPA+Y++
Sbjct: 3 VAIADYEAQGDDEISLQEGEVVEVLEKNDSGWWYVRKGDKEGWVPASYLEP 53
>gnl|CDD|212889 cd11956, SH3_srGAP4, Src homology 3 domain of Slit-Robo GTPase
Activating Protein 4. srGAP4, also called ARHGAP4, is
highly expressed in hematopoietic cells and may play a
role in lymphocyte differentiation. It is able to
stimulate the GTPase activity of Rac1, Cdc42, and RhoA.
In the nervous system, srGAP4 has been detected in
differentiating neurites and may be involved in axon and
dendritic growth. srGAPs are Rho GAPs that interact with
Robo1, the transmembrane receptor of Slit proteins. Slit
proteins are secreted proteins that control axon
guidance and the migration of neurons and leukocytes.
srGAPs contain an N-terminal F-BAR domain, a Rho GAP
domain, and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 53.7 bits (129), Expect = 3e-09
Identities = 19/49 (38%), Positives = 32/49 (65%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
+A +DYT ++ +E+S K+ DVL L + + DWW+ E N +G +P Y+
Sbjct: 5 VACFDYTGRTAQELSFKRGDVLLLHSKASSDWWRGEHNGMRGLIPHKYI 53
>gnl|CDD|212702 cd11768, SH3_Tec_like, Src Homology 3 domain of Tec-like Protein
Tyrosine Kinases. The Tec (Tyrosine kinase expressed in
hepatocellular carcinoma) subfamily is composed of Tec,
Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar
proteins. They are cytoplasmic (or nonreceptor) tyr
kinases containing Src homology protein interaction
domains (SH3, SH2) N-terminal to the catalytic tyr
kinase domain. Most Tec subfamily members (except Rlk)
also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. In addition, some
members contain the Tec homology (TH) domain, which
contains proline-rich and zinc-binding regions. Tec
kinases are expressed mainly by haematopoietic cells,
although Tec and Bmx are also found in endothelial
cells. B-cells express Btk and Tec, while T-cells
express Itk, Txk, and Tec. Collectively, Tec kinases are
expressed in a variety of myeloid cells such as mast
cells, platelets, macrophages, and dendritic cells. Each
Tec kinase shows a distinct cell-type pattern of
expression. The function of Tec kinases in lymphoid
cells have been studied extensively. They play important
roles in the development, differentiation, maturation,
regulation, survival, and function of B-cells and
T-cells. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 53.4 bits (129), Expect = 4e-09
Identities = 16/53 (30%), Positives = 34/53 (64%), Gaps = 1/53 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV-EVNDRQGFVPAAYVKK 201
V+ALYD+ P ++ ++K + +L+ +N+ WW+ + N +G++P+ YV +
Sbjct: 2 VVALYDFQPIEPGDLPLEKGEEYVVLDDSNEHWWRARDKNGNEGYIPSNYVTE 54
>gnl|CDD|212774 cd11840, SH3_Intersectin_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The fifth SH3 domain (or SH3E) of
ITSN1 has been shown to bind many protein partners
including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2,
N-WASP, and synaptojanin-1, among others. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 53.2 bits (128), Expect = 6e-09
Identities = 20/51 (39%), Positives = 36/51 (70%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
VIAL+ YT ++ E+S +K D++ +L+ ++ DWW+ E+N + G P+ YV+
Sbjct: 2 VIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNGQTGLFPSNYVE 52
>gnl|CDD|212706 cd11772, SH3_OSTF1, Src Homology 3 domain of metazoan osteoclast
stimulating factor 1. OSTF1, also named OSF or SH3P2,
is a signaling protein containing SH3 and ankyrin-repeat
domains. It acts through a Src-related pathway to
enhance the formation of osteoclasts and bone
resorption. It also acts as a negative regulator of cell
motility. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 53.1 bits (128), Expect = 7e-09
Identities = 17/51 (33%), Positives = 30/51 (58%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
ALYDY + P E+S ++ D+L + + ++ +WWK + G +P+ YV
Sbjct: 1 VFRALYDYEAQHPDELSFEEGDLLYISDKSDPNWWKATCGGKTGLIPSNYV 51
>gnl|CDD|212928 cd11995, SH3_Intersectin1_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The fifth SH3 domain (or SH3E) of ITSN1 has
been shown to bind many protein partners including
SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP,
and synaptojanin-1, among others. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 53.0 bits (127), Expect = 7e-09
Identities = 21/51 (41%), Positives = 33/51 (64%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
VI +YDYT ++ E++ K ++ +LN + DWWK E+N + G P+ YVK
Sbjct: 3 VIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNGQVGLFPSNYVK 53
>gnl|CDD|212821 cd11888, SH3_ARHGAP9_like, Src Homology 3 domain of Rho
GTPase-activating protein 9 and similar proteins. This
subfamily is composed of Rho GTPase-activating proteins
including mammalian ARHGAP9, and vertebrate ARHGAPs 12
and 27. RhoGAPs (or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP9
functions as a GAP for Rac and Cdc42, but not for RhoA.
It negatively regulates cell migration and adhesion. It
also acts as a docking protein for the MAP kinases Erk2
and p38alpha, and may facilitate cross-talk between the
Rho GTPase and MAPK pathways to control actin
remodeling. ARHGAP27, also called CAMGAP1, shows GAP
activity towards Rac1 and Cdc42. It binds the adaptor
protein CIN85 and may play a role in clathrin-mediated
endocytosis. ARHGAP12 has been shown to display GAP
activity towards Rac1. It plays a role in regulating
HFG-driven cell growth and invasiveness. ARHGAPs in this
subfamily contain SH3, WW, Pleckstin homology (PH), and
RhoGAP domains. SH3 domains bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 54
Score = 52.4 bits (126), Expect = 1e-08
Identities = 21/53 (39%), Positives = 31/53 (58%), Gaps = 4/53 (7%)
Query: 150 VIALYD--YTEKSPREVSMKKSDVLTLLNSNNKDWWKV--EVNDRQGFVPAAY 198
V+ LY YT K R+VS+K+ + LL +N DWW+V + + +VPA Y
Sbjct: 2 VVVLYPFEYTGKDGRKVSIKEGERFLLLKKSNDDWWQVRRPGDSKPFYVPAQY 54
>gnl|CDD|212709 cd11775, SH3_Sla1p_3, Third Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin
while retaining the ability to bind proline-rich
ligands; monoubiquitination of target proteins signals
internalization and sorting through the endocytic
pathway. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 52.3 bits (126), Expect = 1e-08
Identities = 20/54 (37%), Positives = 35/54 (64%), Gaps = 3/54 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLN-SNNKDWWKVEV--NDRQGFVPAAYVK 200
LYD+ +S E+++K+ DV+ +L+ +KDWW VE ++G VPA+Y++
Sbjct: 3 GKVLYDFDAQSDDELTVKEGDVVYILDDKKSKDWWMVENVSTGKEGVVPASYIE 56
>gnl|CDD|212762 cd11828, SH3_ARHGEF9_like, Src homology 3 domain of ARHGEF9-like
Rho guanine nucleotide exchange factors. Members of
this family contain a SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains. They include the Rho guanine
nucleotide exchange factors ARHGEF9, ASEF (also called
ARHGEF4), ASEF2, and similar proteins. GEFs activate
small GTPases by exchanging bound GDP for free GTP.
ARHGEF9 specifically activates Cdc42, while both ASEF
and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly
expressed in the brain and it interacts with gephyrin, a
postsynaptic protein associated with GABA and glycine
receptors. ASEF plays a role in angiogenesis and cell
migration. ASEF2 is important in cell migration and
adhesion dynamics. ASEF exists in an autoinhibited form
and is activated upon binding of the tumor suppressor
APC (adenomatous polyposis coli), leading to the
activation of Rac1 or Cdc42. In its autoinhibited form,
the SH3 domain of ASEF forms an extensive interface with
the DH and PH domains, blocking the Rac binding site.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 51.6 bits (124), Expect = 2e-08
Identities = 18/52 (34%), Positives = 32/52 (61%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL+D+ P E+ K DV+ +L+ ++KDWW + D +G+ PA++V+
Sbjct: 1 LAEALWDHVTMDPEELGFKAGDVIEVLDMSDKDWWWGSIRDEEGWFPASFVR 52
>gnl|CDD|212758 cd11824, SH3_PSTPIP1, Src homology 3 domain of
Proline-Serine-Threonine Phosphatase-Interacting Protein
1. PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1),
is mainly expressed in hematopoietic cells. It is a
binding partner of the cell surface receptor CD2 and
PTP-PEST, a tyrosine phosphatase which functions in cell
motility and Rac1 regulation. It also plays a role in
the activation of the Wiskott-Aldrich syndrome protein
(WASP), which couples actin rearrangement and T cell
activation. Mutations in the gene encoding PSTPIP1 cause
the autoinflammatory disorder known as PAPA (pyogenic
sterile arthritis, pyoderma gangrenosum, and acne)
syndrome. PSTPIP1 contains an N-terminal F-BAR domain,
PEST motifs, and a C-terminal SH3 domain. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 51.2 bits (123), Expect = 3e-08
Identities = 20/51 (39%), Positives = 30/51 (58%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
LYDYT + E+S+ K DV+ ++ WW VE N ++G VP Y++K
Sbjct: 3 SVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTVERNGQKGLVPGTYLEK 53
>gnl|CDD|212767 cd11833, SH3_Stac_1, First C-terminal Src homology 3 domain of SH3
and cysteine-rich domain-containing (Stac) proteins.
Stac proteins are putative adaptor proteins that contain
a cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac1 and
Stac3 contain two SH3 domains while Stac2 contains a
single SH3 domain at the C-terminus. This model
represents the first C-terminal SH3 domain of Stac1 and
Stac3, and the single C-terminal SH3 domain of Stac2.
Stac1 and Stac2 have been found to be expressed
differently in mature dorsal root ganglia (DRG) neurons.
Stac1 is mainly expressed in peptidergic neurons while
Stac2 is found in a subset of nonpeptidergic and all
trkB+ neurons. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 51.0 bits (122), Expect = 4e-08
Identities = 20/51 (39%), Positives = 35/51 (68%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+ALY + + ++ M+ D +TLL+ +N+DWWK ++ DR GF PA +V++
Sbjct: 3 VALYKFKPQENEDLEMRPGDKITLLDDSNEDWWKGKIEDRVGFFPANFVQR 53
>gnl|CDD|212776 cd11842, SH3_Ysc84p_like, Src homology 3 domain of Ysc84p and
similar fungal proteins. This family is composed of the
Saccharomyces cerevisiae proteins, Ysc84p (also called
LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar
fungal proteins. They contain an N-terminal SYLF domain
(also called DUF500) and a C-terminal SH3 domain. Ysc84p
localizes to actin patches and plays an important in
actin polymerization during endocytosis. The N-terminal
domain of both Ysc84p and Lsb3p can bind and bundle
actin filaments. A study of the yeast SH3 domain
interactome predicts that the SH3 domains of Lsb3p and
Lsb4p may function as molecular hubs for the assembly of
endocytic complexes. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 50.5 bits (121), Expect = 5e-08
Identities = 18/53 (33%), Positives = 33/53 (62%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNK--DWWKVEVNDRQGFVPAAYVK 200
+ALYD+ + P +++ +K D++T+L ++ DWW + R+G PA YV+
Sbjct: 2 AVALYDFAGEQPGDLAFQKGDIITILKKSDSQNDWWTGRIGGREGIFPANYVE 54
>gnl|CDD|212802 cd11869, SH3_p40phox, Src Homology 3 domain of the p40phox subunit
of NADPH oxidase. p40phox, also called Neutrophil
cytosol factor 4 (NCF-4), is a cytosolic subunit of the
phagocytic NADPH oxidase complex (also called Nox2 or
gp91phox) which plays a crucial role in the cellular
response to bacterial infection. NADPH oxidase catalyzes
the transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p40phox positively regulates NADPH oxidase in
both phosphatidylinositol-3-phosphate (PI3P)-dependent
and PI3P-independent manner. It contains an N-terminal
PX domain, a central SH3 domain, and a C-terminal PB1
domain that interacts with p67phox. The SH3 domain of
p40phox binds to canonical polyproline and noncanonical
motifs at the C-terminus of p47phox. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 50.2 bits (120), Expect = 6e-08
Identities = 20/49 (40%), Positives = 29/49 (59%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL+D+T S E++ K DV+ LL+ NKDW + V G P ++VK
Sbjct: 4 ALFDFTGNSKLELNFKAGDVIFLLSRVNKDWLEGTVRGATGIFPLSFVK 52
>gnl|CDD|212699 cd11765, SH3_Nck_1, First Src Homology 3 domain of Nck adaptor
proteins. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The first SH3 domain of Nck
proteins preferentially binds the PxxDY sequence, which
is present in the CD3e cytoplasmic tail. This binding
inhibits phosphorylation by Src kinases, resulting in
the downregulation of TCR surface expression. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 49.7 bits (119), Expect = 8e-08
Identities = 24/51 (47%), Positives = 40/51 (78%), Gaps = 2/51 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYV 199
V+A YDYT + +E+S+KK++ LTLL+ ++K WWKV+ +++ G+VP+ YV
Sbjct: 2 VVAKYDYTAQGDQELSIKKNEKLTLLD-DSKHWWKVQNSSNQTGYVPSNYV 51
>gnl|CDD|212703 cd11769, SH3_CSK, Src Homology 3 domain of C-terminal Src kinase.
CSK is a cytoplasmic (or nonreceptor) tyr kinase
containing the Src homology domains, SH3 and SH2,
N-terminal to the catalytic tyr kinase domain. They
negatively regulate the activity of Src kinases that are
anchored to the plasma membrane. To inhibit Src kinases,
CSK is translocated to the membrane via binding to
specific transmembrane proteins, G-proteins, or adaptor
proteins near the membrane. CSK catalyzes the tyr
phosphorylation of the regulatory C-terminal tail of Src
kinases, resulting in their inactivation. It is
expressed in a wide variety of tissues and plays a role,
as a regulator of Src, in cell proliferation, survival,
and differentiation, and consequently, in cancer
development and progression. In addition, CSK also shows
Src-independent functions. It is a critical component in
G-protein signaling, and plays a role in cytoskeletal
reorganization and cell migration. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 57
Score = 50.0 bits (120), Expect = 8e-08
Identities = 24/59 (40%), Positives = 36/59 (61%), Gaps = 5/59 (8%)
Query: 146 GKECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKD--WWKVEVND-RQGFVPAAYVKK 201
G EC IA Y++ S ++ KK D+LT++ KD W+K + D R+G +PA YV+K
Sbjct: 1 GTEC-IAKYNFNGASEEDLPFKKGDILTIVAV-TKDPNWYKAKNKDGREGMIPANYVQK 57
>gnl|CDD|212720 cd11786, SH3_SH3RF_1, First Src Homology 3 domain of SH3 domain
containing ring finger proteins. This model represents
the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or
POSHER), SH3RF3 (POSH2), and similar domains. Members of
this family are scaffold proteins that function as E3
ubiquitin-protein ligases. They all contain an
N-terminal RING finger domain and multiple SH3 domains;
SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has
three. SH3RF1 plays a role in calcium homeostasis
through the control of the ubiquitin domain protein
Herp. It may also have a role in regulating death
receptor mediated and JNK mediated apoptosis. SH3RF3
interacts with p21-activated kinase 2 (PAK2) and
GTP-loaded Rac1. It may play a role in regulating JNK
mediated apoptosis in certain conditions. SH3RF2 acts as
an anti-apoptotic regulator of the JNK pathway by
binding to and promoting the degradation of SH3RF1. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 49.7 bits (119), Expect = 9e-08
Identities = 22/52 (42%), Positives = 34/52 (65%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
C ALY+Y K P ++S KK D++ L +++W+ E N +QGF PA+YV+
Sbjct: 1 CAKALYNYEGKEPGDLSFKKGDIILLRKRIDENWYHGECNGKQGFFPASYVQ 52
>gnl|CDD|212783 cd11849, SH3_SPIN90, Src homology 3 domain of SH3 protein
interacting with Nck, 90 kDa (SPIN90). SPIN90 is also
called NCK interacting protein with SH3 domain
(NCKIPSD), Dia-interacting protein (DIP), 54 kDa
vimentin-interacting protein (VIP54), or
WASP-interacting SH3-domain protein (WISH). It is an
F-actin binding protein that regulates actin
polymerization and endocytosis. It associates with the
Arp2/3 complex near actin filaments and determines
filament localization at the leading edge of
lamellipodia. SPIN90 is expressed in the early stages of
neuronal differentiation and plays a role in regulating
growth cone dynamics and neurite outgrowth. It also
interacts with IRSp53 and regulates cell motility by
playing a role in the formation of membrane protrusions.
SPIN90 contains an N-terminal SH3 domain, a proline-rich
domain, and a C-terminal VCA (verprolin-homology and
cofilin-like acidic) domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 49.6 bits (119), Expect = 1e-07
Identities = 20/51 (39%), Positives = 26/51 (50%), Gaps = 3/51 (5%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND--RQGFVPAAYVK 200
ALYD+ P +S + + LL +N WW V N G+VPA YVK
Sbjct: 4 ALYDFKSAEPNTLSFSEGETFLLLERSNAHWWLV-TNHSGETGYVPANYVK 53
>gnl|CDD|222177 pfam13499, EF_hand_5, EF-hand domain pair.
Length = 60
Score = 49.3 bits (118), Expect = 2e-07
Identities = 19/63 (30%), Positives = 33/63 (52%), Gaps = 3/63 (4%)
Query: 1501 KHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNRDGHVSLQEYM 1560
K DKD G ++ E + L+ALG L + + + EA + +D + DG +S +E++
Sbjct: 1 KLLDKDGDGYIDVEELRKLLKALGLKLT---DEEVEELIEADFNEIDKDGDGRISFEEFL 57
Query: 1561 AFM 1563
M
Sbjct: 58 EAM 60
>gnl|CDD|212716 cd11782, SH3_Sorbs_2, Second Src Homology 3 domain of Sorbin and
SH3 domain containing (Sorbs) proteins and similar
domains. This family, also called the vinexin family,
is composed predominantly of adaptor proteins containing
one sorbin homology (SoHo) and three SH3 domains.
Members include the second SH3 domains of Sorbs1 (or
ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and
similar domains. They are involved in the regulation of
cytoskeletal organization, cell adhesion, and growth
factor signaling. Members of this family bind multiple
partners including signaling molecules like c-Abl,
c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules
such as vinculin and afadin. They may have overlapping
functions. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 48.9 bits (117), Expect = 2e-07
Identities = 16/50 (32%), Positives = 30/50 (60%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
A Y++ + E+S +K DV+TL +++W++ + RQG P +YV+
Sbjct: 3 RAKYNFNADTGVELSFRKGDVITLTRRVDENWYEGRIGGRQGIFPVSYVQ 52
>gnl|CDD|212740 cd11806, SH3_PRMT2, Src homology 3 domain of Protein arginine
N-methyltransferase 2. PRMT2, also called HRMT1L1,
belongs to the arginine methyltransferase protein
family. It functions as a coactivator to both estrogen
receptor alpha (ER-alpha) and androgen receptor (AR),
presumably through arginine methylation. The ER-alpha
transcription factor is involved in cell proliferation,
differentiation, morphogenesis, and apoptosis, and is
also implicated in the development and progression of
breast cancer. PRMT2 and its variants are upregulated in
breast cancer cells and may be involved in modulating
the ER-alpha signaling pathway during formation of
breast cancer. PRMT2 also plays a role in regulating the
function of E2F transcription factors, which are
critical cell cycle regulators, by binding to the
retinoblastoma gene product (RB). It contains an
N-terminal SH3 domain and an AdoMet binding domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 48.9 bits (117), Expect = 2e-07
Identities = 14/50 (28%), Positives = 27/50 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
+A+ D+ ++S + D L +L + DWW E N G++PA+++
Sbjct: 2 YVAIADFVATDDSQLSFESGDKLLVLRKPSVDWWWAEHNGCCGYIPASHL 51
>gnl|CDD|212908 cd11975, SH3_ARHGEF9, Src homology 3 domain of the Rho guanine
nucleotide exchange factor ARHGEF9. ARHGEF9, also
called PEM2 or collybistin, selectively activates Cdc42
by exchanging bound GDP for free GTP. It is highly
expressed in the brain and it interacts with gephyrin, a
postsynaptic protein associated with GABA and glycine
receptors. Mutations in the ARHGEF9 gene cause X-linked
mental retardation with associated features like
seizures, hyper-anxiety, aggressive behavior, and
sensory hyperarousal. ARHGEF9 contains a SH3 domain
followed by RhoGEF (also called Dbl-homologous or DH)
and Pleckstrin Homology (PH) domains. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 62
Score = 48.9 bits (116), Expect = 2e-07
Identities = 18/49 (36%), Positives = 37/49 (75%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
A++D+ + RE++ K DV+ +L+++NKDWW +++D +G+ PA++V+
Sbjct: 9 AVWDHVTMANRELAFKAGDVIKVLDASNKDWWWGQIDDEEGWFPASFVR 57
>gnl|CDD|212942 cd12009, SH3_Blk, Src homology 3 domain of Blk Protein Tyrosine
Kinase. Blk is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
It is expressed specifically in B-cells and is involved
in pre-BCR (B-cell receptor) signaling. Src kinases
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 47.9 bits (114), Expect = 5e-07
Identities = 19/53 (35%), Positives = 33/53 (62%), Gaps = 3/53 (5%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYV 199
CVIA YD+ + R++ +KK + L +L S+ +WW K ++G++P+ YV
Sbjct: 1 CVIAQYDFVPSNERDLQLKKGEKLQVLKSDG-EWWLAKSLTTGKEGYIPSNYV 52
>gnl|CDD|212918 cd11985, SH3_Stac2_C, C-terminal Src homology 3 domain of SH3 and
cysteine-rich domain-containing protein 2 (Stac2). Stac
proteins are putative adaptor proteins that contain a
cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac2 contains
a single SH3 domain at the C-terminus unlike Stac1 and
Stac3, which contain two C-terminal SH3 domains. Stac1
and Stac2 have been found to be expressed differently in
mature dorsal root ganglia (DRG) neurons. Stac1 is
mainly expressed in peptidergic neurons while Stac2 is
found in a subset of nonpeptidergic and all trkB+
neurons. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 47.2 bits (112), Expect = 6e-07
Identities = 16/53 (30%), Positives = 33/53 (62%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+ALY + + ++ ++ D + +++ +N+DWWK + DR GF PA +V++
Sbjct: 1 SYVALYKFLPQENNDLPLQPGDRVMVVDDSNEDWWKGKSGDRVGFFPANFVQR 53
>gnl|CDD|212792 cd11858, SH3_Myosin-I_fungi, Src homology 3 domain of Type I fungal
Myosins. Type I myosins (myosin-I) are actin-dependent
motors in endocytic actin structures and actin patches.
They play roles in membrane traffic in endocytic and
secretory pathways, cell motility, and mechanosensing.
Saccharomyces cerevisiae has two myosins-I, Myo3 and
Myo5, which are involved in endocytosis and the
polarization of the actin cytoskeleton. Myosin-I
contains an N-terminal actin-activated ATPase, a
phospholipid-binding TH1 (tail homology 1) domain, and a
C-terminal extension which includes an F-actin-binding
TH2 domain, an SH3 domain, and an acidic peptide that
participates in activating the Arp2/3complex. The SH3
domain of myosin-I is required for myosin-I-induced
actin polymerization. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 47.4 bits (113), Expect = 6e-07
Identities = 18/51 (35%), Positives = 32/51 (62%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND--RQGFVPAAYVK 200
ALYD+ E+S+KK D++ ++ + WW + D ++G+VPAAY++
Sbjct: 4 ALYDFAGSVANELSLKKDDIVYIVQKEDNGWWLAKKLDESKEGWVPAAYLE 54
>gnl|CDD|212760 cd11826, SH3_Abi, Src homology 3 domain of Abl Interactor proteins.
Abl interactor (Abi) proteins are adaptor proteins
serving as binding partners and substrates of Abl
tyrosine kinases. They are involved in regulating actin
cytoskeletal reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. They localize to sites of actin
polymerization in epithelial adherens junction and
immune synapses, as well as to the leading edge of
lamellipodia. Vertebrates contain two Abi proteins, Abi1
and Abi2. Abi1 displays a wide expression pattern while
Abi2 is highly expressed in the eye and brain. Abi
proteins contain a homeobox homology domain, a
proline-rich region, and a SH3 domain. The SH3 domain of
Abi binds to a PxxP motif in Abl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 46.9 bits (112), Expect = 7e-07
Identities = 17/50 (34%), Positives = 28/50 (56%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V+ALYDYT E+S ++ D++ + N+ W++ +N G P YV
Sbjct: 2 VVALYDYTADKDDELSFQEGDIIYVTKKNDDGWYEGVLNGVTGLFPGNYV 51
>gnl|CDD|212888 cd11955, SH3_srGAP1-3, Src homology 3 domain of Slit-Robo GTPase
Activating Proteins 1, 2, and 3. srGAP1, also called
Rho GTPase-Activating Protein 13 (ARHGAP13), is a Cdc42-
and RhoA-specific GAP and is expressed later in the
development of central nervous system tissues. srGAP2 is
expressed in zones of neuronal differentiation. It plays
a role in the regeneration of neurons and axons. srGAP3,
also called MEGAP (MEntal disorder associated
GTPase-Activating Protein), is a Rho GAP with activity
towards Rac1 and Cdc42. It impacts cell migration by
regulating actin and microtubule cytoskeletal dynamics.
The association between srGAP3 haploinsufficiency and
mental retardation is under debate. srGAPs are Rho GAPs
that interact with Robo1, the transmembrane receptor of
Slit proteins. Slit proteins are secreted proteins that
control axon guidance and the migration of neurons and
leukocytes. srGAPs contain an N-terminal F-BAR domain, a
Rho GAP domain, and a C-terminal SH3 domain. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 46.5 bits (110), Expect = 1e-06
Identities = 20/49 (40%), Positives = 27/49 (55%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
IA +DY +S RE+S KK L L + + DWW+ N G VP Y+
Sbjct: 3 IAKFDYVGRSARELSFKKGASLLLYHRASDDWWEGRHNGIDGLVPHQYI 51
>gnl|CDD|219499 pfam07653, SH3_2, Variant SH3 domain. SH3 (Src homology 3) domains
are often indicative of a protein involved in signal
transduction related to cytoskeletal organisation. First
described in the Src cytoplasmic tyrosine kinase. The
structure is a partly opened beta barrel.
Length = 53
Score = 46.3 bits (111), Expect = 1e-06
Identities = 19/52 (36%), Positives = 34/52 (65%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
++DY P E+S+KK DV+ +L+ ++ WW+ E R+G VP++YV++
Sbjct: 2 GRVIFDYVATDPNELSLKKGDVVKVLDKDDNGWWEGERGGRRGLVPSSYVEE 53
>gnl|CDD|212861 cd11928, SH3_SH3RF3_1, First Src Homology 3 domain of SH3 domain
containing ring finger 3, an E3 ubiquitin-protein
ligase. SH3RF3 is also called POSH2 (Plenty of SH3s 2)
or SH3MD4 (SH3 multiple domains protein 4). It is a
scaffold protein with E3 ubiquitin-protein ligase
activity. It was identified in the screen for
interacting partners of p21-activated kinase 2 (PAK2).
It may play a role in regulating JNK mediated apoptosis
in certain conditions. It also interacts with GTP-loaded
Rac1. SH3RF3 is highly homologous to SH3RF1; it also
contains an N-terminal RING finger domain and four SH3
domains. This model represents the first SH3 domain,
located at the N-terminal half, of SH3RF3. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 46.5 bits (110), Expect = 1e-06
Identities = 18/52 (34%), Positives = 31/52 (59%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
C ALY Y K P ++ K D++ L +++W+ E+N GF+PA+Y++
Sbjct: 2 CGKALYSYEGKEPGDLKFNKGDIIILRRKVDENWYHGELNGCHGFLPASYIQ 53
>gnl|CDD|213018 cd12142, SH3_D21-like, Src Homology 3 domain of SH3
domain-containing protein 21 (SH3D21) and similar
proteins. N-terminal SH3 domain of the uncharacterized
protein SH3 domain-containing protein 21, and similar
uncharacterized domains, it belongs to the CD2AP-like_3
subfamily of proteins. The CD2AP-like_3 subfamily is
composed of the third SH3 domain (SH3C) of CD2AP, CIN85
(Cbl-interacting protein of 85 kDa), and similar
domains. CD2AP and CIN85 are adaptor proteins that bind
to protein partners and assemble complexes that have
been implicated in T cell activation, kidney function,
and apoptosis of neuronal cells. They also associate
with endocytic proteins, actin cytoskeleton components,
and other adaptor proteins involved in receptor tyrosine
kinase (RTK) signaling. CD2AP and the main isoform of
CIN85 contain three SH3 domains, a proline-rich region,
and a C-terminal coiled-coil domain. All of these
domains enable CD2AP and CIN85 to bind various protein
partners and assemble complexes that have been
implicated in many different functions. SH3C of both
proteins have been shown to bind to ubiquitin. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 46.3 bits (110), Expect = 1e-06
Identities = 19/49 (38%), Positives = 33/49 (67%), Gaps = 2/49 (4%)
Query: 153 LYDYTEKSPREVSMKKSDVLTLLNSNNKD--WWKVEVNDRQGFVPAAYV 199
L+DY +P E+++KK DV+ +++ +D WW+ E+N R+GF P +V
Sbjct: 5 LFDYNPVAPDELALKKGDVIEVISKETEDEGWWEGELNGRRGFFPDNFV 53
>gnl|CDD|212764 cd11830, SH3_VAV_2, C-terminal (or second) Src homology 3 domain of
VAV proteins. VAV proteins function both as cytoplasmic
guanine nucleotide exchange factors (GEFs) for Rho
GTPases and scaffold proteins and they play important
roles in cell signaling by coupling cell surface
receptors to various effector functions. They play key
roles in processes that require cytoskeletal
reorganization including immune synapse formation,
phagocytosis, cell spreading, and platelet aggregation,
among others. Vertebrates have three VAV proteins (VAV1,
VAV2, and VAV3). VAV proteins contain several domains
that enable their function: N-terminal calponin homology
(CH), acidic, RhoGEF (also called Dbl-homologous or DH),
Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two
SH3 domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 46.5 bits (110), Expect = 2e-06
Identities = 19/52 (36%), Positives = 33/52 (63%), Gaps = 1/52 (1%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNS-NNKDWWKVEVNDRQGFVPAAYVKK 201
A YD+ + RE+S+K+ DV+ + N + WW+ E+N R G+ P+ YV++
Sbjct: 3 KARYDFCARDMRELSLKEGDVVKIYNKKGQQGWWRGEINGRIGWFPSTYVEE 54
>gnl|CDD|212911 cd11978, SH3_VAV3_2, C-terminal (or second) Src homology 3 domain
of VAV3 protein. VAV3 is ubiquitously expressed and
functions as a phosphorylation-dependent guanine
nucleotide exchange factor (GEF) for RhoA, RhoG, and
Rac1. It has been implicated to function in the
hematopoietic, bone, cerebellar, and cardiovascular
systems. VAV3 is essential in axon guidance in neurons
that control blood pressure and respiration. It is
overexpressed in prostate cancer cells and it plays a
role in regulating androgen receptor transcriptional
activity. VAV proteins contain several domains that
enable their function: N-terminal calponin homology
(CH), acidic, RhoGEF (also called Dbl-homologous or DH),
Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two
SH3 domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 46.2 bits (109), Expect = 2e-06
Identities = 20/52 (38%), Positives = 32/52 (61%), Gaps = 1/52 (1%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTL-LNSNNKDWWKVEVNDRQGFVPAAYVKK 201
IA YD+ + RE+S+ K DV+ + + WW+ EVN R G+ P+ YV++
Sbjct: 4 IARYDFCARDMRELSLLKGDVVKIYTKMSTNGWWRGEVNGRVGWFPSTYVEE 55
>gnl|CDD|212757 cd11823, SH3_Nostrin, Src homology 3 domain of Nitric Oxide
Synthase TRaffic INducer. Nostrin is expressed in
endothelial and epithelial cells and is involved in the
regulation, trafficking and targeting of endothelial NOS
(eNOS). It facilitates the endocytosis of eNOS by
coordinating the functions of dynamin and the
Wiskott-Aldrich syndrome protein (WASP). Increased
expression of Nostrin may be correlated to preeclampsia.
Nostrin contains an N-terminal F-BAR domain and a
C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 45.8 bits (109), Expect = 2e-06
Identities = 17/48 (35%), Positives = 27/48 (56%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
ALY YT E+S++ D++ + + WW E+N ++G PA YV
Sbjct: 4 ALYSYTANREDELSLQPGDIIEVHEKQDDGWWLGELNGKKGIFPATYV 51
>gnl|CDD|213017 cd12141, SH3_DNMBP_C2, Second C-terminal Src homology 3 domain of
Dynamin Binding Protein, also called Tuba, and similar
domains. DNMBP or Tuba is a cdc42-specific guanine
nucleotide exchange factor (GEF) that contains four
N-terminal SH3 domains, a central RhoGEF [or Dbl
homology (DH)] domain followed by a Bin/Amphiphysin/Rvs
(BAR) domain, and two C-terminal SH3 domains. It
provides a functional link between dynamin, Rho GTPase
signaling, and actin dynamics. It plays an important
role in regulating cell junction configuration. The
C-terminal SH3 domains of DNMBP bind to N-WASP and
Ena/VASP proteins, which are key regulatory proteins of
the actin cytoskeleton. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 46.0 bits (109), Expect = 2e-06
Identities = 18/54 (33%), Positives = 34/54 (62%), Gaps = 4/54 (7%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLN----SNNKDWWKVEVNDRQGFVPAAYVKK 201
A+Y + +SP E+S+ + + +L + NK+WW E N ++G+VP+ Y++K
Sbjct: 4 AVYTFKARSPNELSVSANQRVRILEFSDLTGNKEWWLAEANGQKGYVPSNYIRK 57
>gnl|CDD|212884 cd11951, SH3_GRAP_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein. GRAP is a GRB-2 like
adaptor protein that is highly expressed in lymphoid
tissues. It acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. It
has been identified as a regulator of TGFbeta signaling
in diabetic kidney tubules and may have a role in the
pathogenesis of the disease. GRAP contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domains (SH3c) of the related
proteins, GRB2 and GRAP2, have been shown to bind to
classical PxxP motif ligands, as well as to
non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 45.9 bits (109), Expect = 2e-06
Identities = 16/50 (32%), Positives = 32/50 (64%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V A YD++ + P ++S ++ D++ +L+ + +WW+ ++ R GF P YV
Sbjct: 2 VQAQYDFSAEDPSQLSFRRGDIIEVLDCPDPNWWRGRISGRVGFFPRNYV 51
>gnl|CDD|212811 cd11878, SH3_Bem1p_1, First Src Homology 3 domain of Bud emergence
protein 1 and similar domains. Members of this
subfamily bear similarity to Saccharomyces cerevisiae
Bem1p, containing two Src Homology 3 (SH3) domains at
the N-terminus, a central PX domain, and a C-terminal
PB1 domain. Bem1p is a scaffolding protein that is
critical for proper Cdc42p activation during bud
formation in yeast. During budding and mating, Bem1p
migrates to the plasma membrane where it can serve as an
adaptor for Cdc42p and some other proteins. Bem1p also
functions as an effector of the G1 cyclin Cln3p and the
cyclin-dependent kinase Cdc28p in promoting vacuolar
fusion. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 54
Score = 45.4 bits (108), Expect = 3e-06
Identities = 18/53 (33%), Positives = 30/53 (56%), Gaps = 4/53 (7%)
Query: 150 VI-ALYDYTEKSPREVSMKKSDVLTLLN-SNNKDWWKVE--VNDRQGFVPAAY 198
VI ALYDY ++P E+S K D ++ + +W++ V ++G VP +Y
Sbjct: 1 VIRALYDYRAQTPGELSFSKGDFFHVIGEEDQGEWYEATNPVTGKRGLVPKSY 53
>gnl|CDD|212778 cd11844, SH3_CAS, Src homology 3 domain of CAS (Crk-Associated
Substrate) scaffolding proteins. CAS proteins function
as molecular scaffolds to regulate protein complexes
that are involved in many cellular processes including
migration, chemotaxis, apoptosis, differentiation, and
progenitor cell function. They mediate the signaling of
integrins at focal adhesions where they localize, and
thus, regulate cell invasion and survival.
Over-expression of these proteins is implicated in poor
prognosis, increased metastasis, and resistance to
chemotherapeutics in many cancers such as breast, lung,
melanoma, and glioblastoma. CAS proteins have also been
linked to the pathogenesis of inflammatory disorders,
Alzheimer's, Parkinson's, and developmental defects.
They share a common domain structure that includes an
N-terminal SH3 domain, an unstructured substrate domain
that contains many YxxP motifs, a serine-rich four-helix
bundle, and a FAT-like C-terminal domain. Vertebrates
contain four CAS proteins: BCAR1 (or p130Cas), NEDD9 (or
HEF1), EFS (or SIN), and CASS4 (or HEPL). The SH3 domain
of CAS proteins binds to diverse partners including FAK,
FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 45.4 bits (108), Expect = 3e-06
Identities = 19/52 (36%), Positives = 28/52 (53%), Gaps = 3/52 (5%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD---WWKVEVNDRQGFVPAAYVK 200
ALYD +SP E++ ++ D+LT+L N WW + RQG P +K
Sbjct: 4 ALYDNVAESPDELAFRRGDILTVLEQNTAGLEGWWLCSLRGRQGIAPGNRLK 55
>gnl|CDD|212715 cd11781, SH3_Sorbs_1, First Src Homology 3 domain of Sorbin and SH3
domain containing (Sorbs) proteins and similar domains.
This family, also called the vinexin family, is composed
predominantly of adaptor proteins containing one sorbin
homology (SoHo) and three SH3 domains. Members include
the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or
ArgBP2), Vinexin (or Sorbs3), and similar domains. They
are involved in the regulation of cytoskeletal
organization, cell adhesion, and growth factor
signaling. Members of this family bind multiple partners
including signaling molecules like c-Abl, c-Arg, Sos,
and c-Cbl, as well as cytoskeletal molecules such as
vinculin and afadin. They may have overlapping
functions. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 45.0 bits (107), Expect = 4e-06
Identities = 19/49 (38%), Positives = 32/49 (65%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
ALY + +S +E+S+KK D++ + +K+W++ E N R G PA+YV
Sbjct: 3 RALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYEGEHNGRVGIFPASYV 51
>gnl|CDD|212853 cd11920, SH3_Sorbs2_1, First Src Homology 3 domain of Sorbin and
SH3 domain containing 2 (Sorbs2), also called
Arg-binding protein 2 (ArgBP2). Sorbs2 or ArgBP2 is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. It regulates actin-dependent
processes including cell adhesion, morphology, and
migration. It is expressed in many tissues and is
abundant in the heart. Like vinexin, it is found in
focal adhesion where it interacts with vinculin and
afadin. It also localizes in epithelial cell stress
fibers and in cardiac muscle cell Z-discs. Sorbs2 has
been implicated to play roles in the signaling of c-Arg,
Akt, and Pyk2. Other interaction partners of Sorbs2
include c-Abl, flotillin, spectrin, dynamin 1/2,
synaptojanin, PTP-PEST, among others. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 45.4 bits (107), Expect = 4e-06
Identities = 17/51 (33%), Positives = 34/51 (66%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
A+YD+ ++ +E+S KK D + +L +++W++ E + R G P +YV+K+
Sbjct: 5 AVYDFKAQTSKELSFKKGDTVYILRKIDQNWYEGEHHGRVGIFPISYVEKL 55
>gnl|CDD|212707 cd11773, SH3_Sla1p_1, First Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 45.1 bits (107), Expect = 4e-06
Identities = 20/54 (37%), Positives = 32/54 (59%), Gaps = 7/54 (12%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-------RQGFVPAAY 198
ALYDY ++ E+++++ D+L LL ++ DWWKV++ G VPA Y
Sbjct: 4 ALYDYEPQTEDELTIQEDDILYLLEKSDDDWWKVKLKVNSSDDDEPVGLVPATY 57
>gnl|CDD|212874 cd11941, SH3_ARHGEF37_C2, Second C-terminal Src homology 3 domain
of Rho guanine nucleotide exchange factor 37. ARHGEF37
contains a RhoGEF [or Dbl homology (DH)] domain followed
by a Bin/Amphiphysin/Rvs (BAR) domain, and two
C-terminal SH3 domains. Its specific function is
unknown. Its domain architecture is similar to the
C-terminal half of DNMBP or Tuba, a cdc42-specific GEF
that provides a functional link between dynamin, Rho
GTPase signaling, and actin dynamics, and plays an
important role in regulating cell junction
configuration. GEFs activate small GTPases by exchanging
bound GDP for free GTP. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 45.3 bits (107), Expect = 4e-06
Identities = 20/54 (37%), Positives = 36/54 (66%), Gaps = 4/54 (7%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNK----DWWKVEVNDRQGFVPAAYV 199
V+A Y +T +S EVS++ +T+L ++K +W VEVN ++G+VP++Y+
Sbjct: 2 VVAAYPFTARSKHEVSLQAGQPVTVLEPHDKKGSPEWSLVEVNGQRGYVPSSYL 55
>gnl|CDD|212886 cd11953, SH3_ASPP2, Src Homology 3 (SH3) domain of Apoptosis
Stimulating of p53 protein 2. ASPP2 is the full length
form of the previously-identified tumor supressor,
p53-binding protein 2 (p53BP2). ASPP2 activates the
apoptotic function of the p53 family of tumor
suppressors (p53, p63, and p73). It plays a central role
in regulating apoptosis and cell growth; ASPP2-deficient
mice show postnatal death. Downregulated expression of
ASPP2 is frequently found in breast tumors, lung cancer,
and diffuse large B-cell lymphoma where it is correlated
with a poor clinical outcome. ASPP2 contains a
proline-rich region, four ankyrin (ANK) repeats, and an
SH3 domain at its C-terminal half. The SH3 domain and
the ANK repeats of ASPP2 contribute to the p53 binding
site; they bind to the DNA binding domain of p53. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 45.3 bits (107), Expect = 4e-06
Identities = 20/49 (40%), Positives = 32/49 (65%), Gaps = 3/49 (6%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKD---WWKVEVNDRQGFVP 195
V AL+DY +S E+S K+ D +T+L ++D WW +ND++G+VP
Sbjct: 3 VYALWDYEGESDDELSFKEGDCMTILRREDEDETEWWWARLNDKEGYVP 51
>gnl|CDD|212708 cd11774, SH3_Sla1p_2, Second Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 44.8 bits (106), Expect = 5e-06
Identities = 20/51 (39%), Positives = 30/51 (58%), Gaps = 1/51 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQ-GFVPAAYV 199
ALYDY +++ E+S + D L + + ++ DW V N Q GFVPA Y+
Sbjct: 2 AKALYDYDKQTEEELSFNEGDTLDVYDDSDSDWILVGFNGTQFGFVPANYI 52
>gnl|CDD|212775 cd11841, SH3_SH3YL1_like, Src homology 3 domain of SH3 domain
containing Ysc84-like 1 (SH3YL1) protein. SH3YL1
localizes to the plasma membrane and is required for
dorsal ruffle formation. It binds phosphoinositides
(PIs) with high affinity through its N-terminal SYLF
domain (also called DUF500). In addition, SH3YL1
contains a C-terminal SH3 domain which has been reported
to bind to N-WASP, dynamin 2, and SHIP2 (a PI
5-phosphatase). SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 45.1 bits (107), Expect = 5e-06
Identities = 18/53 (33%), Positives = 28/53 (52%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNK--DWWKVEVNDRQGFVPAAYVK 200
V ALY + + P ++S + D +T+L + DWW+ + R G PA YV
Sbjct: 2 VTALYSFEGQQPCDLSFQAGDRITVLTRTDSQFDWWEGRLRGRVGIFPANYVS 54
>gnl|CDD|212698 cd11764, SH3_Eps8, Src Homology 3 domain of Epidermal growth factor
receptor kinase substrate 8 and similar proteins. This
group is composed of Eps8 and Eps8-like proteins
including Eps8-like 1-3, among others. These proteins
contain N-terminal Phosphotyrosine-binding (PTB),
central SH3, and C-terminal effector domains. Eps8 binds
either Abi1 (also called E3b1) or Rab5 GTPase activating
protein RN-tre through its SH3 domain. With Abi1 and
Sos1, it becomes part of a trimeric complex that is
required to activate Rac. Together with RN-tre, it
inhibits the internalization of EGFR. The SH3 domains of
Eps8 and similar proteins recognize peptides containing
a PxxDY motif, instead of the classical PxxP motif. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 44.6 bits (106), Expect = 6e-06
Identities = 17/47 (36%), Positives = 31/47 (65%), Gaps = 2/47 (4%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVP 195
V LYD+T ++ +E+S+ K + L +L+ +++ WWKV + G+VP
Sbjct: 2 VRVLYDFTARNSKELSVLKGEYLEVLD-DSRQWWKVRNSRGQVGYVP 47
>gnl|CDD|212936 cd12003, SH3_EFS, Src homology 3 domain of CAS (Crk-Associated
Substrate) scaffolding protein family member, Embryonal
Fyn-associated Substrate. EFS is also called HEFS,
CASS3 (Cas scaffolding protein family member 3) or SIN
(Src-interacting protein). It was identified based on
interactions with the Src kinases, Fyn and Yes. It plays
a role in thymocyte development and acts as a negative
regulator of T cell proliferation. CAS proteins function
as molecular scaffolds to regulate protein complexes
that are involved in many cellular processes. They share
a common domain structure that includes an N-terminal
SH3 domain, an unstructured substrate domain that
contains many YxxP motifs, a serine-rich four-helix
bundle, and a FAT-like C-terminal domain. The SH3 domain
of CAS proteins binds to diverse partners including FAK,
FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 62
Score = 44.9 bits (106), Expect = 6e-06
Identities = 18/57 (31%), Positives = 30/57 (52%), Gaps = 3/57 (5%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD---WWKVEVNDRQGFVPAAYVKKMEAG 205
ALYD +SP E+S ++ DVL +L + WW ++ +QG PA ++ +
Sbjct: 5 ALYDNAAESPEELSFRRGDVLMVLKREHGSLPGWWLCSLHGQQGIAPANRLRLLPTA 61
>gnl|CDD|212882 cd11949, SH3_GRB2_C, C-terminal Src homology 3 domain of Growth
factor receptor-bound protein 2. GRB2 is a critical
signaling molecule that regulates the Ras pathway by
linking tyrosine kinases to the Ras guanine nucleotide
releasing protein Sos (son of sevenless), which converts
Ras to the active GTP-bound state. It is ubiquitously
expressed in all tissues throughout development and is
important in cell cycle progression, motility,
morphogenesis, and angiogenesis. In lymphocytes, GRB2 is
associated with antigen receptor signaling components.
GRB2 contains an N-terminal SH3 domain, a central SH2
domain, and a C-terminal SH3 domain. The C-terminal SH3
domain of GRB2 binds to Gab2 (Grb2-associated binder 2)
through epitopes containing RxxK motifs, as well as to
the proline-rich C-terminus of FGRF2. SH3 domains are
protein interaction domains that typically bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 44.4 bits (105), Expect = 7e-06
Identities = 13/51 (25%), Positives = 29/51 (56%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V AL+D+ + E+ ++ D + ++++++ +WWK + + G P YV
Sbjct: 2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWKGACHGQTGMFPRNYVT 52
>gnl|CDD|212751 cd11817, SH3_Eve1_4, Fourth Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 50
Score = 44.4 bits (105), Expect = 7e-06
Identities = 13/49 (26%), Positives = 29/49 (59%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAY 198
+ALYD+T ++ ++S ++ D + + + +W + +N R+G P A+
Sbjct: 2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAEWSRGRLNGREGIFPRAF 50
>gnl|CDD|212738 cd11804, SH3_GRB2_like_N, N-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
N-terminal SH3 domain of GRB2 binds to Sos and
Sos-derived proline-rich peptides. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 44.3 bits (105), Expect = 7e-06
Identities = 15/50 (30%), Positives = 32/50 (64%), Gaps = 1/50 (2%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLN-SNNKDWWKVEVNDRQGFVPAAYV 199
+A +D+ + E+S KK +L +LN ++ +W+K E++ ++G +P Y+
Sbjct: 3 VAKHDFKATAEDELSFKKGSILKVLNMEDDPNWYKAELDGKEGLIPKNYI 52
>gnl|CDD|212906 cd11973, SH3_ASEF, Src homology 3 domain of APC-Stimulated guanine
nucleotide Exchange Factor. ASEF, also called ARHGEF4,
exists in an autoinhibited form and is activated upon
binding of the tumor suppressor APC (adenomatous
polyposis coli). GEFs activate small GTPases by
exchanging bound GDP for free GTP. ASEF can activate
Rac1 or Cdc42. Truncated ASEF, which is found in
colorectal cancers, is constitutively active and has
been shown to promote angiogenesis and cancer cell
migration. ASEF contains a SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains. In its autoinhibited form, the
SH3 domain of ASEF forms an extensive interface with the
DH and PH domains, blocking the Rac binding site. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 73
Score = 45.0 bits (106), Expect = 7e-06
Identities = 18/52 (34%), Positives = 33/52 (63%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
C AL+D+ +E+ K DV+ ++++ NK+WW V D +G+ PA++V+
Sbjct: 19 CAEALWDHVTMDDQELGFKAGDVIEVMDATNKEWWWGRVLDSEGWFPASFVR 70
>gnl|CDD|212979 cd12046, SH3_p67phox_C, C-terminal (or second) Src Homology 3
domain of the p67phox subunit of NADPH oxidase.
p67phox, also called Neutrophil cytosol factor 2
(NCF-2), is a cytosolic subunit of the phagocytic NADPH
oxidase complex (also called Nox2 or gp91phox) which
plays a crucial role in the cellular response to
bacterial infection. NADPH oxidase catalyzes the
transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p67phox plays a regulatory role and contains
N-terminal TPR, first SH3 (or N-terminal or central
SH3), PB1, and C-terminal SH3 domains. It binds, via its
C-terminal SH3 domain, to a proline-rich region of
p47phox and upon activation, this complex assembles with
flavocytochrome b558, the Nox2-p22phox heterodimer.
Concurrently, RacGTP translocates to the membrane and
interacts with the TPR domain of p67phox, which leads to
the activation of NADPH oxidase. The PB1 domain of
p67phox binds to its partner PB1 domain in p40phox, and
this facilitates the assembly of p47phox-p67phox at the
membrane. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 44.4 bits (105), Expect = 7e-06
Identities = 16/51 (31%), Positives = 31/51 (60%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V+AL+ Y P ++ +K DV+ +L+ N+DW + + + G P+A+V+
Sbjct: 2 VVALFSYEASQPEDLEFQKGDVILVLSKVNEDWLEGQCKGKIGIFPSAFVE 52
>gnl|CDD|212806 cd11873, SH3_CD2AP-like_1, First Src Homology 3 domain (SH3A) of
CD2-associated protein and similar proteins. This
subfamily is composed of the first SH3 domain (SH3A) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3A of both proteins bind to an atypical PXXXPR motif
at the C-terminus of Cbl and the cytoplasmic domain of
the cell adhesion protein CD2. CIN85 SH3A binds to
internal proline-rich motifs within the proline-rich
region; this intramolecular interaction serves as a
regulatory mechanism to keep CIN85 in a closed
conformation, preventing the recruitment of other
proteins. CIN85 SH3A has also been shown to bind
ubiquitin. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 44.2 bits (105), Expect = 8e-06
Identities = 16/53 (30%), Positives = 30/53 (56%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
VI +DY + P E+++K D++T + + WW+ +N ++G P +VK
Sbjct: 1 EVIVEFDYDAEEPDELTLKVGDIITNVKKMEEGWWEGTLNGKRGMFPDNFVKV 53
>gnl|CDD|212737 cd11803, SH3_Endophilin_A, Src homology 3 domain of Endophilin-A.
Endophilins play roles in synaptic vesicle formation,
virus budding, mitochondrial morphology maintenance,
receptor-mediated endocytosis inhibition, and endosomal
sorting. They are classified into two types, A and B.
Vertebrates contain three endophilin-A isoforms (A1, A2,
and A3). Endophilin-A proteins are enriched in the brain
and play multiple roles in receptor-mediated
endocytosis. They tubulate membranes and regulate
calcium influx into neurons to trigger the activation of
the endocytic machinery. They are also involved in the
sorting of plasma membrane proteins, actin filament
assembly, and the uncoating of clathrin-coated vesicles
for fusion with endosomes. Endophilins contain an
N-terminal N-BAR domain (BAR domain with an additional
N-terminal amphipathic helix), followed by a variable
region containing proline clusters, and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 44.2 bits (105), Expect = 9e-06
Identities = 19/51 (37%), Positives = 32/51 (62%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
C ALYD+ ++ E+ K+ D++TL N +++W++ VN + GF P YV
Sbjct: 2 CCRALYDFEPENEGELGFKEGDIITLTNQIDENWYEGMVNGQSGFFPVNYV 52
>gnl|CDD|212841 cd11908, SH3_ITK, Src Homology 3 domain of Interleukin-2-inducible
T-cell Kinase. ITK (also known as Tsk or Emt) is a
cytoplasmic (or nonreceptor) tyr kinase containing Src
homology protein interaction domains (SH3, SH2)
N-terminal to the catalytic tyr kinase domain. It also
contains an N-terminal pleckstrin homology (PH) domain,
which binds the products of PI3K and allows membrane
recruitment and activation, and the Tec homology (TH)
domain, which contains proline-rich and zinc-binding
regions. ITK is expressed in T-cells and mast cells, and
is important in their development and differentiation.
Of the three Tec kinases expressed in T-cells, ITK plays
the predominant role in T-cell receptor (TCR) signaling.
It is activated by phosphorylation upon TCR crosslinking
and is involved in the pathway resulting in
phospholipase C-gamma1 activation and actin
polymerization. It also plays a role in the downstream
signaling of the T-cell costimulatory receptor CD28, the
T-cell surface receptor CD2, and the chemokine receptor
CXCR4. In addition, ITK is crucial for the development
of T-helper(Th)2 effector responses. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 44.2 bits (104), Expect = 9e-06
Identities = 20/51 (39%), Positives = 36/51 (70%), Gaps = 1/51 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYV 199
VIALYDY P+E++++ ++ LL+S+ WW+V+ N +G+VP++Y+
Sbjct: 3 VIALYDYQTNDPQELALRYNEEYHLLDSSEIHWWRVQDKNGHEGYVPSSYL 53
>gnl|CDD|213006 cd12073, SH3_HS1, Src homology 3 domain of Hematopoietic lineage
cell-specific protein 1. HS1, also called HCLS1
(hematopoietic cell-specific Lyn substrate 1), is a
cortactin homolog expressed specifically in
hematopoietic cells. It is an actin regulatory protein
that binds the Arp2/3 complex and stabilizes branched
actin filaments. It is required for cell spreading and
signaling in lymphocytes. It regulates cytoskeletal
remodeling that controls lymphocyte trafficking, and it
also affects tissue invasion and infiltration of
leukemic B cells. Like cortactin, HS1 contains an
N-terminal acidic domain, several copies of a repeat
domain found in cortactin and HS1, a proline-rich
region, and a C-terminal SH3 domain. The N-terminal
region binds the Arp2/3 complex and F-actin, while the
C-terminal region acts as an adaptor or scaffold that
can connect varied proteins that bind the SH3 domain
within the actin network. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 44.1 bits (104), Expect = 9e-06
Identities = 17/52 (32%), Positives = 28/52 (53%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
C +ALYDY + E+S + +T + ++ WWK + +G PA YV+
Sbjct: 2 CAVALYDYQGEGDDEISFDPQETITDIEMVDEGWWKGTCHGHRGLFPANYVE 53
>gnl|CDD|212948 cd12015, SH3_Tks_1, First Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the first SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 43.9 bits (104), Expect = 9e-06
Identities = 18/51 (35%), Positives = 32/51 (62%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+ + DY ++ P E+S++ DV+ ++ N WW V + D QG+VPA Y++
Sbjct: 3 VVVADYKKQQPNEISLRAGDVVDVIEKNENGWWFVSLEDEQGWVPATYLEP 53
>gnl|CDD|212907 cd11974, SH3_ASEF2, Src homology 3 domain of APC-Stimulated guanine
nucleotide Exchange Factor 2. ASEF2, also called
Spermatogenesis-associated protein 13 (SPATA13), is a
GEF that localizes with actin at the leading edge of
cells and is important in cell migration and adhesion
dynamics. GEFs activate small GTPases by exchanging
bound GDP for free GTP. ASEF2 can activate both Rac 1
and Cdc42, but only Rac1 activation is necessary for
increased cell migration and adhesion turnover. Together
with APC (adenomatous polyposis coli) and Neurabin2, a
scaffold protein that binds F-actin, it is involved in
regulating HGF-induced cell migration. ASEF2 contains a
SH3 domain followed by RhoGEF (also called
Dbl-homologous or DH) and Pleckstrin Homology (PH)
domains. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 43.9 bits (103), Expect = 1e-05
Identities = 18/52 (34%), Positives = 32/52 (61%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL+D+ +E++ K DV+ +L ++NKDWW DR+ + PA++V+
Sbjct: 2 YAEALWDHVTMDDQELAFKAGDVIRVLEASNKDWWWGRNEDREAWFPASFVR 53
>gnl|CDD|212844 cd11911, SH3_CIP4-like, Src Homology 3 domain of Cdc42-Interacting
Protein 4. This subfamily is composed of
Cdc42-Interacting Protein 4 (CIP4), Formin Binding
Protein 17 (FBP17), FormiN Binding Protein 1-Like
(FNBP1L), and similar proteins. CIP4 and FNBP1L are
Cdc42 effectors that bind Wiskott-Aldrich syndrome
protein (WASP) and function in endocytosis. CIP4 and
FBP17 bind to the Fas ligand and may be implicated in
the inflammatory response. CIP4 may also play a role in
phagocytosis. It functions downstream of Cdc42 in
PDGF-dependent actin reorganization and cell migration,
and also regulates the activity of PDGFRbeta. It uses
Src as a substrate in regulating the invasiveness of
breast tumor cells. CIP4 may also play a role in the
pathogenesis of Huntington's disease. Members of this
subfamily typically contain an N-terminal F-BAR
(FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain, a
central Cdc42-binding HR1 domain, and a C-terminal SH3
domain. The SH3 domain of CIP4 associates with Gapex-5,
a Rab31 GEF. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 44.2 bits (105), Expect = 1e-05
Identities = 17/52 (32%), Positives = 32/52 (61%), Gaps = 2/52 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKD-WWKV-EVNDRQGFVPAAYVK 200
ALYD+ S +SM++ ++L +L + D W +V + N +G+VP +Y++
Sbjct: 3 TALYDFDGTSEGTLSMEEGEILLVLEEDGGDGWTRVRKNNGDEGYVPTSYIE 54
>gnl|CDD|212934 cd12001, SH3_BCAR1, Src homology 3 domain of the CAS
(Crk-Associated Substrate) scaffolding protein family
member, Breast Cancer Anti-estrogen Resistance 1.
BCAR1, also called p130cas or CASS1, is the founding
member of the CAS family of scaffolding proteins and was
originally identified through its ability to associate
with Crk. The name BCAR1 was designated because the
human gene was identified in a screen for genes that
promote resistance to tamoxifen. It is widely expressed
and its deletion is lethal in mice. It plays a role in
regulating cell motility, survival, proliferation,
transformation, cancer progression, and bacterial
pathogenesis. CAS proteins function as molecular
scaffolds to regulate protein complexes that are
involved in many cellular processes. They share a common
domain structure that includes an N-terminal SH3 domain,
an unstructured substrate domain that contains many YxxP
motifs, a serine-rich four-helix bundle, and a FAT-like
C-terminal domain. The SH3 domain of CAS proteins binds
to diverse partners including FAK, FRNK, Pyk2, PTP-PEST,
DOCK180, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 68
Score = 44.6 bits (105), Expect = 1e-05
Identities = 20/52 (38%), Positives = 31/52 (59%), Gaps = 3/52 (5%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNK---DWWKVEVNDRQGFVPAAYVK 200
ALYD +SP E+S +K D++T+L + + WW ++ RQG VP +K
Sbjct: 7 ALYDNVAESPDELSFRKGDIMTVLERDTQGLDGWWLCSLHGRQGIVPGNRLK 58
>gnl|CDD|212845 cd11912, SH3_Bzz1_1, First Src Homology 3 domain of Bzz1 and
similar domains. Bzz1 (or Bzz1p) is a
WASP/Las17-interacting protein involved in endocytosis
and trafficking to the vacuole. It physically interacts
with type I myosins and functions in the early steps of
endocytosis. Together with other proteins, it induces
membrane scission in yeast. Bzz1 contains an N-terminal
F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a
central coiled-coil, and two C-terminal SH3 domains.
This model represents the first C-terminal SH3 domain.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 44.1 bits (105), Expect = 1e-05
Identities = 18/54 (33%), Positives = 27/54 (50%), Gaps = 8/54 (14%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD----WWKVEVND-RQGFVPAAYVK 200
LYDYT EVS+ + + +T+L D W KV +G VP +Y++
Sbjct: 4 VLYDYTASGDDEVSISEGEEVTVL---EPDDGSGWTKVRNGSGEEGLVPTSYIE 54
>gnl|CDD|212935 cd12002, SH3_NEDD9, Src homology 3 domain of CAS (Crk-Associated
Substrate) scaffolding protein family member, Neural
precursor cell Expressed, Developmentally Down-regulated
9. NEDD9 is also called human enhancer of filamentation
1 (HEF1) or CAS-L (Crk-associated substrate in
lymphocyte). It was first described as a gene
predominantly expressed in early embryonic brain, and
was also isolated from a screen of human proteins that
regulate filamentous budding in yeast, and as a tyrosine
phosphorylated protein in lymphocytes. It promotes
metastasis in different solid tumors. NEDD9 localizes in
focal adhesions and associates with FAK and Abl kinase.
It also interacts with SMAD3 and the proteasomal
machinery which allows its rapid turnover; these
interactions are not shared by other CAS proteins. CAS
proteins function as molecular scaffolds to regulate
protein complexes that are involved in many cellular
processes. They share a common domain structure that
includes an N-terminal SH3 domain, an unstructured
substrate domain that contains many YxxP motifs, a
serine-rich four-helix bundle, and a FAT-like C-terminal
domain. The SH3 domain of CAS proteins binds to diverse
partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180,
among others. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 43.8 bits (103), Expect = 1e-05
Identities = 17/52 (32%), Positives = 28/52 (53%), Gaps = 3/52 (5%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNN---KDWWKVEVNDRQGFVPAAYVK 200
ALYD + E++ +K D+LT++ N + WW ++ RQG P +K
Sbjct: 4 ALYDNVPECAEELAFRKGDILTVIEQNTGGLEGWWLCSLHGRQGIAPGNRLK 55
>gnl|CDD|212808 cd11875, SH3_CD2AP-like_3, Third Src Homology 3 domain (SH3C) of
CD2-associated protein and similar proteins. This
subfamily is composed of the third SH3 domain (SH3C) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3C of both proteins have been shown to bind to
ubiquitin. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 43.9 bits (104), Expect = 1e-05
Identities = 16/51 (31%), Positives = 35/51 (68%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD--WWKVEVNDRQGFVPAAYVK 200
L+DY ++ E+++++ D++T+L+ + +D WWK E+N ++G P +V+
Sbjct: 4 VLFDYEAENEDELTLREGDIVTILSKDCEDKGWWKGELNGKRGVFPDNFVE 54
>gnl|CDD|212883 cd11950, SH3_GRAP2_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also has roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domain of GRAP2 binds to
different motifs found in substrate peptides including
the typical PxxP motif in hematopoietic progenitor
kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and
the RxxxxK motif in phosphatase-like protein HD-PTP. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 43.7 bits (103), Expect = 1e-05
Identities = 19/51 (37%), Positives = 28/51 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V ALYD+ E+ DV+ +L+S+N WWK ++ + G PA YV
Sbjct: 2 VRALYDFEALEDDELGFNSGDVIEVLDSSNPSWWKGRLHGKLGLFPANYVA 52
>gnl|CDD|212839 cd11906, SH3_BTK, Src Homology 3 domain of Bruton's tyrosine
kinase. BTK is a cytoplasmic (or nonreceptor) tyr
kinase containing Src homology protein interaction
domains (SH3, SH2) N-terminal to the catalytic tyr
kinase domain. It also contains an N-terminal pleckstrin
homology (PH) domain, which binds the products of PI3K
and allows membrane recruitment and activation, and the
Tec homology (TH) domain with proline-rich and
zinc-binding regions. Btk is expressed in B-cells, and a
variety of myeloid cells including mast cells,
platelets, neutrophils, and dendrictic cells. It
interacts with a variety of partners, from cytosolic
proteins to nuclear transcription factors, suggesting a
diversity of functions. Stimulation of a diverse array
of cell surface receptors, including antigen engagement
of the B-cell receptor (BCR), leads to PH-mediated
membrane translocation of Btk and subsequent
phosphorylation by Src kinase and activation. Btk plays
an important role in the life cycle of B-cells including
their development, differentiation, proliferation,
survival, and apoptosis. Mutations in Btk cause the
primary immunodeficiency disease, X-linked
agammaglobulinaemia (XLA) in humans. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 43.7 bits (103), Expect = 1e-05
Identities = 18/51 (35%), Positives = 34/51 (66%), Gaps = 1/51 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV-EVNDRQGFVPAAYV 199
V+ALYDYT + +++ ++K + +L +N WW+ + N R+G++P+ YV
Sbjct: 3 VVALYDYTPMNAQDLQLRKGEEYVILEESNLPWWRARDKNGREGYIPSNYV 53
>gnl|CDD|212860 cd11927, SH3_SH3RF1_1, First Src Homology 3 domain of SH3 domain
containing ring finger protein 1, an E3
ubiquitin-protein ligase. SH3RF1 is also called POSH
(Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein
2). It is a scaffold protein that acts as an E3
ubiquitin-protein ligase. It plays a role in calcium
homeostasis through the control of the ubiquitin domain
protein Herp. It may also have a role in regulating
death receptor mediated and JNK mediated apoptosis.
SH3RF1 also enhances the ubiquitination of ROMK1
potassium channel resulting in its increased
endocytosis. It contains an N-terminal RING finger
domain and four SH3 domains. This model represents the
first SH3 domain, located at the N-terminal half, of
SH3RF1. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 43.4 bits (102), Expect = 2e-05
Identities = 18/52 (34%), Positives = 29/52 (55%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
C ALY+Y K P ++ K D++ L +++W+ EVN GF P +V+
Sbjct: 2 CAKALYNYEGKEPGDLKFSKGDIIILRRQVDENWYHGEVNGIHGFFPTNFVQ 53
>gnl|CDD|212885 cd11952, SH3_iASPP, Src Homology 3 (SH3) domain of Inhibitor of
ASPP protein (iASPP). iASPP, also called
RelA-associated inhibitor (RAI), is an oncoprotein that
inhibits the apoptotic transactivation potential of p53.
It is upregulated in human breast cancers expressing
wild-type p53, in acute leukemias regardless of the p53
mutation status, as well as in ovarian cancer where it
is associated with poor patient outcome and
chemoresistance. iASPP is also a binding partner and
negative regulator of p65RelA, which promotes cell
proliferation and inhibits apoptosis; p65RelA has the
opposite effect on cell growth compared to the p53
family. It contains a proline-rich region, four ankyrin
(ANK) repeats, and an SH3 domain at its C-terminal half.
The SH3 domain and the ANK repeats of iASPP contribute
to the p53 binding site; they bind to the DNA binding
domain of p53. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 43.4 bits (102), Expect = 2e-05
Identities = 20/51 (39%), Positives = 33/51 (64%), Gaps = 2/51 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNK--DWWKVEVNDRQGFVPAAY 198
V AL+DY+ + P E+S K+ D++T+L + + DWW + R+G+VP Y
Sbjct: 3 VYALWDYSAEFPDELSFKEGDMVTVLRKDGEGTDWWWASLCGREGYVPRNY 53
>gnl|CDD|212830 cd11897, SH3_SNX18, Src Homology 3 domain of Sorting nexin 18.
SNX18 is localized to peripheral endosomal structures,
and acts in a trafficking pathway that is
clathrin-independent but relies on AP-1 and PACS1. It
binds FIP5 and is required for apical lumen formation.
It may also play a role in axonal elongation. SNXs are
Phox homology (PX) domain containing proteins that are
involved in regulating membrane traffic and protein
sorting in the endosomal system. SNX18 also contains BAR
and SH3 domains. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 43.4 bits (102), Expect = 2e-05
Identities = 19/51 (37%), Positives = 34/51 (66%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR--QGFVPAAYVK 200
ALYD+ ++P E+S+++ +VL+L + + + W VN R +G PA+YV+
Sbjct: 4 ALYDFRSENPGEISLREHEVLSLCSEQDIEGWLEGVNSRGDRGLFPASYVE 54
>gnl|CDD|212697 cd11763, SH3_SNX9_like, Src Homology 3 domain of Sorting Nexin 9
and similar proteins. Sorting nexins (SNXs) are Phox
homology (PX) domain containing proteins that are
involved in regulating membrane traffic and protein
sorting in the endosomal system. SNXs differ from each
other in their lipid-binding specificity, subcellular
localization and specific function in the endocytic
pathway. This subfamily consists of SH3 domain
containing SNXs including SNX9, SNX18, SNX33, and
similar proteins. SNX9 is localized to plasma membrane
endocytic sites and acts primarily in clathrin-mediated
endocytosis, while SNX18 is localized to peripheral
endosomal structures, and acts in a trafficking pathway
that is clathrin-independent but relies on AP-1 and
PACS1. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 43.1 bits (102), Expect = 2e-05
Identities = 15/50 (30%), Positives = 26/50 (52%), Gaps = 2/50 (4%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD-WWK-VEVNDRQGFVPAAYV 199
ALYD+ + E+S++ +VLT+ + D W + G P++YV
Sbjct: 4 ALYDFDSQPSGELSLRAGEVLTITRQDVGDGWLEGRNSRGEVGLFPSSYV 53
>gnl|CDD|212933 cd12000, SH3_CASS4, Src homology 3 domain of CAS (Crk-Associated
Substrate) scaffolding protein family member 4. CASS4,
also called HEPL (HEF1-EFS-p130Cas-like), localizes to
focal adhesions and plays a role in regulating FAK
activity, focal adhesion integrity, and cell spreading.
It is most abundant in blood cells and lung tissue, and
is also found in high levels in leukemia and ovarian
cell lines. CAS proteins function as molecular scaffolds
to regulate protein complexes that are involved in many
cellular processes. They share a common domain structure
that includes an N-terminal SH3 domain, an unstructured
substrate domain that contains many YxxP motifs, a
serine-rich four-helix bundle, and a FAT-like C-terminal
domain. The SH3 domain of CAS proteins binds to diverse
partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180,
among others. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 42.6 bits (100), Expect = 3e-05
Identities = 18/48 (37%), Positives = 28/48 (58%), Gaps = 3/48 (6%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSN---NKDWWKVEVNDRQGFVPA 196
ALYD E++ ++ D+LT+L N ++ WWK ++ RQG PA
Sbjct: 5 ALYDNKADCSDELAFRRGDILTVLEQNVPGSEGWWKCLLHGRQGLAPA 52
>gnl|CDD|213009 cd12076, SH3_Tks4_2, Second Src homology 3 domain of Tyrosine
kinase substrate with four SH3 domains. Tks4, also
called SH3 and PX domain-containing protein 2B
(SH3PXD2B) or HOFI, is a Src substrate and scaffolding
protein that plays an important role in the formation of
podosomes and invadopodia, the dynamic actin-rich
structures that are related to cell migration and cancer
cell invasion. It is required in the formation of
functional podosomes, EGF-induced membrane ruffling, and
lamellipodia generation. It plays an important role in
cellular attachment and cell spreading. Tks4 is
essential for the localization of MT1-MMP (membrane-type
1 matrix metalloproteinase) to invadopodia. It contains
an N-terminal Phox homology (PX) domain and four SH3
domains. This model characterizes the second SH3 domain
of Tks4. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 42.7 bits (100), Expect = 3e-05
Identities = 17/54 (31%), Positives = 33/54 (61%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
E +Y YT + E++++K V+ ++ N + WWK+ ++G+ PA+Y+KK
Sbjct: 1 EKYTVIYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIRYQGKEGWAPASYLKK 54
>gnl|CDD|212941 cd12008, SH3_Src, Src homology 3 domain of Src Protein Tyrosine
Kinase. Src (or c-Src) is a cytoplasmic (or
non-receptor) PTK and is the vertebrate homolog of the
oncogenic protein (v-Src) from Rous sarcoma virus.
Together with other Src subfamily proteins, it is
involved in signaling pathways that regulate cytokine
and growth factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. Src also
play a role in regulating cell adhesion, invasion, and
motility in cancer cells, and tumor vasculature,
contributing to cancer progression and metastasis.
Elevated levels of Src kinase activity have been
reported in a variety of human cancers. Several
inhibitors of Src have been developed as anti-cancer
drugs. Src is also implicated in acute inflammatory
responses and osteoclast function. Src kinases contain
an N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 42.4 bits (99), Expect = 4e-05
Identities = 17/51 (33%), Positives = 30/51 (58%), Gaps = 2/51 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYV 199
+ALYDY ++ ++S KK + L ++N+ DWW + G++P+ YV
Sbjct: 3 VALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGYIPSNYV 53
>gnl|CDD|212782 cd11848, SH3_SLAP-like, Src homology 3 domain of Src-Like Adaptor
Proteins. SLAPs are adaptor proteins with limited
similarity to Src family tyrosine kinases. They contain
an N-terminal SH3 domain followed by an SH2 domain, and
a unique C-terminal sequence. They function in
regulating the signaling, ubiquitination, and
trafficking of T-cell receptor (TCR) and B-cell receptor
(BCR) components. Vertebrates contain two SLAPs, named
SLAP (or SLA1) and SLAP2 (or SLA2). SLAP has been shown
to interact with the EphA receptor, EpoR, Lck, PDGFR,
Syk, CD79a, among others, while SLAP2 interacts with
CSF1R. Both SLAPs interact with c-Cbl, LAT, CD247, and
Zap70. SLAP modulates TCR surface expression levels as
well as surface and total BCR levels. As an adaptor to
c-Cbl, SLAP increases the ubiquitination, intracellular
retention, and targeted degradation of the BCR complex
components. SLAP2 plays a role in c-Cbl-dependent
regulation of CSF1R, a tyrosine kinase important for
myeloid cell growth and differentiation. The SH3 domain
of SLAP forms a complex with v-Abl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 42.2 bits (99), Expect = 5e-05
Identities = 21/54 (38%), Positives = 35/54 (64%), Gaps = 3/54 (5%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV--EVNDRQGFVPAAYVKKM 202
+AL DY P E+S++ + LT++ S+ DWWKV EV R+ ++P+ +V K+
Sbjct: 3 VALGDYPSGGPAELSLRLGEPLTIV-SDEGDWWKVLSEVTGRESYIPSVHVAKV 55
>gnl|CDD|212880 cd11947, SH3_GRAP2_N, N-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also have roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The N-terminal SH3 domain of the related protein
GRB2 binds to Sos and Sos-derived proline-rich peptides.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 41.7 bits (98), Expect = 5e-05
Identities = 19/48 (39%), Positives = 31/48 (64%), Gaps = 1/48 (2%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
+D+T E+S KK DVL +L+S++ W+K E+N +G+VP +V
Sbjct: 4 GKFDFTASGEDELSFKKGDVLKILSSDD-IWFKAELNGEEGYVPKNFV 50
>gnl|CDD|212940 cd12007, SH3_Yes, Src homology 3 domain of Yes Protein Tyrosine
Kinase. Yes (or c-Yes) is a member of the Src subfamily
of proteins, which are cytoplasmic (or non-receptor)
PTKs. c-Yes kinase is the cellular homolog of the
oncogenic protein (v-Yes) encoded by the Yamaguchi 73
and Esh sarcoma viruses. It displays functional overlap
with other Src subfamily members, particularly Src. It
also shows some unique functions such as binding to
occludins, transmembrane proteins that regulate
extracellular interactions in tight junctions. Yes also
associates with a number of proteins in different cell
types that Src does not interact with, like JAK2 and
gp130 in pre-adipocytes, and Pyk2 in treated pulmonary
vein endothelial cells. Although the biological function
of Yes remains unclear, it appears to have a role in
regulating cell-cell interactions and vesicle
trafficking in polarized cells. Src kinases contain an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 41.9 bits (98), Expect = 6e-05
Identities = 16/51 (31%), Positives = 30/51 (58%), Gaps = 2/51 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYV 199
+ALYDY ++ ++S KK + ++N+ DWW+ + G++P+ YV
Sbjct: 4 VALYDYEARTTEDLSFKKGERFQIINNTEGDWWEARSIATGKNGYIPSNYV 54
>gnl|CDD|212741 cd11807, SH3_ASPP, Src homology 3 domain of Apoptosis Stimulating
of p53 proteins (ASPP). The ASPP family of proteins
bind to important regulators of apoptosis (p53, Bcl-2,
and RelA) and cell growth (APCL, PP1). They share
similarity at their C-termini, where they harbor a
proline-rich region, four ankyrin (ANK) repeats, and an
SH3 domain. Vertebrates contain three members of the
family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2
activate the apoptotic function of the p53 family of
tumor suppressors (p53, p63, and p73), while iASPP is an
oncoprotein that specifically inhibits p53-induced
apoptosis. The expression of ASPP proteins is altered in
tumors; ASPP1 and ASPP2 are downregulated whereas iASPP
is upregulated is some cancer types. ASPP proteins also
bind and regulate protein phosphatase 1 (PP1), and this
binding is competitive with p53 binding. The SH3 domain
and the ANK repeats of ASPP contribute to the p53
binding site; they bind to the DNA binding domain of
p53. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 42.0 bits (99), Expect = 6e-05
Identities = 18/49 (36%), Positives = 32/49 (65%), Gaps = 3/49 (6%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLL---NSNNKDWWKVEVNDRQGFVP 195
V AL+DY ++ E+S ++ D LT+L + + +WW +ND++G+VP
Sbjct: 3 VYALFDYEAENGDELSFREGDELTVLRKGDDDETEWWWARLNDKEGYVP 51
>gnl|CDD|212897 cd11964, SH3_STAM1, Src homology 3 domain of Signal Transducing
Adaptor Molecule 1. STAM1 is part of the endosomal
sorting complex required for transport (ESCRT-0) and is
involved in sorting ubiquitinated cargo proteins from
the endosome. It may also be involved in the regulation
of IL2 and GM-CSF mediated signaling, and has been
implicated in neural cell survival. STAMs were
discovered as proteins that are highly phosphorylated
following cytokine and growth factor stimulation. They
function in cytokine signaling and surface receptor
degradation, as well as regulate Golgi morphology. They
associate with many proteins including Jak2 and Jak3
tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor
proteins contain VHS (Vps27, Hrs, STAM homology),
ubiquitin interacting (UIM), and SH3 domains. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 41.5 bits (97), Expect = 7e-05
Identities = 16/50 (32%), Positives = 29/50 (58%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V A+YD+ E++ K D++T+L+ ++ +WWK E G P+ +V
Sbjct: 3 VRAIYDFEAAEDNELTFKAGDIITILDDSDPNWWKGETPQGTGLFPSNFV 52
>gnl|CDD|212785 cd11851, SH3_RIM-BP, Src homology 3 domains of Rab3-interacting
molecules (RIMs) binding proteins. RIMs binding
proteins (RBPs, RIM-BPs) associate with calcium channels
present in photoreceptors, neurons, and hair cells; they
interact simultaneously with specific calcium channel
subunits, and active zone proteins, RIM1 and RIM2. RIMs
are part of the matrix at the presynaptic active zone
and are associated with synaptic vesicles through their
interaction with the small GTPase Rab3. RIM-BPs play a
role in regulating synaptic transmission by serving as
adaptors and linking calcium channels with the synaptic
vesicle release machinery. RIM-BPs contain three SH3
domains and two to three fibronectin III repeats.
Invertebrates contain one, while vertebrates contain at
least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also
called peripheral-type benzodiazapine receptor
associated protein 1 (PRAX-1). Mammals contain a third
protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly
expressed in the brain where they display overlapping
but distinct expression patterns, while RIM-BP3 is
almost exclusively expressed in the testis and is
essential in spermiogenesis. The SH3 domains of RIM-BPs
bind to the PxxP motifs of RIM1, RIM2, and L-type
(alpha1D) and N-type (alpha1B) calcium channel subunits.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 62
Score = 41.9 bits (99), Expect = 7e-05
Identities = 18/61 (29%), Positives = 33/61 (54%), Gaps = 9/61 (14%)
Query: 150 VIALYDY--TEKSP-----REVSMKKSDVLTLLNSNNKD-WWKVEVND-RQGFVPAAYVK 200
++ALYDY SP E+S DV+ + ++D ++ E+ R+G VP+ +V+
Sbjct: 2 MVALYDYNPETMSPNDDPEEELSFHAGDVVRVYGPMDEDGFYYGELEGGRKGLVPSNFVQ 61
Query: 201 K 201
+
Sbjct: 62 E 62
>gnl|CDD|212910 cd11977, SH3_VAV2_2, C-terminal (or second) Src homology 3 domain
of VAV2 protein. VAV2 is widely expressed and functions
as a guanine nucleotide exchange factor (GEF) for RhoA,
RhoB and RhoG and also activates Rac1 and Cdc42. It is
implicated in many cellular and physiological functions
including blood pressure control, eye development,
neurite outgrowth and branching, EGFR endocytosis and
degradation, and cell cluster morphology, among others.
It has been reported to associate with Nek3. VAV
proteins contain several domains that enable their
function: N-terminal calponin homology (CH), acidic,
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
Homology (PH), C1 (zinc finger), SH2, and two SH3
domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 58
Score = 41.2 bits (96), Expect = 1e-04
Identities = 17/53 (32%), Positives = 34/53 (64%), Gaps = 2/53 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLN--SNNKDWWKVEVNDRQGFVPAAYVKK 201
+A Y++ + RE+S+++ DV+ + + ++ WWK E N R G+ P+ YV++
Sbjct: 4 VARYNFAARDMRELSLREGDVVRIYSRIGGDQGWWKGETNGRIGWFPSTYVEE 56
>gnl|CDD|212879 cd11946, SH3_GRB2_N, N-terminal Src homology 3 domain of Growth
factor receptor-bound protein 2. GRB2 is a critical
signaling molecule that regulates the Ras pathway by
linking tyrosine kinases to the Ras guanine nucleotide
releasing protein Sos (son of sevenless), which converts
Ras to the active GTP-bound state. It is ubiquitously
expressed in all tissues throughout development and is
important in cell cycle progression, motility,
morphogenesis, and angiogenesis. In lymphocytes, GRB2 is
associated with antigen receptor signaling components.
GRB2 contains an N-terminal SH3 domain, a central SH2
domain, and a C-terminal SH3 domain. Its N-terminal SH3
domain binds to Sos and Sos-derived proline-rich
peptides. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 40.8 bits (95), Expect = 1e-04
Identities = 19/51 (37%), Positives = 34/51 (66%), Gaps = 1/51 (1%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSN-NKDWWKVEVNDRQGFVPAAYVK 200
IA YD+ + E+S K+ D+L +LN +++W+K E+N + GF+P Y++
Sbjct: 4 IAKYDFKATADDELSFKRGDILKVLNEECDQNWYKAELNGKDGFIPKNYIE 54
>gnl|CDD|212944 cd12011, SH3_SLAP2, Src homology 3 domain of Src-Like Adaptor
Protein 2. SLAP2 plays a role in c-Cbl-dependent
regulation of CSF1R, a tyrosine kinase important for
myeloid cell growth and differentiation. It has been
shown to interact with CSF1R, c-Cbl, LAT, CD247, and
Zap70. SLAPs are adaptor proteins with limited
similarity to Src family tyrosine kinases. They contain
an N-terminal SH3 domain followed by an SH2 domain, and
a unique C-terminal sequence. They function in
regulating the signaling, ubiquitination, and
trafficking of T-cell receptor (TCR) and B-cell receptor
(BCR) components. The SH3 domain of SLAP forms a complex
with v-Abl. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 40.9 bits (96), Expect = 1e-04
Identities = 20/54 (37%), Positives = 34/54 (62%), Gaps = 3/54 (5%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV--EVNDRQGFVPAAYVKKM 202
+AL ++ P E+S++ + LT+L S + DWWKV V R+ ++P+ YV K+
Sbjct: 3 VALCNFPSGGPTELSIRMGEQLTIL-SEDGDWWKVSSAVTGRECYIPSNYVAKV 55
>gnl|CDD|212949 cd12016, SH3_Tks_2, Second Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the second SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 40.9 bits (96), Expect = 1e-04
Identities = 15/54 (27%), Positives = 27/54 (50%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
E I Y ++ E+ + V+ ++ N WWK+ ++G+ PA Y+KK
Sbjct: 1 EKYITTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQGKEGWAPATYLKK 54
>gnl|CDD|212909 cd11976, SH3_VAV1_2, C-terminal (or second) Src homology 3 domain
of VAV1 protein. VAV1 is expressed predominantly in the
hematopoietic system and it plays an important role in
the development and activation of B and T cells. It is
activated by tyrosine phosphorylation to function as a
guanine nucleotide exchange factor (GEF) for Rho GTPases
following cell surface receptor activation, triggering
various effects such as cytoskeletal reorganization,
transcription regulation, cell cycle progression, and
calcium mobilization. It also serves as a scaffold
protein and has been shown to interact with Ku70, Socs1,
Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76,
and Syk, among others. VAV proteins contain several
domains that enable their function: N-terminal calponin
homology (CH), acidic, RhoGEF (also called
Dbl-homologous or DH), Pleckstrin Homology (PH), C1
(zinc finger), SH2, and two SH3 domains. The C-terminal
SH3 domain of Vav1 interacts with a wide variety of
proteins including cytoskeletal regulators (zyxin),
RNA-binding proteins (Sam68), transcriptional
regulators, viral proteins, and dynamin 2. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 40.7 bits (95), Expect = 2e-04
Identities = 18/51 (35%), Positives = 32/51 (62%), Gaps = 1/51 (1%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD-WWKVEVNDRQGFVPAAYVKK 201
A YD+ + E+S+K+ D++ +LN + WW+ E+ R G+ PA YV++
Sbjct: 4 ARYDFCARDRSELSLKEGDIIKILNKKGQQGWWRGEIYGRVGWFPANYVEE 54
>gnl|CDD|212892 cd11959, SH3_Cortactin, Src homology 3 domain of Cortactin.
Cortactin was originally identified as a substrate of
Src kinase. It is an actin regulatory protein that binds
to the Arp2/3 complex and stabilizes branched actin
filaments. It is involved in cellular processes that
affect cell motility, adhesion, migration, endocytosis,
and invasion. It is expressed ubiquitously except in
hematopoietic cells, where the homolog hematopoietic
lineage cell-specific 1 (HS1) is expressed instead.
Cortactin contains an N-terminal acidic domain, several
copies of a repeat domain found in cortactin and HS1, a
proline-rich region, and a C-terminal SH3 domain. The
N-terminal region interacts with the Arp2/3 complex and
F-actin, and is crucial in regulating branched actin
assembly. Cortactin also serves as a scaffold and
provides a bridge to the actin cytoskeleton for membrane
trafficking and signaling proteins that bind to its SH3
domain. Binding partners for the SH3 domain of cortactin
include dynamin2, N-WASp, MIM, FGD1, among others. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 40.5 bits (95), Expect = 2e-04
Identities = 16/50 (32%), Positives = 26/50 (52%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
+ALYDY E+S D++T + ++ WW+ + G PA YV+
Sbjct: 3 VALYDYQAADDDEISFDPDDIITNIEMIDEGWWRGVCRGKYGLFPANYVE 52
>gnl|CDD|227455 COG5126, FRQ1, Ca2+-binding protein (EF-Hand superfamily) [Signal
transduction mechanisms / Cytoskeleton / Cell division
and chromosome partitioning / General function prediction
only].
Length = 160
Score = 43.1 bits (102), Expect = 2e-04
Identities = 23/78 (29%), Positives = 35/78 (44%), Gaps = 7/78 (8%)
Query: 1491 DALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNR 1550
D +E FK FDKD G ++ E + L++LG E D E E +L D +
Sbjct: 89 DKEEELREAFKLFDKDHDGYISIGELRRVLKSLG-------ERLSDEEVEKLLKEYDEDG 141
Query: 1551 DGHVSLQEYMAFMISKET 1568
DG + +E+ + T
Sbjct: 142 DGEIDYEEFKKLIKDSPT 159
Score = 37.3 bits (87), Expect = 0.020
Identities = 17/86 (19%), Positives = 39/86 (45%), Gaps = 8/86 (9%)
Query: 1478 QQIQARNQSGVSEDALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDP 1537
+ + ++E+ ++E F+ FD+D G +++ E LR+LG++ +
Sbjct: 4 KISDLLTFTQLTEEQIQELKEAFQLFDRDSDGLIDRNELGKILRSLGFNP-------SEA 56
Query: 1538 EFEAILDLVDPNRDGHVSLQEYMAFM 1563
E + + +D + V E++ M
Sbjct: 57 EINKLFEEIDAGNET-VDFPEFLTVM 81
>gnl|CDD|212754 cd11820, SH3_STAM, Src homology 3 domain of Signal Transducing
Adaptor Molecules. STAMs were discovered as proteins
that are highly phosphorylated following cytokine and
growth factor stimulation. They function in cytokine
signaling and surface receptor degradation, as well as
regulate Golgi morphology. They associate with many
proteins including Jak2 and Jak3 tyrosine kinases, Hrs,
AMSH, and UBPY. STAM adaptor proteins contain VHS
(Vps27, Hrs, STAM homology), ubiquitin interacting
(UIM), and SH3 domains. There are two vertebrate STAMs,
STAM1 and STAM2, which may be functionally redundant;
vertebrate STAMs contain ITAM motifs. They are part of
the endosomal sorting complex required for transport
(ESCRT-0). STAM2 deficiency in mice did not cause any
obvious abnormality, while STAM1 deficiency resulted in
growth retardation. Loss of both STAM1 and STAM2 in mice
proved lethal, indicating that STAMs are important for
embryonic development. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 40.1 bits (94), Expect = 2e-04
Identities = 16/52 (30%), Positives = 30/52 (57%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
V ALYD+ E++ K +++T+L+ ++ +WWK + +G PA +V
Sbjct: 3 VRALYDFEAAEDNELTFKAGEIITVLDDSDPNWWKGSNHRGEGLFPANFVTA 54
>gnl|CDD|212691 cd11757, SH3_SH3BP4, Src Homology 3 domain of SH3 domain-binding
protein 4. SH3 domain-binding protein 4 (SH3BP4) is
also called transferrin receptor trafficking protein
(TTP). SH3BP4 is an endocytic accessory protein that
interacts with endocytic proteins including clathrin and
dynamin, and regulates the internalization of the
transferrin receptor (TfR). SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 52
Score = 40.4 bits (94), Expect = 2e-04
Identities = 14/51 (27%), Positives = 28/51 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V+A+ DY + + K D L +L+++ +WW G++P++YV+
Sbjct: 2 VVAIKDYCPTNFTTLKFSKGDHLYVLDTSGGEWWYAHNTTEMGYIPSSYVQ 52
>gnl|CDD|212816 cd11883, SH3_Sdc25, Src Homology 3 domain of Sdc25/Cdc25 guanine
nucleotide exchange factors. This subfamily is composed
of the Saccharomyces cerevisiae guanine nucleotide
exchange factors (GEFs) Sdc25 and Cdc25, and similar
proteins. These GEFs regulate Ras by stimulating the
GDP/GTP exchange on Ras. Cdc25 is involved in the
Ras/PKA pathway that plays an important role in the
regulation of metabolism, stress responses, and
proliferation, depending on available nutrients and
conditions. Proteins in this subfamily contain an
N-terminal SH3 domain as well as REM (Ras exchanger
motif) and RasGEF domains at the C-terminus. SH3 domains
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 55
Score = 40.3 bits (95), Expect = 2e-04
Identities = 17/45 (37%), Positives = 26/45 (57%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFV 194
V+ALYD+T KS ++S K D++ +LN + WW + G V
Sbjct: 2 VVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSGKV 46
>gnl|CDD|212990 cd12057, SH3_CIN85_3, Third Src Homology 3 domain (SH3C) of
Cbl-interacting protein of 85 kDa. CIN85, also called
SH3 domain-containing kinase-binding protein 1 (SH3KBP1)
or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor
protein that is involved in the downregulation of
receptor tyrosine kinases by facilitating endocytosis
through interaction with endophilin-associated ubiquitin
ligase Cbl proteins. It is also important in many other
cellular processes including vesicle-mediated transport,
cytoskeletal remodelling, apoptosis, cell adhesion and
migration, and viral infection, among others. CIN85
exists as multiple variants from alternative splicing;
the main variant contains three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CIN85 to bind
various protein partners and assemble complexes that
have been implicated in many different functions. This
alignment model represents the third SH3 domain (SH3C)
of CIN85. SH3C has been shown to bind ubiquitin. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 40.3 bits (94), Expect = 2e-04
Identities = 17/50 (34%), Positives = 33/50 (66%), Gaps = 2/50 (4%)
Query: 153 LYDYTEKSPREVSMKKSDVLTLLNSNNKD--WWKVEVNDRQGFVPAAYVK 200
L+ Y ++ E+++K+ D++TL++ + D WW+ E+N R+G P +VK
Sbjct: 5 LFPYEAQNEDELTIKEGDIVTLISKDCIDAGWWEGELNGRRGVFPDNFVK 54
>gnl|CDD|212810 cd11877, SH3_PIX, Src Homology 3 domain of Pak Interactive eXchange
factors. PIX proteins are Rho guanine nucleotide
exchange factors (GEFs), which activate small GTPases by
exchanging bound GDP for free GTP. They act as GEFs for
both Cdc42 and Rac 1, and have been implicated in cell
motility, adhesion, neurite outgrowth, and cell
polarity. Vertebrates contain two proteins from the PIX
subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also
called ARHGEF6, is localized in dendritic spines where
it regulates spine morphogenesis. Mutations in the
ARHGEF6 gene cause X-linked intellectual disability in
humans. Beta-PIX play roles in regulating neuroendocrine
exocytosis, focal adhesion maturation, cell migration,
synaptic vesicle localization, and insulin secretion.
PIX proteins contain an N-terminal SH3 domain followed
by RhoGEF (also called Dbl-homologous or DH) and
Pleckstrin Homology (PH) domains, and a C-terminal
leucine-zipper domain for dimerization. The SH3 domain
of PIX binds to an atypical PxxxPR motif in
p21-activated kinases (PAKs) with high affinity. The
binding of PAKs to PIX facilitate the localization of
PAKs to focal complexes and also localizes PAKs to PIX
targets Cdc43 and Rac, leading to the activation of
PAKs. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 40.0 bits (94), Expect = 2e-04
Identities = 15/51 (29%), Positives = 28/51 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V A +++ + E+S K D++T+ WW+ +N + G+ P+ YVK
Sbjct: 2 VRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWEGTLNGKTGWFPSNYVK 52
>gnl|CDD|212881 cd11948, SH3_GRAP_N, N-terminal Src homology 3 domain of
GRB2-related adaptor protein. GRAP is a GRB-2 like
adaptor protein that is highly expressed in lymphoid
tissues. It acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. It
has been identified as a regulator of TGFbeta signaling
in diabetic kidney tubules and may have a role in the
pathogenesis of the disease. GRAP contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The N-terminal SH3 domain of the related protein
GRB2 binds to Sos and Sos-derived proline-rich peptides.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 40.2 bits (94), Expect = 3e-04
Identities = 17/51 (33%), Positives = 33/51 (64%), Gaps = 1/51 (1%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLN-SNNKDWWKVEVNDRQGFVPAAYVK 200
+ALY + E+ +K D+L +LN ++++W+K E+ R+G++P Y+K
Sbjct: 3 VALYSFQATESDELPFQKGDILKILNMEDDQNWYKAELQGREGYIPKNYIK 53
>gnl|CDD|212692 cd11758, SH3_CRK_N, N-terminal Src Homology 3 domain of Ct10
Regulator of Kinase adaptor proteins. CRK adaptor
proteins consists of SH2 and SH3 domains, which bind
tyrosine-phosphorylated peptides and proline-rich
motifs, respectively. They function downstream of
protein tyrosine kinases in many signaling pathways
started by various extracellular signals, including
growth and differentiation factors. Cellular CRK (c-CRK)
contains a single SH2 domain, followed by N-terminal and
C-terminal SH3 domains. It is involved in the regulation
of many cellular processes including cell growth,
motility, adhesion, and apoptosis. CRK has been
implicated in the malignancy of various human cancers.
The N-terminal SH3 domain of CRK binds a number of
target proteins including DOCK180, C3G, SOS, and cABL.
The CRK family includes two alternatively spliced
protein forms, CRKI and CRKII, that are expressed by the
CRK gene, and the CRK-like (CRKL) protein, which is
expressed by a distinct gene (CRKL). SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 40.0 bits (94), Expect = 3e-04
Identities = 16/55 (29%), Positives = 30/55 (54%), Gaps = 1/55 (1%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAYVKK 201
E V AL+D+ ++ KK ++LT++ + WW ++ + G +P YV+K
Sbjct: 1 EYVRALFDFPGNDDEDLPFKKGEILTVIRKPEEQWWNARNSEGKTGMIPVPYVEK 55
>gnl|CDD|212939 cd12006, SH3_Fyn_Yrk, Src homology 3 domain of Fyn and Yrk Protein
Tyrosine Kinases. Fyn and Yrk (Yes-related kinase) are
members of the Src subfamily of proteins, which are
cytoplasmic (or non-receptor) PTKs. Fyn, together with
Lck, plays a critical role in T-cell signal transduction
by phosphorylating ITAM (immunoreceptor tyr activation
motif) sequences on T-cell receptors, ultimately leading
to the proliferation and differentiation of T-cells. In
addition, Fyn is involved in the myelination of neurons,
and is implicated in Alzheimer's and Parkinson's
diseases. Yrk has been detected only in chickens. It is
primarily found in neuronal and epithelial cells and in
macrophages. It may play a role in inflammation and in
response to injury. Src kinases contain an N-terminal
SH4 domain with a myristoylation site, followed by SH3
and SH2 domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr. They are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
The SH3 domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 40.0 bits (93), Expect = 3e-04
Identities = 17/51 (33%), Positives = 29/51 (56%), Gaps = 2/51 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYV 199
+ALYDY ++ ++S K + +LNS+ DWW+ G++P+ YV
Sbjct: 4 VALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARSLTTGETGYIPSNYV 54
>gnl|CDD|212761 cd11827, SH3_MyoIe_If_like, Src homology 3 domain of Myosins Ie,
If, and similar proteins. Myosins Ie (MyoIe) and If
(MyoIf) are nonmuscle, unconventional, long tailed,
class I myosins containing an N-terminal motor domain
and a myosin tail with TH1, TH2, and SH3 domains. MyoIe
interacts with the endocytic proteins, dynamin and
synaptojanin-1, through its SH3 domain; it may play a
role in clathrin-dependent endocytosis. In the kidney,
MyoIe is critical for podocyte function and normal
glomerular filtration. Mutations in MyoIe is associated
with focal segmental glomerulosclerosis, a disease
characterized by massive proteinuria and progression to
end-stage kidney disease. MyoIf is predominantly
expressed in the immune system; it plays a role in
immune cell motility and innate immunity. Mutations in
MyoIf may be associated with the loss of hearing. The
MyoIf gene has also been found to be fused to the MLL
(Mixed lineage leukemia) gene in infant acute myeloid
leukemias (AML). SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 40.1 bits (94), Expect = 3e-04
Identities = 15/50 (30%), Positives = 26/50 (52%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
ALY Y + E+S + D++ +L + WW + ++G P YV+K
Sbjct: 4 ALYAYDAQDTDELSFNEGDIIEILKEDPSGWWTGRLRGKEGLFPGNYVEK 53
>gnl|CDD|212887 cd11954, SH3_ASPP1, Src Homology 3 domain of Apoptosis Stimulating
of p53 protein 1. ASPP1, like ASPP2, activates the
apoptotic function of the p53 family of tumor
suppressors (p53, p63, and p73). In addition, it
functions in the cytoplasm to regulate the nuclear
localization of the transcriptional cofactors YAP and
TAZ by inihibiting their phosphorylation; YAP and TAZ
are important regulators of cell expansion,
differentiation, migration, and invasion. ASPP1 is
downregulated in breast tumors expressing wild-type p53.
It contains a proline-rich region, four ankyrin (ANK)
repeats, and an SH3 domain at its C-terminal half. The
SH3 domain and the ANK repeats of ASPP1 contribute to
the p53 binding site; they bind to the DNA binding
domain of p53. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 40.0 bits (93), Expect = 3e-04
Identities = 17/49 (34%), Positives = 32/49 (65%), Gaps = 3/49 (6%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLL---NSNNKDWWKVEVNDRQGFVP 195
V AL+DY ++ E+S ++ D +T+L + + +WW +ND++G+VP
Sbjct: 3 VYALWDYEAQNADELSFQEGDAITILRRKDDSETEWWWARLNDKEGYVP 51
>gnl|CDD|212772 cd11838, SH3_Intersectin_3, Third Src homology 3 domain (or SH3C)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The third SH3 domain (or SH3C) of
ITSN1 has been shown to bind many proteins including
dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1,
and WNK, among others. The SH3C of ITSN2 has been shown
to bind the K15 protein of Kaposi's sarcoma-associated
herpesvirus. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 39.7 bits (93), Expect = 3e-04
Identities = 17/51 (33%), Positives = 27/51 (52%), Gaps = 1/51 (1%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
IALY Y P +++ DV+ L+ + +WW + DR G P+ YV+
Sbjct: 3 IALYPYESNEPGDLTFNAGDVI-LVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
>gnl|CDD|212925 cd11992, SH3_Intersectin2_3, Third Src homology 3 domain (or SH3C)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The third SH3 domain
(SH3C) of ITSN2 has been shown to bind the K15 protein
of Kaposi's sarcoma-associated herpesvirus. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 39.6 bits (92), Expect = 3e-04
Identities = 15/50 (30%), Positives = 27/50 (54%), Gaps = 1/50 (2%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
IALY Y+ P +++ + + L+ + +WW + DR G P+ YV+
Sbjct: 3 IALYPYSSSEPGDLTFNEGE-EILVTQKDGEWWTGSIEDRTGIFPSNYVR 51
>gnl|CDD|197492 smart00054, EFh, EF-hand, calcium binding motif. EF-hands are
calcium-binding motifs that occur at least in pairs.
Links between disease states and genes encoding EF-hands,
particularly the S100 subclass, are emerging. Each motif
consists of a 12 residue loop flanked on either side by a
12 residue alpha-helix. EF-hands undergo a conformational
change unpon binding calcium ions.
Length = 29
Score = 38.9 bits (92), Expect = 4e-04
Identities = 14/29 (48%), Positives = 18/29 (62%)
Query: 1495 EFSMMFKHFDKDKSGKLNQTEFKSCLRAL 1523
E F+ FDKD GK++ EFK L+AL
Sbjct: 1 ELKEAFRLFDKDGDGKIDFEEFKDLLKAL 29
Score = 31.2 bits (72), Expect = 0.18
Identities = 6/26 (23%), Positives = 12/26 (46%)
Query: 1538 EFEAILDLVDPNRDGHVSLQEYMAFM 1563
E + L D + DG + +E+ +
Sbjct: 1 ELKEAFRLFDKDGDGKIDFEEFKDLL 26
>gnl|CDD|212777 cd11843, SH3_PACSIN, Src homology 3 domain of Protein kinase C and
Casein kinase Substrate in Neurons (PACSIN) proteins.
PACSINs, also called Synaptic dynamin-associated
proteins (Syndapins), act as regulators of cytoskeletal
and membrane dynamics. They bind both dynamin and
Wiskott-Aldrich syndrome protein (WASP), and may provide
direct links between the actin cytoskeletal machinery
through WASP and dynamin-dependent endocytosis.
Vetebrates harbor three isoforms with distinct
expression patterns and specific functions. PACSINs
contain an N-terminal F-BAR domain and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 39.3 bits (92), Expect = 4e-04
Identities = 21/51 (41%), Positives = 28/51 (54%), Gaps = 1/51 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLL-NSNNKDWWKVEVNDRQGFVPAAYV 199
V ALYDY + E+S K D+LT L + + W K ++ R G PA YV
Sbjct: 2 VRALYDYEGQESDELSFKAGDILTKLEEEDEQGWCKGRLDGRVGLYPANYV 52
>gnl|CDD|212893 cd11960, SH3_Abp1_eu, Src homology 3 domain of eumetazoan
Actin-binding protein 1. Abp1, also called drebrin-like
protein, is an adaptor protein that functions in
receptor-mediated endocytosis and vesicle trafficking.
It contains an N-terminal actin-binding module, the
actin-depolymerizing factor (ADF) homology domain, a
helical domain, and a C-terminal SH3 domain. Mammalian
Abp1, unlike yeast Abp1, does not contain an acidic
domain that interacts with the Arp2/3 complex. It
regulates actin dynamics indirectly by interacting with
dynamin and WASP family proteins. Abp1 deficiency causes
abnormal organ structure and function of the spleen,
heart, and lung of mice. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 39.3 bits (92), Expect = 5e-04
Identities = 16/53 (30%), Positives = 25/53 (47%), Gaps = 1/53 (1%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWK-VEVNDRQGFVPAAYVK 200
ALYDY E+S D++T + ++ WW+ + G PA YV+
Sbjct: 1 RARALYDYQAADDTEISFDPGDIITDIEQIDEGWWRGTGPDGTYGLFPANYVE 53
>gnl|CDD|212798 cd11864, SH3_PEX13_eumet, Src Homology 3 domain of eumetazoan
Peroxisomal biogenesis factor 13. PEX13 is a peroxin
and is required for protein import into the peroxisomal
matrix and membrane. It is an integral membrane protein
that is essential for the localization of PEX14 and the
import of proteins containing the peroxisome matrix
targeting signals, PTS1 and PTS2. Mutations of the PEX13
gene in humans lead to a wide range of peroxisome
biogenesis disorders (PBDs), the most severe of which is
known as Zellweger syndrome (ZS), a severe multisystem
disorder characterized by hypotonia, psychomotor
retardation, and neuronal migration defects. PEX13
contains two transmembrane regions and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 39.2 bits (92), Expect = 5e-04
Identities = 19/55 (34%), Positives = 27/55 (49%), Gaps = 5/55 (9%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTL----LNSNNKDWWKVEVNDRQ-GFVPAAYVK 200
A YD+ +S E+S + D L L L + W V+ ++ G VPA YVK
Sbjct: 3 RAEYDFVAESEDELSFRAGDKLRLAPKELQPRVRGWLLATVDGQKIGLVPANYVK 57
>gnl|CDD|212803 cd11870, SH3_p67phox-like_C, C-terminal Src Homology 3 domain of
the p67phox subunit of NADPH oxidase and similar
proteins. This subfamily is composed of p67phox, NADPH
oxidase activator 1 (Noxa1), and similar proteins.
p67phox, also called Neutrophil cytosol factor 2
(NCF-2), and Noxa1 are homologs and are the cytosolic
subunits of the phagocytic (Nox2) and nonphagocytic
(Nox1) NADPH oxidase complexes, respectively. NADPH
oxidase catalyzes the transfer of electrons from NADPH
to oxygen during phagocytosis forming superoxide and
reactive oxygen species. p67phox and Noxa1 play
regulatory roles. p67phox contains N-terminal TPR, first
SH3 (or N-terminal or central SH3), PB1, and C-terminal
SH3 domains. Noxa1 has a similar domain architecture
except it is lacking the N-terminal SH3 domain. The TPR
domain of both binds activated GTP-bound Rac, while the
C-terminal SH3 domain of p67phox and Noxa1 binds the
polyproline motif found at the C-terminus of p47phox and
Noxo1, respectively. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 39.0 bits (91), Expect = 5e-04
Identities = 13/51 (25%), Positives = 27/51 (52%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
V+AL+ Y + P ++ ++ D + +L+ N+ W + + R G P +V
Sbjct: 2 VVALHRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGHSDGRVGIFPKCFVV 52
>gnl|CDD|212989 cd12056, SH3_CD2AP_3, Third Src Homology 3 domain (SH3C) of
CD2-associated protein. CD2AP, also called CMS (Cas
ligand with Multiple SH3 domains) or METS1
(Mesenchyme-to-Epithelium Transition protein with SH3
domains), is a cytosolic adaptor protein that plays a
role in regulating the cytoskeleton. It is critical in
cell-to-cell union necessary for kidney function. It
also stabilizes the contact between a T cell and
antigen-presenting cells. It is primarily expressed in
podocytes at the cytoplasmic face of the slit diaphragm
and serves as a linker anchoring podocin and nephrin to
the actin cytoskeleton. CD2AP contains three SH3
domains, a proline-rich region, and a C-terminal
coiled-coil domain. All of these domains enable CD2AP to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
This alignment model represents the third SH3 domain
(SH3C) of CD2AP. SH3C has been shown to bind ubiquitin.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 39.0 bits (91), Expect = 6e-04
Identities = 15/55 (27%), Positives = 31/55 (56%), Gaps = 2/55 (3%)
Query: 147 KECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKD--WWKVEVNDRQGFVPAAYV 199
KE AL+ Y + E+ K+ +++ +++ + + WWK E+N ++G P +V
Sbjct: 1 KEYCKALFHYEGTNEDELDFKEGEIILIISKDTGEPGWWKGELNGKEGVFPDNFV 55
>gnl|CDD|200946 pfam00036, efhand, EF hand. The EF-hands can be divided into two
classes: signaling proteins and buffering/transport
proteins. The first group is the largest and includes the
most well-known members of the family such as calmodulin,
troponin C and S100B. These proteins typically undergo a
calcium-dependent conformational change which opens a
target binding site. The latter group is represented by
calbindin D9k and do not undergo calcium dependent
conformational changes.
Length = 29
Score = 38.2 bits (90), Expect = 6e-04
Identities = 14/29 (48%), Positives = 17/29 (58%)
Query: 1495 EFSMMFKHFDKDKSGKLNQTEFKSCLRAL 1523
E FK FDKD GK++ EFK L+ L
Sbjct: 1 ELKEAFKEFDKDGDGKISFEEFKELLKKL 29
Score = 30.5 bits (70), Expect = 0.38
Identities = 6/26 (23%), Positives = 12/26 (46%)
Query: 1538 EFEAILDLVDPNRDGHVSLQEYMAFM 1563
E + D + DG +S +E+ +
Sbjct: 1 ELKEAFKEFDKDGDGKISFEEFKELL 26
>gnl|CDD|212905 cd11972, SH3_Abi2, Src homology 3 domain of Abl Interactor 2. Abi2
is highly expressed in the brain and eye. It regulates
actin cytoskeletal reorganization at adherens junctions
and dendritic spines, which is important in cell
morphogenesis, migration, and cognitive function. Mice
deficient with Abi2 show defects in orientation and
migration of lens fibers, neuronal migration, dendritic
spine morphology, as well as deficits in learning and
memory. Abi proteins are adaptor proteins serving as
binding partners and substrates of Abl tyrosine kinases.
They are involved in regulating actin cytoskeletal
reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. Abi proteins contain a homeobox homology
domain, a proline-rich region, and a SH3 domain. The SH3
domain of Abi binds to a PxxP motif in Abl. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 39.2 bits (91), Expect = 6e-04
Identities = 16/55 (29%), Positives = 32/55 (58%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
E V+A+YDYT+ E+S ++ ++ ++ N+ W++ +N G P YV+ +
Sbjct: 3 EKVVAIYDYTKDKEDELSFQEGAIIYVIKKNDDGWYEGVMNGVTGLFPGNYVESI 57
>gnl|CDD|212704 cd11770, SH3_Nephrocystin, Src Homology 3 domain of Nephrocystin
(or Nephrocystin-1). Nephrocystin contains an SH3
domain involved in signaling pathways that regulate cell
adhesion and cytoskeletal organization. It is a protein
that in humans is associated with juvenile
nephronophthisis, an inherited kidney disease
characterized by renal fibrosis that lead to chronic
renal failure in children. It is localized in cell-cell
junctions in renal duct cells, and is known to interact
with Ack1, an activated Cdc42-associated kinase. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 38.8 bits (91), Expect = 7e-04
Identities = 16/53 (30%), Positives = 26/53 (49%), Gaps = 1/53 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYVKK 201
AL D+ + ++S KK +VL +++ WW E +G VP Y+K
Sbjct: 2 YEALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAENSKGNRGLVPKTYLKV 54
>gnl|CDD|205583 pfam13405, EF_hand_4, EF-hand domain.
Length = 30
Score = 38.0 bits (89), Expect = 7e-04
Identities = 13/30 (43%), Positives = 17/30 (56%)
Query: 1495 EFSMMFKHFDKDKSGKLNQTEFKSCLRALG 1524
E FK FDKD G ++ E + LR+LG
Sbjct: 1 ELREAFKLFDKDGDGYISAEELRKALRSLG 30
>gnl|CDD|212954 cd12021, SH3_p47phox_1, First or N-terminal Src homology 3 domain
of the p47phox subunit of NADPH oxidase, also called
Neutrophil Cytosolic Factor 1. p47phox, or NCF1, is a
cytosolic subunit of the phagocytic NADPH oxidase
complex (also called Nox2 or gp91phox), which plays a
key role in the ability of phagocytes to defend against
bacterial infections. NADPH oxidase catalyzes the
transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p47phox is required for activation of NADH
oxidase and plays a role in translocation. It contains
an N-terminal Phox homology (PX) domain, tandem SH3
domains (N-SH3 and C-SH3), a polybasic/autoinhibitory
region, and a C-terminal proline-rich region (PRR). This
model characterizes the first SH3 domain (or N-SH3) of
p47phox. In its inactive state, the tandem SH3 domains
interact intramolecularly with the autoinhibitory
region; upon activation, the tandem SH3 domains are
exposed through a conformational change, resulting in
their binding to the PRR of p22phox and the activation
of NADPH oxidase. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 38.8 bits (90), Expect = 7e-04
Identities = 15/49 (30%), Positives = 32/49 (65%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
A+ DY + S E+++K DV+ ++ + WW ++ ++G+VPA+Y++
Sbjct: 4 AIADYEKSSKSEMALKTGDVVEVVEKSENGWWFCQLKAKRGWVPASYLE 52
>gnl|CDD|212747 cd11813, SH3_SGSM3, Src Homology 3 domain of Small G protein
Signaling Modulator 3. SGSM3 is also called
Merlin-associated protein (MAP), RUN and SH3
domain-containing protein (RUSC3), RUN and TBC1
domain-containing protein 3 (RUTBC3), Rab
GTPase-activating protein 5 (RabGAP5), or Rab GAP-like
protein (RabGAPLP). It is expressed ubiquitously and
functions as a regulator of small G protein RAP- and
RAB-mediated neuronal signaling. It is involved in
modulating NGF-mediated neurite outgrowth and
differentiation. It also interacts with the tumor
suppressor merlin and may play a role in the
merlin-associated suppression of cell growth. SGSM3
contains TBC, SH3, and RUN domains. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 53
Score = 38.6 bits (90), Expect = 8e-04
Identities = 14/49 (28%), Positives = 30/49 (61%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL D+ E+ +K+D++T+++ ++ W E+N +G+ PA +V+
Sbjct: 4 ALLDFERHDDDELGFRKNDIITIISQKDEHCWVGELNGLRGWFPAKFVE 52
>gnl|CDD|212902 cd11969, SH3_PLCgamma2, Src homology 3 domain of Phospholipase C
(PLC) gamma 2. PLCgamma2 is primarily expressed in
haematopoietic cells, specifically in B cells. It is
activated by tyrosine phosphorylation by B cell receptor
(BCR) kinases and is recruited to the plasma membrane
where its substrate is located. It is required in
pre-BCR signaling and in the maturation of B cells. PLCs
catalyze the hydrolysis of phosphatidylinositol
(4,5)-bisphosphate [PtdIns(4,5)P2] to produce
Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3
initiates the calcium signaling cascade while DAG
functions as an activator of PKC. PLCgamma contains a
Pleckstrin homology (PH) domain followed by an
elongation factor (EF) domain, two catalytic regions of
PLC domains that flank two tandem SH2 domains, followed
by a SH3 domain and C2 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 38.7 bits (90), Expect = 8e-04
Identities = 17/54 (31%), Positives = 28/54 (51%), Gaps = 1/54 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR-QGFVPAAYVKKM 202
V ALYDY K E+S K ++ ++ WWK + + Q + P+ YV+ +
Sbjct: 2 VKALYDYRAKRSDELSFCKGALIHNVSKETGGWWKGDYGGKVQHYFPSNYVEDV 55
>gnl|CDD|212784 cd11850, SH3_Abl, Src homology 3 domain of the Protein Tyrosine
Kinase, Abelson kinase. Abl (or c-Abl) is a
ubiquitously-expressed cytoplasmic (or nonreceptor) PTK
that contains SH3, SH2, and tyr kinase domains in its
N-terminal region, as well as nuclear localization
motifs, a putative DNA-binding domain, and F- and
G-actin binding domains in its C-terminal tail. It also
contains a short autoinhibitory cap region in its
N-terminus. Abl function depends on its subcellular
localization. In the cytoplasm, Abl plays a role in cell
proliferation and survival. In response to DNA damage or
oxidative stress, Abl is transported to the nucleus
where it induces apoptosis. In chronic myelogenous
leukemia (CML) patients, an aberrant translocation
results in the replacement of the first exon of Abl with
the BCR (breakpoint cluster region) gene. The resulting
BCR-Abl fusion protein is constitutively active and
associates into tetramers, resulting in a hyperactive
kinase sending a continuous signal. This leads to
uncontrolled proliferation, morphological transformation
and anti-apoptotic effects. BCR-Abl is the target of
selective inhibitors, such as imatinib (Gleevec), used
in the treatment of CML. Abl2, also known as ARG
(Abelson-related gene), is thought to play a cooperative
role with Abl in the proper development of the nervous
system. The Tel-ARG fusion protein, resulting from
reciprocal translocation between chromosomes 1 and 12,
is associated with acute myeloid leukemia (AML). SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 38.5 bits (90), Expect = 8e-04
Identities = 18/52 (34%), Positives = 30/52 (57%), Gaps = 3/52 (5%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSN-NKDWWKVEV--NDRQGFVPAAYV 199
+ALYD+ ++S+KK + L +L N N +W + E QG+VP+ Y+
Sbjct: 3 VALYDFVASGENQLSIKKGEQLRVLGYNKNGEWCEAESKSTGGQGWVPSNYI 54
>gnl|CDD|213019 cd12143, SH3_ARHGAP9, Src Homology 3 domain of Rho
GTPase-activating protein 9 and similar proteins. Rho
GTPase-activating proteins (RhoGAPs or ARHGAPs) bind to
Rho proteins and enhance the hydrolysis rates of bound
GTP. ARHGAP9 functions as a GAP for Rac and Cdc42, but
not for RhoA. It negatively regulates cell migration and
adhesion. It also acts as a docking protein for the MAP
kinases Erk2 and p38alpha, and may facilitate cross-talk
between the Rho GTPase and MAPK pathways to control
actin remodeling. It contains SH3, WW, Pleckstin
homology (PH), and RhoGAP domains. SH3 domains bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 57
Score = 38.7 bits (90), Expect = 9e-04
Identities = 20/54 (37%), Positives = 25/54 (46%), Gaps = 7/54 (12%)
Query: 152 ALYDYTEKSP--REVSMKKSDVLTLLNSNNKDWWKVE-----VNDRQGFVPAAY 198
ALY Y R+VS+ + + LL N DWW+V R FVPA Y
Sbjct: 4 ALYAYQYTGADGRQVSIAEGERFLLLRKTNSDWWQVRRLEAPSTSRPLFVPATY 57
>gnl|CDD|212957 cd12024, SH3_NoxO1_2, Second or C-terminal Src homology 3 domain of
NADPH oxidase (Nox) Organizing protein 1. Nox
Organizing protein 1 (NoxO1) is a critical regulator of
enzyme kinetics of the nonphagocytic NADPH oxidase Nox1,
which catalyzes the transfer of electrons from NADPH to
molecular oxygen to form superoxide. Nox1 is expressed
in colon, stomach, uterus, prostate, and vascular smooth
muscle cells. NoxO1 is involved in targeting activator
subunits (such as NoxA1) to Nox1. It is co-localized
with Nox1 in the membranes of resting cells and directs
the subcellular localization of Nox1. NoxO1 contains an
N-terminal Phox homology (PX) domain, tandem SH3 domains
(N-SH3 and C-SH3), and a C-terminal proline-rich region
(PRR). This model characterizes the second SH3 domain
(or C-SH3) of NoxO1. The tandem SH3 domains of NoxO1
interact with the PRR of p22phox, which also complexes
with Nox1. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 38.5 bits (90), Expect = 9e-04
Identities = 13/45 (28%), Positives = 25/45 (55%)
Query: 156 YTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
Y + E+S+ V+ +L ++ WW + N R G+VP+ Y++
Sbjct: 8 YEAQKEDELSVPAGVVVEVLQKSDNGWWLIRYNGRAGYVPSMYLQ 52
>gnl|CDD|212832 cd11899, SH3_Nck2_1, First Src Homology 3 domain of Nck2 adaptor
protein. Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4) plays a crucial role in
connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds neuronal signaling
proteins such as ephrinB and Disabled-1 (Dab-1)
exclusively. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2, which show partly overlapping functions but also
bind distinct targets. The first SH3 domain of Nck2
binds the PxxDY sequence in the CD3e cytoplasmic tail;
this binding inhibits phosphorylation by Src kinases,
resulting in the downregulation of TCR surface
expression. SH3 domains are protein interaction domains
that usually bind to proline-rich ligands with moderate
affinity and selectivity, preferentially a PxxP motif.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 58
Score = 38.6 bits (89), Expect = 0.001
Identities = 22/53 (41%), Positives = 38/53 (71%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYVKK 201
VIA +DYT + +E+ +KK++ L LL+ ++K WW+V +R G+VP+ YV++
Sbjct: 6 VIAKWDYTAQQDQELDIKKNERLWLLD-DSKTWWRVRNAANRTGYVPSNYVER 57
>gnl|CDD|212890 cd11957, SH3_RUSC2, Src homology 3 domain of RUN and SH3
domain-containing protein 2. RUSC2, also called Iporin
or Interacting protein of Rab1, is expressed
ubiquitously with highest amounts in the brain and
testis. It interacts with the small GTPase Rab1 and the
Golgi matrix protein GM130, and may function in linking
GTPases to certain intracellular signaling pathways.
RUSC proteins are adaptor proteins consisting of RUN,
leucine zipper, and SH3 domains. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 52
Score = 38.4 bits (89), Expect = 0.001
Identities = 17/50 (34%), Positives = 26/50 (52%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V AL + P ++S K D+L +L+ + DW + + G VP AYV
Sbjct: 2 VKALCHHIATEPGQLSFNKGDILQVLSRADGDWLRCSLGPDSGLVPIAYV 51
>gnl|CDD|212840 cd11907, SH3_TXK, Src Homology 3 domain of TXK, also called Resting
lymphocyte kinase (Rlk). TXK is a cytoplasmic (or
nonreceptor) tyr kinase containing Src homology protein
interaction domains (SH3, SH2) N-terminal to the
catalytic tyr kinase domain. It also contains an
N-terminal cysteine-rich region. Rlk is expressed in
T-cells and mast cell lines, and is a key component of
T-cell receptor (TCR) signaling. It is important in
TCR-stimulated proliferation, IL-2 production and
phospholipase C-gamma1 activation. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 38.4 bits (89), Expect = 0.001
Identities = 17/53 (32%), Positives = 30/53 (56%), Gaps = 5/53 (9%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR---QGFVPAAYV 199
V ALYD+ + P +++K+++ +L + WWK DR +G +P+ YV
Sbjct: 3 VKALYDFLPREPSNLALKRAEEYLILEQYDPHWWKAR--DRYGNEGLIPSNYV 53
>gnl|CDD|212991 cd12058, SH3_MLK4, Src Homology 3 domain of Mixed Lineage Kinase 4.
MLK4 is a Serine/Threonine Kinase (STK), catalyzing the
transfer of the gamma-phosphoryl group from ATP to S/T
residues on protein substrates. MLKs act as
mitogen-activated protein kinase kinase kinases (MAP3Ks,
MKKKs, MAPKKKs), which phosphorylate and activate MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. MLKs play roles in
immunity and inflammation, as well as in cell death,
proliferation, and cell cycle regulation. The specific
function of MLK4 is yet to be determined. Mutations in
the kinase domain of MLK4 have been detected in
colorectal cancers. MLK4 contains an SH3 domain, a
catalytic kinase domain, a leucine zipper, a
proline-rich region, and a CRIB domain that mediates
binding to GTP-bound Cdc42 and Rac. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 38.4 bits (89), Expect = 0.001
Identities = 19/53 (35%), Positives = 29/53 (54%), Gaps = 5/53 (9%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLN-----SNNKDWWKVEVNDRQGFVPAAYV 199
ALYDY E+S+++ DV+ +L+ S + WW ++ R G PA YV
Sbjct: 4 ALYDYEASGEDELSLRRGDVVEVLSQDAAVSGDDGWWAGKIRHRLGIFPANYV 56
>gnl|CDD|213002 cd12069, SH3_ARHGAP27, Src Homology 3 domain of Rho
GTPase-activating protein 27. Rho GTPase-activating
proteins (RhoGAPs or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP27,
also called CAMGAP1, shows GAP activity towards Rac1 and
Cdc42. It binds the adaptor protein CIN85 and may play a
role in clathrin-mediated endocytosis. It contains SH3,
WW, Pleckstin homology (PH), and RhoGAP domains. SH3
domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 57
Score = 37.9 bits (88), Expect = 0.001
Identities = 19/49 (38%), Positives = 28/49 (57%), Gaps = 2/49 (4%)
Query: 154 YDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV--EVNDRQGFVPAAYVK 200
++YT K R VS+K ++ LL N+ WW V + R ++PA YVK
Sbjct: 8 FEYTGKDGRLVSIKPNERYILLRRTNEHWWHVRRDKGTRPFYIPAKYVK 56
>gnl|CDD|212856 cd11923, SH3_Sorbs2_2, Second Src Homology 3 domain of Sorbin and
SH3 domain containing 2 (Sorbs2), also called
Arg-binding protein 2 (ArgBP2). Sorbs2 or ArgBP2 is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. It regulates actin-dependent
processes including cell adhesion, morphology, and
migration. It is expressed in many tissues and is
abundant in the heart. Like vinexin, it is found in
focal adhesion where it interacts with vinculin and
afadin. It also localizes in epithelial cell stress
fibers and in cardiac muscle cell Z-discs. Sorbs2 has
been implicated to play roles in the signaling of c-Arg,
Akt, and Pyk2. Other interaction partners of Sorbs2
include c-Abl, flotillin, spectrin, dynamin 1/2,
synaptojanin, PTP-PEST, among others. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 57
Score = 38.0 bits (88), Expect = 0.001
Identities = 16/52 (30%), Positives = 32/52 (61%), Gaps = 2/52 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVK 200
+A Y++ + E+S++K D + LL +++W+ K+ +RQG P +YV+
Sbjct: 4 VAKYNFNADTNVELSLRKGDRVVLLKQVDQNWYEGKIPGTNRQGIFPVSYVE 55
>gnl|CDD|212759 cd11825, SH3_PLCgamma, Src homology 3 domain of Phospholipase C
(PLC) gamma. PLC catalyzes the hydrolysis of
phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2]
to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in
response to various receptors. Ins(1,4,5)P3 initiates
the calcium signaling cascade while DAG functions as an
activator of PKC. PLCgamma catalyzes this reaction in
tyrosine kinase-dependent signaling pathways. It is
activated and recruited to its substrate at the
membrane. Vertebrates contain two forms of PLCgamma,
PLCgamma1, which is widely expressed, and PLCgamma2,
which is primarily found in haematopoietic cells.
PLCgamma contains a Pleckstrin homology (PH) domain
followed by an elongation factor (EF) domain, two
catalytic regions of PLC domains that flank two tandem
SH2 domains, followed by a SH3 domain and C2 domain. The
SH3 domain of PLCgamma1 directly interacts with
dynamin-1 and can serve as a guanine nucleotide exchange
factor (GEF). It also interacts with Cbl, inhibiting its
phosphorylation and activity. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 37.7 bits (88), Expect = 0.002
Identities = 18/53 (33%), Positives = 30/53 (56%), Gaps = 1/53 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR-QGFVPAAYVKK 201
V ALYDY + P E+S K ++T + + WW+ + + Q + PA YV++
Sbjct: 2 VKALYDYRAQRPDELSFCKHAIITNVEKEDGGWWRGDYGGKKQKWFPANYVEE 54
>gnl|CDD|212838 cd11905, SH3_Tec, Src Homology 3 domain of Tec (Tyrosine kinase
expressed in hepatocellular carcinoma). Tec is a
cytoplasmic (or nonreceptor) tyr kinase containing Src
homology protein interaction domains (SH3, SH2)
N-terminal to the catalytic tyr kinase domain. It also
contains an N-terminal pleckstrin homology (PH) domain,
which binds the products of PI3K and allows membrane
recruitment and activation, and the Tec homology (TH)
domain, which contains proline-rich and zinc-binding
regions. It is more widely-expressed than other Tec
subfamily kinases. Tec is found in endothelial cells,
both B- and T-cells, and a variety of myeloid cells
including mast cells, erythroid cells, platelets,
macrophages and neutrophils. Tec is a key component of
T-cell receptor (TCR) signaling, and is important in
TCR-stimulated proliferation, IL-2 production and
phospholipase C-gamma1 activation. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 37.9 bits (88), Expect = 0.002
Identities = 15/53 (28%), Positives = 31/53 (58%), Gaps = 1/53 (1%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV-EVNDRQGFVPAAYV 199
E V+A+YD+ P ++ ++ + +L N+ WWK + ++G++P+ YV
Sbjct: 1 EIVVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWWKARDKYGKEGYIPSNYV 53
>gnl|CDD|212696 cd11762, SH3_FCHSD_2, Second Src Homology 3 domain of FCH and
double SH3 domains proteins. This group is composed of
FCH and double SH3 domains protein 1 (FCHSD1) and
FCHSD2. These proteins have a common domain structure
consisting of an N-terminal F-BAR (FES-CIP4 Homology and
Bin/Amphiphysin/Rvs), two SH3, and C-terminal
proline-rich domains. They have only been characterized
in silico and their functions remain unknown. This group
also includes the insect protein, nervous wreck, which
acts as a regulator of synaptic growth signaling. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 37.8 bits (88), Expect = 0.002
Identities = 17/52 (32%), Positives = 27/52 (51%), Gaps = 4/52 (7%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD----WWKVEVNDRQGFVPAAYV 199
ALYDY +S E+S + ++ +L ++ WW+ E N R G P+ V
Sbjct: 4 ALYDYEAQSDEELSFPEGAIIRILRKDDNGVDDGWWEGEFNGRVGVFPSLVV 55
>gnl|CDD|213010 cd12077, SH3_Tks5_2, Second Src homology 3 domain of Tyrosine
kinase substrate with five SH3 domains. Tks5, also
called SH3 and PX domain-containing protein 2A
(SH3PXD2A) or Five SH (FISH), is a scaffolding protein
and Src substrate that is localized in podosomes, which
are electron-dense structures found in Src-transformed
fibroblasts, osteoclasts, macrophages, and some invasive
cancer cells. It binds and regulates some members of the
ADAMs family of transmembrane metalloproteases, which
function as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the second SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 37.7 bits (87), Expect = 0.002
Identities = 14/54 (25%), Positives = 29/54 (53%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
E + + YT + E+ +K + ++ N + WW + ++G+ PA+Y+KK
Sbjct: 1 EKYVTVQPYTSQGKDEIGFEKGVTVEVIQKNLEGWWYIRYLGKEGWAPASYLKK 54
>gnl|CDD|212752 cd11818, SH3_Eve1_5, Fifth Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 50
Score = 37.5 bits (87), Expect = 0.002
Identities = 16/47 (34%), Positives = 28/47 (59%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAY 198
ALYD+T ++ E+S K D++T L S +++W E+ + G P +
Sbjct: 4 ALYDFTGENEDELSFKAGDIITELESIDEEWMSGELRGKSGIFPKNF 50
>gnl|CDD|212833 cd11900, SH3_Nck1_1, First Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The first SH3
domain of Nck1 binds the PxxDY sequence in the CD3e
cytoplasmic tail; this binding inhibits phosphorylation
by Src kinases, resulting in the downregulation of TCR
surface expression. SH3 domains are protein interaction
domains that usually bind to proline-rich ligands with
moderate affinity and selectivity, preferentially a PxxP
motif. They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 59
Score = 37.8 bits (87), Expect = 0.002
Identities = 20/53 (37%), Positives = 37/53 (69%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE-VNDRQGFVPAAYVKK 201
V+A +DY + +E+ +KK++ L LL+ ++K WW+V ++ GFVP+ YV++
Sbjct: 5 VVAKFDYVAQQDQELDIKKNERLWLLD-DSKSWWRVRNAMNKTGFVPSNYVER 56
>gnl|CDD|212862 cd11929, SH3_SH3RF2_1, First Src Homology 3 domain of SH3 domain
containing ring finger 2. SH3RF2 is also called POSHER
(POSH-eliminating RING protein) or HEPP1 (heart protein
phosphatase 1-binding protein). It acts as an
anti-apoptotic regulator of the JNK pathway by binding
to and promoting the degradation of SH3RF1 (or POSH), a
scaffold protein that is required for pro-apoptotic JNK
activation. It may also play a role in cardiac functions
together with protein phosphatase 1. SH3RF2 contains an
N-terminal RING finger domain and three SH3 domains.
This model represents the first SH3 domain, located at
the N-terminal half, of SH3RF2. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 37.2 bits (86), Expect = 0.002
Identities = 15/49 (30%), Positives = 27/49 (55%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL +Y +P ++ K DV+ L +++W+ E+N G PA+ V+
Sbjct: 5 ALCNYRGHNPGDLKFNKGDVILLRRQLDENWYLGEINGVSGIFPASSVE 53
>gnl|CDD|212701 cd11767, SH3_Nck_3, Third Src Homology 3 domain of Nck adaptor
proteins. This group contains the third SH3 domain of
Nck, the first SH3 domain of Caenorhabditis elegans
Ced-2 (Cell death abnormality protein 2), and similar
domains. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The third SH3 domain of Nck
appears to prefer ligands with a PxAPxR motif. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. Ced-2 is a
cell corpse engulfment protein that interacts with Ced-5
in a pathway that regulates the activation of Ced-10, a
Rac small GTPase.
Length = 56
Score = 37.3 bits (87), Expect = 0.003
Identities = 18/54 (33%), Positives = 30/54 (55%), Gaps = 3/54 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLN--SNNKDWWKVEVNDRQ-GFVPAAYVK 200
V+ALY +T ++ E+S +K + L ++ ++ DWWK G VP YV+
Sbjct: 2 VVALYPFTGENDEELSFEKGERLEIIEKPEDDPDWWKARNALGTTGLVPRNYVE 55
>gnl|CDD|223496 COG0419, SbcC, ATPase involved in DNA repair [DNA replication,
recombination, and repair].
Length = 908
Score = 42.1 bits (99), Expect = 0.003
Identities = 95/608 (15%), Positives = 222/608 (36%), Gaps = 71/608 (11%)
Query: 377 AREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPI 436
+E A+ + + + + ED + + A EE++ L+ L + + +
Sbjct: 176 LKEVIKEAKAKIEELEGQLSELL--EDIEDLLEALEEELKELKKLEEIQEEQEEEELEQE 233
Query: 437 DDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLATEESYKDP 496
+ ++ L KE L E ++RL E ++L+ + E E E+L EE +
Sbjct: 234 IEALEERLAELEEEKERLEELKARLLEIESLELEALKIREEELRELERLLEELEEKIERL 293
Query: 497 ANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEF 556
++ + ++ + L A + ++ +L ++L ++ E+ + ++ E
Sbjct: 294 EELEREIEELEEELEGLRALLEELEELLEKLKSLEERL-----EKLEEKLEKLESELEEL 348
Query: 557 LTQKTTEKSLKLKEANKQRTYIAAVKDLPYFSKKDCEQAENWMSAREAFLNAEEVDSKTD 616
+K L + + + ++ +K E+ + A + S
Sbjct: 349 AEEKNELAKLLEERLKELEERLEELE---KELEKALERLKQLEEAIQELKEELAELSAAL 405
Query: 617 N-----VEALIKKHEDFDKAINAHEEKIGALQTLADQL--------IAADHYAAKPI--- 660
+E L K+ E+ ++ + EE+I L+ +QL A P+
Sbjct: 406 EEIQEELEELEKELEELERELEELEEEIKKLEEQINQLESKELMIAELAGAGEKCPVCGQ 465
Query: 661 ---DDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLATEESY 717
++ K++L+ + L E L E+ SR E L++ + ++ + E+L E
Sbjct: 466 ELPEEHEKELLELYELELEELEEELSREKEEAELREEIEELEKELRELEEELIELLELEE 525
Query: 718 KDPANIQSKHQK----------------HQAFEAELAANADRIQSVLAMGQNLIDKRQCV 761
++ K +K Q + EL DR+Q + + + L R
Sbjct: 526 ALKEELEEKLEKLENLLEELEELKEKLQLQQLKEELRQLEDRLQELKELLEELRLLRTRK 585
Query: 762 GSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIAAVKDLDFWLGEVESLLTS 821
E ++ RL + + + L ++ ++ L+
Sbjct: 586 EELEELRERLKELKKKLKELEERLSQLEELLQSLELSEAENEL----------------- 628
Query: 822 EDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQADSLIDSGQFDASSIQEKRQSIN 881
E++ ++L S + +E +QA + +++ + ++ I + + I+ + Q
Sbjct: 629 EEAEEELESELEKLNLQAELEELLQAALEELEEKVEELEAEI---RRELQRIENEEQLEE 685
Query: 882 ERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLK 941
+ E ++ L + E L + +I ++ +K + ++ L+
Sbjct: 686 KL-EELEQLEEELEQLREELEELLKKLGEIEQLIEELESRK-----AELEELKKELEKLE 739
Query: 942 KKHKRLEA 949
K + LE
Sbjct: 740 KALELLEE 747
Score = 41.7 bits (98), Expect = 0.004
Identities = 92/535 (17%), Positives = 196/535 (36%), Gaps = 41/535 (7%)
Query: 199 VKKMEAGLTASQQNLADVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDIT- 257
+ ++E ++ A + E++ LE + + RE+ L E K E+LE++
Sbjct: 241 LAELEEEKERLEELKARLLEIESLEL--EALKIREEELRELERLLEELEEKIERLEELER 298
Query: 258 --VKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDSRRF-----QYFKRDADE 310
+ + LE + E E++L + + EKLE + A
Sbjct: 299 EIEELEEELEGLRALLEELEELLEKLKSLEERLEKLEEKLEKLESELEELAEEKNELAKL 358
Query: 311 LES------WIYEKLQAASDESYKETTNLQAKIQKHQAFEAEVAAHSNAIVVLDNTGNDF 364
LE E+L+ +++ + L+ IQ+ + AE++A I
Sbjct: 359 LEERLKELEERLEELEKELEKALERLKQLEEAIQELKEELAELSAALEEIQEELEELEKE 418
Query: 365 YRDCEQAENWMSAREAFLNA--EEVDSKTDNVEALIKKHEDFD----KAINAHEEKIGAL 418
+ E+ + L +++SK + L E + HE+++ L
Sbjct: 419 LEELERELEELEEEIKKLEEQINQLESKELMIAELAGAGEKCPVCGQELPEEHEKELLEL 478
Query: 419 QTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEME 478
L + + + K + R+++ + + L+E E L + L++ + E
Sbjct: 479 YELELEELEEELSREKEEAELREEIEELEKELRELEEELIELLELEEALKEELEEKLEKL 538
Query: 479 NWIAEKLQLATEESYKDPANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVG 538
+ E+L+ E+ + Q + EL DR+Q + + + L R
Sbjct: 539 ENLLEELEELKEK------------LQLQQLKEELRQLEDRLQELKELLEELRLLRTRKE 586
Query: 539 SEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIA---AVKDLPYFSKKDCEQA 595
E ++ RL + + + L ++ ++ L+ A ++L +K QA
Sbjct: 587 ELEELRERLKELKKKLKELEERLSQLEELLQSLELSEAENELEEAEEELESELEKLNLQA 646
Query: 596 ENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHY 655
E EE++ K + +EA I++ + EEK+ L+ L ++L
Sbjct: 647 EL---EELLQAALEELEEKVEELEAEIRRELQRIENEEQLEEKLEELEQLEEEL-EQLRE 702
Query: 656 AAKPIDDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQ 710
+ + K ++ L+ E E + L++ +E+ + +
Sbjct: 703 ELEELLKKLGEIEQLIEELESRKAELEELKKELEKLEKALELLEELREKLGKAGL 757
Score = 36.7 bits (85), Expect = 0.12
Identities = 78/492 (15%), Positives = 172/492 (34%), Gaps = 51/492 (10%)
Query: 222 LETANDIQERREQVLNRYADFKSE-ARSKREKLEDITVKEVKILETANDIQERREQVLNR 280
LE E + N A E + E+LE++ + K LE ++E +++
Sbjct: 338 LEKLESELEELAEEKNELAKLLEERLKELEERLEELEKELEKALERLKQLEEAIQELKEE 397
Query: 281 YADFKSEARSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKH 340
A+ + +E+LE+ + E+L+ +E +E L+ +I +
Sbjct: 398 LAELSAALEEIQEELEELEKEL--------------EELERELEELEEEIKKLEEQINQL 443
Query: 341 QAFEAEVAA----------------HSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNA 384
++ E +A + +L+ + E+ E
Sbjct: 444 ESKELMIAELAGAGEKCPVCGQELPEEHEKELLELYELELEELEEELSREKEEAELREEI 503
Query: 385 EEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVL 444
EE++ + +E + + + ++ EE L+ L + L + K + K+ L
Sbjct: 504 EELEKELRELEEELIELLELEE--ALKEELEEKLEKLENLLEELEELKEKLQLQQLKEEL 561
Query: 445 DRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKL-----QLATEESYKDPANI 499
+ + L E L +T ++ + E + +KL +L+ E +
Sbjct: 562 RQLEDRLQELKELLEELRLLRTRKEELEELRERLKELKKKLKELEERLSQLEELLQSLEL 621
Query: 500 QSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQ 559
+ + E EL + +++ + + L E ++ ++ + + Q
Sbjct: 622 SEAENELEEAEEELESELEKLNLQAELEELLQAAL------EELEEKVEELEAEIRRELQ 675
Query: 560 KTTEKSLKLKEANKQRTYIAAVKDLPYFSKKDCEQAENWMSAREAFLNAEEVDSKTDNVE 619
+ E +L+E ++ + + + E E E EE++S+ +E
Sbjct: 676 RI-ENEEQLEEKLEELEQLEEELE-----QLREELEELLKKLGEIEQLIEELESRKAELE 729
Query: 620 ALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALI 679
L K+ E +KA+ EE L + + A+ + + L + L + L
Sbjct: 730 ELKKELEKLEKALELLEELREKLGKAGLRADILRNLLAQIEAEANEI-LSKLSLNRYDLR 788
Query: 680 EKRSRLGESQTL 691
R + L
Sbjct: 789 RLTIRKDGNGGL 800
>gnl|CDD|212978 cd12045, SH3_SKAP2, Src Homology 3 domain of Src Kinase-Associated
Phosphoprotein 2. SKAP2, also called SKAP55-Related
(SKAP55R) or SKAP55 homolog (SKAP-HOM or SKAP55-HOM), is
an immune cell-specific adaptor protein that plays an
important role in adhesion and migration of B-cells and
macrophages. Binding partners include ADAP (adhesion and
degranulation-promoting adaptor protein), YopH, SHPS1,
and HPK1. SKAP2 has also been identified as a substrate
for lymphoid-specific tyrosine phosphatase (Lyp), which
has been implicated in a wide variety of autoimmune
diseases. It contains a pleckstrin homology (PH) domain,
a C-terminal SH3 domain, and several tyrosine
phosphorylation sites. Like SKAP1, SKAP2 is expected to
bind primarily to a proline-rich region of ADAP through
its SH3 domain; its degradation may be regulated by
ADAP. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 37.2 bits (86), Expect = 0.003
Identities = 18/49 (36%), Positives = 26/49 (53%), Gaps = 2/49 (4%)
Query: 153 LYDYTEKSPREVSMKKSDVLTLLNS--NNKDWWKVEVNDRQGFVPAAYV 199
L+D T P E+S K+ D + +L+ N WW E+ G VP AY+
Sbjct: 5 LWDCTGDQPDELSFKRGDTIYILSKEYNRFGWWVGEMKGTIGLVPKAYI 53
>gnl|CDD|212894 cd11961, SH3_Abp1_fungi_C2, Second C-terminal Src homology 3 domain
of Fungal Actin-binding protein 1. Abp1 is an adaptor
protein that functions in receptor-mediated endocytosis
and vesicle trafficking. It contains an N-terminal
actin-binding module, the actin-depolymerizing factor
(ADF) homology domain, a central proline-rich region,
and a C-terminal SH3 domain (many yeast Abp1 proteins
contain two C-terminal SH3 domains). Yeast Abp1 also
contains two acidic domains that bind directly to the
Arp2/3 complex, which is required to initiate actin
polymerization. The SH3 domain of yeast Abp1 binds and
localizes the kinases, Ark1p and Prk1p, which facilitate
actin patch disassembly following vesicle
internalization. It also mediates the localization to
the actin patch of the synaptojanin-like protein, Sjl2p,
which plays a key role in endocytosis. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 53
Score = 37.1 bits (86), Expect = 0.003
Identities = 16/51 (31%), Positives = 26/51 (50%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
ALYDY E+S ++D + + + DWW E + +G P+ YV+
Sbjct: 2 AKALYDYDAAEDNELSFFENDKIINIEFVDDDWWLGECHGSRGLFPSNYVE 52
>gnl|CDD|222407 pfam13833, EF_hand_6, EF-hand domain pair.
Length = 53
Score = 36.7 bits (86), Expect = 0.003
Identities = 13/60 (21%), Positives = 24/60 (40%), Gaps = 7/60 (11%)
Query: 1507 KSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNRDGHVSLQEYMAFMISK 1566
+ G + + E K L LG L + E + + D + DG +S +E+ +
Sbjct: 1 EKGLITREELKRALALLGISLS-------EEEVDILFREFDTDGDGKISFEEFCVLLQRL 53
Score = 35.6 bits (83), Expect = 0.009
Identities = 11/29 (37%), Positives = 17/29 (58%)
Query: 1495 EFSMMFKHFDKDKSGKLNQTEFKSCLRAL 1523
E ++F+ FD D GK++ EF L+ L
Sbjct: 25 EVDILFREFDTDGDGKISFEEFCVLLQRL 53
>gnl|CDD|212904 cd11971, SH3_Abi1, Src homology 3 domain of Abl Interactor 1.
Abi1, also called e3B1, is a central regulator of actin
cytoskeletal reorganization through interactions with
many protein complexes. It is part of WAVE, a
nucleation-promoting factor complex, that links Rac 1
activation to actin polymerization causing lamellipodia
protrusion at the plasma membrane. Abi1 interact with
formins to promote protrusions at the leading edge of
motile cells. It also is a target of alpha4 integrin,
regulating membrane protrusions at sites of integrin
engagement. Abi proteins are adaptor proteins serving as
binding partners and substrates of Abl tyrosine kinases.
They are involved in regulating actin cytoskeletal
reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. Abi proteins contain a homeobox homology
domain, a proline-rich region, and a SH3 domain. The SH3
domain of Abi binds to a PxxP motif in Abl. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 36.9 bits (85), Expect = 0.004
Identities = 14/53 (26%), Positives = 29/53 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
V+A+YDY++ E+S + ++ ++ N+ W++ N G P YV+ +
Sbjct: 2 VVAIYDYSKDKDDELSFMEGAIIYVIKKNDDGWYEGVCNGVTGLFPGNYVESI 54
>gnl|CDD|212937 cd12004, SH3_Lyn, Src homology 3 domain of Lyn Protein Tyrosine
Kinase. Lyn is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
Lyn is expressed in B lymphocytes and myeloid cells. It
exhibits both positive and negative regulatory roles in
B cell receptor (BCR) signaling. Lyn, as well as Fyn and
Blk, promotes B cell activation by phosphorylating ITAMs
(immunoreceptor tyr activation motifs) in CD19 and in Ig
components of BCR. It negatively regulates signaling by
its unique ability to phosphorylate ITIMs
(immunoreceptor tyr inhibition motifs) in cell surface
receptors like CD22 and CD5. Lyn also plays an important
role in G-CSF receptor signaling by phosphorylating a
variety of adaptor molecules. Src kinases contain an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 36.9 bits (85), Expect = 0.004
Identities = 18/56 (32%), Positives = 31/56 (55%), Gaps = 3/56 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYVKKME 203
V+ALY Y ++S KK + L ++ + +WWK ++GF+P+ YV K+
Sbjct: 2 VVALYPYDGIHEDDLSFKKGEKLKVIEEHG-EWWKARSLTTKKEGFIPSNYVAKVN 56
>gnl|CDD|212919 cd11986, SH3_Stac3_1, First C-terminal Src homology 3 domain of SH3
and cysteine-rich domain-containing protein 3 (Stac3).
Stac proteins are putative adaptor proteins that contain
a cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac1 and
Stac3 contain two SH3 domains while Stac2 contains a
single SH3 domain at the C-terminus. Stac1 and Stac2
have been found to be expressed differently in mature
dorsal root ganglia (DRG) neurons. Stac1 is mainly
expressed in peptidergic neurons while Stac2 is found in
a subset of nonpeptidergic and all trkB+ neurons. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 36.8 bits (85), Expect = 0.004
Identities = 9/49 (18%), Positives = 29/49 (59%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
+ALY + ++ + +T+++ +N++WW+ ++ ++ G+ P ++
Sbjct: 3 VALYRFKALEKDDLDFHPGERITVIDDSNEEWWRGKIGEKTGYFPMNFI 51
>gnl|CDD|212896 cd11963, SH3_STAM2, Src homology 3 domain of Signal Transducing
Adaptor Molecule 2. STAM2, also called EAST (Epidermal
growth factor receptor-associated protein with SH3 and
TAM domain) or Hbp (Hrs binding protein), is part of the
endosomal sorting complex required for transport
(ESCRT-0). It plays a role in sorting mono-ubiquinated
endosomal cargo for trafficking to the lysosome for
degradation. It is also involved in the regulation of
exocytosis. STAMs were discovered as proteins that are
highly phosphorylated following cytokine and growth
factor stimulation. They function in cytokine signaling
and surface receptor degradation, as well as regulate
Golgi morphology. They associate with many proteins
including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and
UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs,
STAM homology), ubiquitin interacting (UIM), and SH3
domains. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 36.9 bits (85), Expect = 0.004
Identities = 15/50 (30%), Positives = 29/50 (58%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V ALYD+ E++ K +++ +L+ ++ +WWK E + G P+ +V
Sbjct: 4 VRALYDFEAVEDNELTFKHGEIIIVLDDSDANWWKGENHRGVGLFPSNFV 53
>gnl|CDD|213007 cd12074, SH3_Tks5_1, First Src homology 3 domain of Tyrosine kinase
substrate with five SH3 domains. Tks5, also called SH3
and PX domain-containing protein 2A (SH3PXD2A) or Five
SH (FISH), is a scaffolding protein and Src substrate
that is localized in podosomes, which are electron-dense
structures found in Src-transformed fibroblasts,
osteoclasts, macrophages, and some invasive cancer
cells. It binds and regulates some members of the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the first SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 36.6 bits (84), Expect = 0.004
Identities = 17/50 (34%), Positives = 30/50 (60%), Gaps = 2/50 (4%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
V++ Y+ E S E+S++ +V+ ++ N WW V + QG+VPA Y+
Sbjct: 4 VVSNYEKQENS--EISLQAGEVVDVIEKNESGWWFVSTAEEQGWVPATYL 51
>gnl|CDD|212992 cd12059, SH3_MLK1-3, Src Homology 3 domain of Mixed Lineage Kinases
1, 2, and 3. MLKs 1, 2, and 3 are Serine/Threonine
Kinases (STKs), catalyzing the transfer of the
gamma-phosphoryl group from ATP to S/T residues on
protein substrates. MLKs act as mitogen-activated
protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs),
which phosphorylate and activate MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MLKs play roles in immunity and
inflammation, as well as in cell death, proliferation,
and cell cycle regulation. Little is known about the
specific function of MLK1, also called MAP3K9. It is
capable of activating the c-Jun N-terminal kinase
pathway. Mice lacking both MLK1 and MLK2 are viable,
fertile, and have normal life spans. MLK2, also called
MAP3K10, is abundant in brain, skeletal muscle, and
testis. It functions upstream of the MAPK, c-Jun
N-terminal kinase. It binds hippocalcin, a
calcium-sensor protein that protects neurons against
calcium-induced cell death. Both MLK2 and hippocalcin
may be associated with the pathogenesis of Parkinson's
disease. MLK3, also called MAP3K11, is highly expressed
in breast cancer cells and its signaling through c-Jun
N-terminal kinase has been implicated in the migration,
invasion, and malignancy of cancer cells. It also
functions as a negative regulator of Inhibitor of
Nuclear Factor-KappaB Kinase (IKK) and thus, impacts
inflammation and immunity. MLKs contain an SH3 domain, a
catalytic kinase domain, a leucine zipper, a
proline-rich region, and a CRIB domain that mediates
binding to GTP-bound Cdc42 and Rac. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 36.7 bits (85), Expect = 0.004
Identities = 16/53 (30%), Positives = 32/53 (60%), Gaps = 5/53 (9%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLN-----SNNKDWWKVEVNDRQGFVPAAYV 199
A++DY + E+++++ D + +L+ S ++ WW ++NDR G P+ YV
Sbjct: 4 AVFDYEASAEDELTLRRGDRVEVLSKDSAVSGDEGWWTGKINDRVGIFPSNYV 56
>gnl|CDD|212932 cd11999, SH3_PACSIN_like, Src homology 3 domain of an unknown
subfamily of proteins with similarity to Protein kinase
C and Casein kinase Substrate in Neurons (PACSIN)
proteins. PACSINs, also called Synaptic
dynamin-associated proteins (Syndapins), act as
regulators of cytoskeletal and membrane dynamics. They
bind both dynamin and Wiskott-Aldrich syndrome protein
(WASP), and may provide direct links between the actin
cytoskeletal machinery through WASP and
dynamin-dependent endocytosis. Vetebrates harbor three
isoforms with distinct expression patterns and specific
functions. PACSINs contain an N-terminal F-BAR domain
and a C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 36.5 bits (84), Expect = 0.006
Identities = 19/52 (36%), Positives = 26/52 (50%), Gaps = 2/52 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND--RQGFVPAAYV 199
V A+YDYT + P E+S K + L + ++ W V D G PA YV
Sbjct: 4 VRAVYDYTGQEPDELSFKAGEELLKVEDEDEQGWCKGVTDGGAVGLYPANYV 55
>gnl|CDD|212713 cd11779, SH3_Irsp53_BAIAP2L, Src Homology 3 domain of Insulin
Receptor tyrosine kinase Substrate p53, Brain-specific
Angiogenesis Inhibitor 1-Associated Protein 2
(BAIAP2)-Like proteins, and similar proteins. Proteins
in this family include IRSp53, BAIAP2L1, BAIAP2L2, and
similar proteins. They all contain an
Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in
addition to the SH3 domain. IRSp53, also known as
BAIAP2, is a scaffolding protein that takes part in many
signaling pathways including Cdc42-induced filopodia
formation, Rac-mediated lamellipodia extension, and
spine morphogenesis. IRSp53 exists as multiple splicing
variants that differ mainly at the C-termini. BAIAP2L1,
also called IRTKS (Insulin Receptor Tyrosine Kinase
Substrate), serves as a substrate for the insulin
receptor and binds the small GTPase Rac. It plays a role
in regulating the actin cytoskeleton and colocalizes
with F-actin, cortactin, VASP, and vinculin. IRSp53 and
IRTKS also mediate the recruitment of effector proteins
Tir and EspFu, which regulate host cell actin
reorganization, to bacterial attachment sites. BAIAP2L2
co-localizes with clathrin plaques but its function has
not been determined. The SH3 domains of IRSp53 and IRTKS
have been shown to bind the proline-rich C-terminus of
EspFu. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 36.1 bits (84), Expect = 0.006
Identities = 18/55 (32%), Positives = 30/55 (54%), Gaps = 3/55 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW---KVEVNDRQGFVPAAYVKK 201
V ALY + ++S ++ DV+TLL +D W + E + R+G+ P AY +
Sbjct: 3 VKALYPHAAGGETQLSFEEGDVITLLGPEPRDGWHYGENERSGRRGWFPIAYTEP 57
>gnl|CDD|212980 cd12047, SH3_Noxa1_C, C-terminal Src Homology 3 domain of NADPH
oxidase activator 1. Noxa1 is a homolog of p67phox and
is a cytosolic subunit of the nonphagocytic NADPH
oxidase complex Nox1, which catalyzes the transfer of
electrons from NADPH to molecular oxygen to form
superoxide. Noxa1 is co-expressed with Nox1 in colon,
stomach, uterus, prostate, and vascular smooth muscle
cells, consistent with its regulatory role. It does not
interact with p40phox, unlike p67phox, making Nox1
activity independent of p40phox, unlike Nox2. Noxa1
contains TPR, PB1, and C-terminal SH3 domains, but lacks
the central SH3 domain that is present in p67phox. The
TPR domain binds activated GTP-bound Rac. The C-terminal
SH3 domain binds the polyproline motif found at the
C-terminus of Noxo1, a homolog of p47phox. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 35.9 bits (83), Expect = 0.006
Identities = 11/50 (22%), Positives = 27/50 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
++A +DY+ + P ++ + D + +L+ N++W + + R G P +
Sbjct: 2 MVAQHDYSAQGPEDLEFSQGDTIDILSEVNQEWLEGHCDGRIGIFPKCFA 51
>gnl|CDD|233757 TIGR02168, SMC_prok_B, chromosome segregation protein SMC, common
bacterial type. SMC (structural maintenance of
chromosomes) proteins bind DNA and act in organizing and
segregating chromosomes for partition. SMC proteins are
found in bacteria, archaea, and eukaryotes. This family
represents the SMC protein of most bacteria. The smc
gene is often associated with scpB (TIGR00281) and scpA
genes, where scp stands for segregation and condensation
protein. SMC was shown (in Caulobacter crescentus) to be
induced early in S phase but present and bound to DNA
throughout the cell cycle [Cellular processes, Cell
division, DNA metabolism, Chromosome-associated
proteins].
Length = 1179
Score = 40.8 bits (96), Expect = 0.007
Identities = 118/784 (15%), Positives = 287/784 (36%), Gaps = 79/784 (10%)
Query: 222 LETANDIQERREQVLNRYAD-FKSEARSKREKLEDITVKEVKILE---TANDIQERREQV 277
LE + E ++ L + + +E E + +++ E ++Q+ +
Sbjct: 234 LEELREELEELQEELKEAEEELEELTAELQELEEKLEELRLEVSELEEEIEELQKELYAL 293
Query: 278 LNRYADFKSEARSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKI 337
N + + + + RE+L + +R +ELE+ + E+L++ DE +E L+ K+
Sbjct: 294 ANEISRLEQQKQILRERLANL------ERQLEELEAQL-EELESKLDELAEELAELEEKL 346
Query: 338 Q----KHQAFEAEVAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNAEEVDSKTDN 393
+ + ++ EAE+ + L++ R E E + R E + +N
Sbjct: 347 EELKEELESLEAELEELEAELEELES------RLEELEEQLETLRSKVAQLELQIASLNN 400
Query: 394 -VEALIKKHEDFDKAI-NAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLK 451
+E L + E + +E L+ L + + + ++++ +++ + L+
Sbjct: 401 EIERLEARLERLEDRRERLQQEIEELLKKLEEAELKELQAELEELEEELEELQEELERLE 460
Query: 452 EALIEKRSRLGESQT-LQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQAFE 510
EAL E R L E++ L R+ +++ + +Q +
Sbjct: 461 EALEELREELEEAEQALDAAERELAQLQARLDSL------------ERLQENLEGFSEGV 508
Query: 511 AELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLK--- 567
L N + +L + LI + G E A++A L + + + K
Sbjct: 509 KALLKNQSGLSGILGVLSELISVDE--GYEAAIEAALGGRLQA---VVVENLNAAKKAIA 563
Query: 568 -LKEANKQRTYIAAVKDLPYFS--KKDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKK 624
LK+ R + + D E +N + + D K + +
Sbjct: 564 FLKQNELGRVTFLPLDSIKGTEIQGNDREILKNIEGFLGVAKDLVKFDPKLRKALSYLLG 623
Query: 625 H----EDFDKAIN-AHEEKIGA-LQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEAL 678
+D D A+ A + + G + TL L+ +L+R R ++E L
Sbjct: 624 GVLVVDDLDNALELAKKLRPGYRIVTLDGDLVRPGGVITGGSAKTNSSILERRREIEE-L 682
Query: 679 IEKRSRLGE-----SQTLQQFSRDADEMENWIAEKLQLATEES------YKDPANIQSKH 727
EK L E + L + ++ +E+E + + + E S KD A ++++
Sbjct: 683 EEKIEELEEKIAELEKALAELRKELEELEEELEQLRKELEELSRQISALRKDLARLEAEV 742
Query: 728 QKHQA----FEAELAANADRIQSVLAMGQNLIDKRQCVGSE-EAVQARLASIADQWEFLT 782
++ + EL I+ + + ++ +E E ++A++ + ++ + L
Sbjct: 743 EQLEERIAQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKALR 802
Query: 783 QKTTEKS-----LKLKEANKQRTYIAAVKDLDFWLGEVESLL-TSEDSGKDLASVQNLIK 836
+ E L + AN + + + + +E L E+ +D+ S+ I+
Sbjct: 803 EALDELRAELTLLNEEAANLRERLESLERRIAATERRLEDLEEQIEELSEDIESLAAEIE 862
Query: 837 KHQLVEADIQAHDDRIKDMNGQADSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQA 896
+ + + ++++ + + + + + + + + E+ + + + ++ +
Sbjct: 863 ELEELIEELESELEALLNERASLEEALALLRSELEELSEELRELESKRSELRRELEELRE 922
Query: 897 RLNEANTLHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQP 956
+L + + D ++E+ S ++ + L +
Sbjct: 923 KLAQLELRLEGLEVRIDN---LQERLSEEYSLTLEEAEALENKIEDDEEEARRRLKRLEN 979
Query: 957 AIQN 960
I+
Sbjct: 980 KIKE 983
Score = 32.0 bits (73), Expect = 3.2
Identities = 42/283 (14%), Positives = 102/283 (36%), Gaps = 38/283 (13%)
Query: 833 NLIKKHQLVEADIQAHDDRIKDMNGQADSLIDSGQFDASSIQEKRQSINERYERIKNL-- 890
L +K + +E I + + ++ + + L + + ++E + I+ + + L
Sbjct: 681 ELEEKIEELEEKIAELEKALAELRKELEELEEELEQLRKELEELSRQISALRKDLARLEA 740
Query: 891 ----AAHRQARLNEANTLHQFFRDIADEESWIKEKKLLVGSD-------DYGRDLTGVQN 939
R A+L++ T + + +E E++L + ++
Sbjct: 741 EVEQLEERIAQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKA 800
Query: 940 LKKKHKRLEAELASHQPAIQNVQETGEKLMDVSNLGVPEIEQRLKLLNQAWSELK-QLAA 998
L++ L AEL N++E E L + E+RL+ L + EL + +
Sbjct: 801 LREALDELRAELTLLNEEAANLRERLESLER----RIAATERRLEDLEEQIEELSEDIES 856
Query: 999 NRGQKLDESLTYQHFLAKVEEEEAWISEKQQLLSV--EDYGDTMAAVQGLLKKHDAFETD 1056
+ + + +++E + ++ L++ + + ++ L K
Sbjct: 857 LAAEIEELEELIEELESELEALLNERASLEEALALLRSELEELSEELRELESKRSELR-- 914
Query: 1057 FSVHRDRCADICSAGNKLIEAKNHHADSITQRCQQLQLKLDNL 1099
+L E + A R + L++++DNL
Sbjct: 915 ---------------RELEELREKLAQLEL-RLEGLEVRIDNL 941
>gnl|CDD|212809 cd11876, SH3_MLK, Src Homology 3 domain of Mixed Lineage Kinases.
MLKs are Serine/Threonine Kinases (STKs), catalyzing the
transfer of the gamma-phosphoryl group from ATP to S/T
residues on protein substrates. MLKs act as
mitogen-activated protein kinase kinase kinases (MAP3Ks,
MKKKs, MAPKKKs), which phosphorylate and activate MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. MLKs play roles in
immunity and inflammation, as well as in cell death,
proliferation, and cell cycle regulation. Mammals have
four MLKs (MLK1-4), mostly conserved in vertebrates,
which contain an SH3 domain, a catalytic kinase domain,
a leucine zipper, a proline-rich region, and a CRIB
domain that mediates binding to GTP-bound Cdc42 and Rac.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 36.0 bits (83), Expect = 0.007
Identities = 14/56 (25%), Positives = 30/56 (53%), Gaps = 5/56 (8%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLN-----SNNKDWWKVEVNDRQGFVPAAYV 199
AL+DY + E+++++ + +L+ S ++ WW ++ D+ G P+ YV
Sbjct: 1 LWTALFDYDARGEDELTLRRGQPVEVLSKDAAVSGDEGWWTGKIGDKVGIFPSNYV 56
>gnl|CDD|212770 cd11836, SH3_Intersectin_1, First Src homology 3 domain (or SH3A)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The first SH3 domain (or SH3A) of
ITSN1 has been shown to bind many proteins including
Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP,
and CdGAP, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 35.8 bits (83), Expect = 0.008
Identities = 16/52 (30%), Positives = 28/52 (53%), Gaps = 2/52 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNN--KDWWKVEVNDRQGFVPAAYVKK 201
ALY + ++P E+S + D++ + S W E+ + G+ PA YV+K
Sbjct: 4 ALYAFEARNPDEISFQPGDIIQVDESQVAEPGWLAGELKGKTGWFPANYVEK 55
>gnl|CDD|212924 cd11991, SH3_Intersectin1_3, Third Src homology 3 domain (or SH3C)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The third SH3 domain (or SH3C) of ITSN1 has
been shown to bind many proteins including dynamin1/2,
CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK,
among others. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 52
Score = 35.7 bits (82), Expect = 0.008
Identities = 14/50 (28%), Positives = 27/50 (54%), Gaps = 1/50 (2%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
+A+Y Y +++ ++ DV+ + + DWW V D+ G P+ YV+
Sbjct: 3 VAMYTYESNEQGDLTFQQGDVILVTKKDG-DWWTGTVGDKTGVFPSNYVR 51
>gnl|CDD|238131 cd00213, S-100, S-100: S-100 domain, which represents the largest
family within the superfamily of proteins carrying the
Ca-binding EF-hand motif. Note that this S-100 hierarchy
contains only S-100 EF-hand domains, other EF-hands have
been modeled separately. S100 proteins are expressed
exclusively in vertebrates, and are implicated in
intracellular and extracellular regulatory activities.
Intracellularly, S100 proteins act as Ca-signaling or
Ca-buffering proteins. The most unusual characteristic of
certain S100 proteins is their occurrence in
extracellular space, where they act in a cytokine-like
manner through RAGE, the receptor for advanced glycation
products. Structural data suggest that many S100 members
exist within cells as homo- or heterodimers and even
oligomers; oligomerization contributes to their
functional diversification. Upon binding calcium, most
S100 proteins change conformation to a more open
structure exposing a hydrophobic cleft. This hydrophobic
surface represents the interaction site of S100 proteins
with their target proteins. There is experimental
evidence showing that many S100 proteins have multiple
binding partners with diverse mode of interaction with
different targets. In addition to S100 proteins (such as
S100A1,-3,-4,-6,-7,-10,-11,and -13), this group includes
the ''fused'' gene family, a group of calcium binding
S100-related proteins. The ''fused'' gene family includes
multifunctional epidermal differentiation proteins -
profilaggrin, trichohyalin, repetin, hornerin, and
cornulin; functionally these proteins are associated with
keratin intermediate filaments and partially crosslinked
to the cell envelope. These ''fused'' gene proteins
contain N-terminal sequence with two Ca-binding EF-hands
motif, which may be associated with calcium signaling in
epidermal cells and autoprocessing in a calcium-dependent
manner. In contrast to S100 proteins, "fused" gene family
proteins contain an extraordinary high number of almost
perfect peptide repeats with regular array of polar and
charged residues similar to many known cell envelope
proteins.
Length = 88
Score = 36.7 bits (86), Expect = 0.009
Identities = 20/63 (31%), Positives = 32/63 (50%), Gaps = 5/63 (7%)
Query: 1504 DKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPE-FEAILDLVDPNRDGHVSLQEYMAF 1562
+ DK L++ E K L +LP + Q DPE + I+ +D N+DG V QE++
Sbjct: 21 EGDK-DTLSKKELKELLET---ELPNFLKNQKDPEAVDKIMKDLDVNKDGKVDFQEFLVL 76
Query: 1563 MIS 1565
+
Sbjct: 77 IGK 79
>gnl|CDD|212891 cd11958, SH3_RUSC1, Src homology 3 domain of RUN and SH3
domain-containing protein 1. RUSC1, also called NESCA
(New molecule containing SH3 at the carboxy-terminus),
is highly expressed in the brain and is translocated to
the nuclear membrane from the cytoplasm upon stimulation
with neurotrophin. It plays a role in facilitating
neurotrophin-dependent neurite outgrowth. It also
interacts with NEMO (or IKKgamma) and may function in
NEMO-mediated activation of NF-kB. RUSC proteins are
adaptor proteins consisting of RUN, leucine zipper, and
SH3 domains. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 35.6 bits (82), Expect = 0.009
Identities = 17/49 (34%), Positives = 28/49 (57%), Gaps = 1/49 (2%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAY 198
V AL D+ S ++S +K + L +L + ++DW + DR+G VP Y
Sbjct: 2 VRALCDHA-GSESQLSFRKGEELQVLGTVDEDWIRCRRGDREGLVPVGY 49
>gnl|CDD|212800 cd11866, SH3_SKAP1-like, Src Homology 3 domain of Src
Kinase-Associated Phosphoprotein 1 and similar proteins.
This subfamily is composed of SKAP1, SKAP2, and similar
proteins. SKAP1 and SKAP2 are immune cell-specific
adaptor proteins that play roles in T- and B-cell
adhesion, respectively, and are thus important in the
migration of T- and B-cells to sites of inflammation and
for movement during T-cell conjugation with
antigen-presenting cells. Both SKAP1 and SKAP2 bind to
ADAP (adhesion and degranulation-promoting adaptor
protein), among many other binding partners. They
contain a pleckstrin homology (PH) domain, a C-terminal
SH3 domain, and several tyrosine phosphorylation sites.
The SH3 domain of SKAP1 is necessary for its ability to
regulate T-cell conjugation with antigen-presenting
cells and the formation of LFA-1 clusters. SKAP1 binds
primarily to a proline-rich region of ADAP through its
SH3 domain; its degradation is regulated by ADAP. A
secondary interaction occurs via the ADAP SH3 domain and
the RKxxYxxY motif in SKAP1. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 35.5 bits (82), Expect = 0.010
Identities = 15/50 (30%), Positives = 29/50 (58%), Gaps = 2/50 (4%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNS--NNKDWWKVEVNDRQGFVPAAYV 199
L+D + P E+S K+ D++ +++ ++ WW E+N + G VP Y+
Sbjct: 4 GLWDCSGNEPDELSFKRGDLIYIISKEYDSFGWWVGELNGKVGLVPKDYL 53
>gnl|CDD|185503 PTZ00183, PTZ00183, centrin; Provisional.
Length = 158
Score = 38.1 bits (89), Expect = 0.010
Identities = 23/87 (26%), Positives = 41/87 (47%), Gaps = 7/87 (8%)
Query: 1480 IQARNQSGVSEDALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEF 1539
+ + G++ED KE F FD D SG ++ E K +R+LG++ E
Sbjct: 3 KRRSERPGLTEDQKKEIREAFDLFDTDGSGTIDPKELKVAMRSLGFE-------PKKEEI 55
Query: 1540 EAILDLVDPNRDGHVSLQEYMAFMISK 1566
+ ++ VD + G + +E++ M K
Sbjct: 56 KQMIADVDKDGSGKIDFEEFLDIMTKK 82
Score = 32.0 bits (73), Expect = 1.2
Identities = 23/73 (31%), Positives = 35/73 (47%), Gaps = 7/73 (9%)
Query: 1491 DALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNR 1550
D +E F+ FD DK+GK++ K + LG E D E + ++D D N
Sbjct: 87 DPREEILKAFRLFDDDKTGKISLKNLKRVAKELG-------ETITDEELQEMIDEADRNG 139
Query: 1551 DGHVSLQEYMAFM 1563
DG +S +E+ M
Sbjct: 140 DGEISEEEFYRIM 152
>gnl|CDD|212789 cd11855, SH3_Sho1p, Src homology 3 domain of High osmolarity
signaling protein Sho1p. Sho1p (or Sho1), also called
SSU81 (Suppressor of SUA8-1 mutation), is a yeast
membrane protein that regulates adaptation to high salt
conditions by activating the HOG (high-osmolarity
glycerol) pathway. High salt concentrations lead to the
localization to the membrane of the MAPKK Pbs2, which is
then activated by the MAPKK Ste11 and in turn, activates
the MAPK Hog1. Pbs2 is localized to the membrane though
the interaction of its PxxP motif with the SH3 domain of
Sho1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 35.5 bits (82), Expect = 0.010
Identities = 15/51 (29%), Positives = 28/51 (54%), Gaps = 4/51 (7%)
Query: 152 ALYDYT--EKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAYV 199
ALY Y P E+S +K ++L + +++ K WW+ ++ G P+ Y+
Sbjct: 4 ALYPYDASPDDPNELSFEKGEILEVSDTSGK-WWQARKSNGETGICPSNYL 53
>gnl|CDD|212744 cd11810, SH3_RUSC1_like, Src homology 3 domain of RUN and SH3
domain-containing proteins 1 and 2. RUSC1 and RUSC2,
that were originally characterized in silico. They are
adaptor proteins consisting of RUN, leucine zipper, and
SH3 domains. RUSC1, also called NESCA (New molecule
containing SH3 at the carboxy-terminus), is highly
expressed in the brain and is translocated to the
nuclear membrane from the cytoplasm upon stimulation
with neurotrophin. It plays a role in facilitating
neurotrophin-dependent neurite outgrowth. It also
interacts with NEMO (or IKKgamma) and may function in
NEMO-mediated activation of NF-kB. RUSC2, also called
Iporin, is expressed ubiquitously with highest amounts
in the brain and testis. It interacts with the small
GTPase Rab1 and the Golgi matrix protein GM130, and may
function in linking GTPases to certain intracellular
signaling pathways. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 50
Score = 35.5 bits (82), Expect = 0.011
Identities = 13/49 (26%), Positives = 23/49 (46%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAY 198
V AL + ++S +K D+L ++ + DW +G VP +Y
Sbjct: 2 VRALCHHVATDSGQLSFRKGDILRVIARVDDDWLLCTRGSTKGLVPLSY 50
>gnl|CDD|212854 cd11921, SH3_Vinexin_1, First Src Homology 3 domain of Vinexin,
also called Sorbin and SH3 domain containing 3 (Sorbs3).
Vinexin is also called Sorbs3, SH3P3, and
SH3-containing adapter molecule 1 (SCAM-1). It is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. Vinexin was first identified as a
vinculin binding protein; it is co-localized with
vinculin at cell-ECM and cell-cell adhesion sites. There
are several splice variants of vinexin: alpha, which
contains the SoHo and three SH3 domains and displays
tissue-specific expression; and beta, which contains
only the three SH3 domains and is widely expressed.
Vinexin alpha stimulates the accumulation of F-actin at
focal contact sites. Vinexin also promotes keratinocyte
migration and wound healing. The SH3 domains of vinexin
have been reported to bind a number of ligands including
vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 35.3 bits (81), Expect = 0.011
Identities = 15/47 (31%), Positives = 31/47 (65%)
Query: 154 YDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
+D+ +SP+E++++K D++ + +K+W + E + R G PA YV+
Sbjct: 7 FDFQAQSPKELTLQKGDIVYIHKEVDKNWLEGEHHGRVGIFPANYVE 53
>gnl|CDD|213003 cd12070, SH3_ARHGAP12, Src Homology 3 domain of Rho
GTPase-activating protein 12. Rho GTPase-activating
proteins (RhoGAPs or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP12 has
been shown to display GAP activity towards Rac1. It
plays a role in regulating hepatocyte growth factor
(HGF)-driven cell growth and invasiveness. It contains
SH3, WW, Pleckstin homology (PH), and RhoGAP domains.
SH3 domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 60
Score = 35.7 bits (82), Expect = 0.011
Identities = 19/51 (37%), Positives = 31/51 (60%), Gaps = 3/51 (5%)
Query: 154 YDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV--EVNDRQGFVPAAYVKKM 202
YDY K R++ +K+ + L+ N DWW+V + N + +VPA YVK++
Sbjct: 9 YDYEAKD-RKIVIKQGERYILVKKTNDDWWQVKKDENSKPFYVPAQYVKEV 58
>gnl|CDD|212827 cd11894, SH3_FCHSD2_2, Second Src Homology 3 domain of FCH and
double SH3 domains protein 2. FCHSD2 has a domain
structure consisting of an N-terminal F-BAR (FES-CIP4
Homology and Bin/Amphiphysin/Rvs), two SH3, and
C-terminal proline-rich domains. It has only been
characterized in silico and its function is unknown. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 35.3 bits (81), Expect = 0.012
Identities = 19/54 (35%), Positives = 31/54 (57%), Gaps = 3/54 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKD---WWKVEVNDRQGFVPAAYVK 200
V ALYDY ++ E+S + ++ +LN N+D +W+ E N R G P+ V+
Sbjct: 2 VKALYDYEGQTDDELSFPEGAIIRILNKENQDDDGFWEGEFNGRIGVFPSVLVE 55
>gnl|CDD|212993 cd12060, SH3_alphaPIX, Src Homology 3 domain of alpha-Pak
Interactive eXchange factor. Alpha-PIX, also called Rho
guanine nucleotide exchange factor 6 (ARHGEF6) or Cool
(Cloned out of Library)-2, activates small GTPases by
exchanging bound GDP for free GTP. It acts as a GEF for
both Cdc42 and Rac 1, and is localized in dendritic
spines where it regulates spine morphogenesis. It
controls dendritic length and spine density in the
hippocampus. Mutations in the ARHGEF6 gene cause
X-linked intellectual disability in humans. PIX proteins
contain an N-terminal SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains, and a C-terminal leucine-zipper
domain for dimerization. The SH3 domain of PIX binds to
an atypical PxxxPR motif in p21-activated kinases (PAKs)
with high affinity. The binding of PAKs to PIX
facilitate the localization of PAKs to focal complexes
and also localizes PAKs to PIX targets Cdc43 and Rac,
leading to the activation of PAKs. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 35.4 bits (81), Expect = 0.013
Identities = 13/55 (23%), Positives = 33/55 (60%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKMEA 204
V A +++ + + E+S+ K D++ + WW+ +N + G+ P+ YV+++++
Sbjct: 4 VKARFNFKQTNEDELSVCKGDIIYVTRVEEGGWWEGTLNGKTGWFPSNYVREIKS 58
>gnl|CDD|212711 cd11777, SH3_CIP4_Bzz1_like, Src Homology 3 domain of
Cdc42-Interacting Protein 4, Bzz1 and similar domains.
This subfamily is composed of Cdc42-Interacting Protein
4 (CIP4) and similar proteins such as Formin Binding
Protein 17 (FBP17) and FormiN Binding Protein 1-Like
(FNBP1L), as well as yeast Bzz1 (or Bzz1p). CIP4 and
FNBP1L are Cdc42 effectors that bind Wiskott-Aldrich
syndrome protein (WASP) and function in endocytosis.
CIP4 and FBP17 bind to the Fas ligand and may be
implicated in the inflammatory response. CIP4 may also
play a role in phagocytosis. Bzz1 is also a
WASP/Las17-interacting protein involved in endocytosis
and trafficking to the vacuole. It physically interacts
with type I myosins and functions in the early steps of
endocytosis. Members of this subfamily contain an
N-terminal F-BAR (FES-CIP4 Homology and
Bin/Amphiphysin/Rvs) domain as well as at least one
C-terminal SH3 domain. Bzz1 contains a second SH3 domain
at the C-terminus. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 35.3 bits (81), Expect = 0.013
Identities = 17/55 (30%), Positives = 29/55 (52%), Gaps = 3/55 (5%)
Query: 148 ECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR--QGFVPAAYVK 200
EC ALY + S +SM + + L+L+ + D W D +G+VP +Y++
Sbjct: 1 ECK-ALYAFVGSSEGTISMTEGEKLSLVEEDKGDGWTRVRRDTGEEGYVPTSYIR 54
>gnl|CDD|212750 cd11816, SH3_Eve1_3, Third Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 35.1 bits (81), Expect = 0.013
Identities = 15/51 (29%), Positives = 27/51 (52%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
+A +D+ + E+S + DV+TL ++W K E+N + G P +V
Sbjct: 1 RCVARFDFEGEQEDELSFSEGDVITLKEYVGEEWAKGELNGKIGIFPLNFV 51
>gnl|CDD|212922 cd11989, SH3_Intersectin1_2, Second Src homology 3 domain (or SH3B)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The second SH3 domain (or SH3B) of ITSN1 has
been shown to bind WNK and CdGAP. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 35.1 bits (80), Expect = 0.014
Identities = 18/49 (36%), Positives = 29/49 (59%), Gaps = 1/49 (2%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
ALY + K ++ K+DV+T+L + WW EV ++G+ P +YVK
Sbjct: 4 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 51
>gnl|CDD|212755 cd11821, SH3_ASAP, Src homology 3 domain of ArfGAP with SH3 domain,
ankyrin repeat and PH domain containing proteins. ASAPs
are Arf GTPase activating proteins (GAPs) and they
function in regulating cell growth, migration, and
invasion. They contain an N-terminal BAR domain,
followed by a Pleckstrin homology (PH) domain, an Arf
GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3
domain. Vertebrates contain at least three members,
ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not
seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2
show GTPase activating protein (GAP) activity towards
Arf1 and Arf5. They do not show GAP activity towards
Arf6, but are able to mediate Arf6 signaling by binding
stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 34.6 bits (80), Expect = 0.018
Identities = 11/52 (21%), Positives = 26/52 (50%), Gaps = 3/52 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVN---DRQGFVPAAY 198
V ALYD + E++ + +++ + + +WW+ + R+G P ++
Sbjct: 2 VRALYDCQADNDDELTFSEGEIIVVTGEEDDEWWEGHIEGDPSRRGVFPVSF 53
>gnl|CDD|213008 cd12075, SH3_Tks4_1, First Src homology 3 domain of Tyrosine kinase
substrate with four SH3 domains. Tks4, also called SH3
and PX domain-containing protein 2B (SH3PXD2B) or HOFI,
is a Src substrate and scaffolding protein that plays an
important role in the formation of podosomes and
invadopodia, the dynamic actin-rich structures that are
related to cell migration and cancer cell invasion. It
is required in the formation of functional podosomes,
EGF-induced membrane ruffling, and lamellipodia
generation. It plays an important role in cellular
attachment and cell spreading. Tks4 is essential for the
localization of MT1-MMP (membrane-type 1 matrix
metalloproteinase) to invadopodia. It contains an
N-terminal Phox homology (PX) domain and four SH3
domains. This model characterizes the first SH3 domain
of Tks4. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 34.7 bits (79), Expect = 0.019
Identities = 14/46 (30%), Positives = 25/46 (54%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPA 196
+ + +Y ++ E+S+ V+ ++ N WW V D QG+VPA
Sbjct: 4 VVVANYQKQESSEISLYVGQVVDIIEKNESGWWFVSTADEQGWVPA 49
>gnl|CDD|212700 cd11766, SH3_Nck_2, Second Src Homology 3 domain of Nck adaptor
proteins. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The second SH3 domain of Nck
appears to prefer ligands containing the APxxPxR motif.
SH3 domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 34.5 bits (80), Expect = 0.020
Identities = 14/52 (26%), Positives = 30/52 (57%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+ ++Y + E+S++K D + +L ++ WW+ E N + G+ P+ YV +
Sbjct: 2 AVVKFNYEAQREDELSLRKGDRVLVLEKSSDGWWRGECNGQVGWFPSNYVTE 53
>gnl|CDD|212985 cd12052, SH3_CIN85_1, First Src Homology 3 domain (SH3A) of
Cbl-interacting protein of 85 kDa. CIN85, also called
SH3 domain-containing kinase-binding protein 1 (SH3KBP1)
or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor
protein that is involved in the downregulation of
receptor tyrosine kinases by facilitating endocytosis
through interaction with endophilin-associated ubiquitin
ligase Cbl proteins. It is also important in many other
cellular processes including vesicle-mediated transport,
cytoskeletal remodelling, apoptosis, cell adhesion and
migration, and viral infection, among others. CIN85
exists as multiple variants from alternative splicing;
the main variant contains three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CIN85 to bind
various protein partners and assemble complexes that
have been implicated in many different functions. This
alignment model represents the first SH3 domain (SH3A)
of CIN85; SH3A binds to internal proline-rich motifs
within the proline-rich region. This intramolecular
interaction serves as a regulatory mechanism to keep
CIN85 in a closed conformation, preventing the
recruitment of other proteins. SH3A has also been shown
to bind ubiquitin and to an atypical PXXXPR motif at the
C-terminus of Cbl and the cytoplasmic end of the cell
adhesion protein CD2. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 34.5 bits (79), Expect = 0.021
Identities = 13/51 (25%), Positives = 29/51 (56%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
I +DY + E+++ D++T + ++ WW+ E+ R+G P +V++
Sbjct: 3 IVEFDYKAQHEDELTITVGDIITKIKKDDGGWWEGEIKGRRGLFPDNFVRE 53
>gnl|CDD|212923 cd11990, SH3_Intersectin2_2, Second Src homology 3 domain (or SH3B)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The second SH3 domain (or
SH3B) of ITSN2 is expected to bind protein partners,
similar to ITSN1 which has been shown to bind WNK and
CdGAP. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 34.2 bits (78), Expect = 0.025
Identities = 17/49 (34%), Positives = 30/49 (61%), Gaps = 1/49 (2%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
AL +T K ++ K+D++T+L ++WW EV+ +G+ P +YVK
Sbjct: 4 ALCSWTAKKDNHLNFSKNDIITVL-EQQENWWFGEVHGGRGWFPKSYVK 51
>gnl|CDD|212994 cd12061, SH3_betaPIX, Src Homology 3 domain of beta-Pak Interactive
eXchange factor. Beta-PIX, also called Rho guanine
nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned
out of Library)-1, activates small GTPases by exchanging
bound GDP for free GTP. It acts as a GEF for both Cdc42
and Rac 1, and plays important roles in regulating
neuroendocrine exocytosis, focal adhesion maturation,
cell migration, synaptic vesicle localization, and
insulin secretion. PIX proteins contain an N-terminal
SH3 domain followed by RhoGEF (also called
Dbl-homologous or DH) and Pleckstrin Homology (PH)
domains, and a C-terminal leucine-zipper domain for
dimerization. The SH3 domain of PIX binds to an atypical
PxxxPR motif in p21-activated kinases (PAKs) with high
affinity. The binding of PAKs to PIX facilitate the
localization of PAKs to focal complexes and also
localizes PAKs to PIX targets Cdc43 and Rac, leading to
the activation of PAKs. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 34.3 bits (78), Expect = 0.033
Identities = 15/53 (28%), Positives = 29/53 (54%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
V A +++ + + E+S K DV+ + WW+ N R G+ P+ YV+++
Sbjct: 2 VRAKFNFQQTNEDELSFSKGDVIHVTRVEEGGWWEGTHNGRTGWFPSNYVREI 54
>gnl|CDD|238009 cd00052, EH, Eps15 homology domain; found in proteins implicated in
endocytosis, vesicle transport, and signal transduction.
The alignment contains a pair of EF-hand motifs,
typically one of them is canonical and binds to Ca2+,
while the other may not bind to Ca2+. A hydrophobic
binding pocket is formed by residues from both EF-hand
motifs. The EH domain binds to proteins containing NPF
(class I), [WF]W or SWG (class II), or H[TS]F (class III)
sequence motifs.
Length = 67
Score = 34.5 bits (80), Expect = 0.034
Identities = 17/64 (26%), Positives = 28/64 (43%), Gaps = 9/64 (14%)
Query: 1496 FSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDPNRDGHVS 1555
+ +F+ D D G ++ E + L G LP Q I DL D ++DG +
Sbjct: 1 YDQIFRSLDPDGDGLISGDEARPFLGKSG--LPRSVLAQ-------IWDLADTDKDGKLD 51
Query: 1556 LQEY 1559
+E+
Sbjct: 52 KEEF 55
>gnl|CDD|224117 COG1196, Smc, Chromosome segregation ATPases [Cell division and
chromosome partitioning].
Length = 1163
Score = 38.5 bits (90), Expect = 0.038
Identities = 51/356 (14%), Positives = 148/356 (41%), Gaps = 28/356 (7%)
Query: 619 EALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEAL 678
+ L ++ + + + EE++ +L+ L +D +++ + L+ L
Sbjct: 670 KELEEELAELEAQLEKLEEELKSLKNELRSL-----------EDLLEELRRQLEELERQL 718
Query: 679 IEKRSRL-GESQTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQAFEAEL 737
E + L + L+Q +E+E + E L+ EE + ++ + + + A+L
Sbjct: 719 EELKRELAALEEELEQLQSRLEELEEELEE-LEEELEELQERLEELEEELESLEEALAKL 777
Query: 738 AANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANK 797
+ ++ Q +++ + E + RL ++ + E L Q+ +++E +
Sbjct: 778 KEEIEELEEKRQALQEELEELE--EELEEAERRLDALERELESLEQRRERLEQEIEELEE 835
Query: 798 QR-TYIAAVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMN 856
+ + +L+ L E+E L E+ ++L ++ ++ +E +++ ++ +++
Sbjct: 836 EIEELEEKLDELEEELEELEKEL--EELKEELEELEAEKEE---LEDELKELEEEKEELE 890
Query: 857 GQADSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFRDIADEES 916
+ L I++ R+ + E +++ L E ++ + E
Sbjct: 891 EELRELESELAELKEEIEKLRERLEELEAKLERLEVELPELEEELEEEYEDTLETELER- 949
Query: 917 WIKEKKLLVGSDDYG----RDLTGVQNLKKKHKRLEAELASHQPAIQNVQETGEKL 968
+ ++L + G R + + ++++++ L+++ + A + + E E+L
Sbjct: 950 --EIERLEEEIEALGPVNLRAIEEYEEVEERYEELKSQREDLEEAKEKLLEVIEEL 1003
Score = 38.2 bits (89), Expect = 0.049
Identities = 59/371 (15%), Positives = 141/371 (38%), Gaps = 39/371 (10%)
Query: 288 ARSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQK----HQAF 343
+R+KR L R + + + ELE+ EKL+ E +L+ +++ +
Sbjct: 656 SRNKRSSLAQKRELKELEEELAELEA-QLEKLEEELKSLKNELRSLEDLLEELRRQLEEL 714
Query: 344 EAEVAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHED 403
E ++ + L+ E+ E EE++ + + ++ +++ E+
Sbjct: 715 ERQLEELKRELAALEEELEQLQSRLEELEE---------ELEELEEELEELQERLEELEE 765
Query: 404 FDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGE 463
+ + EE + L+ ++L + +++ +++ + R L E S
Sbjct: 766 ---ELESLEEALAKLKEEIEELEEKRQALQEELEELEEELEEAERRLDALERELESLEQR 822
Query: 464 SQTLQQFSRDA-DEMENWIAEK--LQLATEESYKDPANIQSKHQKHQAFEAELAANADRI 520
+ L+Q + +E+E + L+ EE K+ ++ + ++ +A + EL +
Sbjct: 823 RERLEQEIEELEEEIEELEEKLDELEEELEELEKELEELKEELEELEAEKEELEDELKEL 882
Query: 521 QSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIAA 580
+ + + + +++ LA + ++ E L ++ E KL+ +
Sbjct: 883 EEEKEELEEELRE---------LESELAELKEEIEKLRERLEELEAKLERLEVELP-ELE 932
Query: 581 VKDLPYFSKKDCEQAENWMSAREAFLNA---------EEVDSKTDNVEALIKKHEDFDKA 631
+ + + E + E + A EE + + E L + ED ++A
Sbjct: 933 EELEEEYEDTLETELEREIERLEEEIEALGPVNLRAIEEYEEVEERYEELKSQREDLEEA 992
Query: 632 INAHEEKIGAL 642
E I L
Sbjct: 993 KEKLLEVIEEL 1003
Score = 37.4 bits (87), Expect = 0.072
Identities = 48/291 (16%), Positives = 122/291 (41%), Gaps = 30/291 (10%)
Query: 186 EVNDRQGFVPAAYVKKMEAGLTASQQNLADVKE------VKILETANDIQERREQVLNRY 239
E+ + + + A +K++ L ++ L+ ++E ++ E +I+E + ++
Sbjct: 221 ELRELELALLLAKLKELRKELEELEEELSRLEEELEELQEELEEAEKEIEELKSEL---- 276
Query: 240 ADFKSEARSKREKLEDITVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDSR 299
+ + E +E+L ++ + ++ + ++ER E++ N + + +EK+E +
Sbjct: 277 EELREELEELQEELLELKEEIEELEGEISLLRERLEELENELEELEERLEELKEKIEALK 336
Query: 300 R-FQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKHQAFEAEVAAHSNAIVVLD 358
+ + +ELE + E +A + K + L+ + +A E+A + +
Sbjct: 337 EELEERETLLEELEQLLAELEEAKEELEEKLSALLEELEELFEALREELAELEAELAEIR 396
Query: 359 NTGNDFYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGAL 418
N + E++S + +E L ++ ED + + E ++ L
Sbjct: 397 NELEE-------------------LKREIESLEERLERLSERLEDLKEELKELEAELEEL 437
Query: 419 QTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEKRSRLGESQTLQQ 469
QT ++L + +++ R ++ + R L E E + E +L+
Sbjct: 438 QTELEELNEELEELEEQLEELRDRLKELERELAELQEELQRLEKELSSLEA 488
Score = 37.0 bits (86), Expect = 0.11
Identities = 48/312 (15%), Positives = 119/312 (38%), Gaps = 26/312 (8%)
Query: 214 ADVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDITVKEVKILETANDIQER 273
A+++E+++ ++E R+++ + E E++ E +I E ++++E
Sbjct: 220 AELRELELALLLAKLKELRKELEELEEELSRLEEELEELQEELEEAEKEIEELKSELEEL 279
Query: 274 REQVLNRYADFKSEARSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESYKETTNL 333
RE+ L + E + + E+LE + E+L+ +E + L
Sbjct: 280 REE-LEELQEELLELKEEIEELEGEISL-------------LRERLEELENELEELEERL 325
Query: 334 QAKIQKHQAFEAEVAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNAEEVDSKTDN 393
+ +K +A + E+ + L+ + E+ E +SA L E ++ +
Sbjct: 326 EELKEKIEALKEELEERETLLEELEQLLAELEEAKEELEEKLSALLEEL-EELFEALREE 384
Query: 394 VEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEA 453
+ L + + + + +I +L+ ++L + + + ++ + L+E
Sbjct: 385 LAELEAELAEIRNELEELKREIESLEERLERLSERLEDLKEELKELEAELEELQTELEEL 444
Query: 454 LIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQAFEAEL 513
E + + L+ ++ + + E+LQ ++ + +A L
Sbjct: 445 NEELEELEEQLEELRDRLKELERELAELQEELQ-----------RLEKELSSLEARLDRL 493
Query: 514 AANADRIQSVLA 525
A Q V A
Sbjct: 494 EAEQRASQGVRA 505
Score = 33.9 bits (78), Expect = 0.85
Identities = 37/230 (16%), Positives = 95/230 (41%), Gaps = 15/230 (6%)
Query: 228 IQERREQVLNRYADFKSEARSKREKLEDITVKEVKILETANDIQERREQVLNRYADFKSE 287
++E EQ+ +R + + E E+LE++ + ++ E ++E ++ + + +
Sbjct: 728 LEEELEQLQSRLEELEEELEELEEELEELQERLEELEEELESLEEALAKLKEEIEELEEK 787
Query: 288 ARSKREKLEDSRR-FQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKHQAFEAE 346
++ +E+LE+ + +R D LE + E L+ + +E L+ +I++ E +
Sbjct: 788 RQALQEELEELEEELEEAERRLDALEREL-ESLEQRRERLEQEIEELEEEIEEL---EEK 843
Query: 347 VAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNA---------EEVDSKTDNVEAL 397
+ + L+ + + E+ E E L EE+ + L
Sbjct: 844 LDELEEELEELEKELEELKEELEELEAEKEELEDELKELEEEKEELEEELRELESELAEL 903
Query: 398 IKKHEDFDKAINAHEEKIGALQT-LADQLIAADHYAAKPIDDKRKQVLDR 446
++ E + + E K+ L+ L + + ++ + ++ ++R
Sbjct: 904 KEEIEKLRERLEELEAKLERLEVELPELEEELEEEYEDTLETELEREIER 953
Score = 31.6 bits (72), Expect = 4.5
Identities = 115/846 (13%), Positives = 300/846 (35%), Gaps = 118/846 (13%)
Query: 3 QIVHLWESLATATEKKGNKLQE----ASQQQGFNRTIEDIELWLSEIEGQLMSEDYGKDL 58
++ L + L E+ +E + + + IE+++ L E+ +L
Sbjct: 233 KLKELRKELEELEEELSRLEEELEELQEELEEAEKEIEELKSELEELREELEELQ----- 287
Query: 59 TSVQNLQKKHALLEADVASHLDRIESVKAATEQFLEHYGKDEDSSEALLKKHEALVSDLE 118
+ L+++ LE +++ +R+E ++ E+ E + ++ EAL ++ E + LE
Sbjct: 288 EELLELKEEIEELEGEISLLRERLEELENELEELEERLEELKEKIEALKEELEERETLLE 347
Query: 119 AFGNTILGLREQAQSCRQQETPVIDVTGKECVIALYDYTEKSPREVSMKKSDVLTLLNSN 178
+ L E + +++ + E + L++ + E+ + +++ L
Sbjct: 348 ELEQLLAELEEAKEE-LEEKLSAL----LEELEELFEALREELAELEAELAEIRNELEEL 402
Query: 179 NKDWWKVEVNDRQGFVPAAYVKKMEAGLTASQQNLADVKEVKILETANDIQERREQVLNR 238
+ + + + ++ E D++E +++
Sbjct: 403 KR-----------------------------EIESLEERLERLSERLEDLKEELKELEAE 433
Query: 239 YADFKSEARSKREKLEDITVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLE-- 296
+ ++E E+LE++ + ++ + +++ ++ + E S +L+
Sbjct: 434 LEELQTELEELNEELEELEEQLEELRDRLKELERELAELQEELQRLEKELSSLEARLDRL 493
Query: 297 --DSRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKHQAFEAEVAAHSNAI 354
+ R Q + + LES + ++ ++ K + A EA + A+
Sbjct: 494 EAEQRASQGVRAVLEALESGLPGVYGPVAE-------LIKVKEKYETALEAALGNRLQAV 546
Query: 355 VVLDNTGN----DFYRDCEQAE------NWMSAREAFLNAEEVDSKTDNVEALIKKHEDF 404
VV + +F ++ + + + + + LI +
Sbjct: 547 VVENEEVAKKAIEFLKENKAGRATFLPLDRIKPLRSLKSDAA-PGFLGLASDLIDFDPKY 605
Query: 405 DKAINAHEEKIGALQTLADQLIAADHYAAKPI-------------------DDKRKQVLD 445
+ A+ + L A K +KR +
Sbjct: 606 EPAVRFVLGDTLVVDDLEQARRLARKLRIKYRIVTLDGDLVEPSGSITGGSRNKRSSLAQ 665
Query: 446 RWRL--LKEALIEKRSRLGE-SQTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSK 502
+ L L+E L E ++L + + L+ + +E+ + E + E + ++
Sbjct: 666 KRELKELEEELAELEAQLEKLEEELKSLKNELRSLEDLLEELRRQLEELERQ----LEEL 721
Query: 503 HQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSE-EAVQARLASIADQWEFLTQKT 561
++ A E EL R++ + + L ++ + + E ++ L S+ + L ++
Sbjct: 722 KRELAALEEELEQLQSRLEELEEELEELEEELEELQERLEELEEELESLEEALAKLKEEI 781
Query: 562 TEKSLKLKEANKQRTYIAAVKDLPYFSKKDCEQAENWMSAREAFLNAEEVDSKTDNVEAL 621
E K + ++ ++ E+ R L E++S E L
Sbjct: 782 EELEEKRQALQEEL--------------EELEEELEEAERRLDAL-ERELESLEQRRERL 826
Query: 622 IKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALIEK 681
++ E+ ++ I EEK+ L+ ++L + +++ + + L++ L E
Sbjct: 827 EQEIEELEEEIEELEEKLDELEEELEELEKELEELKEELEELEAEKEE----LEDELKEL 882
Query: 682 RSRLGE-SQTLQQFSRDADEMENWIAEKLQLATE-ESYKDPANIQSKHQKHQAFEAELAA 739
E + L++ + E++ I + + E E+ + ++ + + E
Sbjct: 883 EEEKEELEEELRELESELAELKEEIEKLRERLEELEAKLERLEVELPELEEELEEEYEDT 942
Query: 740 NADRIQSVLAMGQNLIDKRQCVGSE-----EAVQARLASIADQWEFLTQKTTEKSLKLKE 794
++ + + I+ V E V+ R + Q E L + + ++E
Sbjct: 943 LETELEREIERLEEEIEALGPVNLRAIEEYEEVEERYEELKSQREDLEEAKEKLLEVIEE 1002
Query: 795 ANKQRT 800
+K++
Sbjct: 1003 LDKEKR 1008
Score = 31.2 bits (71), Expect = 5.3
Identities = 49/282 (17%), Positives = 125/282 (44%), Gaps = 15/282 (5%)
Query: 717 YKDPANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDK-RQCVGSEEAVQARLASIA 775
++ + ++ ++ + E ELA +++ + ++L ++ R E ++ +L +
Sbjct: 656 SRNKRSSLAQKRELKELEEELAELEAQLEKLEEELKSLKNELRSLEDLLEELRRQLEELE 715
Query: 776 DQWEFLTQKTTEKSLKLKEANKQRT--------YIAAVKDLDFWLGEVESLLTS-EDSGK 826
Q E L ++ +L++ + +++L L E+E L S E++
Sbjct: 716 RQLEELKRELAALEEELEQLQSRLEELEEELEELEEELEELQERLEELEEELESLEEALA 775
Query: 827 DL-ASVQNLIKKHQLVEADIQAHDDRIKDMNGQADSLIDSGQFDASSIQEKRQSINERYE 885
L ++ L +K Q ++ +++ ++ +++ + D+L + + Q I E E
Sbjct: 776 KLKEEIEELEEKRQALQEELEELEEELEEAERRLDALERELESLEQRRERLEQEIEELEE 835
Query: 886 RIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHK 945
I+ L E L + ++ +E ++ +K + D+ + L+++ +
Sbjct: 836 EIEELEEKLDELEEELEELEKELEELKEELEELEAEKEEL-EDELKELEEEKEELEEELR 894
Query: 946 RLEAELASHQPAIQNVQE---TGEKLMDVSNLGVPEIEQRLK 984
LE+ELA + I+ ++E E ++ + +PE+E+ L+
Sbjct: 895 ELESELAELKEEIEKLRERLEELEAKLERLEVELPELEEELE 936
Score = 31.2 bits (71), Expect = 5.3
Identities = 44/279 (15%), Positives = 110/279 (39%), Gaps = 34/279 (12%)
Query: 784 KTTEKSLKLKEANKQRTYIAAVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEA 843
+ E+ +LK ++ + L E+E L E+ + ++ L ++ + E
Sbjct: 210 EKAERYQELKAELRELELALLLAKLKELRKELEELE--EELSRLEEELEELQEELEEAEK 267
Query: 844 DIQAHDDRIKDMNGQADSL------------------------IDSGQFDASSIQEKRQS 879
+I+ ++++ + + L ++ + + ++E+ +
Sbjct: 268 EIEELKSELEELREELEELQEELLELKEEIEELEGEISLLRERLEELENELEELEERLEE 327
Query: 880 INERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQN 939
+ E+ E +K R+ L E L + +E E+KL ++ ++
Sbjct: 328 LKEKIEALKEELEERETLLEELEQLLAELEEAKEEL----EEKLSALLEELEELFEALRE 383
Query: 940 ----LKKKHKRLEAELASHQPAIQNVQETGEKLMDVSNLGVPEIEQRLKLLNQAWSELKQ 995
L+ + + EL + I++++E E+L + E+++ L + +EL++
Sbjct: 384 ELAELEAELAEIRNELEELKREIESLEERLERLSERLEDLKEELKELEAELEELQTELEE 443
Query: 996 LAANRGQKLDESLTYQHFLAKVEEEEAWISEKQQLLSVE 1034
L + ++ + L ++E E A + E+ Q L E
Sbjct: 444 LNEELEELEEQLEELRDRLKELERELAELQEELQRLEKE 482
>gnl|CDD|212736 cd11802, SH3_Endophilin_B, Src homology 3 domain of Endophilin-B.
Endophilins play roles in synaptic vesicle formation,
virus budding, mitochondrial morphology maintenance,
receptor-mediated endocytosis inhibition, and endosomal
sorting. They are classified into two types, A and B.
Vertebrates contain two endophilin-B isoforms.
Endophilin-B proteins are cytoplasmic proteins expressed
mainly in the heart, placenta, and skeletal muscle.
Endophilins contain an N-terminal N-BAR domain (BAR
domain with an additional N-terminal amphipathic helix),
followed by a variable region containing proline
clusters, and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 33.8 bits (78), Expect = 0.038
Identities = 16/49 (32%), Positives = 27/49 (55%), Gaps = 2/49 (4%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTL--LNSNNKDWWKVEVNDRQGFVPAAY 198
LYDY + E+S+ +V+T+ L ++D+ E ++G VP AY
Sbjct: 4 VLYDYDAEDSTELSLLADEVITVYELPGMDEDYMMGERGSQRGKVPVAY 52
>gnl|CDD|212723 cd11789, SH3_Nebulin_family_C, C-terminal Src Homology 3 domain of
the Nebulin family of proteins. Nebulin family proteins
contain multiple nebulin repeats, and may contain an
N-terminal LIM domain and/or a C-terminal SH3 domain.
They have molecular weights ranging from 34 to 900 kD,
depending on the number of nebulin repeats, and they all
bind actin. They are involved in the regulation of actin
filament architecture and function as stabilizers and
scaffolds for cytoskeletal structures with which they
associate, such as long actin filaments or focal
adhesions. Nebulin family proteins that contain a
C-terminal SH3 domain include the giant filamentous
protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2,
also called LIM-nebulette, is an alternatively spliced
variant of nebulette. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 33.8 bits (78), Expect = 0.039
Identities = 16/54 (29%), Positives = 26/54 (48%), Gaps = 2/54 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVKK 201
A+YDY EVS ++ DV+ + + W V+ + G +PA YV+
Sbjct: 2 YRAMYDYAAADDDEVSFQEGDVIINVEIIDDGWMEGTVQRTGQSGMLPANYVEL 55
>gnl|CDD|185504 PTZ00184, PTZ00184, calmodulin; Provisional.
Length = 149
Score = 36.3 bits (84), Expect = 0.042
Identities = 23/78 (29%), Positives = 41/78 (52%), Gaps = 10/78 (12%)
Query: 1489 SEDALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVDP 1548
SE+ +KE FK FD+D +G ++ E + + LG E D E + ++ D
Sbjct: 82 SEEEIKE---AFKVFDRDGNGFISAAELRHVMTNLG-------EKLTDEEVDEMIREADV 131
Query: 1549 NRDGHVSLQEYMAFMISK 1566
+ DG ++ +E++ M+SK
Sbjct: 132 DGDGQINYEEFVKMMMSK 149
Score = 34.0 bits (78), Expect = 0.22
Identities = 21/85 (24%), Positives = 41/85 (48%), Gaps = 7/85 (8%)
Query: 1488 VSEDALKEFSMMFKHFDKDKSGKLNQTEFKSCLRALGYDLPMVEEGQPDPEFEAILDLVD 1547
++E+ + EF F FDKD G + E + +R+LG + + E + +++ VD
Sbjct: 5 LTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLG-------QNPTEAELQDMINEVD 57
Query: 1548 PNRDGHVSLQEYMAFMISKETRQNS 1572
+ +G + E++ M K +S
Sbjct: 58 ADGNGTIDFPEFLTLMARKMKDTDS 82
>gnl|CDD|212950 cd12017, SH3_Tks_3, Third Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the third SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 33.6 bits (77), Expect = 0.043
Identities = 10/38 (26%), Positives = 26/38 (68%)
Query: 164 VSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+S +K + +++ N WW V+++ ++G+ P++Y++K
Sbjct: 16 ISFQKGQKVEVIDKNPSGWWYVKIDGKEGWAPSSYIEK 53
>gnl|CDD|212945 cd12012, SH3_RIM-BP_2, Second Src homology 3 domain of
Rab3-interacting molecules (RIMs) binding proteins.
RIMs binding proteins (RBPs, RIM-BPs) associate with
calcium channels present in photoreceptors, neurons, and
hair cells; they interact simultaneously with specific
calcium channel subunits, and active zone proteins, RIM1
and RIM2. RIMs are part of the matrix at the presynaptic
active zone and are associated with synaptic vesicles
through their interaction with the small GTPase Rab3.
RIM-BPs play a role in regulating synaptic transmission
by serving as adaptors and linking calcium channels with
the synaptic vesicle release machinery. RIM-BPs contain
three SH3 domains and two to three fibronectin III
repeats. Invertebrates contain one, while vertebrates
contain at least two RIM-BPs, RIM-BP1 and RIM-BP2.
RIM-BP1 is also called peripheral-type benzodiazapine
receptor associated protein 1 (PRAX-1). Mammals contain
a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are
predominantly expressed in the brain where they display
overlapping but distinct expression patterns, while
RIM-BP3 is almost exclusively expressed in the testis
and is essential in spermiogenesis. The SH3 domains of
RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and
L-type (alpha1D) and N-type (alpha1B) calcium channel
subunits. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity. They play versatile and diverse roles
in the cell including the regulation of enzymes,
changing the subcellular localization of signaling
pathway components, and mediating the formation of
multiprotein complex assemblies.
Length = 62
Score = 33.8 bits (78), Expect = 0.045
Identities = 16/61 (26%), Positives = 28/61 (45%), Gaps = 9/61 (14%)
Query: 149 CVIALYDYTEK--SPR------EVSMKKSDVLTLLNSNNKD-WWKVEVNDRQGFVPAAYV 199
+AL+DY SP E+ K+ ++ + + D ++ E+N R+G VP V
Sbjct: 1 LFVALFDYDPLTMSPNPDAAEEELPFKEGQLIKVYGDKDADGFYLGEINGRRGLVPCNMV 60
Query: 200 K 200
Sbjct: 61 S 61
>gnl|CDD|212850 cd11917, SH3_Sorbs2_3, Third (or C-terminal) Src Homology 3 domain
of Sorbin and SH3 domain containing 2 (Sorbs2), also
called Arg-binding protein 2 (ArgBP2). Sorbs2 or ArgBP2
is an adaptor protein containing one sorbin homology
(SoHo) and three SH3 domains. It regulates
actin-dependent processes including cell adhesion,
morphology, and migration. It is expressed in many
tissues and is abundant in the heart. Like vinexin, it
is found in focal adhesion where it interacts with
vinculin and afadin. It also localizes in epithelial
cell stress fibers and in cardiac muscle cell Z-discs.
Sorbs2 has been implicated to play roles in the
signaling of c-Arg, Akt, and Pyk2. Other interaction
partners of Sorbs2 include c-Abl, flotillin, spectrin,
dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 33.8 bits (77), Expect = 0.054
Identities = 18/61 (29%), Positives = 32/61 (52%), Gaps = 4/61 (6%)
Query: 145 TGKECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGF---VPAAYVKK 201
G E ALY+Y ++ E+ +++ DV+ ++ + D W V + R F P YVK+
Sbjct: 2 GGGEPFQALYNYMPRNEDELELREGDVIDVMEKCD-DGWFVGTSRRTKFFGTFPGNYVKR 60
Query: 202 M 202
+
Sbjct: 61 L 61
>gnl|CDD|212857 cd11924, SH3_Vinexin_2, Second Src Homology 3 domain of Vinexin,
also called Sorbin and SH3 domain containing 3 (Sorbs3).
Vinexin is also called Sorbs3, SH3P3, and
SH3-containing adapter molecule 1 (SCAM-1). It is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. Vinexin was first identified as a
vinculin binding protein; it is co-localized with
vinculin at cell-ECM and cell-cell adhesion sites. There
are several splice variants of vinexin: alpha, which
contains the SoHo and three SH3 domains and displays
tissue-specific expression; and beta, which contains
only the three SH3 domains and is widely expressed.
Vinexin alpha stimulates the accumulation of F-actin at
focal contact sites. Vinexin also promotes keratinocyte
migration and wound healing. The SH3 domains of vinexin
have been reported to bind a number of ligands including
vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 33.4 bits (76), Expect = 0.057
Identities = 15/52 (28%), Positives = 29/52 (55%), Gaps = 2/52 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVK 200
+A Y + E+S +K + + L+ N++W+ ++ RQG PA+YV+
Sbjct: 4 VAQYTFKGDLEVELSFRKGEHICLIRKVNENWYEGRITGTGRQGIFPASYVQ 55
>gnl|CDD|212837 cd11904, SH3_Nck1_3, Third Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The third SH3
domain of Nck appears to prefer ligands with a PxAPxR
motif. SH3 domains are protein interaction domains that
usually bind to proline-rich ligands with moderate
affinity and selectivity, preferentially a PxxP motif.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 33.5 bits (76), Expect = 0.059
Identities = 17/53 (32%), Positives = 31/53 (58%), Gaps = 3/53 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLN--SNNKDWWKV-EVNDRQGFVPAAYV 199
V ALY ++ + E++ +K +V+ ++ N+ +WWK + N + G VP YV
Sbjct: 3 VQALYPFSSSNDEELNFEKGEVMDVIEKPENDPEWWKCRKANGQVGLVPKNYV 55
>gnl|CDD|212987 cd12054, SH3_CD2AP_2, Second Src Homology 3 domain (SH3B) of
CD2-associated protein. CD2AP, also called CMS (Cas
ligand with Multiple SH3 domains) or METS1
(Mesenchyme-to-Epithelium Transition protein with SH3
domains), is a cytosolic adaptor protein that plays a
role in regulating the cytoskeleton. It is critical in
cell-to-cell union necessary for kidney function. It
also stabilizes the contact between a T cell and
antigen-presenting cells. It is primarily expressed in
podocytes at the cytoplasmic face of the slit diaphragm
and serves as a linker anchoring podocin and nephrin to
the actin cytoskeleton. CD2AP contains three SH3
domains, a proline-rich region, and a C-terminal
coiled-coil domain. All of these domains enable CD2AP to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
This alignment model represents the second SH3 domain
(SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR
is the core binding motif) distinct from the c-Cbl/SH3A
binding site. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 33.4 bits (76), Expect = 0.062
Identities = 13/56 (23%), Positives = 32/56 (57%), Gaps = 1/56 (1%)
Query: 147 KECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
++C + L++Y ++ E+ +K D++ + + WW +N + G P+ +VK++
Sbjct: 1 RQCKV-LFEYVPQNEDELELKVGDIIDINEEVEEGWWSGTLNGKSGLFPSNFVKEL 55
>gnl|CDD|213012 cd12079, SH3_Tks5_3, Third Src homology 3 domain of Tyrosine kinase
substrate with five SH3 domains. Tks5, also called SH3
and PX domain-containing protein 2A (SH3PXD2A) or Five
SH (FISH), is a scaffolding protein and Src substrate
that is localized in podosomes, which are electron-dense
structures found in Src-transformed fibroblasts,
osteoclasts, macrophages, and some invasive cancer
cells. It binds and regulates some members of the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the third SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 33.1 bits (75), Expect = 0.073
Identities = 10/35 (28%), Positives = 24/35 (68%), Gaps = 3/35 (8%)
Query: 167 KKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
+K++V+ N+ WW V++ +++G+ P++Y+ K
Sbjct: 23 QKAEVI---EKNSGGWWYVQIGEKEGWAPSSYIDK 54
>gnl|CDD|213011 cd12078, SH3_Tks4_3, Third Src homology 3 domain of Tyrosine kinase
substrate with four SH3 domains. Tks4, also called SH3
and PX domain-containing protein 2B (SH3PXD2B) or HOFI,
is a Src substrate and scaffolding protein that plays an
important role in the formation of podosomes and
invadopodia, the dynamic actin-rich structures that are
related to cell migration and cancer cell invasion. It
is required in the formation of functional podosomes,
EGF-induced membrane ruffling, and lamellipodia
generation. It plays an important role in cellular
attachment and cell spreading. Tks4 is essential for the
localization of MT1-MMP (membrane-type 1 matrix
metalloproteinase) to invadopodia. It contains an
N-terminal Phox homology (PX) domain and four SH3
domains. This model characterizes the third SH3 domain
of Tks4. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 33.1 bits (75), Expect = 0.074
Identities = 11/47 (23%), Positives = 25/47 (53%)
Query: 155 DYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
D+ P +S + + ++ N WW +++ D++G+ PA ++ K
Sbjct: 7 DFQTTIPDGISFQAGLKVEVIEKNLSGWWYIQIEDKEGWAPATFIDK 53
>gnl|CDD|212753 cd11819, SH3_Cortactin_like, Src homology 3 domain of Cortactin and
related proteins. This subfamily includes cortactin,
Abp1 (actin-binding protein 1), hematopoietic lineage
cell-specific protein 1 (HS1), and similar proteins.
These proteins are involved in regulating actin dynamics
through direct or indirect interaction with the Arp2/3
complex, which is required to initiate actin
polymerization. They all contain at least one C-terminal
SH3 domain. Cortactin and HS1 bind Arp2/3 and actin
through an N-terminal region that contains an acidic
domain and several copies of a repeat domain found in
cortactin and HS1. Abp1 binds actin via an N-terminal
actin-depolymerizing factor (ADF) homology domain. Yeast
Abp1 binds Arp2/3 directly through two acidic domains.
Mammalian Abp1 does not directly interact with Arp2/3;
instead, it regulates actin dynamics indirectly by
interacting with dynamin and WASP family proteins. The
C-terminal region of these proteins acts as an adaptor
or scaffold that can connect membrane trafficking and
signaling proteins that bind the SH3 domain within the
actin network. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 33.1 bits (76), Expect = 0.081
Identities = 16/53 (30%), Positives = 26/53 (49%), Gaps = 1/53 (1%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAYVK 200
ALYDY E+S + D++T + ++ WW ++G PA YV+
Sbjct: 1 RAKALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGVNAKGQKGLFPANYVE 53
>gnl|CDD|225962 COG3428, COG3428, Predicted membrane protein [Function unknown].
Length = 494
Score = 36.6 bits (85), Expect = 0.100
Identities = 19/90 (21%), Positives = 37/90 (41%), Gaps = 8/90 (8%)
Query: 202 MEAGLTASQQNLADVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDITVKEV 261
AGL A L ++ +ETA E +++ R F+ A + +++ + E+
Sbjct: 100 TTAGLVARLFGLVVLR----IETAGGGGEAEAELVEREIAFELAALVREARVKKLDALEL 155
Query: 262 KILET----ANDIQERREQVLNRYADFKSE 287
+T ++ R + + RY K E
Sbjct: 156 AEADTPEEEVAEVLARSQSSVLRYPMNKGE 185
>gnl|CDD|212780 cd11846, SH3_Srms, Src homology 3 domain of Srms Protein Tyrosine
Kinase. Src-related kinase lacking C-terminal
regulatory tyrosine and N-terminal myristoylation sites
(Srms) is a cytoplasmic (or non-receptor) PTK with
limited homology to Src kinases. Src kinases in general
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr; they are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). However, Srms lacks the
N-terminal myristoylation sites. Src proteins are
involved in signaling pathways that regulate cytokine
and growth factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. The SH3
domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 32.8 bits (75), Expect = 0.10
Identities = 19/55 (34%), Positives = 31/55 (56%), Gaps = 4/55 (7%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW---KVEVNDRQGFVPAAYVKK 201
ALYD+T +S E+S+++ D L ++ D+ K+ N G VPA+YV +
Sbjct: 2 FTALYDFTARSTHELSVEQGDKLCVI-EEEGDYIFARKLTGNPESGLVPASYVAQ 55
>gnl|CDD|212866 cd11933, SH3_Nebulin_C, C-terminal Src Homology 3 domain of
Nebulin. Nebulin is a giant filamentous protein
(600-900 kD) that is expressed abundantly in skeletal
muscle. It binds to actin thin filaments and regulates
its assembly and function. Nebulin was thought to be
part of a molecular ruler complex that is critical in
determining the lengths of actin thin filaments in
skeletal muscle since its length, which varies due to
alternative splicing, correlates with the length of thin
filaments in various muscle types. Recent studies
indicate that nebulin regulates thin filament length by
stabilizing the filaments and preventing
depolymerization. Mutations in nebulin can cause
nemaline myopathy, characterized by muscle weakness
which can be severe and can lead to neonatal lethality.
Nebulin contains an N-terminal LIM domain, many nebulin
repeats/super repeats, and a C-terminal SH3 domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 32.7 bits (74), Expect = 0.10
Identities = 16/53 (30%), Positives = 27/53 (50%), Gaps = 2/53 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVKKM 202
A+YDY EVS K D + + + ++ W V+ + G +PA YV+ +
Sbjct: 6 AMYDYRAADDDEVSFKDGDTIVNVQTIDEGWMYGTVQRTGKTGMLPANYVEAI 58
>gnl|CDD|212712 cd11778, SH3_Bzz1_2, Second Src Homology 3 domain of Bzz1 and
similar domains. Bzz1 (or Bzz1p) is a
WASP/Las17-interacting protein involved in endocytosis
and trafficking to the vacuole. It physically interacts
with type I myosins and functions in the early steps of
endocytosis. Together with other proteins, it induces
membrane scission in yeast. Bzz1 contains an N-terminal
F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a
central coiled-coil, and two C-terminal SH3 domains.
This model represents the second C-terminal SH3 domain.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 32.5 bits (74), Expect = 0.10
Identities = 15/50 (30%), Positives = 27/50 (54%), Gaps = 1/50 (2%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKV-EVNDRQGFVPAAY 198
V ALYDY + E+S++ D + ++ ++ W E+N +G P +Y
Sbjct: 2 VEALYDYEAQGDDEISIRVGDRIAVIRGDDGSGWTYGEINGVKGLFPTSY 51
>gnl|CDD|212855 cd11922, SH3_Sorbs1_2, Second Src Homology 3 domain of Sorbin and
SH3 domain containing 1 (Sorbs1), also called ponsin.
Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl
associated protein). It is an adaptor protein containing
one sorbin homology (SoHo) and three SH3 domains. It
binds Cbl and plays a major role in regulating the
insulin signaling pathway by enhancing insulin-induced
phosphorylation of Cbl. Sorbs1, like vinexin, localizes
at cell-ECM and cell-cell adhesion sites where it binds
vinculin, paxillin, and afadin. It may function in the
control of cell motility. Other interaction partners of
Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7,
filamin C, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 58
Score = 32.7 bits (74), Expect = 0.11
Identities = 15/52 (28%), Positives = 29/52 (55%), Gaps = 2/52 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVK 200
IA +++ + E+S +K + +TLL +++W+ ++ RQG P YV
Sbjct: 4 IAKFNFNGDTQVEMSFRKGERITLLRQVDENWYEGRIPGTSRQGIFPITYVD 55
>gnl|CDD|212718 cd11784, SH3_SH3RF2_3, Third Src Homology 3 domain of SH3 domain
containing ring finger 2. SH3RF2 is also called POSHER
(POSH-eliminating RING protein) or HEPP1 (heart protein
phosphatase 1-binding protein). It acts as an
anti-apoptotic regulator of the JNK pathway by binding
to and promoting the degradation of SH3RF1 (or POSH), a
scaffold protein that is required for pro-apoptotic JNK
activation. It may also play a role in cardiac functions
together with protein phosphatase 1. SH3RF2 contains an
N-terminal RING finger domain and three SH3 domains.
This model represents the third SH3 domain, located in
the middle, of SH3RF2. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 32.1 bits (73), Expect = 0.16
Identities = 14/51 (27%), Positives = 26/51 (50%), Gaps = 2/51 (3%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWK--VEVNDRQGFVPAAYV 199
+AL+ Y+ P E+ ++K + + +L + W + V R G P+ YV
Sbjct: 3 VALHSYSAHRPEELELQKGEGVRVLGKFQEGWLRGLSLVTGRVGIFPSNYV 53
>gnl|CDD|212847 cd11914, SH3_BAIAP2L2, Src Homology 3 domain of Brain-specific
Angiogenesis Inhibitor 1-Associated Protein 2-Like 2.
BAIAP2L2 co-localizes with clathrin plaques but its
function has not been determined. It contains an
N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR)
domain, an SH3 domain, and a WASP homology 2 (WH2)
actin-binding motif at the C-terminus. The related
proteins, BAIAP2L1 and IRSp53, function as regulators of
membrane dynamics and the actin cytoskeleton. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 32.1 bits (73), Expect = 0.17
Identities = 18/57 (31%), Positives = 31/57 (54%), Gaps = 4/57 (7%)
Query: 150 VIALYDYTEKS-PREVSMKKSDVLTLLNSNNKDWW---KVEVNDRQGFVPAAYVKKM 202
V A+ + S P + + D++T+L ++ W K+E + RQG+ P AYVK +
Sbjct: 3 VRAIVSHPAGSNPTLLRFNRGDIITVLVPEARNGWLYGKLEGSSRQGWFPEAYVKAL 59
>gnl|CDD|212828 cd11895, SH3_FCHSD1_2, Second Src Homology 3 domain of FCH and
double SH3 domains protein 1. FCHSD1 has a domain
structure consisting of an N-terminal F-BAR (FES-CIP4
Homology and Bin/Amphiphysin/Rvs), two SH3, and
C-terminal proline-rich domains. It has only been
characterized in silico and its function is unknown. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 31.9 bits (72), Expect = 0.21
Identities = 17/55 (30%), Positives = 30/55 (54%), Gaps = 4/55 (7%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLL----NSNNKDWWKVEVNDRQGFVPAAYVKKM 202
ALY YT +SP E+S + ++ LL + + +W+ E R G P+ V+++
Sbjct: 4 ALYSYTGQSPEELSFPEGALIRLLPRAQDGVDDGFWRGEFGGRVGVFPSLLVEEL 58
>gnl|CDD|212815 cd11882, SH3_GRAF-like, Src Homology 3 domain of GTPase Regulator
Associated with Focal adhesion kinase and similar
proteins. This subfamily is composed of Rho GTPase
activating proteins (GAPs) with similarity to GRAF.
Members contain an N-terminal BAR domain, followed by a
Pleckstrin homology (PH) domain, a Rho GAP domain, and a
C-terminal SH3 domain. Although vertebrates harbor four
Rho GAPs in the GRAF subfamily including GRAF, GRAF2,
GRAF3, and Oligophrenin-1 (OPHN1), only three are
included in this model. OPHN1 contains the BAR, PH and
GAP domains, but not the C-terminal SH3 domain. GRAF and
GRAF2 show GAP activity towards RhoA and Cdc42. GRAF
influences Rho-mediated cytoskeletal rearrangements and
binds focal adhesion kinase. GRAF2 regulates
caspase-activated p21-activated protein kinase-2. The
SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of
the small GTPase Rho. SH3 domains bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs; they play a role in the
regulation of enzymes by intramolecular interactions,
changing the subcellular localization of signal pathway
components and mediate multiprotein complex assemblies.
Length = 54
Score = 31.9 bits (73), Expect = 0.23
Identities = 14/52 (26%), Positives = 25/52 (48%), Gaps = 1/52 (1%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLN-SNNKDWWKVEVNDRQGFVPAAYVK 200
ALY + E+S + ++T + S+ W + +N R G +P YV+
Sbjct: 2 ARALYACKAEDESELSFEPGQIITNVQPSDEPGWLEGTLNGRTGLIPENYVE 53
>gnl|CDD|212852 cd11919, SH3_Sorbs1_1, First Src Homology 3 domain of Sorbin and
SH3 domain containing 1 (Sorbs1), also called ponsin.
Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl
associated protein). It is an adaptor protein containing
one sorbin homology (SoHo) and three SH3 domains. It
binds Cbl and plays a major role in regulating the
insulin signaling pathway by enhancing insulin-induced
phosphorylation of Cbl. Sorbs1, like vinexin, localizes
at cell-ECM and cell-cell adhesion sites where it binds
vinculin, paxillin, and afadin. It may function in the
control of cell motility. Other interaction partners of
Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7,
filamin C, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 31.9 bits (72), Expect = 0.23
Identities = 11/49 (22%), Positives = 31/49 (63%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
A +D+ ++ +E+ ++K D++ + +++W++ E + R G P +Y++
Sbjct: 5 AKFDFKAQTLKELPLQKGDIVYIYKQIDQNWYEGEHHGRVGIFPRSYIE 53
>gnl|CDD|212977 cd12044, SH3_SKAP1, Src Homology 3 domain of Src Kinase-Associated
Phosphoprotein 1. SKAP1, also called SKAP55 (Src
kinase-associated protein of 55kDa), is an immune
cell-specific adaptor protein that plays an important
role in T-cell adhesion, migration, and integrin
clustering. It is expressed exclusively in
T-lymphocytes, mast cells, and macrophages. Binding
partners include ADAP (adhesion and
degranulation-promoting adaptor protein), Fyn, Riam,
RapL, and RasGRP. It contains a pleckstrin homology (PH)
domain, a C-terminal SH3 domain, and several tyrosine
phosphorylation sites. The SH3 domain of SKAP1 is
necessary for its ability to regulate T-cell conjugation
with antigen-presenting cells and the formation of LFA-1
clusters. SKAP1 binds primarily to a proline-rich region
of ADAP through its SH3 domain; its degradation is
regulated by ADAP. A secondary interaction occurs via
the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 31.8 bits (72), Expect = 0.23
Identities = 16/50 (32%), Positives = 27/50 (54%), Gaps = 2/50 (4%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNS--NNKDWWKVEVNDRQGFVPAAYV 199
L+D +P E+S ++ D++ +L+ N WW E+N G VP Y+
Sbjct: 4 GLWDCFGDNPDELSFQRGDLIYILSKEYNMYGWWVGELNGIVGIVPKDYL 53
>gnl|CDD|212867 cd11934, SH3_Lasp1_C, C-terminal Src Homology 3 domain of LIM and
SH3 domain protein 1. Lasp1 is a cytoplasmic protein
that binds focal adhesion proteins and is involved in
cell signaling, migration, and proliferation. It is
overexpressed in several cancer cells including breast,
ovarian, bladder, and liver. In cancer cells, it can be
found in the nucleus; its degree of nuclear localization
correlates with tumor size and poor prognosis. Lasp1 is
a 36kD protein containing an N-terminal LIM domain, two
nebulin repeats, and a C-terminal SH3 domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 31.9 bits (72), Expect = 0.24
Identities = 16/53 (30%), Positives = 24/53 (45%), Gaps = 2/53 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVKKM 202
A+YDY EVS + D + + + W VE G +PA YV+ +
Sbjct: 7 AVYDYNAADEDEVSFQDGDTIVNVQQIDDGWMYGTVERTGDTGMLPANYVEAI 59
>gnl|CDD|212771 cd11837, SH3_Intersectin_2, Second Src homology 3 domain (or SH3B)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The second SH3 domain (or SH3B) of
ITSN1 has been shown to bind WNK and CdGAP. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 31.6 bits (72), Expect = 0.25
Identities = 17/52 (32%), Positives = 26/52 (50%), Gaps = 2/52 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVND-RQGFVPAAYVK 200
ALY + K +S K D++T+L WW E+ +G+ P +YVK
Sbjct: 2 ATALYPWRAKKENHLSFAKGDIITVLEQQE-MWWFGELEGGEEGWFPKSYVK 52
>gnl|CDD|212868 cd11935, SH3_Nebulette_C, C-terminal Src Homology 3 domain of
Nebulette and LIM-nebulette (or Lasp2). Nebulette is a
cardiac-specific protein that localizes to the Z-disc.
It interacts with tropomyosin and is important in
stabilizing actin thin filaments in cardiac muscles.
Polymorphisms in the nebulette gene are associated with
dilated cardiomyopathy, with some mutations resulting in
severe heart failure. Nebulette is a 107kD protein that
contains an N-terminal acidic region, multiple nebulin
repeats, and a C-terminal SH3 domain. LIM-nebulette,
also called Lasp2 (LIM and SH3 domain protein 2), is an
alternatively spliced variant of nebulette. Although it
shares a gene with nebulette, Lasp2 is not transcribed
from a muscle-specific promoter, giving rise to its
multiple tissue expression pattern with highest amounts
in the brain. It can crosslink actin filaments and it
affects cell spreading. Lasp2 is a 34kD protein
containing an N-terminal LIM domain, three nebulin
repeats, and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 31.9 bits (72), Expect = 0.25
Identities = 15/51 (29%), Positives = 27/51 (52%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVK 200
A+YDY+ + EVS + D + + ++ W V+ R G +PA Y++
Sbjct: 5 AMYDYSAQDEDEVSFRDGDYIVNVQPIDEGWMYGTVQRTGRTGMLPANYIE 55
>gnl|CDD|212903 cd11970, SH3_PLCgamma1, Src homology 3 domain of Phospholipase C
(PLC) gamma 1. PLCgamma1 is widely expressed and is
essential in growth and development. It is activated by
the TrkA receptor tyrosine kinase and functions as a key
regulator of cell differentiation. It is also the
predominant PLCgamma in T cells and is required for T
cell and NK cell function. PLCs catalyze the hydrolysis
of phosphatidylinositol (4,5)-bisphosphate
[PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and
diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium
signaling cascade while DAG functions as an activator of
PKC. PLCgamma contains a Pleckstrin homology (PH) domain
followed by an elongation factor (EF) domain, two
catalytic regions of PLC domains that flank two tandem
SH2 domains, followed by a SH3 domain and C2 domain. The
SH3 domain of PLCgamma1 directly interacts with
dynamin-1 and can serve as a guanine nucleotide exchange
factor (GEF). It also interacts with Cbl, inhibiting its
phosphorylation and activity. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 60
Score = 31.9 bits (72), Expect = 0.26
Identities = 15/59 (25%), Positives = 31/59 (52%), Gaps = 1/59 (1%)
Query: 145 TGKECVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEV-NDRQGFVPAAYVKKM 202
T K V AL+DY + E++ K+ ++ + WW+ + +Q + P+ YV+++
Sbjct: 1 TFKCAVKALFDYKAQREDELTFTKNAIIQNVEKQEGGWWRGDYGGKKQLWFPSNYVEEI 59
>gnl|CDD|212834 cd11901, SH3_Nck1_2, Second Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The second SH3
domain of Nck appears to prefer ligands containing the
APxxPxR motif. SH3 domains are protein interaction
domains that usually bind to proline-rich ligands with
moderate affinity and selectivity, preferentially a PxxP
motif. They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 31.5 bits (71), Expect = 0.29
Identities = 12/46 (26%), Positives = 25/46 (54%)
Query: 154 YDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
++YT + E+S+ K + ++ + WW+ N + G+ P+ YV
Sbjct: 8 FNYTAEREDELSLVKGTKVIVMEKCSDGWWRGSYNGQVGWFPSNYV 53
>gnl|CDD|212749 cd11815, SH3_Eve1_2, Second Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 31.0 bits (70), Expect = 0.41
Identities = 11/50 (22%), Positives = 28/50 (56%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
+ L+D+ + ++S+ +++ LL + +W++ + + G PA +VK
Sbjct: 3 VVLHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYRGKCKNTTGIFPANHVK 52
>gnl|CDD|212804 cd11871, SH3_p67phox_N, N-terminal (or first) Src Homology 3 domain
of the p67phox subunit of NADPH oxidase. p67phox, also
called Neutrophil cytosol factor 2 (NCF-2), is a
cytosolic subunit of the phagocytic NADPH oxidase
complex (also called Nox2 or gp91phox) which plays a
crucial role in the cellular response to bacterial
infection. NADPH oxidase catalyzes the transfer of
electrons from NADPH to oxygen during phagocytosis
forming superoxide and reactive oxygen species. p67phox
plays a regulatory role and contains N-terminal TPR,
first SH3 (or N-terminal or central SH3), PB1, and
C-terminal SH3 domains. It binds, via its C-terminal SH3
domain, to a proline-rich region of p47phox and upon
activation, this complex assembles with flavocytochrome
b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP
translocates to the membrane and interacts with the TPR
domain of p67phox, which leads to the activation of
NADPH oxidase. The PB1 domain of p67phox binds to its
partner PB1 domain in p40phox, and this facilitates the
assembly of p47phox-p67phox at the membrane. The
N-terminal SH3 domain increases the affinity of p67phox
for the oxidase complex. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 30.6 bits (69), Expect = 0.48
Identities = 10/50 (20%), Positives = 27/50 (54%)
Query: 153 LYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKKM 202
LY++ ++ E+ + +++ +L +W V N ++G VP +++ +
Sbjct: 5 LYEFVPETKEELQVLPGNIVFVLKKGTDNWATVVFNGKKGLVPCNFLEPV 54
>gnl|CDD|205692 pfam13514, AAA_27, AAA domain. This domain is found in a number of
double-strand DNA break proteins. This domain contains a
P-loop motif.
Length = 1118
Score = 34.7 bits (80), Expect = 0.50
Identities = 43/231 (18%), Positives = 89/231 (38%), Gaps = 20/231 (8%)
Query: 204 AGLTASQQNLADVKEVKILETANDIQERREQVLNRYADFKSEARSKREKLEDITVKEVKI 263
AG + + L ++KE L+ A+D+++R + A F+ E + E + +
Sbjct: 733 AGALDALELLQNIKE--KLQAADDLRQRIAAMERDLARFEEEVEALAEAVAPEMLG---- 786
Query: 264 LETANDIQERREQVLNRYADFKSEARSKREKLEDSR-RFQYFKRDADELESWIYEKLQAA 322
A++ +Q L R D + A E++E++ DE E+ + L+AA
Sbjct: 787 -TPADETARALKQRLKRARDTAAAAEKLAEEIEEAEKEVSEAAAALDEAEARLTALLRAA 845
Query: 323 SDESYKETTNLQAKIQKHQAFEAEVAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFL 382
+ +E + ++ +AA +V G + A A
Sbjct: 846 RCTTIEELLAAVERSDTYRELRKRIAA-LERTLVRAGGGLS-----------LEALVAEA 893
Query: 383 NAEEVDSKTDNVEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAA 433
A + D +E L + E+ ++ +N +++GA + ++ A
Sbjct: 894 AALDPDELPARLEELARDIEELEEELNELAQEVGAAKQELARMDGGSTAAE 944
Score = 31.3 bits (71), Expect = 4.9
Identities = 50/359 (13%), Positives = 110/359 (30%), Gaps = 52/359 (14%)
Query: 634 AHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRL---------LKEALIEKRSR 684
A+EE + + LAD+L+ + ++++ R RL L+ AL R
Sbjct: 531 AYEEAVESADQLADRLLREAQLVGELQSLRQQEEAARRRLEQLEKELEVLELALAALREA 590
Query: 685 LGESQTLQQFSRDADEMENWIAE--KLQLATEESYKDPANIQSKHQ---KHQAFEAELAA 739
EME+W+AE + +K A + + + +A
Sbjct: 591 WQAQWAAAGLPLTPAEMEDWLAERATAREQVRAYFKARAELDALLDRRARLRAALRAALK 650
Query: 740 NADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLKLKEANKQR 799
+ + + L RQ + E AR AS+ ++ + E++L+ E
Sbjct: 651 AVAIVLPGEELAELLELARQLLEEAEKQAARKASLDER-----LRDAERALEEAEERHDE 705
Query: 800 TYIAAVKDLDFWLGEVESLLTSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQA 859
A + W + + A + ++ Q ++ +QA DD
Sbjct: 706 AQSALEAWQEQWYDALLEAGLGGRASPAGA--LDALELLQNIKEKLQAADD--------- 754
Query: 860 DSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIK 919
++++ ++ R + ++ +
Sbjct: 755 -------------LRQRIAAMERDLARFEEEVEA---------LAEAVAPEMLGTPADET 792
Query: 920 EKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQNVQETGEKLMDVSNLGVPE 978
+ L + L ++ + E E++ A+ + L+ + E
Sbjct: 793 ARALKQRLKRARDTAAAAEKLAEEIEEAEKEVSEAAAALDEAEARLTALLRAARCTTIE 851
>gnl|CDD|212829 cd11896, SH3_SNX33, Src Homology 3 domain of Sorting Nexin 33.
SNX33 interacts with Wiskott-Aldrich syndrome protein
(WASP) and plays a role in the maintenance of cell shape
and cell cycle progression. It modulates the shedding
and endocytosis of cellular prion protein (PrP(c)) and
amyloid precursor protein (APP). SNXs are Phox homology
(PX) domain containing proteins that are involved in
regulating membrane traffic and protein sorting in the
endosomal system. SNX33 also contains BAR and SH3
domains. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 30.7 bits (69), Expect = 0.50
Identities = 15/51 (29%), Positives = 30/51 (58%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR--QGFVPAAYVK 200
ALY + ++ E+++++++ L + + N+ D W N R G PA+YV+
Sbjct: 4 ALYSFQSENKEEINIQENEELVIFSENSLDGWLQGQNSRGETGLFPASYVE 54
>gnl|CDD|212817 cd11884, SH3_MYO15, Src Homology 3 domain of Myosin XV. This
subfamily is composed of proteins with similarity to
Myosin XVa. Myosin XVa is an unconventional myosin that
is critical for the normal growth of mechanosensory
stereocilia of inner ear hair cells. Mutations in the
myosin XVa gene are associated with nonsyndromic hearing
loss. Myosin XVa contains a unique N-terminal extension
followed by a motor domain, light chain-binding IQ
motifs, and a tail consisting of a pair of MyTH4-FERM
tandems separated by a SH3 domain, and a PDZ domain. SH3
domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 56
Score = 30.8 bits (70), Expect = 0.60
Identities = 15/53 (28%), Positives = 23/53 (43%), Gaps = 3/53 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSN---NKDWWKVEVNDRQGFVPAAYV 199
V+A+ Y + +S K DV+ LL + W ++ R G P YV
Sbjct: 2 VVAVRAYITRDQTLLSFHKGDVIKLLPKEGPLDPGWLFGTLDGRSGAFPKEYV 54
>gnl|CDD|212899 cd11966, SH3_ASAP2, Src homology 3 domain of ArfGAP with SH3
domain, ankyrin repeat and PH domain containing protein
2. ASAP2 is also called DDEF2 (Development and
Differentiation Enhancing Factor 2), AMAP2, centaurin
beta-3, or PAG3. It mediates the functions of Arf
GTPases vial dual mechanisms: it exhibits GTPase
activating protein (GAP) activity towards class I (Arf1)
and II (Arf5) Arfs; and it binds class III Arfs
(GTP-Arf6) stably without GAP activity. It binds
paxillin and is implicated in Fcgamma receptor-mediated
phagocytosis in macrophages and in cell migration. ASAP2
contains an N-terminal BAR domain, followed by a
Pleckstrin homology (PH) domain, an Arf GAP domain,
ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 30.7 bits (69), Expect = 0.62
Identities = 13/53 (24%), Positives = 29/53 (54%), Gaps = 3/53 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVN---DRQGFVPAAYV 199
V ALY+ +P E++ + +++ + +K+WW ++ R+G P ++V
Sbjct: 2 VKALYNCVADNPDELTFSEGEIIIVDGEEDKEWWIGHIDGEPTRRGAFPVSFV 54
>gnl|CDD|212818 cd11885, SH3_SH3TC, Src Homology 3 domain of SH3 domain and
tetratricopeptide repeat-containing (SH3TC) proteins and
similar domains. This subfamily is composed of
vertebrate SH3TC proteins and hypothetical fungal
proteins containing BAR and SH3 domains. Mammals contain
two SH3TC proteins, SH3TC1 and SH3TC2. The function of
SH3TC1 is unknown. SH3TC2 is localized in Schwann cells
in the peripheral nervous system, where it interacts
with Rab11 and plays a role in peripheral nerve
myelination. Mutations in SH3TC2 are associated with
Charcot-Marie-Tooth disease type 4C, a severe hereditary
peripheral neuropathy with symptoms that include
progressive scoliosis, delayed age of walking, muscular
atrophy, distal weakness, and reduced nerve conduction
velocity. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 55
Score = 30.4 bits (69), Expect = 0.64
Identities = 12/52 (23%), Positives = 24/52 (46%), Gaps = 4/52 (7%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNS--NNKDWW--KVEVNDRQGFVPAAYV 199
A D+ P E+S ++ D + ++ W+ + + + R GFVP +
Sbjct: 4 AKMDFEGVEPGELSFRQGDSIEIIGDLIPGLQWFVGRSKSSGRVGFVPTNHF 55
>gnl|CDD|212988 cd12055, SH3_CIN85_2, Second Src Homology 3 domain (SH3B) of
Cbl-interacting protein of 85 kDa. CIN85, also called
SH3 domain-containing kinase-binding protein 1 (SH3KBP1)
or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor
protein that is involved in the downregulation of
receptor tyrosine kinases by facilitating endocytosis
through interaction with endophilin-associated ubiquitin
ligase Cbl proteins. It is also important in many other
cellular processes including vesicle-mediated transport,
cytoskeletal remodelling, apoptosis, cell adhesion and
migration, and viral infection, among others. CIN85
exists as multiple variants from alternative splicing;
the main variant contains three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CIN85 to bind
various protein partners and assemble complexes that
have been implicated in many different functions. This
alignment model represents the second SH3 domain (SH3B)
of CIN85. SH3B has been shown to bind Cbl proline-rich
peptides and ubiquitin. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 30.0 bits (67), Expect = 0.95
Identities = 12/53 (22%), Positives = 30/53 (56%), Gaps = 1/53 (1%)
Query: 149 CVIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
C +A + Y ++ E+ +K D++ ++ + WW+ +N + G P+ ++K+
Sbjct: 2 CQVA-FSYLPQNEDELELKVGDIIEVVGEVEEGWWEGVLNGKTGMFPSNFIKE 53
>gnl|CDD|212745 cd11811, SH3_CHK, Src Homology 3 domain of CSK homologous kinase.
CHK is also referred to as megakaryocyte-associated
tyrosine kinase (Matk). It inhibits Src kinases using a
noncatalytic mechanism by simply binding to them. As a
negative regulator of Src kinases, Chk may play
important roles in cell proliferation, survival, and
differentiation, and consequently, in cancer development
and progression. To inhibit Src kinases that are
anchored to the plasma membrane, CHK is translocated to
the membrane via binding to specific transmembrane
proteins, G-proteins, or adaptor proteins near the
membrane. CHK also plays a role in neural
differentiation in a manner independent of Src by
enhancing MAPK activation via Ras-mediated signaling. It
is a cytoplasmic (or nonreceptor) tyr kinase containing
the Src homology domains, SH3 and SH2, N-terminal to the
catalytic tyr kinase domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 59
Score = 30.2 bits (68), Expect = 0.98
Identities = 13/44 (29%), Positives = 25/44 (56%), Gaps = 2/44 (4%)
Query: 146 GKECVIALYDYTEKSPREVSMKKSDVLTLLNS-NNKDWWKVEVN 188
G +CV D+T+ P E++ K D++T++ + K W++ N
Sbjct: 1 GTQCV-TKKDHTKPKPGELAFHKGDIVTIVETCERKGWYRARHN 43
>gnl|CDD|212812 cd11879, SH3_Bem1p_2, Second Src Homology 3 domain of Bud emergence
protein 1 and similar domains. Members of this
subfamily bear similarity to Saccharomyces cerevisiae
Bem1p, containing two Src Homology 3 (SH3) domains at
the N-terminus, a central PX domain, and a C-terminal
PB1 domain. Bem1p is a scaffolding protein that is
critical for proper Cdc42p activation during bud
formation in yeast. During budding and mating, Bem1p
migrates to the plasma membrane where it can serve as an
adaptor for Cdc42p and some other proteins. Bem1p also
functions as an effector of the G1 cyclin Cln3p and the
cyclin-dependent kinase Cdc28p in promoting vacuolar
fusion. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 56
Score = 30.0 bits (68), Expect = 1.0
Identities = 14/52 (26%), Positives = 26/52 (50%), Gaps = 3/52 (5%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR---QGFVPAAYV 199
I LYD+ + P E+ K D + + +N +W+ + R G +P ++V
Sbjct: 3 IVLYDFKAERPDELDAKAGDAIIICAHSNYEWFVAKPIGRLGGPGLIPVSFV 54
>gnl|CDD|205383 pfam13202, EF_hand_3, EF hand.
Length = 25
Score = 28.8 bits (66), Expect = 1.1
Identities = 6/25 (24%), Positives = 11/25 (44%)
Query: 1539 FEAILDLVDPNRDGHVSLQEYMAFM 1563
+ + D N DG +S +E +
Sbjct: 1 LKDLFRQFDTNGDGKISKEELKRLL 25
Score = 28.0 bits (64), Expect = 2.6
Identities = 8/22 (36%), Positives = 14/22 (63%)
Query: 1499 MFKHFDKDKSGKLNQTEFKSCL 1520
+F+ FD + GK+++ E K L
Sbjct: 4 LFRQFDTNGDGKISKEELKRLL 25
>gnl|CDD|212773 cd11839, SH3_Intersectin_4, Fourth Src homology 3 domain (or SH3D)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The fourth SH3 domain (or SH3D) of
ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and
N-WASP. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 30.0 bits (68), Expect = 1.1
Identities = 15/57 (26%), Positives = 27/57 (47%), Gaps = 7/57 (12%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQ-----GFVPAAYVKK 201
VIA + T + ++S+ ++ + + WW+ E+ R G+ PA YVK
Sbjct: 4 VIAPFTAT--AENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVKL 58
>gnl|CDD|213004 cd12071, SH3_FBP17, Src Homology 3 domain of Formin Binding Protein
17. Formin Binding Protein 17 (FBP17), also called
FormiN Binding Protein 1 (FNBP1), is involved in
dynamin-mediated endocytosis. It is recruited to
clathrin-coated pits late in the endocytosis process and
may play a role in the invagination and scission steps.
FBP17 binds in vivo to tankyrase, a protein involved in
telomere maintenance and mitogen activated protein
kinase (MAPK) signaling. It contains an N-terminal F-BAR
(FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain, a
Cdc42-binding HR1 domain, and a C-terminal SH3 domain.
The SH3 domain of the related protein, CIP4, associates
with Gapex-5, a Rab31 GEF. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 29.6 bits (66), Expect = 1.4
Identities = 13/51 (25%), Positives = 31/51 (60%), Gaps = 2/51 (3%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKD-WWKVEVN-DRQGFVPAAYVK 200
ALY + ++ +S+ + ++L ++ + D W ++ N D +G+VP +Y++
Sbjct: 5 ALYPFEGQNEGTISVAEGEMLYVIEEDKGDGWTRIRRNEDEEGYVPTSYIE 55
>gnl|CDD|212938 cd12005, SH3_Lck, Src homology 3 domain of Lck Protein Tyrosine
Kinase. Lck is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
Lck is expressed in T-cells and natural killer cells. It
plays a critical role in T-cell maturation, activation,
and T-cell receptor (TCR) signaling. Lck phosphorylates
ITAM (immunoreceptor tyr activation motif) sequences on
several subunits of TCRs, leading to the activation of
different second messenger cascades. Phosphorylated
ITAMs serve as binding sites for other signaling factor
such as Syk and ZAP-70, leading to their activation and
propagation of downstream events. In addition, Lck
regulates drug-induced apoptosis by interfering with the
mitochondrial death pathway. The apototic role of Lck is
independent of its primary function in T-cell signaling.
Src kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). The SH3
domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 29.4 bits (66), Expect = 1.6
Identities = 16/54 (29%), Positives = 29/54 (53%), Gaps = 3/54 (5%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYVKK 201
V+ALY Y ++ +K + L +L + +WWK + ++GF+P +V K
Sbjct: 2 VVALYSYEPSHDGDLGFEKGEKLRILEQSG-EWWKAQSLTTGQEGFIPFNFVAK 54
>gnl|CDD|212710 cd11776, SH3_PI3K_p85, Src Homology 3 domain of the p85 regulatory
subunit of Class IA Phosphatidylinositol 3-kinases.
Class I PI3Ks convert PtdIns(4,5)P2 to the critical
second messenger PtdIns(3,4,5)P3. They are heterodimers
and exist in multiple isoforms consisting of one
catalytic subunit (out of four isoforms) and one of
several regulatory subunits. Class IA PI3Ks associate
with the p85 regulatory subunit family, which contains
SH3, RhoGAP, and SH2 domains. The p85 subunits recruit
the PI3K p110 catalytic subunit to the membrane, where
p110 phosphorylates inositol lipids. Vertebrates harbor
two p85 isoforms, called alpha and beta. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 72
Score = 29.8 bits (67), Expect = 1.6
Identities = 14/44 (31%), Positives = 23/44 (52%), Gaps = 3/44 (6%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVP 195
ALYDY ++ ++ +K DVL + N + + V D + VP
Sbjct: 5 ALYDYEKERDEDIILKTGDVLVV---ENPELLALGVPDGKETVP 45
>gnl|CDD|132791 cd06881, PX_SNX15_like, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 15-like proteins. The PX domain
is a phosphoinositide (PI) binding module present in
many proteins with diverse functions such as cell
signaling, vesicular trafficking, protein sorting, and
lipid modification, among others. Members of this
subfamily have similarity to sorting nexin 15 (SNX15),
which contains an N-terminal PX domain and a C-terminal
Microtubule Interacting and Trafficking (MIT) domain.
SNXs make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNX15 plays a role in
protein trafficking processes in the endocytic pathway
and the trans-Golgi network. The PX domain of SNX15
interacts with the PDGF receptor and is responsible for
the membrane association of the protein. Other members
of this subfamily contain an additional C-terminal
kinase domain, similar to human RPK118, which binds
sphingosine kinase and the antioxidant peroxiredoxin-3
(PRDX3). RPK118 may be involved in the transport of
proteins such as PRDX3 from the cytoplasm to its site of
function in the mitochondria.
Length = 117
Score = 30.8 bits (70), Expect = 1.7
Identities = 16/44 (36%), Positives = 24/44 (54%), Gaps = 5/44 (11%)
Query: 866 GQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFR 909
G+FDA+ I+E+RQ+I E + + N A Q+ QFF
Sbjct: 77 GRFDAAVIEERRQAILELLDFVGNHPALYQSS-----AFQQFFE 115
>gnl|CDD|212781 cd11847, SH3_Brk, Src homology 3 domain of Brk (Breast tumor
kinase) Protein Tyrosine Kinase (PTK), also called PTK6.
Brk is a cytoplasmic (or non-receptor) PTK with limited
homology to Src kinases. It has been found to be
overexpressed in a majority of breast tumors. It plays
roles in normal cell differentiation, proliferation,
survival, migration, and cell cycle progression. Brk
substrates include RNA-binding proteins (SLM-1/2,
Sam68), transcription factors (STAT3/5), and signaling
molecules (Akt, paxillin, IRS-4). Src kinases in general
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr; they are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). However, Brk lacks the
N-terminal myristoylation site. The SH3 domain of Src
kinases contributes to substrate recruitment by binding
adaptor proteins/substrates, and regulation of kinase
activity through an intramolecular interaction. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 29.4 bits (66), Expect = 1.7
Identities = 17/55 (30%), Positives = 25/55 (45%), Gaps = 7/55 (12%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDR------QGFVPAAYV 199
AL+D+ + E+S + D + + DWW DR QGFVP Y+
Sbjct: 3 KALWDFKARGDEELSFQAGDQFRIA-ERSGDWWTALKLDRAGGVVAQGFVPNNYL 56
>gnl|CDD|212727 cd11793, SH3_ephexin1_like, Src homology 3 domain of ephexin-1-like
SH3 domain containing Rho guanine nucleotide exchange
factors. Members of this family contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin Homology (PH),
and C-terminal SH3 domains. They include the Rho guanine
nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19,
ARHGEF26, ARHGEF27 (also called ephexin-1), and similar
proteins, and are also called ephexins because they
interact directly with ephrin A receptors. GEFs interact
with Rho GTPases via their DH domains to catalyze
nucleotide exchange by stabilizing the nucleotide-free
GTPase intermediate. They play important roles in
neuronal development. The SH3 domains of ARHGEFs play an
autoinhibitory role through intramolecular interactions
with a proline-rich region N-terminal to the DH domain.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 29.2 bits (66), Expect = 1.8
Identities = 13/52 (25%), Positives = 30/52 (57%), Gaps = 2/52 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVE--VNDRQGFVPAAYV 199
V ++ YT + P E+++++ DV+ +L W++ E + +G+ P++Y
Sbjct: 2 VQCVHAYTAQQPDELTLEEGDVVNVLRKMPDGWYEGERLRDGERGWFPSSYT 53
>gnl|CDD|212796 cd11862, SH3_MPP, Src Homology 3 domain of Membrane Protein,
Palmitoylated (or MAGUK p55 subfamily member) proteins.
The MPP/p55 subfamily of MAGUK (membrane-associated
guanylate kinase) proteins includes at least eight
vertebrate members (MPP1-7 and CASK), four Drosophila
proteins (Stardust, Varicose, CASK and Skiff), and other
similar proteins; they all contain one each of the core
of three domains characteristic of MAGUK proteins: PDZ,
SH3, and guanylate kinase (GuK). In addition, most
members except for MPP1 contain N-terminal L27 domains
and some also contain a Hook (Protein 4.1 Binding) motif
in between the SH3 and GuK domains. CASK has an
additional calmodulin-dependent kinase (CaMK)-like
domain at the N-terminus. Members of this subfamily are
scaffolding proteins that play important roles in
regulating and establishing cell polarity, cell
adhesion, and synaptic targeting and transmission, among
others. The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 29.5 bits (67), Expect = 1.9
Identities = 18/59 (30%), Positives = 30/59 (50%), Gaps = 17/59 (28%)
Query: 152 ALYDYTEKSPRE----------VSMKKSDVLTLLNSNNKDWWKV----EVNDRQGFVPA 196
AL+DY P E +S KK D+L ++N ++ +WW+ + N R G +P+
Sbjct: 4 ALFDY---DPEEDPLIPCKEAGLSFKKGDILQIVNQDDPNWWQARKVGDPNGRAGLIPS 59
>gnl|CDD|212966 cd12033, SH3_MPP7, Src Homology 3 domain of Membrane Protein,
Palmitoylated 7 (or MAGUK p55 subfamily member 7). MPP7
is a scaffolding protein that binds to DLG1 and promotes
tight junction formation and epithelial cell polarity.
Mutations in the MPP7 gene may be associated with the
pathogenesis of diabetes and extreme bone mineral
density. It is one of seven vertebrate homologs of the
Drosophila Stardust protein, which is required in
establishing cell polarity, and it contains two L27
domains followed by the core of three domains
characteristic of MAGUK (membrane-associated guanylate
kinase) proteins: PDZ, SH3, and guanylate kinase (GuK).
The GuK domain in MAGUK proteins is enzymatically
inactive; instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 29.2 bits (65), Expect = 2.0
Identities = 15/60 (25%), Positives = 30/60 (50%), Gaps = 11/60 (18%)
Query: 150 VIALYDYTEKSPREV-------SMKKSDVLTLLNSNNKDWWKV----EVNDRQGFVPAAY 198
+ AL+DY + + S KK D+L +++ ++ WW+ + N R G +P+ +
Sbjct: 2 IKALFDYNPNEDKAIPCKEAGLSFKKGDILQIMSQDDATWWQAKHEGDANPRAGLIPSKH 61
>gnl|CDD|212807 cd11874, SH3_CD2AP-like_2, Second Src Homology 3 domain (SH3B) of
CD2-associated protein and similar proteins. This
subfamily is composed of the second SH3 domain (SH3B) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3B of both proteins have been shown to bind to Cbl. In
the case of CD2AP, its SH3B binds to Cbl at a site
distinct from the c-Cbl/SH3A binding site. The CIN85
SH3B also binds ubiquitin. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 28.8 bits (65), Expect = 2.2
Identities = 14/49 (28%), Positives = 28/49 (57%)
Query: 152 ALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVK 200
L+ YT ++ E+ +K D + +L + WW+ ++N + G P+ +VK
Sbjct: 4 VLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGKLNGKVGVFPSNFVK 52
>gnl|CDD|240150 cd05023, S-100A11, S-100A11: S-100A11 domain found in proteins
similar to S100A11. S100A11 is a member of the S-100
domain family within EF-hand Ca2+-binding proteins
superfamily. Note that the S-100 hierarchy, to which this
S-100A11 group belongs, contains only S-100 EF-hand
domains, other EF-hands have been modeled separately.
S100 proteins exhibit unique patterns of tissue- and cell
type-specific expression and have been implicated in the
Ca2+-dependent regulation of diverse physiological
processes, including cell cycle regulation,
differentiation, growth, and metabolic control . S100
proteins have also been associated with a variety of
pathological events, including neoplastic transformation
and neurodegenerative diseases such as Alzheimer's,
usually via over expression of the protein. S100A11 is
expressed in smooth muscle and other tissues and involves
in calcium-dependent membrane aggregation, which is
important for cell vesiculation . As is the case for many
other S100 proteins, S100A11 is homodimer, which is able
to form a heterodimer with S100B through subunit
exchange. Ca2+ binding to S100A11 results in a
conformational change in the protein, exposing a
hydrophobic surface that interacts with target proteins.
In addition to binding to annexin A1 and A6 S100A11 also
interacts with actin and transglutaminase.
Length = 89
Score = 30.1 bits (68), Expect = 2.2
Identities = 19/62 (30%), Positives = 33/62 (53%), Gaps = 5/62 (8%)
Query: 1501 KHFDKD-KSGKLNQTEFKSCLRALGYDLPMVEEGQPDPE-FEAILDLVDPNRDGHVSLQE 1558
K+ KD S +L++TEF S + +L + Q DP + ++ +D N DG + QE
Sbjct: 17 KYAGKDGDSYQLSKTEFLSFMNT---ELASFTKNQKDPGVLDRMMKKLDLNSDGQLDFQE 73
Query: 1559 YM 1560
++
Sbjct: 74 FL 75
>gnl|CDD|212931 cd11998, SH3_PACSIN1-2, Src homology 3 domain of Protein kinase C
and Casein kinase Substrate in Neurons 1 (PACSIN1) and
PACSIN 2. PACSIN 1 or Syndapin I (Synaptic
dynamin-associated protein I) is expressed specifically
in the brain and is localized in neurites and synaptic
boutons. It binds the brain-specific proteins dynamin I,
synaptojanin, synapsin I, and neural Wiskott-Aldrich
syndrome protein (nWASP), and functions as a link
between the cytoskeletal machinery and synaptic vesicle
endocytosis. PACSIN 1 interacts with huntingtin and may
be implicated in the neuropathology of Huntington's
disease. PACSIN 2 or Syndapin II is expressed
ubiquitously and is involved in the regulation of
tubulin polymerization. It associates with Golgi
membranes and forms a complex with dynamin II which is
crucial in promoting vesicle formation from the
trans-Golgi network. PACSINs act as regulators of
cytoskeletal and membrane dynamics. Vetebrates harbor
three isoforms with distinct expression patterns and
specific functions. PACSINs contain an N-terminal F-BAR
domain and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 29.1 bits (65), Expect = 2.4
Identities = 20/53 (37%), Positives = 29/53 (54%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLL-NSNNKDWWKVEV-NDRQGFVPAAYVK 200
V ALYDY + E+S K D LT L + + + W K + + + G PA YV+
Sbjct: 3 VRALYDYDGQEQDELSFKAGDELTKLEDEDEQGWCKGRLDSGQVGLYPANYVE 55
>gnl|CDD|212878 cd11945, SH3_Endophilin_B1, Src homology 3 domain of Endophilin-B1.
Endophilin-B1, also called Bax-interacting factor 1
(Bif-1) or SH3GLB1 (SH3-domain GRB2-like endophilin B1),
is localized mainly to the Golgi apparatus. It is
involved in the regulation of many biological events
including autophagy, tumorigenesis, nerve growth factor
(NGF) trafficking, neurite outgrowth, mitochondrial
outer membrane dynamics, and cell death. Endophilins
play roles in synaptic vesicle formation, virus budding,
mitochondrial morphology maintenance, receptor-mediated
endocytosis inhibition, and endosomal sorting. They
contain an N-terminal N-BAR domain (BAR domain with an
additional N-terminal amphipathic helix), followed by a
variable region containing proline clusters, and a
C-terminal SH3 domain. Endophilin-B1 forms homo- and
heterodimers (with endophilin-B2) through its BAR
domain. It interacts with amphiphysin 1 and dynamin 1
through its SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 61
Score = 28.8 bits (64), Expect = 2.6
Identities = 15/50 (30%), Positives = 28/50 (56%), Gaps = 2/50 (4%)
Query: 153 LYDYTEKSPREVSMKKSDVLTLLN--SNNKDWWKVEVNDRQGFVPAAYVK 200
LYDY + E+S+ +V+T+ + + DW E +++G VP Y++
Sbjct: 9 LYDYDAANSTELSLLADEVITVYSVPGMDSDWLMGERGNQKGKVPITYLE 58
>gnl|CDD|213544 TIGR00636, PduO_Nterm, ATP:cob(I)alamin adenosyltransferase. This
model represents as ATP:cob(I)alamin adenosyltransferase
family corresponding to the N-terminal half of
Salmonella PduO, a 1,2-propanediol utilization protein
that probably is bifunctional. PduO represents one of at
least three families of ATP:corrinoid
adenosyltransferase: others are CobA (which partially
complements PduO) and EutT. It was not clear originally
whether ATP:cob(I)alamin adenosyltransferase activity
resides in the N-terminal region of PduO, modeled here,
but this has now become clear from the characterization
of MeaD from Methylobacterium extorquens [Biosynthesis
of cofactors, prosthetic groups, and carriers, Heme,
porphyrin, and cobalamin].
Length = 171
Score = 31.2 bits (71), Expect = 2.7
Identities = 22/98 (22%), Positives = 42/98 (42%), Gaps = 16/98 (16%)
Query: 805 VKDLDFWLGEVESLLTSEDSGKDLASVQNLI-----------KKHQLVEADIQAHDDRIK 853
+ +L+ ++G SLL ED +DL +QN + ++ E D++ ++RI
Sbjct: 31 LDELNSFIGVALSLLKWEDLKEDLERIQNDLFDIGGDLATPGDTKKITEEDVKWLEERID 90
Query: 854 DMNGQADSL----IDSGQFDASSIQEKRQSINERYERI 887
+ L + G A+ + R ++ R ER
Sbjct: 91 QYRKELPPLKLFVLPGGTPAAAFLHVAR-TVARRAERR 127
>gnl|CDD|212794 cd11860, SH3_DLG5, Src homology 3 domain of Disks Large homolog 5.
DLG5 is a multifunctional scaffold protein that is
located at sites of cell-cell contact and is involved in
the maintenance of cell shape and polarity. Mutations in
the DLG5 gene are associated with Crohn's disease (CD)
and inflammatory bowel disease (IBD). DLG5 is a member
of the MAGUK (membrane-associated guanylate kinase)
protein family, which is characterized by the presence
of a core of three domains: PDZ, SH3, and guanylate
kinase (GuK). The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. DLG5 contains 4
PDZ domains as well as an N-terminal domain of unknown
function. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 63
Score = 28.8 bits (65), Expect = 2.8
Identities = 19/59 (32%), Positives = 30/59 (50%), Gaps = 9/59 (15%)
Query: 150 VIALYDYTEKSPREVSMKKSDVL----TLLNSNNKDW--WKVEVNDRQ---GFVPAAYV 199
V AL+D + ++ E+S KK D+L T+ N W W V+ R+ G +P+ Y
Sbjct: 2 VRALFDRSAENEDELSFKKDDILYVDNTMFNGVFGQWRAWLVDEEGRKRKCGIIPSKYK 60
>gnl|CDD|212955 cd12022, SH3_p47phox_2, Second or C-terminal Src homology 3 domain
of the p47phox subunit of NADPH oxidase, also called
Neutrophil Cytosolic Factor 1. p47phox, or NCF1, is a
cytosolic subunit of the phagocytic NADPH oxidase
complex (also called Nox2 or gp91phox), which plays a
key role in the ability of phagocytes to defend against
bacterial infections. NADPH oxidase catalyzes the
transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p47phox is required for activation of NADH
oxidase and plays a role in translocation. It contains
an N-terminal Phox homology (PX) domain, tandem SH3
domains (N-SH3 and C-SH3), a polybasic/autoinhibitory
region, and a C-terminal proline-rich region (PRR). This
model characterizes the second SH3 domain (or C-SH3) of
p47phox. In its inactive state, the tandem SH3 domains
interact intramolecularly with the autoinhibitory
region; upon activation, the tandem SH3 domains are
exposed through a conformational change, resulting in
their binding to the PRR of p22phox and the activation
of NADPH oxidase. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 28.7 bits (64), Expect = 3.0
Identities = 11/51 (21%), Positives = 26/51 (50%)
Query: 151 IALYDYTEKSPREVSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYVKK 201
I + YT E+++ + + + +++ WW V + G+ P+ Y++K
Sbjct: 3 ITIKAYTAVEEDELTLLEGEAIEVIHKLLDGWWVVRKGEVTGYFPSMYLQK 53
>gnl|CDD|212930 cd11997, SH3_PACSIN3, Src homology 3 domain of Protein kinase C and
Casein kinase Substrate in Neurons 3 (PACSIN3). PACSIN
3 or Syndapin III (Synaptic dynamin-associated protein
III) is expressed ubiquitously and regulates glucose
uptake in adipocytes through its role in GLUT1
trafficking. It also modulates the subcellular
localization and stimulus-specific function of the
cation channel TRPV4. PACSINs act as regulators of
cytoskeletal and membrane dynamics. Vetebrates harbor
three isoforms with distinct expression patterns and
specific functions. PACSINs contain an N-terminal F-BAR
domain and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 28.4 bits (63), Expect = 3.6
Identities = 18/53 (33%), Positives = 27/53 (50%), Gaps = 2/53 (3%)
Query: 150 VIALYDYTEKSPREVSMKKSDVLTLLNSNNKDWW--KVEVNDRQGFVPAAYVK 200
V ALYDYT + E+S K + L + ++ W ++ R G PA YV+
Sbjct: 4 VRALYDYTGQEADELSFKAGEELLKIGEEDEQGWCKGRLLSGRIGLYPANYVE 56
>gnl|CDD|220623 pfam10186, Atg14, UV radiation resistance protein and
autophagy-related subunit 14. The Atg14 or Apg14
proteins are hydrophilic proteins with a predicted
molecular mass of 40.5 kDa, and have a coiled-coil motif
at the N terminus region. Yeast cells with mutant Atg14
are defective not only in autophagy but also in sorting
of carboxypeptidase Y (CPY), a vacuolar-soluble
hydrolase, to the vacuole. Subcellular fractionation
indicate that Apg14p and Apg6p are peripherally
associated with a membrane structure(s). Apg14p was
co-immunoprecipitated with Apg6p, suggesting that they
form a stable protein complex. These results imply that
Apg6/Vps30p has two distinct functions: in the
autophagic process and in the vacuolar protein sorting
pathway. Apg14p may be a component specifically required
for the function of Apg6/Vps30p through the autophagic
pathway. There are 17 auto-phagosomal component proteins
which are categorized into six functional units, one of
which is the AS-PI3K complex (Vps30/Atg6 and Atg14). The
AS-PI3K complex and the Atg2-Atg18 complex are essential
for nucleation, and the specific function of the AS-PI3K
apparently is to produce phosphatidylinositol
3-phosphate (PtdIns(3)P) at the pre-autophagosomal
structure (PAS). The localisation of this complex at the
PAS is controlled by Atg14. Autophagy mediates the
cellular response to nutrient deprivation, protein
aggregation, and pathogen invasion in humans, and
malfunction of autophagy has been implicated in multiple
human diseases including cancer. This effect seems to be
mediated through direct interaction of the human Atg14
with Beclin 1 in the human phosphatidylinositol 3-kinase
class III complex.
Length = 307
Score = 31.6 bits (72), Expect = 3.7
Identities = 25/129 (19%), Positives = 48/129 (37%), Gaps = 12/129 (9%)
Query: 397 LIKKHEDFDKAINAH-EEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALI 455
L+ ++E+ + + E LA L+ + K ++ Q+ R LKE +
Sbjct: 32 LLLENEELKQKVEEALEGATNEDGKLAADLLKLEVARKK---ERLNQIRARISQLKEEIE 88
Query: 456 EKRSRLGESQ--------TLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQ 507
+KR R+ E + L S ++ EKLQ + + + S + +
Sbjct: 89 QKRERIEELKRALAQRRSDLSSASYQLEKRRASQLEKLQDEIKRTRSKLNALHSLLAEKR 148
Query: 508 AFEAELAAN 516
+F A
Sbjct: 149 SFLCRELAK 157
Score = 31.6 bits (72), Expect = 3.7
Identities = 25/129 (19%), Positives = 48/129 (37%), Gaps = 12/129 (9%)
Query: 621 LIKKHEDFDKAINAH-EEKIGALQTLADQLIAADHYAAKPIDDKRKQVLDRWRLLKEALI 679
L+ ++E+ + + E LA L+ + K ++ Q+ R LKE +
Sbjct: 32 LLLENEELKQKVEEALEGATNEDGKLAADLLKLEVARKK---ERLNQIRARISQLKEEIE 88
Query: 680 EKRSRLGESQ--------TLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQ 731
+KR R+ E + L S ++ EKLQ + + + S + +
Sbjct: 89 QKRERIEELKRALAQRRSDLSSASYQLEKRRASQLEKLQDEIKRTRSKLNALHSLLAEKR 148
Query: 732 AFEAELAAN 740
+F A
Sbjct: 149 SFLCRELAK 157
>gnl|CDD|235175 PRK03918, PRK03918, chromosome segregation protein; Provisional.
Length = 880
Score = 31.6 bits (72), Expect = 3.9
Identities = 88/567 (15%), Positives = 208/567 (36%), Gaps = 67/567 (11%)
Query: 230 ERREQVLNRYADFKSEARSKREKLEDITVKEVKILETANDIQERREQVLNRYADFKSEAR 289
+ E + E + + E+LE + I E + ++ E+VL + SE
Sbjct: 158 DDYENAYKNLGEVIKEIKRRIERLEKFIKRTENIEELIKEKEKELEEVLREINEISSELP 217
Query: 290 SKREKLED-SRRFQYFKRDADELESWIYEK----------------LQAASDESYKETTN 332
RE+LE + + + +E+E E L+ +E KE
Sbjct: 218 ELREELEKLEKEVKELEELKEEIEELEKELESLEGSKRKLEEKIRELEERIEELKKEIEE 277
Query: 333 LQAKIQKHQAFEAEVAAHSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNA-EEVDSKT 391
L+ K+++ + + + + + ++ ++ +E++ K
Sbjct: 278 LEEKVKELKELKEKAEEYIKLSEFYEEYLDELREIEKRLSRLEEEINGIEERIKELEEKE 337
Query: 392 DNVEALIKKHEDFDKAINAHEEKIGALQTLADQLIAADHYAAKPID---DKRKQVLDRWR 448
+ +E L KK ++ +K + EE+ + + + + +K ++ L+
Sbjct: 338 ERLEELKKKLKELEKRLEELEERHELYEEAKAKKEELERLKKRLTGLTPEKLEKELEELE 397
Query: 449 LLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLA-----------TEESYK--- 494
KE + E+ S++ + + + E+L+ A TEE K
Sbjct: 398 KAKEEIEEEISKITARIG-ELKKEIKELKKA--IEELKKAKGKCPVCGRELTEEHRKELL 454
Query: 495 -----DPANIQSKHQKHQAFEAELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLAS 549
+ I+ + ++ + E +L ++ VL LI ++ + ++ +L
Sbjct: 455 EEYTAELKRIEKELKEIEEKERKLRKELRELEKVLKKESELIKLKELAEQLKELEEKLKK 514
Query: 550 IADQWEFLTQKTTEKSLKLKEANKQRTYIAAVKDLPYFSKKDCEQAENWMSAREAFLNAE 609
E L +K E ++ K + I ++ KK+ E+ E +
Sbjct: 515 Y--NLEELEKKAEEYEKLKEKLIKLKGEIKSL-------KKELEKLEELKKKLAELE--K 563
Query: 610 EVDSKTDNVEALIKKHEDFD-KAINAHEEKIGALQTLADQLIAADHYAAKPIDDKRKQVL 668
++D + + L+K+ E+ +++ EE++ L+ ++ + K + + ++
Sbjct: 564 KLDELEEELAELLKELEELGFESVEELEERLKELEPFYNEYL-----ELKDAEKELEREE 618
Query: 669 DRWRLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLATEESYKDPAN-IQSKH 727
+ L+E L + L E++ +E+ + E + +EE Y++
Sbjct: 619 KELKKLEEELDKAFEELAETEK------RLEELRKELEELEKKYSEEEYEELREEYLELS 672
Query: 728 QKHQAFEAELAANADRIQSVLAMGQNL 754
++ AEL R + + + L
Sbjct: 673 RELAGLRAELEELEKRREEIKKTLEKL 699
>gnl|CDD|233758 TIGR02169, SMC_prok_A, chromosome segregation protein SMC, primarily
archaeal type. SMC (structural maintenance of
chromosomes) proteins bind DNA and act in organizing and
segregating chromosomes for partition. SMC proteins are
found in bacteria, archaea, and eukaryotes. It is found
in a single copy and is homodimeric in prokaryotes, but
six paralogs (excluded from this family) are found in
eukarotes, where SMC proteins are heterodimeric. This
family represents the SMC protein of archaea and a few
bacteria (Aquifex, Synechocystis, etc); the SMC of other
bacteria is described by TIGR02168. The N- and C-terminal
domains of this protein are well conserved, but the
central hinge region is skewed in composition and highly
divergent [Cellular processes, Cell division, DNA
metabolism, Chromosome-associated proteins].
Length = 1164
Score = 31.6 bits (72), Expect = 4.1
Identities = 57/349 (16%), Positives = 128/349 (36%), Gaps = 44/349 (12%)
Query: 672 RLLKEALIEKRSRLGESQTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQ 731
R L E R L Q DA I ++++ +E K ++ +
Sbjct: 688 RELSSLQSELRRIENRLDELSQELSDASRKIGEIEKEIEQLEQEEEKLKERLEELEEDLS 747
Query: 732 AFEAELAANADRIQSVLAMGQNLIDKRQCVGSEEAVQARLASIADQWEFLTQKTTEKSLK 791
+ E E+ ++ + A + L + EEA+ A ++ + +
Sbjct: 748 SLEQEIENVKSELKELEARIEEL--EEDLHKLEEALNDLEARLSH--SRIPEIQ------ 797
Query: 792 LKEANKQRTYIAAVKDLDFWLGEVESLLTSEDSGKDLAS--VQNLIKKHQLVEADIQAHD 849
E +K V ++ L E+E L K+ +Q L ++ ++ I++ +
Sbjct: 798 -AELSKLEEE---VSRIEARLREIEQKLNRLTLEKEYLEKEIQELQEQRIDLKEQIKSIE 853
Query: 850 DRIKDMNGQADSLIDSGQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFR 909
I+++NG+ + L ++E ++ + R+ +L R + L +
Sbjct: 854 KEIENLNGKKEEL-------EEELEELEAALRDLESRLGDLKKERDELEAQLRELERKIE 906
Query: 910 DIADEESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPA------------ 957
++ + I++K+ + ++ L+++ +E +
Sbjct: 907 ELEAQ---IEKKRKRL-----SELKAKLEALEEELSEIEDPKGEDEEIPEEELSLEDVQA 958
Query: 958 -IQNVQETGEKLMDVSNLGVPEIEQRLKLLNQAWSELKQLAANRGQKLD 1005
+Q V+E L V+ L + E E+ LK L++ + +L R L+
Sbjct: 959 ELQRVEEEIRALEPVNMLAIQEYEEVLKRLDELKEKRAKLEEERKAILE 1007
Score = 30.8 bits (70), Expect = 8.3
Identities = 50/316 (15%), Positives = 113/316 (35%), Gaps = 39/316 (12%)
Query: 184 KVEVNDRQGFVPAAYVKKMEAGLTASQQNLADVKEV---------KILETANDIQERREQ 234
E + +G+ + +E A ++ LA ++E ++ + +I++ E+
Sbjct: 217 LKEKREYEGYELLKEKEALERQKEAIERQLASLEEELEKLTEEISELEKRLEEIEQLLEE 276
Query: 235 VLNRYADFKS-EARSKREKLEDITVKEVKI-------LETANDIQERREQVLNRYADFKS 286
+ + D E +EK+ ++ + + D +ER ++ +
Sbjct: 277 LNKKIKDLGEEEQLRVKEKIGELEAEIASLERSIAEKERELEDAEERLAKLEAEIDKLLA 336
Query: 287 EARSKREKLEDSRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKHQAFEAE 346
E ++E+ R+ + E+ +E L+ ++ E
Sbjct: 337 EIEELEREIEEERK---------RRDKLT-EEYAELKEELEDLRAELEEVDKEFAETRDE 386
Query: 347 VAAHSNAIVVLDNTGNDFYRDCEQAEN---WMSAREAFLNAEEVDSKTDNVEALIKKHED 403
+ + + L N+ R+ ++ + +S A LNA + + L ++ ED
Sbjct: 387 LKDYREKLEKLKREINELKRELDRLQEELQRLSEELADLNA-AIAGIEAKINELEEEKED 445
Query: 404 FDKAINAHEEKIGALQTLADQLIAAD--HYAAKPIDDKRKQVLDRWRLLKEALIEKRSRL 461
I E K L+ LA L + Y K ++ +V L+ L E ++
Sbjct: 446 KALEIKKQEWK---LEQLAADLSKYEQELYDLK---EEYDRVEKELSKLQRELAEAEAQA 499
Query: 462 GESQTLQQFSRDADEM 477
S+ + R +E+
Sbjct: 500 RASEERVRGGRAVEEV 515
>gnl|CDD|217680 pfam03702, UPF0075, Uncharacterized protein family (UPF0075). The
proteins is this family are about 370 amino acids long
and have no known function.
Length = 365
Score = 31.2 bits (71), Expect = 4.3
Identities = 32/128 (25%), Positives = 51/128 (39%), Gaps = 15/128 (11%)
Query: 820 TSEDSGKDLASVQNLIKKHQLVEADIQAHDDRIKD-----MNGQADSLIDSGQFD----- 869
TS D G D A V K +L+ + ++ G A +L G+ D
Sbjct: 10 TSLD-GVDAALVDIGDAKIELLASHSSPMPASLRQKLLDLCQGGATTLSRLGELDHQLGL 68
Query: 870 --ASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKK-LLVG 926
A ++ E Q N + +I+ + H Q +E N F I D + I E+ + V
Sbjct: 69 LFADAVNELLQKQNLKPSQIRAIGCHGQTVRHEPNGRFPFTMQIGDP-NLIAERTGITVV 127
Query: 927 SDDYGRDL 934
+D RD+
Sbjct: 128 ADFRRRDV 135
>gnl|CDD|205922 pfam13748, ABC_membrane_3, ABC transporter transmembrane region.
This family represents a unit of six transmembrane
helices.
Length = 237
Score = 31.1 bits (71), Expect = 4.4
Identities = 15/57 (26%), Positives = 20/57 (35%), Gaps = 14/57 (24%)
Query: 71 LEADVASHLDRIESVKAATEQFLEHYGKDEDSSEALLKKHEALVSDLEAFGNTILGL 127
LE +V IE K HY L + +SD EA ++GL
Sbjct: 173 LEKEV----GLIERRK--PSALRRHYRA--------LSRLRIRLSDREALVYLLIGL 215
>gnl|CDD|212863 cd11930, SH3_SH3RF1_2, Second Src Homology 3 domain of SH3 domain
containing ring finger protein 1, an E3
ubiquitin-protein ligase. SH3RF1 is also called POSH
(Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein
2). It is a scaffold protein that acts as an E3
ubiquitin-protein ligase. It plays a role in calcium
homeostasis through the control of the ubiquitin domain
protein Herp. It may also have a role in regulating
death receptor mediated and JNK mediated apoptosis.
SH3RF1 also enhances the ubiquitination of ROMK1
potassium channel resulting in its increased
endocytosis. It contains an N-terminal RING finger
domain and four SH3 domains. This model represents the
second SH3 domain, located C-terminal of the first SH3
domain at the N-terminal half, of SH3RF1. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 28.0 bits (62), Expect = 4.6
Identities = 15/52 (28%), Positives = 27/52 (51%), Gaps = 4/52 (7%)
Query: 152 ALYDYTEKSPRE----VSMKKSDVLTLLNSNNKDWWKVEVNDRQGFVPAAYV 199
ALYD+ K + K D+LT++ +++W + + D+ G P +YV
Sbjct: 4 ALYDFEVKDKEADKDCLPFAKDDILTVIRRVDENWAEGMLGDKIGIFPISYV 55
>gnl|CDD|218731 pfam05752, Calici_MSP, Calicivirus minor structural protein. This
family consists of minor structural proteins largely
from human calicivirus isolates. Human calicivirus
causes gastroenteritis. The function of this family is
unknown.
Length = 167
Score = 30.4 bits (69), Expect = 5.0
Identities = 17/82 (20%), Positives = 34/82 (41%), Gaps = 17/82 (20%)
Query: 465 QTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQAFEAELAAN--ADRIQS 522
+ L Q ++ ++W+ ++ L ++ Q +L+ N A R+QS
Sbjct: 29 RQLAQLAKQNQLQQDWMNKQEALQ---------------RRGQDLSRDLSVNGPALRVQS 73
Query: 523 VLAMGQNLIDKRQCVGSEEAVQ 544
+ G + + R+ GS E V
Sbjct: 74 AVDAGFDPVSARRLAGSGERVI 95
Score = 30.4 bits (69), Expect = 5.0
Identities = 17/82 (20%), Positives = 34/82 (41%), Gaps = 17/82 (20%)
Query: 689 QTLQQFSRDADEMENWIAEKLQLATEESYKDPANIQSKHQKHQAFEAELAAN--ADRIQS 746
+ L Q ++ ++W+ ++ L ++ Q +L+ N A R+QS
Sbjct: 29 RQLAQLAKQNQLQQDWMNKQEALQ---------------RRGQDLSRDLSVNGPALRVQS 73
Query: 747 VLAMGQNLIDKRQCVGSEEAVQ 768
+ G + + R+ GS E V
Sbjct: 74 AVDAGFDPVSARRLAGSGERVI 95
>gnl|CDD|220663 pfam10266, Strumpellin, Hereditary spastic paraplegia protein
strumpellin. This is a family of proteins conserved from
plants to humans, in which two closely situated point
mutations in the human protein lead to the condition of
hereditary spastic paraplegia. Strumpellin contains one
known domain called a spectrin repeat that consists of
three alpha-helices of a characteristic length wrapped in
a left-handed coiled coil. The spectrin proteins have
multiple copies of this repeat, which can then form
multimers in the cell. Spectrin associates with the cell
membrane via spectrin repeats in the ankyrin protein. The
spectrin repeat is a structural platform for cytoskeletal
protein assemblies.
Length = 1077
Score = 31.5 bits (72), Expect = 5.0
Identities = 19/58 (32%), Positives = 31/58 (53%), Gaps = 3/58 (5%)
Query: 990 WSELKQLAANRGQKLDESLTYQHFLAKVEEEE---AWISEKQQLLSVEDYGDTMAAVQ 1044
W E K+ A R Q+L E + L+KV+++E W +E + + DY D+ AA +
Sbjct: 410 WEESKKEAVERMQELAEFFSGTKPLSKVKKDENLQKWFAEISKEIEKLDYDDSTAAGR 467
>gnl|CDD|234141 TIGR03185, DNA_S_dndD, DNA sulfur modification protein DndD. This
model describes the DndB protein encoded by an operon
associated with a sulfur-containing modification to DNA.
The operon is sporadically distributed in bacteria, much
like some restriction enzyme operons. DndD is described
as a putative ATPase. The small number of examples known
so far include species from among the Firmicutes,
Actinomycetes, Proteobacteria, and Cyanobacteria [DNA
metabolism, Restriction/modification].
Length = 650
Score = 31.2 bits (71), Expect = 5.4
Identities = 18/80 (22%), Positives = 30/80 (37%), Gaps = 2/80 (2%)
Query: 1304 REAHAQFQASLSSAQADFEALAALDQQIKSFNVGPNPYTWFTMEALEDTWRNLQKIIKER 1363
RE L + E LA +D++I + E L + L + E
Sbjct: 387 RELQDAKSQLLKELRELEEELAEVDKKIST-IPSEEQIAQLL-EELGEAQNELFRSEAEI 444
Query: 1364 DIELAKEATRQDENDALRKE 1383
+ L + T ++ +ALRK
Sbjct: 445 EELLRQLETLKEAIEALRKT 464
>gnl|CDD|221952 pfam13166, AAA_13, AAA domain. This family of domains contain a
P-loop motif that is characteristic of the AAA
superfamily. Many of the proteins in this family are
conjugative transfer proteins. This family includes the
PrrC protein that is thought to be the active component
of the anticodon nuclease.
Length = 713
Score = 30.7 bits (70), Expect = 6.7
Identities = 26/151 (17%), Positives = 61/151 (40%), Gaps = 14/151 (9%)
Query: 292 REKLED--SRRFQYFKRDADELESWIYEKLQAASDESYKETTNLQAKIQKHQAFEAEVAA 349
+ +LE +Q +EL YE + E + + + +++ F+ +V
Sbjct: 269 KAELEAHFDEEYQELIEQLEELIDK-YESHIEKALEELESILDTE---KENSEFKLDVEE 324
Query: 350 HSNAIVVLDNTGNDFYRDCEQAENWMSAREAFLNAEEVDSKTDNVEALIKKHEDFDKAIN 409
+ L+ ++ ++ E + + + E ++S TD +E++ + ++ I
Sbjct: 325 LKALLEALEEI---LEKNLQKLEEKLK--DPSTSIE-LESITDLIESINDIIDAINELIR 378
Query: 410 AHEEKIGALQTLADQLIAA--DHYAAKPIDD 438
H EKI L+ ++ H A+ +D
Sbjct: 379 EHNEKIDNLKKEKNKAKKKLWLHLVAELKED 409
>gnl|CDD|202456 pfam02898, NO_synthase, Nitric oxide synthase, oxygenase domain.
Length = 366
Score = 30.5 bits (69), Expect = 6.8
Identities = 20/68 (29%), Positives = 29/68 (42%), Gaps = 3/68 (4%)
Query: 1272 FSASSFNSWFENAE---EDLTDPVRCNSIEEIRALREAHAQFQASLSSAQADFEALAALD 1328
F A FN W+ E +L DP R N +E + + +SL +A E A+
Sbjct: 234 FPACPFNGWYMGTEIGVRNLCDPNRYNILEPVARKMGLDTRTLSSLWKDKALVEINVAVL 293
Query: 1329 QQIKSFNV 1336
+S NV
Sbjct: 294 HSFQSANV 301
>gnl|CDD|221432 pfam12128, DUF3584, Protein of unknown function (DUF3584). This
protein is found in bacteria and eukaryotes. Proteins in
this family are typically between 943 to 1234 amino
acids in length. This family contains a P-loop motif
suggesting it is a nucleotide binding protein. It may be
involved in replication.
Length = 1198
Score = 30.8 bits (70), Expect = 7.7
Identities = 47/259 (18%), Positives = 86/259 (33%), Gaps = 33/259 (12%)
Query: 706 AEKLQLATEESYKDPANIQSKHQKHQAFEA--ELAANADRIQSVLAMGQNLIDKRQCVGS 763
A Q EE AN + + QK EA L +Q + Q+L DK + +
Sbjct: 619 AVAKQKQAEEQLVQ-ANAELEEQKRAEAEARTALKQARLDLQRLQNEQQSLKDKLELAIA 677
Query: 764 EE--AVQARLASIADQWEFLTQKTTEKSLKLKEANKQRTYIAAVKDLDFWLGEVESLLTS 821
E + +L + Q K + + + + + VE L
Sbjct: 678 ERKQQAETQLRQLDAQ-----LKQLLEQQQAFLEALKDDFRELRTERLAKWQVVEGELD- 731
Query: 822 EDSGKDLASVQNLIKKHQLVEADIQAHDDRIKDMNGQADSLIDSGQFDASSIQEKRQSIN 881
+ L +EA R+K++ Q D + S D ++++E ++ I
Sbjct: 732 -------NQLAQLSA---AIEAARTQAKARLKELKKQYDRELASLDVDPNTVKELKRQIE 781
Query: 882 ERYERIKNLAAHRQARLNEANTLHQFFRDIADEESWIKEKKLLVGSDDYGRDLTGVQNLK 941
E I+ +A R E F + E+W+ L + ++ L+
Sbjct: 782 ELETTIERIAVRRP----EVREYRAFMQ-----ETWLHRDSLREERPNLA---IQLRELE 829
Query: 942 KKHKRLEAELASHQPAIQN 960
+ L+ EL +
Sbjct: 830 SSAEELQQELTRLIKDTKL 848
>gnl|CDD|132821 cd07288, PX_SNX15, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 15. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX15 contains an N-terminal
PX domain and a C-terminal Microtubule Interacting and
Trafficking (MIT) domain. It plays a role in protein
trafficking processes in the endocytic pathway and the
trans-Golgi network. The PX domain of SNX15 interacts
with the PDGF receptor and is responsible for the
membrane association of the protein.
Length = 118
Score = 28.8 bits (64), Expect = 8.4
Identities = 14/45 (31%), Positives = 23/45 (51%), Gaps = 5/45 (11%)
Query: 866 GQFDASSIQEKRQSINERYERIKNLAAHRQARLNEANTLHQFFRD 910
G+F+A+ I+E+R + N+ A L + L +FFRD
Sbjct: 78 GRFEAAVIEERRNAAEAMLLFTVNIPA-----LYNSPQLKEFFRD 117
>gnl|CDD|182791 PRK10865, PRK10865, protein disaggregation chaperone; Provisional.
Length = 857
Score = 30.6 bits (69), Expect = 8.6
Identities = 41/162 (25%), Positives = 67/162 (41%), Gaps = 39/162 (24%)
Query: 858 QADSLIDSGQFDASSIQ----EKRQSINERYERIKNLAAHRQA-----------RLNEAN 902
+A LID ASSI+ K + ++ RI L +QA RL+ N
Sbjct: 389 KAIDLIDEA---ASSIRMQIDSKPEELDRLDRRIIQLKLEQQALMKESDEASKKRLDMLN 445
Query: 903 T-LHQFFRDIAD-EESWIKEKKLLVGSDDYGRDLTGVQNLKKKHKRLEAELASHQPAIQN 960
L R ++ EE W EK L+G Q +K AEL + AI+
Sbjct: 446 EELSDKERQYSELEEEWKAEKA----------SLSGTQTIK-------AELEQAKIAIEQ 488
Query: 961 VQETGE--KLMDVSNLGVPEIEQRLKLLNQAWSELKQLAANR 1000
+ G+ ++ ++ +PE+E++L Q + +L N+
Sbjct: 489 ARRVGDLARMSELQYGKIPELEKQLAAATQLEGKTMRLLRNK 530
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.313 0.127 0.352
Gapped
Lambda K H
0.267 0.0788 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 79,127,838
Number of extensions: 7969859
Number of successful extensions: 8810
Number of sequences better than 10.0: 1
Number of HSP's gapped: 8421
Number of HSP's successfully gapped: 590
Length of query: 1575
Length of database: 10,937,602
Length adjustment: 110
Effective length of query: 1465
Effective length of database: 6,058,662
Effective search space: 8875939830
Effective search space used: 8875939830
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.2 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 42 (21.9 bits)
S2: 66 (29.1 bits)