RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy3045
(267 letters)
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 68.2 bits (167), Expect = 3e-15
Identities = 28/60 (46%), Positives = 34/60 (56%), Gaps = 5/60 (8%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPVF-----RIDSVRKEDKGMYQCVIRNE 203
G+ TC EGNPV I+W+KDGKP+P+ N V I SV ED G+Y CV N
Sbjct: 2 GQSVTLTCPAEGNPVPNITWLKDGKPLPESNRFVASGSTLTIKSVSLEDSGLYTCVAENS 61
Score = 47.8 bits (114), Expect = 8e-08
Identities = 25/68 (36%), Positives = 32/68 (47%), Gaps = 11/68 (16%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYL 84
G+S L C A+ N W K +G +P ++R TL IK +EDSG Y
Sbjct: 2 GQSVTLTCPAEGNPVPNITWLK--DGKP----LPESNRFVASGSTLTIKSVSLEDSGLYT 55
Query: 85 CVVNNSVG 92
CV NS G
Sbjct: 56 CVAENSAG 63
Score = 38.2 bits (89), Expect = 2e-04
Identities = 12/22 (54%), Positives = 13/22 (59%)
Query: 241 FKCIASGNPTPEISWYLDGKKL 262
C A GNP P I+W DGK L
Sbjct: 7 LTCPAEGNPVPNITWLKDGKPL 28
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 63.4 bits (155), Expect = 3e-13
Identities = 28/83 (33%), Positives = 40/83 (48%), Gaps = 9/83 (10%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVP---------DHNEPVFRIDSVRKE 191
P + G A+FTC G+P T+SW KDG+P+ + I +V+ +
Sbjct: 7 PKDVEVQEGESARFTCTVTGDPDPTVSWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPD 66
Query: 192 DKGMYQCVIRNEQESAQASGELK 214
D+G Y CV N A+AS EL
Sbjct: 67 DEGKYTCVATNSAGEAEASAELT 89
Score = 48.4 bits (116), Expect = 1e-07
Identities = 23/78 (29%), Positives = 31/78 (39%), Gaps = 7/78 (8%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYL 84
GES C + WFK +G + + + + TL I + +D GKY
Sbjct: 15 GESARFTCTVTGDPDPTVSWFK--DGQPLRSSDRFKVTYEGGTYTLTISNVQPDDEGKYT 72
Query: 85 CVVNNSVGGESVETVLTV 102
CV NS G LTV
Sbjct: 73 CVATNSAGEAEASAELTV 90
Score = 39.5 bits (93), Expect = 1e-04
Identities = 11/27 (40%), Positives = 19/27 (70%)
Query: 241 FKCIASGNPTPEISWYLDGKKLVNAER 267
F C +G+P P +SW+ DG+ L +++R
Sbjct: 20 FTCTVTGDPDPTVSWFKDGQPLRSSDR 46
>gnl|CDD|143205 cd05728, Ig4_Contactin-2-like, Fourth Ig domain of the neural cell
adhesion molecule contactin-2 and similar proteins.
Ig4_Contactin-2-like: fourth Ig domain of the neural
cell adhesion molecule contactin-2. Contactins are
comprised of six Ig domains followed by four fibronectin
type III (FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-2 (aliases
TAG-1, axonin-1) facilitates cell adhesion by homophilic
binding between molecules in apposed membranes. The
first four Ig domains form the intermolecular binding
fragment which arranges as a compact U-shaped module by
contacts between Ig domains 1 and 4, and domains 2 and
3. It has been proposed that a linear zipper-like array
forms, from contactin-2 molecules alternatively provided
by the two apposed membranes.
Length = 85
Score = 60.7 bits (147), Expect = 3e-12
Identities = 26/75 (34%), Positives = 36/75 (48%), Gaps = 5/75 (6%)
Query: 146 IDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDHNE-----PVFRIDSVRKEDKGMYQCVI 200
D G ++ CK GNP W+K+G+P+ N RI + D GMYQCV
Sbjct: 11 ADIGSSLRWECKASGNPRPAYRWLKNGQPLASENRIEVEAGDLRITKLSLSDSGMYQCVA 70
Query: 201 RNEQESAQASGELKL 215
N+ + AS EL +
Sbjct: 71 ENKHGTIYASAELAV 85
Score = 35.3 bits (81), Expect = 0.005
Identities = 14/39 (35%), Positives = 21/39 (53%)
Query: 229 SDETLNPGPNYYFKCIASGNPTPEISWYLDGKKLVNAER 267
SD + G + ++C ASGNP P W +G+ L + R
Sbjct: 7 SDTEADIGSSLRWECKASGNPRPAYRWLKNGQPLASENR 45
Score = 31.0 bits (70), Expect = 0.12
Identities = 12/36 (33%), Positives = 19/36 (52%)
Query: 57 VPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNSVG 92
+ +R++ +G L I + + DSG Y CV N G
Sbjct: 40 LASENRIEVEAGDLRITKLSLSDSGMYQCVAENKHG 75
>gnl|CDD|143165 cd00096, Ig, Immunoglobulin domain. Ig: immunoglobulin (Ig) domain
found in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
this group are components of immunoglobulin, neuroglia,
cell surface glycoproteins, such as, T-cell receptors,
CD2, CD4, CD8, and membrane glycoproteins, such as,
butyrophilin and chondroitin sulfate proteoglycan core
protein. A predominant feature of most Ig domains is a
disulfide bridge connecting the two beta-sheets with a
tryptophan residue packed against the disulfide bond.
Length = 74
Score = 56.0 bits (134), Expect = 1e-10
Identities = 24/72 (33%), Positives = 30/72 (41%), Gaps = 13/72 (18%)
Query: 152 AQFTCKYEGNPVKTISWMKDGKPVPDHNEPVFR-------------IDSVRKEDKGMYQC 198
TC G P TI+W+K+GKP+P R I +V ED G Y C
Sbjct: 1 VTLTCLASGPPPPTITWLKNGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTYTC 60
Query: 199 VIRNEQESAQAS 210
V N + AS
Sbjct: 61 VASNSAGTVSAS 72
Score = 46.3 bits (109), Expect = 4e-07
Identities = 23/72 (31%), Positives = 26/72 (36%), Gaps = 7/72 (9%)
Query: 35 LLCEAQEN-----MWFK--FIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVV 87
L C A W K SS V + S TL I +EDSG Y CV
Sbjct: 3 LTCLASGPPPPTITWLKNGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTYTCVA 62
Query: 88 NNSVGGESVETV 99
+NS G S
Sbjct: 63 SNSAGTVSASVT 74
Score = 36.3 bits (83), Expect = 0.002
Identities = 11/24 (45%), Positives = 15/24 (62%)
Query: 241 FKCIASGNPTPEISWYLDGKKLVN 264
C+ASG P P I+W +GK L +
Sbjct: 3 LTCLASGPPPPTITWLKNGKPLPS 26
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 56.0 bits (135), Expect = 2e-10
Identities = 20/84 (23%), Positives = 29/84 (34%), Gaps = 10/84 (11%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDG----------KPVPDHNEPVFRIDSVRK 190
P T+ G +C+ G+P ++W K G + I +V
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTP 60
Query: 191 EDKGMYQCVIRNEQESAQASGELK 214
ED G Y C N SA + L
Sbjct: 61 EDSGTYTCAATNSSGSASSGTTLT 84
Score = 48.3 bits (115), Expect = 1e-07
Identities = 28/80 (35%), Positives = 33/80 (41%), Gaps = 10/80 (12%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSG--TLIIKEAKVEDSGK 82
GES L CEA + W+K + +A V + TL I EDSG
Sbjct: 9 GESVTLSCEASGSPPPEVTWYK---QGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGT 65
Query: 83 YLCVVNNSVGGESVETVLTV 102
Y C NS G S T LTV
Sbjct: 66 YTCAATNSSGSASSGTTLTV 85
Score = 34.8 bits (80), Expect = 0.007
Identities = 12/23 (52%), Positives = 16/23 (69%)
Query: 241 FKCIASGNPTPEISWYLDGKKLV 263
C ASG+P PE++WY G KL+
Sbjct: 14 LSCEASGSPPPEVTWYKQGGKLL 36
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 56.0 bits (135), Expect = 2e-10
Identities = 20/84 (23%), Positives = 29/84 (34%), Gaps = 10/84 (11%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDG----------KPVPDHNEPVFRIDSVRK 190
P T+ G +C+ G+P ++W K G + I +V
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTP 60
Query: 191 EDKGMYQCVIRNEQESAQASGELK 214
ED G Y C N SA + L
Sbjct: 61 EDSGTYTCAATNSSGSASSGTTLT 84
Score = 48.3 bits (115), Expect = 1e-07
Identities = 28/80 (35%), Positives = 33/80 (41%), Gaps = 10/80 (12%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSG--TLIIKEAKVEDSGK 82
GES L CEA + W+K + +A V + TL I EDSG
Sbjct: 9 GESVTLSCEASGSPPPEVTWYK---QGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGT 65
Query: 83 YLCVVNNSVGGESVETVLTV 102
Y C NS G S T LTV
Sbjct: 66 YTCAATNSSGSASSGTTLTV 85
Score = 34.8 bits (80), Expect = 0.007
Identities = 12/23 (52%), Positives = 16/23 (69%)
Query: 241 FKCIASGNPTPEISWYLDGKKLV 263
C ASG+P PE++WY G KL+
Sbjct: 14 LSCEASGSPPPEVTWYKQGGKLL 36
>gnl|CDD|143317 cd07693, Ig1_Robo, First immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors and similar proteins. Ig1_Robo:
domain similar to the first immunoglobulin (Ig)-like
domain in Robo (roundabout) receptors. Robo receptors
play a role in the development of the central nervous
system (CNS), and are receptors of Slit protein. Slit is
a repellant secreted by the neural cells in the midline.
Slit acts through Robo to prevent most neurons from
crossing the midline from either side. Three mammalian
Robo homologs (robo1, -2, and -3), and three mammalian
Slit homologs (Slit-1,-2, -3), have been identified.
Commissural axons, which cross the midline, express low
levels of Robo; longitudinal axons, which avoid the
midline, express high levels of Robo. robo1, -2, and -3
are expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 100
Score = 51.8 bits (124), Expect = 8e-09
Identities = 25/79 (31%), Positives = 35/79 (44%), Gaps = 16/79 (20%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPV--------------PDHNEPVFRID 186
P+ + G PA CK EG P TI W+K+G+P+ P + R+
Sbjct: 8 PSDLIVSKGDPATLNCKAEGRPTPTIQWLKNGQPLETDKDDPRSHRIVLPSGSLFFLRVV 67
Query: 187 SVRK--EDKGMYQCVIRNE 203
RK D+G+Y CV N
Sbjct: 68 HGRKGRSDEGVYVCVAHNS 86
Score = 42.9 bits (101), Expect = 1e-05
Identities = 17/43 (39%), Positives = 21/43 (48%)
Query: 221 PPVIKESFSDETLNPGPNYYFKCIASGNPTPEISWYLDGKKLV 263
PP I E SD ++ G C A G PTP I W +G+ L
Sbjct: 1 PPRIVEHPSDLIVSKGDPATLNCKAEGRPTPTIQWLKNGQPLE 43
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 47.8 bits (114), Expect = 1e-07
Identities = 21/67 (31%), Positives = 26/67 (38%), Gaps = 1/67 (1%)
Query: 140 EPTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPVFRIDSVRKEDKGMYQCV 199
P+ + G TC GNP +W KDG P+ F +V ED G Y CV
Sbjct: 5 TPSPTVVFEGEDVTLTCSAPGNPPPNYTWYKDGVPLSSSQNGFF-TPNVSAEDSGTYTCV 63
Query: 200 IRNEQES 206
N
Sbjct: 64 ASNGGGG 70
Score = 37.0 bits (86), Expect = 8e-04
Identities = 15/42 (35%), Positives = 20/42 (47%), Gaps = 2/42 (4%)
Query: 221 PPVIKESFSDETLNPGPNYYFKCIASGNPTPEISWYLDGKKL 262
PV+ S + + G + C A GNP P +WY DG L
Sbjct: 1 KPVLTPSPT--VVFEGEDVTLTCSAPGNPPPNYTWYKDGVPL 40
Score = 28.9 bits (65), Expect = 0.73
Identities = 23/79 (29%), Positives = 28/79 (35%), Gaps = 18/79 (22%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYL 84
GE L C A N W+K +G + EDSG Y
Sbjct: 14 GEDVTLTCSAPGNPPPNYTWYK--DGV----------PLSSSQNGFFTPNVSAEDSGTYT 61
Query: 85 CVVNNSVGGE-SVETVLTV 102
CV +N GG+ S LTV
Sbjct: 62 CVASNGGGGKTSNPVTLTV 80
>gnl|CDD|143201 cd05724, Ig2_Robo, Second immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig2_Robo: domain similar to the
second immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 86
Score = 47.8 bits (114), Expect = 2e-07
Identities = 26/60 (43%), Positives = 33/60 (55%), Gaps = 10/60 (16%)
Query: 160 GNPVKTISWMKDGKPVPDHNEPV-------FRIDSVRKEDKGMYQCVIRN---EQESAQA 209
G+P T+SW KDG+P+ NE V I RK D+G Y+CV N E+ESA A
Sbjct: 23 GHPEPTVSWRKDGQPLNLDNERVRIVDDGNLLIAEARKSDEGTYKCVATNMVGERESAAA 82
Score = 42.8 bits (101), Expect = 9e-06
Identities = 26/57 (45%), Positives = 30/57 (52%), Gaps = 5/57 (8%)
Query: 51 SSRKVAVPLND---RVKQVS-GTLIIKEAKVEDSGKYLCVVNNSVGG-ESVETVLTV 102
S RK PLN RV+ V G L+I EA+ D G Y CV N VG ES L+V
Sbjct: 30 SWRKDGQPLNLDNERVRIVDDGNLLIAEARKSDEGTYKCVATNMVGERESAAARLSV 86
Score = 26.6 bits (59), Expect = 5.2
Identities = 8/17 (47%), Positives = 11/17 (64%)
Query: 247 GNPTPEISWYLDGKKLV 263
G+P P +SW DG+ L
Sbjct: 23 GHPEPTVSWRKDGQPLN 39
>gnl|CDD|143206 cd05729, Ig2_FGFR_like, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor and similar
proteins. Ig2_FGFR_like: domain similar to the second
immunoglobulin (Ig)-like domain of fibroblast growth
factor (FGF) receptor. FGF receptors bind FGF signaling
polypeptides. FGFs participate in multiple processes
such as morphogenesis, development, and angiogenesis.
FGFs bind to four FGF receptor tyrosine kinases (FGFR1,
-2, -3, -4). Receptor diversity is controlled by
alternative splicing producing splice variants with
different ligand binding characteristics and different
expression patterns. FGFRs have an extracellular region
comprised of three Ig-like domains, a single
transmembrane helix, and an intracellular tyrosine
kinase domain. Ligand binding and specificity reside in
the Ig-like domains 2 and 3, and the linker region that
connects these two. FGFR activation and signaling depend
on FGF-induced dimerization, a process involving cell
surface heparin or heparin sulfate proteoglycans. This
group also contains fibroblast growth factor (FGF)
receptor_like-1(FGFRL1). FGFRL1 does not have a protein
tyrosine kinase domain at its C terminus; neither does
its cytoplasmic domain appear to interact with a
signaling partner. It has been suggested that FGFRL1 may
not have any direct signaling function, but instead acts
as a decoy receptor trapping FGFs and preventing them
from binding other receptors.
Length = 85
Score = 46.6 bits (111), Expect = 4e-07
Identities = 23/79 (29%), Positives = 37/79 (46%), Gaps = 14/79 (17%)
Query: 150 RPA----QFTCKYEGNPVKTISWMKDGKP-VPDHNEPVFR---------IDSVRKEDKGM 195
PA + C GNP TI+W+KDGKP +H ++ ++SV D G
Sbjct: 6 VPAGSTVRLKCPASGNPRPTITWLKDGKPFKKEHRIGGYKVRKKKWTLILESVVPSDSGK 65
Query: 196 YQCVIRNEQESAQASGELK 214
Y C++ N+ S + ++
Sbjct: 66 YTCIVENKYGSINHTYKVD 84
Score = 42.8 bits (101), Expect = 1e-05
Identities = 14/27 (51%), Positives = 15/27 (55%)
Query: 241 FKCIASGNPTPEISWYLDGKKLVNAER 267
KC ASGNP P I+W DGK R
Sbjct: 14 LKCPASGNPRPTITWLKDGKPFKKEHR 40
Score = 42.4 bits (100), Expect = 1e-05
Identities = 23/72 (31%), Positives = 32/72 (44%), Gaps = 8/72 (11%)
Query: 27 KPGGESFALLCEAQEN-----MWFKFIEGSSRKVAVPLND-RVKQVSGTLIIKEAKVEDS 80
P G + L C A N W K +G K + +V++ TLI++ DS
Sbjct: 6 VPAGSTVRLKCPASGNPRPTITWLK--DGKPFKKEHRIGGYKVRKKKWTLILESVVPSDS 63
Query: 81 GKYLCVVNNSVG 92
GKY C+V N G
Sbjct: 64 GKYTCIVENKYG 75
>gnl|CDD|212460 cd05723, Ig4_Neogenin, Fourth immunoglobulin (Ig)-like domain in
neogenin and similar proteins. Ig4_Neogenin: fourth
immunoglobulin (Ig)-like domain in neogenin and related
proteins. Neogenin is a cell surface protein which is
expressed in the developing nervous system of vertebrate
embryos in the growing nerve cells. It is also expressed
in other embryonic tissues, and may play a general role
in developmental processes such as cell migration,
cell-cell recognition, and tissue growth regulation.
Included in this group is the tumor suppressor protein
DCC, which is deleted in colorectal carcinoma . DCC and
neogenin each have four Ig-like domains followed by six
fibronectin type III domains, a transmembrane domain,
and an intracellular domain.
Length = 71
Score = 45.3 bits (107), Expect = 8e-07
Identities = 23/69 (33%), Positives = 34/69 (49%), Gaps = 12/69 (17%)
Query: 154 FTCKYEGNPVKTISWMKDG---------KPVPDHNEPVFRIDSVRKEDKGMYQCVIRNEQ 204
F C+ G P T+ W+K+G K V +HN V + K D+G YQC+ N+
Sbjct: 4 FECEVTGKPTPTVKWVKNGDMVIPSDYFKIVKEHNLQVL---GLVKSDEGFYQCIAENDV 60
Query: 205 ESAQASGEL 213
+ QA +L
Sbjct: 61 GNVQAGAQL 69
Score = 27.2 bits (60), Expect = 2.0
Identities = 8/26 (30%), Positives = 16/26 (61%)
Query: 241 FKCIASGNPTPEISWYLDGKKLVNAE 266
F+C +G PTP + W +G ++ ++
Sbjct: 4 FECEVTGKPTPTVKWVKNGDMVIPSD 29
>gnl|CDD|143265 cd05857, Ig2_FGFR, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor. Ig2_FGFR:
second immunoglobulin (Ig)-like domain of fibroblast
growth factor (FGF) receptor. FGF receptors bind FGF
signaling polypeptides. FGFs participate in multiple
processes such as morphogenesis, development, and
angiogenesis. FGFs bind to four FGF receptor tyrosine
kinases (FGFR1, -2, -3, -4). Receptor diversity is
controlled by alternative splicing producing splice
variants with different ligand binding characteristics
and different expression patterns. FGFRs have an
extracellular region comprised of three IG-like domains,
a single transmembrane helix, and an intracellular
tyrosine kinase domain. Ligand binding and specificity
reside in the Ig-like domains 2 and 3, and the linker
region that connects these two. FGFR activation and
signaling depend on FGF-induced dimerization, a process
involving cell surface heparin or heparin sulfate
proteoglycans.
Length = 85
Score = 45.6 bits (108), Expect = 1e-06
Identities = 23/75 (30%), Positives = 34/75 (45%), Gaps = 10/75 (13%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPV-PDHNEPVFRI---------DSVRKEDKGMYQC 198
+F C GNP T+ W+K+GK +H +++ +SV DKG Y C
Sbjct: 9 ANTVKFRCPAAGNPTPTMRWLKNGKEFKQEHRIGGYKVRNQHWSLIMESVVPSDKGNYTC 68
Query: 199 VIRNEQESAQASGEL 213
V+ NE S + L
Sbjct: 69 VVENEYGSINHTYHL 83
Score = 34.5 bits (79), Expect = 0.008
Identities = 11/20 (55%), Positives = 15/20 (75%)
Query: 241 FKCIASGNPTPEISWYLDGK 260
F+C A+GNPTP + W +GK
Sbjct: 14 FRCPAAGNPTPTMRWLKNGK 33
Score = 26.7 bits (59), Expect = 4.4
Identities = 11/31 (35%), Positives = 16/31 (51%)
Query: 62 RVKQVSGTLIIKEAKVEDSGKYLCVVNNSVG 92
+V+ +LI++ D G Y CVV N G
Sbjct: 45 KVRNQHWSLIMESVVPSDKGNYTCVVENEYG 75
>gnl|CDD|143224 cd05747, Ig5_Titin_like, M5, fifth immunoglobulin (Ig)-like domain
of human titin C terminus and similar proteins.
Ig5_Titin_like: domain similar to the M5, fifth
immunoglobulin (Ig)-like domain from the human titin C
terminus. Titin (also called connectin) is a fibrous
sarcomeric protein specifically found in vertebrate
striated muscle. Titin is gigantic; depending on isoform
composition it ranges from 2970 to 3700 kDa, and is of a
length that spans half a sarcomere. Titin largely
consists of multiple repeats of Ig-like and fibronectin
type 3 (FN-III)-like domains. Titin connects the ends of
myosin thick filaments to Z disks and extends along the
thick filament to the H zone, and appears to function
similar to an elastic band, keeping the myosin filaments
centered in the sarcomere during muscle contraction or
stretching.
Length = 92
Score = 45.0 bits (106), Expect = 2e-06
Identities = 21/79 (26%), Positives = 38/79 (48%), Gaps = 9/79 (11%)
Query: 140 EPTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDHN---------EPVFRIDSVRK 190
+P T+ G A+F+C +G P T++WM++G+ + + F I V+
Sbjct: 9 KPRSLTVSEGESARFSCDVDGEPAPTVTWMREGQIIVSSQRHQITSTEYKSTFEISKVQM 68
Query: 191 EDKGMYQCVIRNEQESAQA 209
D+G Y V+ N + +A
Sbjct: 69 SDEGNYTVVVENSEGKQEA 87
Score = 28.9 bits (64), Expect = 0.91
Identities = 11/36 (30%), Positives = 22/36 (61%)
Query: 232 TLNPGPNYYFKCIASGNPTPEISWYLDGKKLVNAER 267
T++ G + F C G P P ++W +G+ +V+++R
Sbjct: 14 TVSEGESARFSCDVDGEPAPTVTWMREGQIIVSSQR 49
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 44.7 bits (105), Expect = 2e-06
Identities = 20/68 (29%), Positives = 26/68 (38%), Gaps = 6/68 (8%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVK-TISWMKDGK-----PVPDHNEPVFRIDSVRKEDKG 194
++ G TC EG P TISW ++G + + SV ED G
Sbjct: 7 SPSPSVTSGGGVTLTCSAEGGPPPPTISWYRNGSISGGSGGLGSSGSTLTLSSVTSEDSG 66
Query: 195 MYQCVIRN 202
Y CV N
Sbjct: 67 TYTCVASN 74
Score = 35.0 bits (80), Expect = 0.004
Identities = 15/61 (24%), Positives = 20/61 (32%)
Query: 29 GGESFALLCEAQENMWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVN 88
G L C A+ I + + TL + EDSG Y CV +
Sbjct: 14 SGGGVTLTCSAEGGPPPPTISWYRNGSISGGSGGLGSSGSTLTLSSVTSEDSGTYTCVAS 73
Query: 89 N 89
N
Sbjct: 74 N 74
>gnl|CDD|143202 cd05725, Ig3_Robo, Third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig3_Robo: domain similar to the
third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 69
Score = 44.3 bits (105), Expect = 2e-06
Identities = 19/67 (28%), Positives = 31/67 (46%), Gaps = 5/67 (7%)
Query: 152 AQFTCKYEGNPVKTISWMKDGKPVPDH-----NEPVFRIDSVRKEDKGMYQCVIRNEQES 206
+F C+ G+PV T+ W K+ +P ++ +I +V D+G Y C N
Sbjct: 1 VEFQCEVGGDPVPTVLWRKEDGELPKGRAEILDDKSLKIRNVTAGDEGSYTCEAENMVGK 60
Query: 207 AQASGEL 213
+AS L
Sbjct: 61 IEASASL 67
Score = 32.8 bits (75), Expect = 0.021
Identities = 12/34 (35%), Positives = 14/34 (41%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
+L I+ D G Y C N VG LTV
Sbjct: 36 SLKIRNVTAGDEGSYTCEAENMVGKIEASASLTV 69
Score = 26.6 bits (59), Expect = 3.8
Identities = 7/22 (31%), Positives = 12/22 (54%)
Query: 241 FKCIASGNPTPEISWYLDGKKL 262
F+C G+P P + W + +L
Sbjct: 3 FQCEVGGDPVPTVLWRKEDGEL 24
>gnl|CDD|143208 cd05731, Ig3_L1-CAM_like, Third immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig3_L1-CAM_like:
domain similar to the third immunoglobulin (Ig)-like
domain of the L1 cell adhesion molecule (CAM). L1
belongs to the L1 subfamily of cell adhesion molecules
(CAMs) and is comprised of an extracellular region
having six Ig-like domains and five fibronectin type III
domains, a transmembrane region and an intracellular
domain. L1 is primarily expressed in the nervous system
and is involved in its development and function. L1 is
associated with an X-linked recessive disorder, X-linked
hydrocephalus, MASA syndrome, or spastic paraplegia type
1, that involves abnormalities of axonal growth. This
group also contains the chicken neuron-glia cell
adhesion molecule, Ng-CAM and human neurofascin.
Length = 71
Score = 43.9 bits (104), Expect = 3e-06
Identities = 21/62 (33%), Positives = 30/62 (48%), Gaps = 6/62 (9%)
Query: 153 QFTCKYEGNPVKTISWMKDGKPVP------DHNEPVFRIDSVRKEDKGMYQCVIRNEQES 206
C EG P ISW+K G +P ++ +ID+V +ED G Y+C N S
Sbjct: 2 LLECIAEGLPTPEISWIKIGGELPADRTKFENFNKTLKIDNVSEEDDGEYRCTASNSLGS 61
Query: 207 AQ 208
A+
Sbjct: 62 AR 63
Score = 32.7 bits (75), Expect = 0.021
Identities = 11/14 (78%), Positives = 11/14 (78%)
Query: 243 CIASGNPTPEISWY 256
CIA G PTPEISW
Sbjct: 5 CIAEGLPTPEISWI 18
Score = 28.9 bits (65), Expect = 0.59
Identities = 14/35 (40%), Positives = 19/35 (54%), Gaps = 2/35 (5%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVT 103
TL I ED G+Y C +NS+G S ++VT
Sbjct: 37 TLKIDNVSEEDDGEYRCTASNSLG--SARHTISVT 69
>gnl|CDD|143179 cd04978, Ig4_L1-NrCAM_like, Fourth immunoglobulin (Ig)-like domain
of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule),
and NrCAM (Ng-CAM-related). Ig4_L1-NrCAM_like: fourth
immunoglobulin (Ig)-like domain of L1, Ng-CAM
(Neuron-glia CAM cell adhesion molecule), and NrCAM
(Ng-CAM-related). These proteins belong to the L1
subfamily of cell adhesion molecules (CAMs) and are
comprised of an extracellular region having six Ig-like
domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. These
molecules are primarily expressed in the nervous system.
L1 is associated with an X-linked recessive disorder,
X-linked hydrocephalus, MASA syndrome, or spastic
paraplegia type 1, that involves abnormalities of axonal
growth.
Length = 76
Score = 42.8 bits (101), Expect = 8e-06
Identities = 20/69 (28%), Positives = 29/69 (42%), Gaps = 8/69 (11%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHNE-PVFRIDS-------VRKEDKGMYQCVI 200
G + C+ EG P TI+W +G P+ + P R+D V+ D +YQC
Sbjct: 1 GETGRLDCEAEGIPQPTITWRLNGVPIEELPPDPRRRVDGGTLILSNVQPNDTAVYQCNA 60
Query: 201 RNEQESAQA 209
N A
Sbjct: 61 SNVHGYLLA 69
Score = 33.9 bits (78), Expect = 0.011
Identities = 10/30 (33%), Positives = 13/30 (43%)
Query: 236 GPNYYFKCIASGNPTPEISWYLDGKKLVNA 265
G C A G P P I+W L+G +
Sbjct: 1 GETGRLDCEAEGIPQPTITWRLNGVPIEEL 30
>gnl|CDD|143207 cd05730, Ig3_NCAM-1_like, Third immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig3_NCAM-1_like: domain similar to the third
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-1 (NCAM). NCAM plays important roles in
the development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-non-NCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves Ig1, Ig2, and Ig3. By
this model, Ig1,and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain.
Length = 95
Score = 43.0 bits (101), Expect = 9e-06
Identities = 26/92 (28%), Positives = 39/92 (42%), Gaps = 9/92 (9%)
Query: 133 PPLAAGVEPTVQ-TIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPV-FRIDS--- 187
PP + V T + G+ C +G P T++W KDG+P+ E F D
Sbjct: 1 PPTIRARQSEVNATANLGQSVTLACDADGFPEPTMTWTKDGEPIESGEEKYSFNEDGSEM 60
Query: 188 ----VRKEDKGMYQCVIRNEQESAQASGELKL 215
V K D+ Y C+ N+ +A LK+
Sbjct: 61 TILDVDKLDEAEYTCIAENKAGEQEAEIHLKV 92
Score = 29.9 bits (67), Expect = 0.42
Identities = 16/48 (33%), Positives = 25/48 (52%), Gaps = 2/48 (4%)
Query: 221 PPVI--KESFSDETLNPGPNYYFKCIASGNPTPEISWYLDGKKLVNAE 266
PP I ++S + T N G + C A G P P ++W DG+ + + E
Sbjct: 1 PPTIRARQSEVNATANLGQSVTLACDADGFPEPTMTWTKDGEPIESGE 48
Score = 28.4 bits (63), Expect = 1.4
Identities = 19/80 (23%), Positives = 30/80 (37%), Gaps = 8/80 (10%)
Query: 30 GESFALLCEAQENMWFKFIEGSSRKVAVPLNDRVKQVS-----GTLIIKEAKVEDSGKYL 84
G+S L C+A F + K P+ ++ S + I + D +Y
Sbjct: 18 GQSVTLACDADG---FPEPTMTWTKDGEPIESGEEKYSFNEDGSEMTILDVDKLDEAEYT 74
Query: 85 CVVNNSVGGESVETVLTVTA 104
C+ N G + E L V A
Sbjct: 75 CIAENKAGEQEAEIHLKVFA 94
>gnl|CDD|143240 cd05763, Ig_1, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_1: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 75
Score = 41.8 bits (98), Expect = 1e-05
Identities = 23/74 (31%), Positives = 33/74 (44%), Gaps = 14/74 (18%)
Query: 152 AQFTCKYEGNPVKTISWMKDG------------KPVPDHNEPVFRIDSVRKEDKGMYQCV 199
A+ C G+P I+W KDG +P+ + VF I V+ ED G+Y C
Sbjct: 1 ARLECAATGHPTPQIAWQKDGGTDFPAARERRMHVMPE--DDVFFIVDVKIEDTGVYSCT 58
Query: 200 IRNEQESAQASGEL 213
+N S A+ L
Sbjct: 59 AQNTAGSISANATL 72
Score = 29.5 bits (66), Expect = 0.34
Identities = 13/33 (39%), Positives = 17/33 (51%)
Query: 70 LIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
I + K+ED+G Y C N+ G S LTV
Sbjct: 42 FFIVDVKIEDTGVYSCTAQNTAGSISANATLTV 74
Score = 29.5 bits (66), Expect = 0.42
Identities = 10/18 (55%), Positives = 15/18 (83%)
Query: 242 KCIASGNPTPEISWYLDG 259
+C A+G+PTP+I+W DG
Sbjct: 4 ECAATGHPTPQIAWQKDG 21
>gnl|CDD|143169 cd04968, Ig3_Contactin_like, Third Ig domain of contactin.
Ig3_Contactin_like: Third Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four fibronectin
type III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of
neuronal act ivity in the rat auditory system.
Contactin-5 is highly expressed in the adult human brain
in the occipital lobe and in the amygdala. Contactin-1
is differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 88
Score = 41.7 bits (98), Expect = 2e-05
Identities = 17/48 (35%), Positives = 24/48 (50%), Gaps = 5/48 (10%)
Query: 160 GNPVKTISWMK-DGKPVP----DHNEPVFRIDSVRKEDKGMYQCVIRN 202
GNPV I W K DG + V +I +++ ED+G Y+C N
Sbjct: 27 GNPVPQIKWRKVDGSMPSSAEISMSGAVLKIPNIQFEDEGTYECEAEN 74
Score = 32.1 bits (73), Expect = 0.057
Identities = 17/48 (35%), Positives = 22/48 (45%), Gaps = 1/48 (2%)
Query: 221 PPVIKESFSDETLNPGPNYYFKCIASGNPTPEISWY-LDGKKLVNAER 267
P +I D G N +C A GNP P+I W +DG +AE
Sbjct: 1 PSIIVVFPKDTYALKGQNVTLECFALGNPVPQIKWRKVDGSMPSSAEI 48
>gnl|CDD|143264 cd05856, Ig2_FGFRL1-like, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor_like-1(FGFRL1).
Ig2_FGFRL1-like: second immunoglobulin (Ig)-like domain
of fibroblast growth factor (FGF)
receptor_like-1(FGFRL1). FGFRL1 is comprised of a signal
peptide, three extracellular Ig-like modules, a
transmembrane segment, and a short intracellular domain.
FGFRL1 is expressed preferentially in skeletal tissues.
Similar to FGF receptors, the expressed protein
interacts specifically with heparin and with FGF2.
FGFRL1 does not have a protein tyrosine kinase domain at
its C terminus; neither does its cytoplasmic domain
appear to interact with a signaling partner. It has been
suggested that FGFRL1 may not have any direct signaling
function, but instead acts as a decoy receptor trapping
FGFs and preventing them from binding other receptors.
Length = 82
Score = 40.6 bits (95), Expect = 6e-05
Identities = 14/25 (56%), Positives = 17/25 (68%)
Query: 242 KCIASGNPTPEISWYLDGKKLVNAE 266
KC+ASGNP P+I+W D K L E
Sbjct: 15 KCVASGNPRPDITWLKDNKPLTPTE 39
Score = 37.1 bits (86), Expect = 9e-04
Identities = 17/61 (27%), Positives = 27/61 (44%), Gaps = 7/61 (11%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHN-------EPVFRIDSVRKEDKGMYQCVIR 201
G + C GNP I+W+KD KP+ + + +++ ED G Y C +
Sbjct: 9 GSSVRLKCVASGNPRPDITWLKDNKPLTPTEIGESRKKKWTLSLKNLKPEDSGKYTCHVS 68
Query: 202 N 202
N
Sbjct: 69 N 69
Score = 36.3 bits (84), Expect = 0.002
Identities = 23/71 (32%), Positives = 31/71 (43%), Gaps = 9/71 (12%)
Query: 27 KPGGESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSG 81
+P G S L C A N W K ++ + ++ TL +K K EDSG
Sbjct: 6 RPVGSSVRLKCVASGNPRPDITWLK----DNKPLTPTEIGESRKKKWTLSLKNLKPEDSG 61
Query: 82 KYLCVVNNSVG 92
KY C V+N G
Sbjct: 62 KYTCHVSNRAG 72
>gnl|CDD|143231 cd05754, Ig3_Perlecan_like, Third immunoglobulin (Ig)-like domain
found in Perlecan and similar proteins.
Ig3_Perlecan_like: domain similar to the third
immunoglobulin (Ig)-like domain found in Perlecan.
Perlecan is a large multi-domain heparin sulfate
proteoglycan, important in tissue development and
organogenesis. Perlecan can be represented as 5 major
portions; its fourth major portion (domain IV) is a
tandem repeat of immunoglobulin-like domains (Ig2-Ig15),
which can vary in size due to alternative splicing.
Perlecan binds many cellular and extracellular ligands.
Its domain IV region has many binding sites. Some of
these have been mapped at the level of individual
Ig-like domains, including a site restricted to the Ig5
domain for heparin/sulfatide, a site restricted to the
Ig3 domain for nidogen-1 and nidogen-2, a site
restricted to Ig4-5 for fibronectin, and sites
restricted to Ig2 and to Ig13-15 for fibulin-2.
Length = 85
Score = 39.5 bits (92), Expect = 1e-04
Identities = 22/79 (27%), Positives = 36/79 (45%), Gaps = 6/79 (7%)
Query: 140 EPTVQTIDFGRPAQFTCKYEG-NPVKTISWMKDGKPVP----DHNEPVFRIDSVRKEDKG 194
EP Q + G F C+ + +P T+ W + G +P D N + I +V+ D G
Sbjct: 7 EPRSQEVRPGADVSFICRAKSKSPAYTLVWTRVGGGLPSRAMDFNG-ILTIRNVQLSDAG 65
Query: 195 MYQCVIRNEQESAQASGEL 213
Y C N ++ +A+ L
Sbjct: 66 TYVCTGSNMLDTDEATATL 84
Score = 26.4 bits (58), Expect = 5.8
Identities = 10/32 (31%), Positives = 17/32 (53%)
Query: 58 PLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNN 89
L R +G L I+ ++ D+G Y+C +N
Sbjct: 42 GLPSRAMDFNGILTIRNVQLSDAGTYVCTGSN 73
>gnl|CDD|143178 cd04977, Ig1_NCAM-1_like, First immunoglobulin (Ig)-like domain
of neural cell adhesion molecule NCAM-1 and similar
proteins. Ig1_NCAM-1 like: first immunoglobulin
(Ig)-like domain of neural cell adhesion molecule
NCAM-1. NCAM-1 plays important roles in the development
and regeneration of the central nervous system, in
synaptogenesis and neural migration. NCAM mediates
cell-cell and cell-substratum recognition and adhesion
via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate
dimerization of NCAM molecules situated on the same
cell surface (cis interactions), and Ig3 domains
mediate interactions between NCAM molecules expressed
on the surface of opposing cells (trans interactions),
through binding to the Ig1 and Ig2 domains. The
adhesive ability of NCAM is modulated by the addition
of polysialic acid chains to the fifth Ig-like domain.
Also included in this group is NCAM-2 (also known as
OCAM/mamFas II and RNCAM). NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE).
Length = 92
Score = 39.8 bits (93), Expect = 1e-04
Identities = 26/79 (32%), Positives = 34/79 (43%), Gaps = 14/79 (17%)
Query: 30 GESFALLC----EAQENMWF-----KFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDS 80
GES LC E ++ WF K + V + V TL I A +ED+
Sbjct: 15 GESKFFLCQVIGEPKDISWFSPNGEKLVTQQQISVV-----QNDDVRSTLTIYNANIEDA 69
Query: 81 GKYLCVVNNSVGGESVETV 99
G Y CV ++ G ES TV
Sbjct: 70 GIYKCVATDAKGTESEATV 88
Score = 38.3 bits (89), Expect = 4e-04
Identities = 24/85 (28%), Positives = 33/85 (38%), Gaps = 12/85 (14%)
Query: 135 LAAGVEPTVQTIDFGRPAQFTCKYEGNPVKTISWMKDG--KPVPDHNEPVFRIDSVRK-- 190
L + P+ I G F C+ G P K ISW K V V + D VR
Sbjct: 1 LQVDIVPSQGEISVGESKFFLCQVIGEP-KDISWFSPNGEKLVTQQQISVVQNDDVRSTL 59
Query: 191 -------EDKGMYQCVIRNEQESAQ 208
ED G+Y+CV + + +
Sbjct: 60 TIYNANIEDAGIYKCVATDAKGTES 84
>gnl|CDD|143223 cd05746, Ig4_Peroxidasin, Fourth immunoglobulin (Ig)-like domain of
peroxidasin. Ig4_Peroxidasin: the fourth immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted, and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells, which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 69
Score = 38.3 bits (89), Expect = 2e-04
Identities = 25/67 (37%), Positives = 31/67 (46%), Gaps = 6/67 (8%)
Query: 153 QFTCKYEGNPVKTISWMKDGKPVPD----HNEP--VFRIDSVRKEDKGMYQCVIRNEQES 206
Q C +G+P TI+W KDG V + H P I V D+G Y+CV RN
Sbjct: 2 QIPCSAQGDPEPTITWNKDGVQVTESGKFHISPEGYLAIRDVGVADQGRYECVARNTIGY 61
Query: 207 AQASGEL 213
A S L
Sbjct: 62 ASVSMVL 68
Score = 35.2 bits (81), Expect = 0.003
Identities = 15/34 (44%), Positives = 21/34 (61%)
Query: 68 GTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLT 101
G L I++ V D G+Y CV N++G SV VL+
Sbjct: 36 GYLAIRDVGVADQGRYECVARNTIGYASVSMVLS 69
>gnl|CDD|143215 cd05738, Ig2_RPTP_IIa_LAR_like, Second immunoglobulin (Ig)-like
domain of the receptor protein tyrosine phosphatase
(RPTP)-F, also known as LAR. Ig2_RPTP_IIa_LAR_like:
domain similar to the second immunoglobulin (Ig)-like
domain found in the receptor protein tyrosine
phosphatase (RPTP)-F, also known as LAR. LAR belongs to
the RPTP type IIa subfamily. Members of this subfamily
are cell adhesion molecule-like proteins involved in
central nervous system (CNS) development. They have
large extracellular portions, comprised of multiple
Ig-like domains and two to nine fibronectin type III
(FNIII) domains, and a cytoplasmic portion having two
tandem phosphatase domains.
Length = 74
Score = 38.5 bits (89), Expect = 2e-04
Identities = 26/65 (40%), Positives = 33/65 (50%), Gaps = 12/65 (18%)
Query: 35 LLCEAQEN-----MWFK-FIEGSSRKVAVPLNDRVKQV-SGTLIIKEAKVEDSGKYLCVV 87
+LC A N WFK F+ V N R+KQ+ SG L I+ ++ D GKY CV
Sbjct: 3 MLCAASGNPDPEITWFKDFL-----PVDTTSNGRIKQLRSGALQIENSEESDQGKYECVA 57
Query: 88 NNSVG 92
NS G
Sbjct: 58 TNSAG 62
Score = 31.9 bits (72), Expect = 0.051
Identities = 22/75 (29%), Positives = 29/75 (38%), Gaps = 11/75 (14%)
Query: 152 AQFTCKYEGNPVKTISWMKDGKPVPDHNEPVFRIDSVRKEDKGMYQCVIRNEQESAQASG 211
A C GNP I+W KD PV + +++ G Q I N +ES Q
Sbjct: 1 ATMLCAASGNPDPEITWFKDFLPVDTTSN-----GRIKQLRSGALQ--IENSEESDQGKY 53
Query: 212 EL----KLGGRFDPP 222
E G R+ P
Sbjct: 54 ECVATNSAGTRYSAP 68
Score = 31.9 bits (72), Expect = 0.056
Identities = 11/16 (68%), Positives = 13/16 (81%)
Query: 243 CIASGNPTPEISWYLD 258
C ASGNP PEI+W+ D
Sbjct: 5 CAASGNPDPEITWFKD 20
>gnl|CDD|143222 cd05745, Ig3_Peroxidasin, Third immunoglobulin (Ig)-like domain of
peroxidasin. Ig3_Peroxidasin: the third immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 74
Score = 38.4 bits (89), Expect = 3e-04
Identities = 18/56 (32%), Positives = 25/56 (44%), Gaps = 6/56 (10%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVP-DHNEPV-----FRIDSVRKEDKGMYQC 198
G+ F C+ +G P I+W K G + D V RI V D+G Y+C
Sbjct: 2 GQTVDFLCEAQGYPQPVIAWTKGGSQLSVDRRHLVLSSGTLRISRVALHDQGQYEC 57
Score = 34.1 bits (78), Expect = 0.009
Identities = 29/80 (36%), Positives = 34/80 (42%), Gaps = 14/80 (17%)
Query: 30 GESFALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQV--SGTLIIKEAKVEDSGK 82
G++ LCEAQ W K GS V DR V SGTL I + D G+
Sbjct: 2 GQTVDFLCEAQGYPQPVIAWTK--GGSQLSV-----DRRHLVLSSGTLRISRVALHDQGQ 54
Query: 83 YLCVVNNSVGGESVETVLTV 102
Y C N VG + LTV
Sbjct: 55 YECQAVNIVGSQRTVAQLTV 74
Score = 28.8 bits (64), Expect = 0.65
Identities = 10/22 (45%), Positives = 12/22 (54%)
Query: 241 FKCIASGNPTPEISWYLDGKKL 262
F C A G P P I+W G +L
Sbjct: 7 FLCEAQGYPQPVIAWTKGGSQL 28
>gnl|CDD|143214 cd05737, Ig_Myomesin_like_C, C-temrinal immunoglobulin (Ig)-like
domain of myomesin and M-protein. Ig_Myomesin_like_C:
domain similar to the C-temrinal immunoglobulin
(Ig)-like domain of myomesin and M-protein. Myomesin and
M-protein are both structural proteins localized to the
M-band, a transverse structure in the center of the
sarcomere, and are candidates for M-band bridges. Both
proteins are modular, consisting mainly of repetitive
Ig-like and fibronectin type III (FnIII) domains.
Myomesin is expressed in all types of vertebrate
striated muscle; M-protein has a muscle-type specific
expression pattern. Myomesin is present in both slow and
fast fibers; M-protein is present only in fast fibers.
It has been suggested that myomesin acts as a molecular
spring with alternative splicing as a means of modifying
its elasticity.
Length = 92
Score = 38.6 bits (90), Expect = 3e-04
Identities = 22/73 (30%), Positives = 32/73 (43%), Gaps = 10/73 (13%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVP--DH--------NEPVFRIDSVRK 190
P V TI G+ TC G+P +SW+K+ + + DH I V
Sbjct: 8 PDVVTIMEGKTLNLTCTVFGDPDPEVSWLKNDQALALSDHYNVKVEQGKYASLTIKGVSS 67
Query: 191 EDKGMYQCVIRNE 203
ED G Y V++N+
Sbjct: 68 EDSGKYGIVVKNK 80
Score = 34.0 bits (78), Expect = 0.015
Identities = 17/34 (50%), Positives = 22/34 (64%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
+L IK EDSGKY VV N GGE+V+ ++V
Sbjct: 59 SLTIKGVSSEDSGKYGIVVKNKYGGETVDVTVSV 92
Score = 30.6 bits (69), Expect = 0.24
Identities = 16/53 (30%), Positives = 24/53 (45%), Gaps = 9/53 (16%)
Query: 215 LGGRFDPPVIKESFSDETLNPGPNYYFKCIASGNPTPEISWYLDGKKLVNAER 267
+GG D I E +TLN C G+P PE+SW + + L ++
Sbjct: 4 VGGLPDVVTIME---GKTLN------LTCTVFGDPDPEVSWLKNDQALALSDH 47
>gnl|CDD|143213 cd05736, Ig2_Follistatin_like, Second immunoglobulin (Ig)-like
domain of a follistatin-like molecule encoded by the
Mahya gene and similar proteins. Ig2_Follistatin_like:
domain similar to the second immunoglobulin (Ig)-like
domain found in a follistatin-like molecule encoded by
the CNS-related Mahya gene. Mahya genes have been
retained in certain Bilaterian branches during
evolution. They are conserved in Hymenoptera and
Deuterostomes, but are absent from other metazoan
species such as fruit fly and nematode. Mahya proteins
are secretory, with a follistatin-like domain
(Kazal-type serine/threonine protease inhibitor domain
and EF-hand calcium-binding domain), two Ig-like
domains, and a novel C-terminal domain. Mahya may be
involved in learning and memory and in processing of
sensory information in Hymenoptera and vertebrates.
Follistatin is a secreted, multidomain protein that
binds activins with high affinity and antagonizes their
signaling.
Length = 76
Score = 38.4 bits (89), Expect = 3e-04
Identities = 19/61 (31%), Positives = 28/61 (45%), Gaps = 9/61 (14%)
Query: 152 AQFTCKYEGNPVKTISWMKDGKPV----PDH-----NEPVFRIDSVRKEDKGMYQCVIRN 202
A C EG P+ ++W+K+G + N I +VR ED G Y C+ +N
Sbjct: 1 ASLRCHAEGIPLPRLTWLKNGMDITPKLSKQLTLIANGSELHISNVRYEDTGAYTCIAKN 60
Query: 203 E 203
E
Sbjct: 61 E 61
Score = 28.0 bits (62), Expect = 1.2
Identities = 10/29 (34%), Positives = 15/29 (51%), Gaps = 1/29 (3%)
Query: 65 QVSGT-LIIKEAKVEDSGKYLCVVNNSVG 92
+G+ L I + ED+G Y C+ N G
Sbjct: 35 IANGSELHISNVRYEDTGAYTCIAKNEAG 63
>gnl|CDD|143211 cd05734, Ig7_DSCAM, Seventh immunoglobulin (Ig)-like domain of Down
Syndrome Cell Adhesion molecule (DSCAM). Ig7_DSCAM: the
seventh immunoglobulin (Ig)-like domain of Down Syndrome
Cell Adhesion molecule (DSCAM). DSCAM is a cell adhesion
molecule expressed largely in the developing nervous
system. The gene encoding DSCAM is located at human
chromosome 21q22, the locus associated with the mental
retardation phenotype of Down Syndrome. DSCAM is
predicted to be the largest member of the IG
superfamily. It has been demonstrated that DSCAM can
mediate cation-independent homophilic intercellular
adhesion.
Length = 79
Score = 37.6 bits (87), Expect = 5e-04
Identities = 23/48 (47%), Positives = 30/48 (62%), Gaps = 2/48 (4%)
Query: 57 VPLNDRVKQVS-GTLIIKEAKVEDSGKYLCVVNNSVGGE-SVETVLTV 102
L R++ +S G+L+IK EDSG YLC V+N VG + S VLTV
Sbjct: 32 CCLAGRIQLLSNGSLLIKHVLEEDSGYYLCKVSNDVGADASKSMVLTV 79
Score = 31.1 bits (70), Expect = 0.12
Identities = 18/62 (29%), Positives = 22/62 (35%), Gaps = 14/62 (22%)
Query: 156 CKYEGNPVKTISW-MKDGKPVPDHNEPV-------------FRIDSVRKEDKGMYQCVIR 201
C EG P TI W G+ P H I V +ED G Y C +
Sbjct: 5 CSAEGYPPPTIVWKHSKGRGHPQHTHTCCLAGRIQLLSNGSLLIKHVLEEDSGYYLCKVS 64
Query: 202 NE 203
N+
Sbjct: 65 ND 66
>gnl|CDD|143284 cd05876, Ig3_L1-CAM, Third immunoglobulin (Ig)-like domain of the
L1 cell adhesion molecule (CAM). Ig3_L1-CAM: third
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains, five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
the chicken neuron-glia cell adhesion molecule, Ng-CAM.
Length = 71
Score = 36.8 bits (85), Expect = 8e-04
Identities = 16/59 (27%), Positives = 26/59 (44%), Gaps = 6/59 (10%)
Query: 156 CKYEGNPVKTISWMKDGKPVP------DHNEPVFRIDSVRKEDKGMYQCVIRNEQESAQ 208
C EG P + W + P+ +N ++D+V + D G Y C N + SA+
Sbjct: 5 CIAEGLPTPEVHWDRIDGPLSPNRTKKLNNNKTLQLDNVLESDDGEYVCTAENSEGSAR 63
Score = 27.2 bits (60), Expect = 1.9
Identities = 9/14 (64%), Positives = 11/14 (78%)
Query: 242 KCIASGNPTPEISW 255
+CIA G PTPE+ W
Sbjct: 4 ECIAEGLPTPEVHW 17
>gnl|CDD|143259 cd05851, Ig3_Contactin-1, Third Ig domain of contactin-1.
Ig3_Contactin-1: Third Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 88
Score = 37.3 bits (86), Expect = 0.001
Identities = 20/59 (33%), Positives = 29/59 (49%), Gaps = 5/59 (8%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHNE-----PVFRIDSVRKEDKGMYQCVIRN 202
G+ C GNPV I W K +P+P E V +I +++ ED+G Y+C N
Sbjct: 16 GQNVTLECFALGNPVPVIRWRKILEPMPATAEISMSGAVLKIFNIQPEDEGTYECEAEN 74
Score = 36.2 bits (83), Expect = 0.002
Identities = 14/35 (40%), Positives = 15/35 (42%)
Query: 221 PPVIKESFSDETLNPGPNYYFKCIASGNPTPEISW 255
P I F D G N +C A GNP P I W
Sbjct: 1 PADINVKFKDTYALKGQNVTLECFALGNPVPVIRW 35
>gnl|CDD|143220 cd05743, Ig_Perlecan_D2_like, Immunoglobulin (Ig)-like domain II
(D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2.
Ig_Perlecan_D2_like: the immunoglobulin (Ig)-like domain
II (D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2. Perlecan
consists of five domains. Domain I has three putative
heparan sulfate attachment sites; domain II has four LDL
receptor-like repeats, and one Ig-like repeat; domain
III resembles the short arm of laminin chains; domain IV
has multiple Ig-like repeats (21 repeats in human
perlecan); and domain V resembles the globular G domain
of the laminin A chain and internal repeats of EGF.
Perlecan may participate in a variety of biological
functions including cell binding, LDL-metabolism,
basement membrane assembly and selective permeability,
calcium binding, and growth- and neurite-promoting
activities.
Length = 78
Score = 36.7 bits (85), Expect = 0.001
Identities = 18/65 (27%), Positives = 25/65 (38%), Gaps = 9/65 (13%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPV---------FRIDSVRKEDKGMYQCV 199
G +FTC G P I+W + VPD I V++ D+G Y C
Sbjct: 1 GETVEFTCVATGVPTPIINWRLNWGHVPDSARVSITSEGGYGTLTIRDVKESDQGAYTCE 60
Query: 200 IRNEQ 204
N +
Sbjct: 61 AINTR 65
Score = 29.0 bits (65), Expect = 0.62
Identities = 16/40 (40%), Positives = 20/40 (50%), Gaps = 4/40 (10%)
Query: 57 VPLNDRVKQVS----GTLIIKEAKVEDSGKYLCVVNNSVG 92
VP + RV S GTL I++ K D G Y C N+ G
Sbjct: 27 VPDSARVSITSEGGYGTLTIRDVKESDQGAYTCEAINTRG 66
Score = 27.8 bits (62), Expect = 1.6
Identities = 10/18 (55%), Positives = 14/18 (77%)
Query: 241 FKCIASGNPTPEISWYLD 258
F C+A+G PTP I+W L+
Sbjct: 6 FTCVATGVPTPIINWRLN 23
>gnl|CDD|143170 cd04969, Ig5_Contactin_like, Fifth Ig domain of contactin.
Ig5_Contactin_like: Fifth Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four fibronectin
type III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of
neuronal act ivity in the rat auditory system.
Contactin-5 is highly expressed in the adult human brain
in the occipital lobe and in the amygdala. Contactin-1
is differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 73
Score = 36.7 bits (85), Expect = 0.001
Identities = 21/67 (31%), Positives = 29/67 (43%), Gaps = 12/67 (17%)
Query: 156 CKYEGNPVKTISWMKDGKPV---------PDHNEPVFRIDSVRKEDKGMYQCVIRNEQES 206
CK + P TISW K + + PD + I +V K D+G Y C N
Sbjct: 8 CKPKAAPKPTISWSKGTELLTNSSRICIWPDGS---LEILNVTKSDEGKYTCFAENFFGK 64
Query: 207 AQASGEL 213
A ++G L
Sbjct: 65 ANSTGSL 71
Score = 30.1 bits (68), Expect = 0.23
Identities = 12/35 (34%), Positives = 15/35 (42%)
Query: 68 GTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
G+L I D GKY C N G + L+V
Sbjct: 39 GSLEILNVTKSDEGKYTCFAENFFGKANSTGSLSV 73
>gnl|CDD|143233 cd05756, Ig1_IL1R_like, First immunoglobulin (Ig)-like domain of
interleukin-1 receptor (IL1R) and similar proteins.
Ig1_IL1R_like: domain similar to the first
immunoglobulin (Ig)-like domain of interleukin-1
receptor (IL1R). IL-1 alpha and IL-1 beta are cytokines
which participate in the regulation of inflammation,
immune responses, and hematopoiesis. These cytokines
bind to the IL-1 receptor type 1 (IL1R1), which is
activated on additional association with an accessory
protein, IL1RAP. IL-1 also binds a second receptor
designated type II (IL1R2). Mature IL1R1 consists of
three Ig-like domains, a transmembrane domain, and a
large cytoplasmic domain. Mature IL1R2 is organized
similarly except that it has a short cytoplasmic
domain. The latter does not initiate signal
transduction. A naturally occurring cytokine IL-1RA
(IL-1 receptor antagonist) is widely expressed and
binds to IL-1 receptors, inhibiting the binding of IL-1
alpha and IL-1 beta.
Length = 94
Score = 36.7 bits (85), Expect = 0.001
Identities = 19/50 (38%), Positives = 24/50 (48%), Gaps = 6/50 (12%)
Query: 43 MWFKFIEGSSRKVAVPLND--RVKQVSGTLIIKEAKVEDSGKYLCVVNNS 90
W+K S K +P + R+ Q L A +EDSG Y CVV NS
Sbjct: 37 TWYK----SDGKTPIPTEERSRMHQQKDLLWFLPAALEDSGLYTCVVRNS 82
Score = 26.6 bits (59), Expect = 4.5
Identities = 10/24 (41%), Positives = 13/24 (54%)
Query: 191 EDKGMYQCVIRNEQESAQASGELK 214
ED G+Y CV+RN + S L
Sbjct: 70 EDSGLYTCVVRNSTYCMKVSISLT 93
>gnl|CDD|143219 cd05742, Ig1_VEGFR_like, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor (R)
and similar proteins. Ig1_VEGFR_like: first
immunoglobulin (Ig)-like domain of vascular endothelial
growth factor (VEGF) receptor(R) related proteins. The
VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of three
members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGF-A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but binds
other members of the VEGF family (VEGF-C and -D). VEGFRs
bind VEGFs with high affinity with the IG-like domains.
VEGF-A is important to the growth and maintenance of
vascular endothelial cells and to the development of new
blood- and lymphatic-vessels in physiological and
pathological states. VEGFR-2 is a major mediator of the
mitogenic, angiogenic and microvascular
permeability-enhancing effects of VEGF-A. VEGFR-1 may
play an inhibitory part in these processes by binding
VEGF and interfering with its interaction with VEGFR-2.
VEGFR-1 has a signaling role in mediating monocyte
chemotaxis. VEGFR-2 and -1 may mediate a chemotactic and
a survival signal in hematopoietic stem cells or
leukemia cells. VEGFR-3 has been shown to be involved in
tumor angiogenesis and growth. This group also contains
alpha-type platelet-derived growth factor receptor
precursor (PDGFR)-alpha (CD140a), and PDGFR-beta
(CD140b). PDGFRs alpha and beta have an extracellular
component with five Ig-like domains, a transmembrane
segment, and a cytoplasmic portion that has protein
tyrosine kinase activity.
Length = 84
Score = 36.2 bits (84), Expect = 0.002
Identities = 19/84 (22%), Positives = 31/84 (36%), Gaps = 10/84 (11%)
Query: 30 GESFALLCEAQENMW----FKF-IEGSSRKVAVPLNDRVKQV-----SGTLIIKEAKVED 79
GE+ L C + F++ G R + R S TL I A ++D
Sbjct: 1 GETLVLNCTVLTELNEGVDFQWTYPGKKRGRGKSMVTRQSLSEATELSSTLTIPNATLKD 60
Query: 80 SGKYLCVVNNSVGGESVETVLTVT 103
SG Y C ++ + T + +
Sbjct: 61 SGTYTCAASSGTMDQKESTKVNIH 84
>gnl|CDD|143168 cd04967, Ig1_Contactin, First Ig domain of contactin.
Ig1_Contactin: First Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four
fibronectin type III(FnIII) domains anchored to the
membrane by glycosylphosphatidylinositol. The first
four Ig domains form the intermolecular binding
fragment, which arranges as a compact U-shaped module
via contacts between Ig domains 1 and 4, and between Ig
domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play
a part in the neuronal processes of neurite outgrowth,
axon guidance and fasciculation, and neuronal
migration. This group also includes contactin-1 and
contactin-5. The different contactins show different
expression patterns in the central nervous system.
During development and in adulthood, contactin-2 is
transiently expressed in subsets of central and
peripheral neurons. Contactin-5 is expressed
specifically in the rat postnatal nervous system,
peaking at about 3 weeks postnatal, and a lack of
contactin-5 (NB-2) results in an impairment of neuronal
activity in the rat auditory system. Contactin-5 is
highly expressed in the adult human brain in the
occipital lobe and in the amygdala. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 91
Score = 36.3 bits (84), Expect = 0.002
Identities = 13/34 (38%), Positives = 20/34 (58%), Gaps = 1/34 (2%)
Query: 60 NDRVKQVSGTLIIKEA-KVEDSGKYLCVVNNSVG 92
+ R V G L+I K +D+G+Y C+ +N VG
Sbjct: 50 DSRYSLVGGNLVISNPSKAKDAGRYQCLASNIVG 83
Score = 29.0 bits (65), Expect = 0.78
Identities = 17/58 (29%), Positives = 25/58 (43%), Gaps = 12/58 (20%)
Query: 155 TCKYEGNPVKTISWMKDGKPVPDHNEPVFRIDSV----------RKEDKGMYQCVIRN 202
C+ G+P T W+ +G + D EP R V + +D G YQC+ N
Sbjct: 25 NCRARGSPPPTYRWLMNGTEIDD--EPDSRYSLVGGNLVISNPSKAKDAGRYQCLASN 80
>gnl|CDD|215677 pfam00047, ig, Immunoglobulin domain. Members of the
immunoglobulin superfamily are found in hundreds of
proteins of different functions. Examples include
antibodies, the giant muscle kinase titin and receptor
tyrosine kinases. Immunoglobulin-like domains may be
involved in protein-protein and protein-ligand
interactions. The Pfam alignments do not include the
first and last strand of the immunoglobulin-like domain.
Length = 62
Score = 34.8 bits (80), Expect = 0.004
Identities = 18/58 (31%), Positives = 23/58 (39%), Gaps = 10/58 (17%)
Query: 152 AQFTCKYEGNPVKTISWMKDGKPVP-------DHNEP---VFRIDSVRKEDKGMYQCV 199
TC G P ++W K+GK + D N I +V ED G Y CV
Sbjct: 4 VTLTCSVSGPPQVDVTWFKEGKGLEESTTVGTDENRVSSITLTISNVTPEDSGTYTCV 61
Score = 27.5 bits (61), Expect = 1.4
Identities = 22/68 (32%), Positives = 24/68 (35%), Gaps = 16/68 (23%)
Query: 30 GESFALLCEAQENM-----WFKFIEGSSRKVAVPLNDRVKQV-----SGTLIIKEAKVED 79
G S L C WFK EG + + V S TL I ED
Sbjct: 1 GSSVTLTCSVSGPPQVDVTWFK--EGKG----LEESTTVGTDENRVSSITLTISNVTPED 54
Query: 80 SGKYLCVV 87
SG Y CVV
Sbjct: 55 SGTYTCVV 62
>gnl|CDD|143276 cd05868, Ig4_NrCAM, Fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). Ig4_ NrCAM:
fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). NrCAM belongs to
the L1 subfamily of cell adhesion molecules (CAMs) and
is comprised of an extracellular region having six
IG-like domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. NrCAM
is primarily expressed in the nervous system.
Length = 76
Score = 35.0 bits (80), Expect = 0.004
Identities = 19/65 (29%), Positives = 30/65 (46%), Gaps = 12/65 (18%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPV---PDHNEPVFRID-------SVRKEDKGMYQC 198
G C+ GNP +ISW+ +G P+ P +P ++D V++ +YQC
Sbjct: 1 GEDGTLICRANGNPKPSISWLTNGVPIEIAPT--DPSRKVDGDTIIFSKVQERSSAVYQC 58
Query: 199 VIRNE 203
NE
Sbjct: 59 NASNE 63
Score = 30.7 bits (69), Expect = 0.15
Identities = 10/17 (58%), Positives = 12/17 (70%)
Query: 243 CIASGNPTPEISWYLDG 259
C A+GNP P ISW +G
Sbjct: 8 CRANGNPKPSISWLTNG 24
>gnl|CDD|219745 pfam08205, C2-set_2, CD80-like C2-set immunoglobulin domain. These
domains belong to the immunoglobulin superfamily.
Length = 89
Score = 35.1 bits (81), Expect = 0.005
Identities = 11/34 (32%), Positives = 16/34 (47%), Gaps = 1/34 (2%)
Query: 234 NPGPNYYFKCIAS-GNPTPEISWYLDGKKLVNAE 266
C ++ G P P I+WYLDG++L
Sbjct: 12 GENLEVVATCSSAGGKPAPRITWYLDGRELEAIT 45
Score = 26.6 bits (59), Expect = 4.6
Identities = 6/21 (28%), Positives = 9/21 (42%)
Query: 160 GNPVKTISWMKDGKPVPDHNE 180
G P I+W DG+ +
Sbjct: 26 GKPAPRITWYLDGRELEAITT 46
>gnl|CDD|143267 cd05859, Ig4_PDGFR-alpha, Fourth immunoglobulin (Ig)-like domain of
platelet-derived growth factor receptor (PDGFR) alpha.
IG4_PDGFR-alpha: The fourth immunoglobulin (Ig)-like
domain of platelet-derived growth factor receptor
(PDGFR) alpha. PDGF is a potent mitogen for connective
tissue cells. PDGF-stimulated processes are mediated by
three different PDGFs (PDGF-A,-B, and C). PDGFR alpha
binds to all three PDGFs, whereas the PDGFR beta (not
included in this group) binds only to PDGF-B. PDGF alpha
is organized as an extracellular component having five
Ig-like domains, a transmembrane segment, and a
cytoplasmic portion having protein tyrosine kinase
activity. In mice, PDGFR alpha and PDGFR beta are
essential for normal development.
Length = 101
Score = 35.2 bits (81), Expect = 0.005
Identities = 21/93 (22%), Positives = 37/93 (39%), Gaps = 18/93 (19%)
Query: 139 VEPTVQTIDFG---RPAQFTCKYEGNPVKTISWMKDGKPVPD---------HNEPVFRID 186
++PT ++F +F + E P I W+KD + + + HN R
Sbjct: 5 LKPTFGQLEFANLHEVKEFVVEVEAYPPPQIRWLKDNRTLIENLTEITTSEHNVQETRYV 64
Query: 187 S------VRKEDKGMYQCVIRNEQESAQASGEL 213
S ++ED G+Y + +NE + L
Sbjct: 65 SKLKLIRAKEEDSGLYTALAQNEDAVKSYTFAL 97
>gnl|CDD|143273 cd05865, Ig1_NCAM-1, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1. Ig1_NCAM-1:
first immunoglobulin (Ig)-like domain of neural cell
adhesion molecule NCAM-1. NCAM-1 plays important roles
in the development and regeneration of the central
nervous system, in synaptogenesis and neural migration.
NCAM mediates cell-cell and cell-substratum recognition
and adhesion via homophilic (NCAM-NCAM), and
heterophilic (NCAM-nonNCAM), interactions. NCAM is
expressed as three major isoforms having different
intracellular extensions. The extracellular portion of
NCAM has five N-terminal Ig-like domains and two
fibronectin type III domains. The double zipper
adhesion complex model for NCAM homophilic binding
involves the Ig1, Ig2, and Ig3 domains. By this model,
Ig1 and Ig2 mediate dimerization of NCAM molecules
situated on the same cell surface (cis interactions),
and Ig3 domains mediate interactions between NCAM
molecules expressed on the surface of opposing cells
(trans interactions), through binding to the Ig1 and
Ig2 domains. The adhesive ability of NCAM is modulated
by the addition of polysialic acid chains to the fifth
Ig-like domain.
Length = 96
Score = 35.4 bits (81), Expect = 0.005
Identities = 27/80 (33%), Positives = 41/80 (51%), Gaps = 13/80 (16%)
Query: 30 GESFALLCE------AQENMWF----KFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVED 79
GES LC+ ++ WF + + + ++++V ND S TL I A ++D
Sbjct: 15 GESKFFLCQVAGEAKDKDISWFSPNGEKLTPNQQRISVVRND---DYSSTLTIYNANIDD 71
Query: 80 SGKYLCVVNNSVGGESVETV 99
+G Y CVV+N GES TV
Sbjct: 72 AGIYKCVVSNEDEGESEATV 91
Score = 26.9 bits (59), Expect = 4.7
Identities = 25/95 (26%), Positives = 38/95 (40%), Gaps = 14/95 (14%)
Query: 135 LAAGVEPTVQTIDFGRPAQFTCKYEGNPV-KTISWMKDG--KPVP----------DHNEP 181
L + P+ I G F C+ G K ISW K P D
Sbjct: 1 LQVDIVPSQGEISVGESKFFLCQVAGEAKDKDISWFSPNGEKLTPNQQRISVVRNDDYSS 60
Query: 182 VFRIDSVRKEDKGMYQCVIRNEQES-AQASGELKL 215
I + +D G+Y+CV+ NE E ++A+ +K+
Sbjct: 61 TLTIYNANIDDAGIYKCVVSNEDEGESEATVNVKI 95
>gnl|CDD|143171 cd04970, Ig6_Contactin_like, Sixth Ig domain of contactin.
Ig6_Contactin_like: Sixth Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four fibronectin
type III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of neur
onal act ivity in the rat auditory system. Contactin-5
is highly expressed in the adult human brain in the
occipital lobe and in the amygdala. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 85
Score = 34.8 bits (80), Expect = 0.006
Identities = 14/43 (32%), Positives = 21/43 (48%)
Query: 63 VKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVTAP 105
K +G L+I+ A+++ +GKY C V S L V P
Sbjct: 42 GKDSNGDLMIRNAQLKHAGKYTCTAQTVVDSLSASADLIVRGP 84
>gnl|CDD|143177 cd04976, Ig2_VEGFR, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR).
Ig2_VEGFR: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR). The
VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of three
members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGFRs bind VEGFs with high affinity at
the Ig-like domains. VEGF-A is important to the growth
and maintenance of vascular endothelial cells and to the
development of new blood- and lymphatic-vessels in
physiological and pathological states. VEGFR-2 is a
major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A.
VEGFR-1 may play an inhibitory part in these processes
by binding VEGF and interfering with its interaction
with VEGFR-2. VEGFR-1 has a signaling role in mediating
monocyte chemotaxis. VEGFR-2 and -1 may mediate a
chemotactic and a survival signal in hematopoietic stem
cells or leukemia cells. VEGFR-3 has been shown to be
involved in tumor angiogenesis and growth.
Length = 71
Score = 34.3 bits (79), Expect = 0.007
Identities = 17/53 (32%), Positives = 24/53 (45%), Gaps = 5/53 (9%)
Query: 157 KYEGNPVKTISWMKDGKPVPDHNEPVFR-----IDSVRKEDKGMYQCVIRNEQ 204
K + P I W K+GK + + N I V +ED G Y V+ N+Q
Sbjct: 6 KVKAYPPPEIQWYKNGKLISEKNRTKKSGHSLTIKDVTEEDAGNYTVVLTNKQ 58
Score = 25.8 bits (57), Expect = 6.1
Identities = 9/19 (47%), Positives = 11/19 (57%)
Query: 249 PTPEISWYLDGKKLVNAER 267
P PEI WY +GK + R
Sbjct: 11 PPPEIQWYKNGKLISEKNR 29
>gnl|CDD|143237 cd05760, Ig2_PTK7, Second immunoglobulin (Ig)-like domain of
protein tyrosine kinase (PTK) 7, also known as CCK4.
Ig2_PTK7: domain similar to the second immunoglobulin
(Ig)-like domain in protein tyrosine kinase (PTK) 7,
also known as CCK4. PTK7 is a subfamily of the receptor
protein tyrosine kinase family, and is referred to as an
RPTK-like molecule. RPTKs transduce extracellular
signals across the cell membrane, and play important
roles in regulating cell proliferation, migration, and
differentiation. PTK7 is organized as an extracellular
portion having seven Ig-like domains, a single
transmembrane region, and a cytoplasmic tyrosine
kinase-like domain. PTK7 is considered a pseudokinase as
it has several unusual residues in some of the highly
conserved tyrosine kinase (TK) motifs; it is predicted
to lack TK activity. PTK7 may function as a
cell-adhesion molecule. PTK7 mRNA is expressed at high
levels in placenta, melanocytes, liver, lung, pancreas,
and kidney. PTK7 is overexpressed in several cancers,
including melanoma and colon cancer lines.
Length = 77
Score = 34.5 bits (79), Expect = 0.007
Identities = 19/68 (27%), Positives = 27/68 (39%), Gaps = 8/68 (11%)
Query: 156 CKYEGNPVKTISWMKDGKPVPD--------HNEPVFRIDSVRKEDKGMYQCVIRNEQESA 207
C +G+P T W +DG P+ D E + S +D G+Y C N S
Sbjct: 5 CHIDGHPRPTYQWFRDGTPLSDGQGNYSVSSKERTLTLRSAGPDDSGLYYCCAHNAFGSV 64
Query: 208 QASGELKL 215
+S L
Sbjct: 65 CSSQNFTL 72
>gnl|CDD|143199 cd05722, Ig1_Neogenin, First immunoglobulin (Ig)-like domain in
neogenin and similar proteins. Ig1_Neogenin: first
immunoglobulin (Ig)-like domain in neogenin and related
proteins. Neogenin is a cell surface protein which is
expressed in the developing nervous system of vertebrate
embryos in the growing nerve cells. It is also expressed
in other embryonic tissues, and may play a general role
in developmental processes such as cell migration,
cell-cell recognition, and tissue growth regulation.
Included in this group is the tumor suppressor protein
DCC, which is deleted in colorectal carcinoma . DCC and
neogenin each have four Ig-like domains followed by six
fibronectin type III domains, a transmembrane domain,
and an intracellular domain.
Length = 95
Score = 34.8 bits (80), Expect = 0.008
Identities = 25/78 (32%), Positives = 31/78 (39%), Gaps = 13/78 (16%)
Query: 139 VEPTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVP-DHNEPV-------FRIDSVR- 189
EP+ G P C EG P I W KDG + +E I SV
Sbjct: 4 SEPSDIVAVRGGPVVLNCSAEGEPPPKIEWKKDGVLLNLVSDERRQQLPNGSLLITSVVH 63
Query: 190 ----KEDKGMYQCVIRNE 203
K D+G YQCV +N+
Sbjct: 64 SKHNKPDEGFYQCVAQND 81
>gnl|CDD|143269 cd05861, Ig1_PDGFR-alphabeta, Frst immunoglobulin (Ig)-like domain
of platelet-derived growth factor (PDGF) receptors (R),
alpha (CD140a), and beta (CD140b). Ig1_PDGFR-alphabeta:
The first immunoglobulin (Ig)-like domain of
platelet-derived growth factor (PDGF) receptors (R),
alpha (CD140a), and beta (CD140b). PDGF is a potent
mitogen for connective tissue cells. PDGF-stimulated
processes are mediated by three different PDGFs
(PDGF-A,-B, and C). PDGFRalpha binds to all three PDGFs,
whereas the PDGFRbeta binds only to PDGF-B. PDGFRs alpha
and beta have similar organization: an extracellular
component with five Ig-like domains, a transmembrane
segment, and a cytoplasmic portion having protein
tyrosine kinase activity. In mice, PDGFRalpha and
PDGFRbeta are essential for normal development.
Length = 84
Score = 34.4 bits (79), Expect = 0.008
Identities = 22/81 (27%), Positives = 31/81 (38%), Gaps = 7/81 (8%)
Query: 30 GESFALLCEAQENMWFKF---IEGSSRKVAVPLNDRVK----QVSGTLIIKEAKVEDSGK 82
GE+ + C Q N F G +P + VK + TL A VEDSG
Sbjct: 1 GETITVNCIVQGNEVVDFSWTYPGKDIGKGIPEVEEVKVPATTLRSTLTFPHATVEDSGT 60
Query: 83 YLCVVNNSVGGESVETVLTVT 103
Y C + S + + +T
Sbjct: 61 YECAAHESTQDQKAFKKVNIT 81
>gnl|CDD|143227 cd05750, Ig_Pro_neuregulin, Immunoglobulin (Ig)-like domain in
neuregulins (NRGs). Ig_Pro_neuregulin: immunoglobulin
(Ig)-like domain in neuregulins (NRGs). NRGs are
signaling molecules, which participate in cell-cell
interactions in the nervous system, breast, heart, and
other organ systems, and are implicated in the
pathology of diseases including schizophrenia, multiple
sclerosis, and breast cancer. There are four members of
the neuregulin gene family (NRG1, -2, -3, and -4). The
NRG-1 protein, binds to and activates the tyrosine
kinases receptors ErbB3 and ErbB4, initiating signaling
cascades. The other NRGs proteins bind one or the other
or both of these ErbBs. NRG-1 has multiple functions;
for example, in the brain it regulates various
processes such as radial glia formation and neuronal
migration, dendritic development, and expression of
neurotransmitters receptors; in the peripheral nervous
system NRG-1 regulates processes such as target cell
differentiation, and Schwann cell survival. There are
many NRG-1 isoforms, which arise from the alternative
splicing of mRNA. Less is known of the functions of the
other NRGs. NRG-2 and -3 are expressed predominantly in
the nervous system. NRG-2 is expressed by motor neurons
and terminal Schwann cells, and is concentrated near
synaptic sites and may be a signal that regulates
synaptic differentiation. NRG-4 has been shown to
direct pancreatic islet cell development towards the
delta-cell lineage.
Length = 75
Score = 33.7 bits (77), Expect = 0.011
Identities = 16/35 (45%), Positives = 24/35 (68%)
Query: 62 RVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESV 96
R K+ + L I +AK+ DSG+Y CVV N +G ++V
Sbjct: 37 RNKKKNSELQINKAKLADSGEYTCVVENILGNDTV 71
Score = 30.2 bits (68), Expect = 0.18
Identities = 15/55 (27%), Positives = 21/55 (38%), Gaps = 12/55 (21%)
Query: 160 GNPVKTISWMKDGKPVPDHNEP------------VFRIDSVRKEDKGMYQCVIRN 202
P W KDGK + N+P +I+ + D G Y CV+ N
Sbjct: 10 EYPSLRFKWFKDGKELNRKNKPRNIKIRNKKKNSELQINKAKLADSGEYTCVVEN 64
Score = 26.0 bits (57), Expect = 7.0
Identities = 10/22 (45%), Positives = 13/22 (59%), Gaps = 1/22 (4%)
Query: 242 KCIA-SGNPTPEISWYLDGKKL 262
KC A S P+ W+ DGK+L
Sbjct: 4 KCEATSEYPSLRFKWFKDGKEL 25
>gnl|CDD|143299 cd05891, Ig_M-protein_C, C-terminal immunoglobulin (Ig)-like domain
of M-protein (also known as myomesin-2).
Ig_M-protein_C: the C-terminal immunoglobulin (Ig)-like
domain of M-protein (also known as myomesin-2).
M-protein is a structural protein localized to the
M-band, a transverse structure in the center of the
sarcomere, and is a candidate for M-band bridges.
M-protein is modular consisting mainly of repetitive
IG-like and fibronectin type III (FnIII) domains, and
has a muscle-type specific expression pattern. M-protein
is present in fast fibers.
Length = 92
Score = 34.1 bits (78), Expect = 0.012
Identities = 16/34 (47%), Positives = 21/34 (61%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
+L IK EDSGKY V N GGE+V+ ++V
Sbjct: 59 SLTIKGVTSEDSGKYSINVKNKYGGETVDVTVSV 92
Score = 33.0 bits (75), Expect = 0.028
Identities = 18/73 (24%), Positives = 29/73 (39%), Gaps = 10/73 (13%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPVFRIDS----------VRK 190
P V TI G+ TC GNP + W K+ + + +++ V
Sbjct: 8 PDVVTIMEGKTLNLTCTVFGNPDPEVIWFKNDQDIELSEHYSVKLEQGKYASLTIKGVTS 67
Query: 191 EDKGMYQCVIRNE 203
ED G Y ++N+
Sbjct: 68 EDSGKYSINVKNK 80
>gnl|CDD|143210 cd05733, Ig6_L1-CAM_like, Sixth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM) and similar
proteins. Ig6_L1-CAM_like: domain similar to the sixth
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
NrCAM [Ng(neuronglia)CAM-related cell adhesion
molecule], which is primarily expressed in the nervous
system, and human neurofascin.
Length = 77
Score = 33.5 bits (77), Expect = 0.014
Identities = 21/66 (31%), Positives = 28/66 (42%), Gaps = 13/66 (19%)
Query: 155 TCKYEGNPVKTISWMKDGKPVPDHNEP---------VFRID---SVRKED-KGMYQCVIR 201
C+ +GNP T SW ++G +P ID R ED +G YQC
Sbjct: 4 KCEAKGNPPPTFSWTRNGTHFDPEKDPRVTMKPDSGTLVIDNMNGGRAEDYEGEYQCYAS 63
Query: 202 NEQESA 207
NE +A
Sbjct: 64 NELGTA 69
Score = 29.3 bits (66), Expect = 0.47
Identities = 10/19 (52%), Positives = 11/19 (57%)
Query: 242 KCIASGNPTPEISWYLDGK 260
KC A GNP P SW +G
Sbjct: 4 KCEAKGNPPPTFSWTRNGT 22
>gnl|CDD|143174 cd04973, Ig1_FGFR, First immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig1_FGFR: The
first immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth factors
(FGFs) participate in morphogenesis, development,
angiogenesis, and wound healing. These FGF-stimulated
processes are mediated by four FGFR tyrosine kinases
(FGRF1-4). FGFRs are comprised of an extracellular
portion consisting of three Ig-like domains, a
transmembrane helix, and a cytoplasmic portion having
protein tyrosine kinase activity. The highly conserved
Ig-like domains 2 and 3, and the linker region between
D2 and D3 define a general binding site for all FGFs.
Length = 79
Score = 33.3 bits (76), Expect = 0.016
Identities = 16/56 (28%), Positives = 26/56 (46%), Gaps = 6/56 (10%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHNEPVF-----RIDSVRKEDKGMYQCV 199
G Q C+ + V++I+W KDG + ++N +I D G+Y CV
Sbjct: 9 GDLLQLRCRLR-DDVQSINWTKDGVQLGENNRTRITGEEVQIKDAVPRDSGLYACV 63
Score = 31.0 bits (70), Expect = 0.11
Identities = 17/67 (25%), Positives = 33/67 (49%), Gaps = 2/67 (2%)
Query: 30 GESFALLCEAQENMWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNN 89
G+ L C ++++ + I + V + N+R + + IK+A DSG Y CV ++
Sbjct: 9 GDLLQLRCRLRDDV--QSINWTKDGVQLGENNRTRITGEEVQIKDAVPRDSGLYACVTSS 66
Query: 90 SVGGESV 96
G ++
Sbjct: 67 PSGSDTT 73
>gnl|CDD|143242 cd05765, Ig_3, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_3: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 81
Score = 32.9 bits (75), Expect = 0.026
Identities = 23/81 (28%), Positives = 34/81 (41%), Gaps = 8/81 (9%)
Query: 30 GESFALLCEAQ-----ENMWFKFIEGSSRKVAVPLNDRVKQVS---GTLIIKEAKVEDSG 81
GE+ + C+ E W K + G + P + R V G L+I A+ +D+G
Sbjct: 1 GETASFHCDVTGRPPPEITWEKQVHGKENLIMRPNHVRGNVVVTNIGQLVIYNAQPQDAG 60
Query: 82 KYLCVVNNSVGGESVETVLTV 102
Y C NS G L+V
Sbjct: 61 LYTCTARNSGGLLRANFPLSV 81
Score = 29.8 bits (67), Expect = 0.29
Identities = 22/75 (29%), Positives = 29/75 (38%), Gaps = 14/75 (18%)
Query: 149 GRPAQFTCKYEGNPVKTISWMK--DGKP----VPDH--------NEPVFRIDSVRKEDKG 194
G A F C G P I+W K GK P+H N I + + +D G
Sbjct: 1 GETASFHCDVTGRPPPEITWEKQVHGKENLIMRPNHVRGNVVVTNIGQLVIYNAQPQDAG 60
Query: 195 MYQCVIRNEQESAQA 209
+Y C RN +A
Sbjct: 61 LYTCTARNSGGLLRA 75
>gnl|CDD|143217 cd05740, Ig_CEACAM_D4, Fourth immunoglobulin (Ig)-like domain of
carcinoembryonic antigen (CEA) related cell adhesion
molecule (CEACAM). Ig_CEACAM_D4: immunoglobulin
(Ig)-like domain 4 in carcinoembryonic antigen (CEA)
related cell adhesion molecule (CEACAM) protein
subfamily. The CEA family is a group of anchored or
secreted glycoproteins, expressed by epithelial cells,
leukocytes, endothelial cells and placenta. The CEA
family is divided into the CEACAM and pregnancy-specific
glycoprotein (PSG) subfamilies. This group represents
the CEACAM subfamily. CEACAM1 has many important
cellular functions, it is a cell adhesion molecule, and
a signaling molecule that regulates the growth of tumor
cells, it is an angiogenic factor, and is a receptor for
bacterial and viral pathogens, including mouse hepatitis
virus (MHV). In mice, four isoforms of CEACAM1 generated
by alternative splicing have either two [D1, D4] or four
[D1-D4] Ig-like domains on the cell surface. This family
corresponds to the D4 Ig-like domain.
Length = 91
Score = 33.0 bits (75), Expect = 0.028
Identities = 18/77 (23%), Positives = 30/77 (38%), Gaps = 7/77 (9%)
Query: 133 PPLAAGVEPTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPDH------NEPVFRID 186
P + + Q + +P TC+ EG I W+ +G + + +
Sbjct: 2 PVINSNNSVGNQPPEDNQPVTLTCEAEGQ-ATYIWWVNNGSLLVPPRLQLSNDNRTLTFN 60
Query: 187 SVRKEDKGMYQCVIRNE 203
+V + D G YQC NE
Sbjct: 61 NVTRSDTGHYQCEASNE 77
>gnl|CDD|143257 cd05849, Ig1_Contactin-1, First Ig domain of contactin-1.
Ig1_Contactin-1: First Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 93
Score = 33.0 bits (75), Expect = 0.029
Identities = 15/35 (42%), Positives = 22/35 (62%), Gaps = 1/35 (2%)
Query: 59 LNDRVKQVSGTLIIKEA-KVEDSGKYLCVVNNSVG 92
NDR V G L+I K +D+G+Y+C+V+N G
Sbjct: 48 TNDRYSMVGGNLVINNPDKYKDAGRYVCIVSNIYG 82
>gnl|CDD|143173 cd04972, Ig_TrkABC_d4, Fourth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d4: the fourth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrKB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 90
Score = 32.9 bits (75), Expect = 0.029
Identities = 15/84 (17%), Positives = 31/84 (36%), Gaps = 9/84 (10%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPV-------PDHNEPVF--RIDSVRKE 191
P + G A C EG+P+ + W+ G V + ++ ++ ++ E
Sbjct: 7 PNATVVYEGGTATIRCTAEGSPLPKVEWIIAGLIVIQTRTDTLETTVDIYNLQLSNITSE 66
Query: 192 DKGMYQCVIRNEQESAQASGELKL 215
+ C N A S ++ +
Sbjct: 67 TQTTVTCTAENPVGQANVSVQVTV 90
Score = 27.5 bits (61), Expect = 2.3
Identities = 8/29 (27%), Positives = 14/29 (48%)
Query: 232 TLNPGPNYYFKCIASGNPTPEISWYLDGK 260
+ G +C A G+P P++ W + G
Sbjct: 11 VVYEGGTATIRCTAEGSPLPKVEWIIAGL 39
>gnl|CDD|143184 cd04983, IgV_TCR_alpha_like, Immunoglobulin (Ig) variable (V)
domain of T-cell receptor (TCR) alpha chain and similar
proteins. IgV_TCR_alpha: immunoglobulin (Ig) variable
domain of the alpha chain of alpha/beta T-cell antigen
receptors (TCRs). TCRs mediate antigen recognition by T
lymphocytes, and are composed of alpha and beta, or
gamma and delta, polypeptide chains with variable (V)
and constant (C) regions. This group represents the
variable domain of the alpha chain of TCRs and also
includes the variable domain of delta chains of TCRs.
Alpha/beta TCRs recognize antigen as peptide fragments
presented by major histocompatibility complex (MHC)
molecules. The variable domain of TCRs is responsible
for antigen recognition, and is located at the
N-terminus of the receptor. Gamma/delta TCRs recognize
intact protein antigens; they recognize proteins
antigens directly and without antigen processing, and
MHC independently of the bound peptide.
Length = 109
Score = 33.0 bits (76), Expect = 0.034
Identities = 11/32 (34%), Positives = 16/32 (50%), Gaps = 2/32 (6%)
Query: 59 LNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNS 90
L+ K S L I A++ DS Y C ++ S
Sbjct: 63 LDKSRKSSS--LHISAAQLSDSAVYFCALSES 92
>gnl|CDD|143314 cd07690, Ig1_CD4, First immunoglobulin (Ig) domain of CD4.
Ig1_CD4; first immunoglobulin (Ig) domain of CD4. CD4
and CD8 are the two primary co-receptor proteins found
on the surface of T cells, and the presence of either
CD4 or CD8 determines the function of the T cell. CD4
is found on helper T cells, where it is required for
the binding of MHC (major histocompatibility complex)
class II molecules, while CD8 is found on cytotoxic T
cells, where it is required for the binding of MHC
class I molecules. CD4 contains four immunoglobulin
domains, with the first three included in this
hierarchy. The fourth domain has a general Ig
architecture, but has slight topological changes in the
arrangement of beta strands relative to the other
structures in this family and is not specifically
included in the hierarchy.
Length = 94
Score = 32.9 bits (75), Expect = 0.034
Identities = 23/80 (28%), Positives = 34/80 (42%), Gaps = 20/80 (25%)
Query: 30 GESFALLCEAQENMWFKFIEGSSRKVAV-------------PLNDRV-------KQVSGT 69
G++ L C A + +F +S ++ + LNDR Q S
Sbjct: 7 GDTAELPCTASQKKSIQFHWKNSNQIKILGNQGSFLTKGPSKLNDRADSRRNLWDQGSFP 66
Query: 70 LIIKEAKVEDSGKYLCVVNN 89
LIIK K+EDS Y+C V +
Sbjct: 67 LIIKNLKIEDSDTYICEVED 86
>gnl|CDD|143275 cd05867, Ig4_L1-CAM_like, Fourth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig4_L1-CAM_like:
fourth immunoglobulin (Ig)-like domain of the L1 cell
adhesion molecule (CAM). L1 is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
the chicken neuron-glia cell adhesion molecule, Ng-CAM.
Length = 76
Score = 32.2 bits (73), Expect = 0.043
Identities = 19/62 (30%), Positives = 29/62 (46%), Gaps = 8/62 (12%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGKPVPDHN-EPVFRIDS-------VRKEDKGMYQCVI 200
G A+ C+ EG P I+W +G P+ + +P + S V+ D +YQC
Sbjct: 1 GETARLDCQVEGIPTPNITWSINGAPIEGTDPDPRRHVSSGALILTDVQPSDTAVYQCEA 60
Query: 201 RN 202
RN
Sbjct: 61 RN 62
Score = 26.8 bits (59), Expect = 3.1
Identities = 8/17 (47%), Positives = 11/17 (64%)
Query: 243 CIASGNPTPEISWYLDG 259
C G PTP I+W ++G
Sbjct: 8 CQVEGIPTPNITWSING 24
>gnl|CDD|143167 cd00099, IgV, Immunoglobulin variable domain (IgV). IgV:
Immunoglobulin variable domain (IgV). Members of the IgV
family are components of immunoglobulin (Ig) and T cell
receptors. The basic structure of Ig molecules is a
tetramer of two light chains and two heavy chains linked
by disulfide bonds. In Ig, each chain is composed of one
variable domain (IgV) and one or more constant domains
(IgC); these names reflect the fact that the variability
in sequences is higher in the variable domain than in
the constant domain. Within the variable domain, there
are regions of even more variability called the
hypervariable or complementarity-determining regions
(CDRs) which are responsible for antigen binding. A
predominant feature of most Ig domains is the disulfide
bridge connecting 2 beta-sheets with a tryptophan
residue packed against the disulfide bond.
Length = 105
Score = 32.7 bits (75), Expect = 0.052
Identities = 16/42 (38%), Positives = 20/42 (47%), Gaps = 8/42 (19%)
Query: 67 SGTLIIKEAKVEDSGKYLCVVNNSVGGESVE------TVLTV 102
S TL I + EDS Y C V S+ G + + T LTV
Sbjct: 66 SFTLTISSLQPEDSAVYYCAV--SLSGGTYKLYFGQGTRLTV 105
>gnl|CDD|143190 cd05713, Ig_MOG_like, Immunoglobulin (Ig)-like domain of myelin
oligodendrocyte glycoprotein (MOG). Ig_MOG_like:
immunoglobulin (Ig)-like domain of myelin
oligodendrocyte glycoprotein (MOG). MOG, a minor
component of the myelin sheath, is an important
CNS-specific autoantigen, linked to the pathogenesis of
multiple sclerosis (MS) and experimental autoimmune
encephalomyelitis (EAE). It is a transmembrane protein
having an extracellular Ig domain. MOG is expressed in
the CNS on the outermost lamellae of the myelin sheath,
and on the surface of oligodendrocytes, and may
participate in the completion, compaction, and/or
maintenance of myelin. This group also includes
butyrophilin (BTN). BTN is the most abundant protein in
bovine milk-fat globule membrane (MFGM).
Length = 100
Score = 32.2 bits (74), Expect = 0.059
Identities = 12/31 (38%), Positives = 20/31 (64%)
Query: 184 RIDSVRKEDKGMYQCVIRNEQESAQASGELK 214
RI +VR D+G+Y C +++ +A+ ELK
Sbjct: 68 RIHNVRASDEGLYTCFFQSDGFYEEATVELK 98
Score = 27.2 bits (61), Expect = 3.3
Identities = 12/45 (26%), Positives = 16/45 (35%)
Query: 59 LNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVT 103
L D + + S L I + D G Y C + E L V
Sbjct: 56 LKDAIAEGSVALRIHNVRASDEGLYTCFFQSDGFYEEATVELKVA 100
>gnl|CDD|143225 cd05748, Ig_Titin_like, Immunoglobulin (Ig)-like domain of titin
and similar proteins. Ig_Titin_like: immunoglobulin
(Ig)-like domain found in titin-like proteins. Titin
(also called connectin) is a fibrous sarcomeric protein
specifically found in vertebrate striated muscle. Titin
is gigantic, depending on isoform composition it ranges
from 2970 to 3700 kDa, and is of a length that spans
half a sarcomere. Titin largely consists of multiple
repeats of Ig-like and fibronectin type 3 (FN-III)-like
domains. Titin connects the ends of myosin thick
filaments to Z disks and extends along the thick
filament to the H zone. It appears to function
similarly to an elastic band, keeping the myosin
filaments centered in the sarcomere during muscle
contraction or stretching. Within the sarcomere, titin
is also attached to or is associated with myosin
binding protein C (MyBP-C). MyBP-C appears to
contribute to the generation of passive tension by
titin, and similar to titin has repeated Ig-like and
FN-III domains. Also included in this group are worm
twitchin and insect projectin, thick filament proteins
of invertebrate muscle, which also have repeated
Ig-like and FN-III domains.
Length = 74
Score = 31.8 bits (73), Expect = 0.060
Identities = 19/58 (32%), Positives = 29/58 (50%), Gaps = 5/58 (8%)
Query: 43 MWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKY-LCVVNNSVGGESVETV 99
W K +G K++ + S +L+IK A+ DSGKY L + N + GE T+
Sbjct: 17 TWSK--DGKPLKLSGRVQIETTASSTSLVIKNAERSDSGKYTLTLKNPA--GEKSATI 70
Score = 31.0 bits (71), Expect = 0.094
Identities = 16/66 (24%), Positives = 25/66 (37%), Gaps = 9/66 (13%)
Query: 158 YEGNPVKTISWMKDGKPVPDHNE---------PVFRIDSVRKEDKGMYQCVIRNEQESAQ 208
G P T++W KDGKP+ I + + D G Y ++N
Sbjct: 8 ISGRPTPTVTWSKDGKPLKLSGRVQIETTASSTSLVIKNAERSDSGKYTLTLKNPAGEKS 67
Query: 209 ASGELK 214
A+ +K
Sbjct: 68 ATINVK 73
Score = 29.1 bits (66), Expect = 0.41
Identities = 11/22 (50%), Positives = 14/22 (63%)
Query: 246 SGNPTPEISWYLDGKKLVNAER 267
SG PTP ++W DGK L + R
Sbjct: 9 SGRPTPTVTWSKDGKPLKLSGR 30
>gnl|CDD|143302 cd05894, Ig_C5_MyBP-C, C5 immunoglobulin (Ig) domain of cardiac
myosin binding protein C (MyBP-C). Ig_C5_MyBP_C : the
C5 immunoglobulin (Ig) domain of cardiac myosin binding
protein C (MyBP-C). MyBP_C consists of repeated domains,
Ig and fibronectin type 3, and various linkers. Three
isoforms of MYBP_C exist and are included in this group:
cardiac(c), and fast and slow skeletal muscle (s)
MyBP_C. cMYBP_C has insertions between and inside
domains and an additional cardiac-specific Ig domain at
the N-terminus. For cMYBP_C an interaction has been
demonstrated between this C5 domain and the Ig C8
domain.
Length = 86
Score = 32.1 bits (73), Expect = 0.061
Identities = 16/66 (24%), Positives = 27/66 (40%), Gaps = 10/66 (15%)
Query: 160 GNPVKTISWMKDGKPVPDHNEPV----------FRIDSVRKEDKGMYQCVIRNEQESAQA 209
G P T++W + K + V F I+ +ED+G+Y + N A
Sbjct: 21 GEPAPTVTWSRGDKAFTETEGRVRVESYKDLSSFVIEGAEREDEGVYTITVTNPVGEDHA 80
Query: 210 SGELKL 215
S +K+
Sbjct: 81 SLFVKV 86
>gnl|CDD|143234 cd05757, Ig2_IL1R_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor (IL1R) and similar proteins.
Ig2_IL1R_like: domain similar to the second
immunoglobulin (Ig)-like domain of interleukin-1
receptor (IL1R). IL-1 alpha and IL-1 beta are cytokines
which participate in the regulation of inflammation,
immune responses, and hematopoiesis. These cytokines
bind to the IL-1 receptor type 1 (IL1R1), which is
activated on additional association with an accessory
protein, IL1RAP. IL-1 also binds a second receptor
designated type II (IL1R2). Mature IL1R1 consists of
three IG-like domains, a transmembrane domain, and a
large cytoplasmic domain. Mature IL1R2 is organized
similarly except that it has a short cytoplasmic domain.
The latter does not initiate signal transduction. A
naturally occurring cytokine IL-1RA (IL-1 receptor
antagonist) is widely expressed and binds to IL-1
receptors, inhibiting the binding of IL-1 alpha and IL-1
beta. This group also contains ILIR-like 1 (IL1R1L)
which maps to the same chromosomal location as IL1R1 and
IL1R2.
Length = 92
Score = 31.9 bits (73), Expect = 0.065
Identities = 14/70 (20%), Positives = 25/70 (35%), Gaps = 10/70 (14%)
Query: 141 PTVQTIDFGRPAQFTC-----KYEGNPVKTISWMKDGKPVPDHNEPVFR-----IDSVRK 190
Q + + + C N + + W KD K + + + I +V +
Sbjct: 2 SYKQILFSTKGGKIVCPDLDDFKNENTLPPVQWYKDCKLLEGDRKRFVKGSKLLIQNVTE 61
Query: 191 EDKGMYQCVI 200
ED G Y C +
Sbjct: 62 EDAGNYTCKL 71
>gnl|CDD|143239 cd05762, Ig8_MLCK, Eighth immunoglobulin (Ig)-like domain of human
myosin light-chain kinase (MLCK). Ig8_MLCK: the eighth
immunoglobulin (Ig)-like domain of human myosin
light-chain kinase (MLCK). MLCK is a key regulator of
different forms of cell motility involving actin and
myosin II. Agonist stimulation of smooth muscle cells
increases cytosolic Ca2+, which binds calmodulin. This
Ca2+-calmodulin complex in turn binds to and activates
MLCK. Activated MLCK leads to the phosphorylation of the
20 kDa myosin regulatory light chain (RLC) of myosin II
and the stimulation of actin-activated myosin MgATPase
activity. MLCK is widely present in vertebrate tissues;
it phosphorylates the 20 kDa RLC of both smooth and
nonmuscle myosin II. Phosphorylation leads to the
activation of the myosin motor domain and altered
structural properties of myosin II. In smooth muscle
MLCK it is involved in initiating contraction. In
nonmuscle cells, MLCK may participate in cell division
and cell motility; it has been suggested MLCK plays a
role in cardiomyocyte differentiation and contraction
through regulation of nonmuscle myosin II.
Length = 98
Score = 32.2 bits (73), Expect = 0.067
Identities = 23/91 (25%), Positives = 34/91 (37%), Gaps = 9/91 (9%)
Query: 141 PTVQTIDFGRPAQFTCKYEGNPVKTISWMKDGKPVPD---------HNEPVFRIDSVRKE 191
P + G + CK G T +WMK K + + N I ++E
Sbjct: 7 PEDMKVRAGESVELFCKVTGTQPITCTWMKFRKQIQEGEGIKIENTENSSKLTITEGQQE 66
Query: 192 DKGMYQCVIRNEQESAQASGELKLGGRFDPP 222
G Y + N+ S QA L + + DPP
Sbjct: 67 HCGCYTLEVENKLGSRQAQVNLTVVDKPDPP 97
>gnl|CDD|143262 cd05854, Ig6_Contactin-2, Sixth Ig domain of contactin-2.
Ig6_Contactin-2: Sixth Ig domain of the neural cell
adhesion molecule contactin-2-like. Contactins are
comprised of six Ig domains followed by four fibronectin
type III (FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-2 (TAG-1,
axonin-1) facilitates cell adhesion by homophilic
binding between molecules in apposed membranes. It may
play a part in the neuronal processes of neurite
outgrowth, axon guidance and fasciculation, and neuronal
migration. The first four Ig domains form the
intermolecular binding fragment, which arranges as a
compact U-shaped module by contacts between IG domains 1
and 4, and domains 2 and 3. The different contactins
show different expression patterns in the central
nervous system. During development and in adulthood,
contactin-2 is transiently expressed in subsets of
central and peripheral neurons. Contactin-2 is also
expressed in retinal amacrine cells in the developing
chick retina, corresponding to the period of formation
and maturation of AC proce sses.
Length = 85
Score = 31.6 bits (71), Expect = 0.075
Identities = 14/43 (32%), Positives = 19/43 (44%)
Query: 63 VKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVTAP 105
VK+ G L+I A++ +G Y C V S L V P
Sbjct: 42 VKETIGDLVIVNAQLSHAGTYTCTAQTVVDSASASATLVVRGP 84
>gnl|CDD|143241 cd05764, Ig_2, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_2: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 74
Score = 31.3 bits (71), Expect = 0.089
Identities = 22/76 (28%), Positives = 35/76 (46%), Gaps = 11/76 (14%)
Query: 149 GRPAQFTCKYEGNPVKTISWMK-DGKPVPDHNEP-VFR-------IDSVRKEDKGMYQCV 199
G+ A CK G+P I W+ DGK + + + V+ I +V+ D G + C+
Sbjct: 1 GQRATLRCKARGDPEPAIHWISPDGKLISNSSRTLVYDNGTLDILITTVK--DTGSFTCI 58
Query: 200 IRNEQESAQASGELKL 215
N A A+ EL +
Sbjct: 59 ASNAAGEATATVELHI 74
Score = 30.1 bits (68), Expect = 0.22
Identities = 18/54 (33%), Positives = 27/54 (50%), Gaps = 9/54 (16%)
Query: 46 KFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETV 99
K I SSR + +GTL I V+D+G + C+ +N+ GE+ TV
Sbjct: 26 KLISNSSRTLVYD--------NGTLDILITTVKDTGSFTCIASNA-AGEATATV 70
Score = 27.5 bits (61), Expect = 1.9
Identities = 12/27 (44%), Positives = 16/27 (59%), Gaps = 1/27 (3%)
Query: 242 KCIASGNPTPEISWYL-DGKKLVNAER 267
+C A G+P P I W DGK + N+ R
Sbjct: 7 RCKARGDPEPAIHWISPDGKLISNSSR 33
>gnl|CDD|143261 cd05853, Ig6_Contactin-4, Sixth Ig domain of contactin-4.
Ig6_Contactin-4: sixth Ig domain of the neural cell
adhesion molecule contactin-4. Contactins are neural
cell adhesion molecules, and are comprised of six Ig
domains followed by four fibronectin type III (FnIII)
domains anchored to the membrane by
glycosylphosphatidylinositol. The different contactins
show different expression patterns in the central
nervous system. Highest expresson of contactin-4 is in
testes, thyroid, small intestine, uterus and brain.
Contactin-4 plays a role in the response of
neuroblastoma cells to differentiating agents, such as
retinoids. The contactin 4 gene is associated with
cerebellar degeneration in spinocerebellar ataxia type
16.
Length = 85
Score = 31.5 bits (71), Expect = 0.10
Identities = 14/39 (35%), Positives = 23/39 (58%)
Query: 67 SGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVTAP 105
+G L+I+ +++ +GKY+C+V SV S L V P
Sbjct: 46 AGDLMIRSIQLKHAGKYVCMVQTSVDKLSAAADLIVRGP 84
>gnl|CDD|143278 cd05870, Ig5_NCAM-2, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-2 (also known as
OCAM/mamFas II and RNCAM). Ig5_NCAM-2: the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-2 (also known as OCAM/mamFas II and
RNCAM). NCAM-2 is organized similarly to NCAM ,
including five N-terminal Ig-like domains and two
fibronectin type III domains. NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE), and may function like NCAM, as an
adhesion molecule.
Length = 98
Score = 31.5 bits (71), Expect = 0.10
Identities = 19/66 (28%), Positives = 25/66 (37%), Gaps = 16/66 (24%)
Query: 149 GRPAQFTCKYEGNPVKTISWMK--------DGKPVPD--------HNEPVFRIDSVRKED 192
A +CK EG P+ I+W + +G PD H E I V+ D
Sbjct: 16 NGAATLSCKAEGEPIPEITWKRASDGHTFSEGDKSPDGRIEVKGQHGESSLHIKDVKLSD 75
Query: 193 KGMYQC 198
G Y C
Sbjct: 76 SGRYDC 81
Score = 26.5 bits (58), Expect = 7.1
Identities = 12/35 (34%), Positives = 16/35 (45%), Gaps = 2/35 (5%)
Query: 221 PPVIKESFSDETLNPGPNYYFKCIASGNPTPEISW 255
P +I+ +ET C A G P PEI+W
Sbjct: 3 PHIIQ--LKNETTVENGAATLSCKAEGEPIPEITW 35
>gnl|CDD|143283 cd05875, Ig6_hNeurofascin_like, Sixth immunoglobulin (Ig)-like
domain of human neurofascin (NF).
Ig6_hNeurofascin_like: the sixth immunoglobulin
(Ig)-like domain of human neurofascin (NF). NF belongs
to the L1 subfamily of cell adhesion molecules (CAMs)
and is comprised of an extracellular region having six
Ig-like domains and five fibronectin type III domains, a
transmembrane region, and a cytoplasmic domain. NF has
many alternatively spliced isoforms having different
temporal expression patterns during development. NF
participates in axon subcellular targeting and synapse
formation, however little is known of the functions of
the different isoforms.
Length = 77
Score = 30.7 bits (69), Expect = 0.13
Identities = 22/68 (32%), Positives = 31/68 (45%), Gaps = 13/68 (19%)
Query: 156 CKYEGNPVKTISWMKDGKPVPDHNEP---------VFRIDSV---RKED-KGMYQCVIRN 202
C+ +GNPV T W ++GK +P ID R ED +G YQC RN
Sbjct: 5 CEAKGNPVPTFQWTRNGKFFNVAKDPRVSMRRRSGTLVIDFSGGGRPEDYEGEYQCFARN 64
Query: 203 EQESAQAS 210
+A ++
Sbjct: 65 NLGTALSN 72
Score = 26.1 bits (57), Expect = 7.0
Identities = 9/21 (42%), Positives = 11/21 (52%)
Query: 240 YFKCIASGNPTPEISWYLDGK 260
+C A GNP P W +GK
Sbjct: 2 IIECEAKGNPVPTFQWTRNGK 22
>gnl|CDD|143209 cd05732, Ig5_NCAM-1_like, Fifth immunoglobulin (Ig)-like domain
of Neural Cell Adhesion Molecule NCAM-1 (NCAM) and
similar proteins. Ig5_NCAM-1 like: domain similar to
the fifth immunoglobulin (Ig)-like domain of Neural
Cell Adhesion Molecule NCAM-1 (NCAM). NCAM plays
important roles in the development and regeneration of
the central nervous system, in synaptogenesis and
neural migration. NCAM mediates cell-cell and
cell-substratum recognition and adhesion via homophilic
(NCAM-NCAM), and heterophilic (NCAM-non-NCAM),
interactions. NCAM is expressed as three major isoforms
having different intracellular extensions. The
extracellular portion of NCAM has five N-terminal
Ig-like domains and two fibronectin type III domains.
The double zipper adhesion complex model for NCAM
homophilic binding involves Ig1, Ig2, and Ig3. By this
model, Ig1 and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM
is modulated by the addition of polysialic acid chains
to the fifth Ig-like domain. Also included in this
group is NCAM-2 (also known as OCAM/mamFas II and
RNCAM) NCAM-2 is differentially expressed in the
developing and mature olfactory epithelium (OE).
Length = 96
Score = 31.0 bits (70), Expect = 0.15
Identities = 9/27 (33%), Positives = 19/27 (70%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGES 95
+L +K+ ++ D+G+Y C +N +GG+
Sbjct: 63 SLTLKDVQLTDAGRYDCEASNRIGGDQ 89
Score = 29.4 bits (66), Expect = 0.57
Identities = 15/65 (23%), Positives = 22/65 (33%), Gaps = 14/65 (21%)
Query: 152 AQFTCKYEGNPVKTISW------MKDGKPVPD--------HNEPVFRIDSVRKEDKGMYQ 197
TC+ EG+P+ I+W +G D + V+ D G Y
Sbjct: 19 ITLTCEAEGDPIPEITWRRATRNFSEGDKSLDGRIVVRGHARVSSLTLKDVQLTDAGRYD 78
Query: 198 CVIRN 202
C N
Sbjct: 79 CEASN 83
Score = 28.3 bits (63), Expect = 1.4
Identities = 8/13 (61%), Positives = 10/13 (76%)
Query: 243 CIASGNPTPEISW 255
C A G+P PEI+W
Sbjct: 23 CEAEGDPIPEITW 35
>gnl|CDD|143307 cd05899, IgV_TCR_beta, Immunoglobulin (Ig) variable (V) domain of
T-cell receptor (TCR) bet a chain. IgV_TCR_beta:
immunoglobulin (Ig) variable domain of the beta chain of
alpha/beta T-cell antigen receptors (TCRs). TCRs mediate
antigen recognition by T lymphocytes, and are composed
of alpha and beta, or gamma and delta, polypeptide
chains with variable (V) and constant (C) regions. This
group includes the variable domain of the alpha chain of
alpha/beta TCRs. Alpha/beta TCRs recognize antigen as
peptide fragments presented by major histocompatibility
complex (MHC) molecules. The variable domain of TCRs is
responsible for antigen recognition, and is located at
the N-terminus of the receptor. Gamma/delta TCRs
recognize intact protein antigens; they recognize
proteins antigens directly and without antigen
processing, and MHC independently of the bound peptide.
Length = 110
Score = 31.1 bits (71), Expect = 0.16
Identities = 19/48 (39%), Positives = 23/48 (47%), Gaps = 8/48 (16%)
Query: 61 DRVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVE------TVLTV 102
R +L IK A+ EDS YLC S+GG + E T LTV
Sbjct: 65 SRPSLTRSSLTIKSAEPEDSAVYLCAS--SLGGGADEAYFGPGTRLTV 110
>gnl|CDD|143195 cd05718, Ig1_PVR_like, First immunoglobulin (Ig) domain of
poliovirus receptor (PVR, also known as CD155) and
similar proteins. Ig1_PVR_like: domain similar to the
first immunoglobulin (Ig) domain of poliovirus receptor
(PVR, also known as CD155). Poliovirus (PV) binds to
its cellular receptor (PVR/CD155) to initiate
infection. CD155 is a membrane-anchored, single-span
glycoprotein; its extracellular region has three
Ig-like domains. There are four different isotypes of
CD155 (referred to as alpha, beta, gamma, and delta),
that result from alternate splicing of the CD155 mRNA,
and have identical extracellular domains. CD155-beta
and - gamma, are secreted, CD155-alpha and delta are
membrane-bound and function as PV receptors. The virus
recognition site is contained in the amino-terminal
domain, D1. Having the virus attachment site on the
receptor distal from the plasma membrane, may be
important for successful initiation of infection of
cells by the virus. CD155 binds in the poliovirus
"canyon" with a footprint similar to that of the
intercellular adhesion molecule-1 receptor on human
rhinoviruses. This group also includes the first
Ig-like domain of nectin-1 (also known as poliovirus
receptor related protein(PVRL)1; CD111), nectin-3 (also
known as PVRL 3), nectin-4 (also known as PVRL4; LNIR
receptor)and DNAX accessory molecule 1 (DNAM-1; CD226).
Length = 98
Score = 30.4 bits (69), Expect = 0.28
Identities = 15/59 (25%), Positives = 22/59 (37%), Gaps = 16/59 (27%)
Query: 43 MWFKFIEGSSRKVAV-----------PLNDRVKQV-----SGTLIIKEAKVEDSGKYLC 85
W K GS + +AV RV + T+ I ++ED G Y+C
Sbjct: 21 TWMKITGGSKQNIAVFHPQYGISIPPSYEGRVSFLNSSLEDATISISNLRLEDEGNYIC 79
>gnl|CDD|143271 cd05863, Ig2_VEGFR-3, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
Ig2_VEGFR-3: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-3 (Flt-4) binds
two members of the VEGF family (VEGF-C and -D) and is
involved in tumor angiogenesis and growth.
Length = 67
Score = 29.5 bits (66), Expect = 0.28
Identities = 13/42 (30%), Positives = 19/42 (45%), Gaps = 1/42 (2%)
Query: 162 PVKTISWMKDGKPV-PDHNEPVFRIDSVRKEDKGMYQCVIRN 202
P W KDGK + H++ +I V + G Y V+ N
Sbjct: 11 PPPEFQWYKDGKLISGKHSQHSLQIKDVTEASAGTYTLVLWN 52
>gnl|CDD|219514 pfam07686, V-set, Immunoglobulin V-set domain. This domain is
found in antibodies as well as neural protein P0 and
CTL4 amongst others.
Length = 114
Score = 30.7 bits (69), Expect = 0.30
Identities = 22/90 (24%), Positives = 34/90 (37%), Gaps = 4/90 (4%)
Query: 15 TFSSVSDIIRFKKPGGESFALLCE-AQENMWFKFIEGSSRKVAVPLNDRVKQVSGTLIIK 73
+ S + + +K+P G+ L+ K +V + N S L I
Sbjct: 27 SSSGSTSVYWYKQPLGKGPELIIHYVTSTPNGKVGPRFKGRVTLSGNGSKNDFS--LTIS 84
Query: 74 EAKVEDSGKYLCVVNNSVGGESVE-TVLTV 102
++ DSG Y C V+N T LTV
Sbjct: 85 NLRLSDSGTYTCAVSNPNELVFGAGTRLTV 114
>gnl|CDD|143256 cd05848, Ig1_Contactin-5, First Ig domain of contactin-5.
Ig1_Contactin-5: First Ig domain of the neural cell
adhesion molecule contactin-5. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains, anchored to the membrane by
glycosylphosphatidylinositol. The different contactins
show different expression patterns in the central
nervous system. In rats, a lack of contactin-5 (NB-2)
results in an impairment of the neuronal activity in
the auditory system. Contactin-5 is expressed
specifically in the postnatal nervous system, peaking
at about 3 weeks postnatal. Contactin-5 is highly
expressed in the adult human brain in the occipital
lobe and in the amygdala; lower levels of expression
have been detected in the corpus callosum, caudate
nucleus, and spinal cord.
Length = 94
Score = 30.3 bits (68), Expect = 0.32
Identities = 25/86 (29%), Positives = 37/86 (43%), Gaps = 11/86 (12%)
Query: 14 PTFSSVSDIIRFKKPGGES-FALLCEAQEN-----MWFKFIEGSSRKVAVPLNDRVKQVS 67
P F D F E L CEA+ N W + + ++ + R +
Sbjct: 2 PVFVQEPDDAIFPTDSDEKKVILNCEARGNPVPTYRWLR----NGTEIDTESDYRYSLID 57
Query: 68 GTLIIKEA-KVEDSGKYLCVVNNSVG 92
G LII +V+DSG+Y C+ NS+G
Sbjct: 58 GNLIISNPSEVKDSGRYQCLATNSIG 83
Score = 28.7 bits (64), Expect = 1.1
Identities = 18/57 (31%), Positives = 26/57 (45%), Gaps = 12/57 (21%)
Query: 156 CKYEGNPVKTISWMKDGKPVPDHNEPVFR---IDSV-------RKEDKGMYQCVIRN 202
C+ GNPV T W+++G + E +R ID +D G YQC+ N
Sbjct: 26 CEARGNPVPTYRWLRNGTEI--DTESDYRYSLIDGNLIISNPSEVKDSGRYQCLATN 80
>gnl|CDD|143266 cd05858, Ig3_FGFR-2, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor 2 (FGFR2).
Ig3_FGFR-2-like; domain similar to the third
immunoglobulin (Ig)-like domain of human fibroblast
growth factor receptor 2 (FGFR2). Fibroblast growth
factors (FGFs) participate in morphogenesis,
development, angiogenesis, and wound healing. These
FGF-stimulated processes are mediated by four FGFR
tyrosine kinases (FGRF1-4). FGFRs are comprised of an
extracellular portion consisting of three Ig-like
domains, a transmembrane helix, and a cytoplasmic
portion having protein tyrosine kinase activity. The
highly conserved Ig-like domains 2 and 3, and the linker
region between D2 and D3 define a general binding site
for FGFs. FGFR2 is required for male sex determination.
Length = 90
Score = 29.9 bits (67), Expect = 0.38
Identities = 12/33 (36%), Positives = 18/33 (54%)
Query: 70 LIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
L ++ ED+G+Y C+ NS+G LTV
Sbjct: 57 LYLRNVTFEDAGEYTCLAGNSIGISHHSAWLTV 89
>gnl|CDD|143279 cd05871, Ig_Semaphorin_classIII, Immunoglobulin (Ig)-like domain
of class III semaphorin. Ig_Semaphorin_class III;
Immunoglobulin (Ig)-like domain of class III
semaphorins. Semaphorins are classified into various
classes on the basis of structural features additional
to the Sema domain. Class III semaphorins are a
vertebrate class having a Sema domain, an Ig domain, a
short basic domain, and are secreted. They have been
shown to be axonal guidance cues and have a part in the
regulation of the cardiovascular, immune and
respiratory systems. Sema3A, the prototype member of
this class III subfamily, induces growth cone collapse
and is an inhibitor of axonal sprouting. In perinatal
rat cortex as a chemoattractant, it functions to
direct, for pyramidal neurons, the orientated extension
of apical dendrites. It may play a role, prior to the
development of apical dendrites, in signaling the
radial migration of newborn cortical neurons towards
the upper layers. Sema3A selectively inhibits vascular
endothelial growth factor receptor (VEGF)-induced
angiogenesis and induces microvascular permeability.
This group also includes Sema3B, -C, -D, -E, -G.
Length = 91
Score = 29.6 bits (67), Expect = 0.47
Identities = 11/43 (25%), Positives = 18/43 (41%)
Query: 44 WFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCV 86
W G RK V +R+ L+++ + D+G Y C
Sbjct: 29 WLFQRGGDQRKEEVKTEERLIHTERGLLLRSLQRSDAGVYTCT 71
>gnl|CDD|143236 cd05759, Ig2_KIRREL3-like, Second immunoglobulin (Ig)-like domain
of Kirrel (kin of irregular chiasm-like) 3 (also known
as Neph2). Ig2_KIRREL3-like: domain similar to the
second immunoglobulin (Ig)-like domain of Kirrel (kin of
irregular chiasm-like) 3 (also known as Neph2). This
protein has five Ig-like domains, one transmembrane
domain, and a cytoplasmic tail. Included in this group
is mammalian Kirrel (Neph1), Kirrel2 (Neph3), and
Drosophila RST (irregular chiasm C-roughest) protein.
These proteins contain multiple Ig domains, have
properties of cell adhesion molecules, and are important
in organ development.
Length = 82
Score = 29.3 bits (66), Expect = 0.55
Identities = 11/24 (45%), Positives = 13/24 (54%), Gaps = 1/24 (4%)
Query: 243 CIASG-NPTPEISWYLDGKKLVNA 265
C A G P EI W+ DG+ L A
Sbjct: 6 CRARGAKPAAEIIWFRDGEVLDGA 29
>gnl|CDD|233709 TIGR02073, PBP_1c, penicillin-binding protein 1C. This subfamily
of the penicillin binding proteins includes the member
from E. coli designated penicillin-binding protein 1C.
Members have both transglycosylase and transpeptidase
domains and are involved in forming cross-links in the
late stages of peptidoglycan biosynthesis. All members
of this subfamily are presumed to have the same basic
function [Cell envelope, Biosynthesis and degradation of
murein sacculus and peptidoglycan].
Length = 727
Score = 31.2 bits (71), Expect = 0.57
Identities = 22/181 (12%), Positives = 37/181 (20%), Gaps = 35/181 (19%)
Query: 30 GESFALLCEAQENMWFKFIEGSSRKVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNN 89
G L C Q + WF + G S + V + I
Sbjct: 565 GNLPILPCPEQISTWF--LPGGSPPTLSEPHKPVVILINEGIAACLP------------- 609
Query: 90 SVGGESVETVLTVTAPLAAGVEPTVQTIDFGRPAQFTCKYEISPPLAAGVEPTVQTIDFG 149
LA K + + + P + I
Sbjct: 610 --------DKPEARQKLALFDVAAYFAQ----AGLPKRKPLLERNASLIISPPLDGIYIL 657
Query: 150 RPAQFTCKYEG------NPVKTISWMKDGKPVPDHNEPVFRIDSVRKEDKGMYQCVIRNE 203
R + W DGK + + G Y+ + ++
Sbjct: 658 RDPDGPKAALLLVLIAAGGASGLYWFLDGKLL--GEALPKQSILWWPPAPGFYRLSVVDD 715
Query: 204 Q 204
Sbjct: 716 D 716
>gnl|CDD|165539 PHA03282, PHA03282, envelope glycoprotein E; Provisional.
Length = 540
Score = 31.1 bits (70), Expect = 0.64
Identities = 20/76 (26%), Positives = 31/76 (40%), Gaps = 6/76 (7%)
Query: 43 MWFKFIEGSSRKVAVPLND-----RVKQVSGTLIIKEAKVEDSGKY-LCVVNNSVGGESV 96
W+ + ++ P + RV V+GTL+++EA+ DSG Y L V +
Sbjct: 94 AWYGRPDPAATGGLAPGPEFAWPPRVAVVNGTLVLREARETDSGMYVLSVSRAPNSTAAR 153
Query: 97 ETVLTVTAPLAAGVEP 112
V V P P
Sbjct: 154 AVVFLVVGPRPVPTPP 169
>gnl|CDD|143203 cd05726, Ig4_Robo, Third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig4_Robo: domain similar to the
third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 90
Score = 29.2 bits (65), Expect = 0.65
Identities = 19/64 (29%), Positives = 24/64 (37%), Gaps = 14/64 (21%)
Query: 149 GRPAQFTCKYEGNPVKTISWMKDGK---------PVPDHNEPV-----FRIDSVRKEDKG 194
GR F C+ GNP I W K+G P V I +V++ D G
Sbjct: 1 GRTVTFQCEATGNPQPAIFWQKEGSQNLLFSYQPPQSSSRFSVSQTGDLTITNVQRSDVG 60
Query: 195 MYQC 198
Y C
Sbjct: 61 YYIC 64
Score = 27.6 bits (61), Expect = 2.1
Identities = 11/26 (42%), Positives = 15/26 (57%)
Query: 236 GPNYYFKCIASGNPTPEISWYLDGKK 261
G F+C A+GNP P I W +G +
Sbjct: 1 GRTVTFQCEATGNPQPAIFWQKEGSQ 26
>gnl|CDD|143277 cd05869, Ig5_NCAM-1, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig5_NCAM-1: The fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM). NCAM plays
important roles in the development and regeneration of
the central nervous system, in synaptogenesis and neural
migration. NCAM mediates cell-cell and cell-substratum
recognition and adhesion via homophilic (NCAM-NCAM) and
heterophilic (NCAM-non-NCAM) interactions. NCAM is
expressed as three major isoforms having different
intracellular extensions. The extracellular portion of
NCAM has five N-terminal Ig-like domains and two
fibronectin type III domains. The double zipper adhesion
complex model for NCAM homophilic binding involves Ig1,
Ig2, and Ig3. By this model, Ig1 and Ig2 mediate
dimerization of NCAM molecules situated on the same cell
surface (cis interactions), and Ig3 domains mediate
interactions between NCAM molecules expressed on the
surface of opposing cells (trans interactions), through
binding to the Ig1 and Ig2 domains. The adhesive ability
of NCAM is modulated by the addition of polysialic acid
chains to the fifth Ig-like domain.
Length = 97
Score = 29.2 bits (65), Expect = 0.67
Identities = 12/34 (35%), Positives = 21/34 (61%)
Query: 69 TLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
+L +K + D+G+YLC +N++G +S L V
Sbjct: 64 SLTLKYIQYTDAGEYLCTASNTIGQDSQSMYLEV 97
Score = 26.5 bits (58), Expect = 6.1
Identities = 9/25 (36%), Positives = 15/25 (60%)
Query: 243 CIASGNPTPEISWYLDGKKLVNAER 267
C ASG+P P I+W + + + E+
Sbjct: 24 CEASGDPIPSITWRTSTRNISSEEK 48
>gnl|CDD|143303 cd05895, Ig_Pro_neuregulin-1, Immunoglobulin (Ig)-like domain
found in neuregulin (NRG)-1. Ig_Pro_neuregulin-1:
immunoglobulin (Ig)-like domain found in neuregulin
(NRG)-1. There are many NRG-1 isoforms which arise from
the alternative splicing of mRNA. NRG-1 belongs to the
neuregulin gene family, which is comprised of four
genes. This group represents NRG-1. NRGs are signaling
molecules, which participate in cell-cell interactions
in the nervous system, breast, and heart, and other
organ systems, and are implicated in the pathology of
diseases including schizophrenia, multiple sclerosis,
and breast cancer. The NRG-1 protein binds to and
activates the tyrosine kinases receptors ErbB3 and
ErbB4, initiating signaling cascades. NRG-1 has
multiple functions; for example, in the brain it
regulates various processes such as radial glia
formation and neuronal migration, dendritic
development, and expression of neurotransmitters
receptors; in the peripheral nervous system NRG-1
regulates processes such as target cell
differentiation, and Schwann cell survival.
Length = 76
Score = 28.4 bits (63), Expect = 0.84
Identities = 14/35 (40%), Positives = 24/35 (68%)
Query: 62 RVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESV 96
R K+ S L I +A + D+G+Y C+V++ +G +SV
Sbjct: 38 RKKKKSSELQISKASLADNGEYKCMVSSKLGNDSV 72
>gnl|CDD|165173 PHA02826, PHA02826, IL-1 receptor-like protein; Provisional.
Length = 227
Score = 30.3 bits (68), Expect = 0.89
Identities = 13/31 (41%), Positives = 18/31 (58%), Gaps = 2/31 (6%)
Query: 57 VPLNDRVKQVSG--TLIIKEAKVEDSGKYLC 85
V DR++ + TL+IK A +DSG Y C
Sbjct: 175 VLYTDRIQLRNNNSTLVIKSATHDDSGIYTC 205
>gnl|CDD|165149 PHA02785, PHA02785, IL-beta-binding protein; Provisional.
Length = 326
Score = 30.4 bits (68), Expect = 0.91
Identities = 20/82 (24%), Positives = 35/82 (42%), Gaps = 7/82 (8%)
Query: 60 NDRVKQVS-GTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVTAPLAAG-VEPTVQ-- 115
N R+KQ + G + I++ + D+G Y CV+ G ++ V + + PT+Q
Sbjct: 168 NKRLKQRTPGIITIEDVRKNDAGYYTCVLKYIYGDKTYNVTRIVKLEVRDRIIPPTMQLP 227
Query: 116 ---TIDFGRPAQFTCKYEISPP 134
G C+ + PP
Sbjct: 228 EGVVTSIGSNLTIACRVSLRPP 249
>gnl|CDD|143180 cd04979, Ig_Semaphorin_C, Immunoglobulin (Ig)-like domain of
semaphorin. Ig_Semaphorin_C; Immunoglobulin (Ig)-like
domain in semaphorins. Semaphorins are transmembrane
protein that have important roles in a variety of
tissues. Functionally, semaphorins were initially
characterized for their importance in the development of
the nervous system and in axonal guidance. Later they
have been found to be important for the formation and
functioning of the cardiovascular, endocrine,
gastrointestinal, hepatic, immune, musculoskeletal,
renal, reproductive, and respiratory systems.
Semaphorins function through binding to their receptors
and transmembrane semaphorins also serves as receptors
themselves. Although molecular mechanism of semaphorins
is poorly understood, the Ig-like domains may involve in
ligand binding or dimerization.
Length = 89
Score = 28.5 bits (64), Expect = 1.1
Identities = 12/44 (27%), Positives = 18/44 (40%), Gaps = 9/44 (20%)
Query: 165 TISWMKDGKPVPDHNEPVFRID---------SVRKEDKGMYQCV 199
++ W+ G P+ EP R+ SV D G+Y C
Sbjct: 26 SVVWLFQGGPLQRKEEPEERLLVTEDGLLIRSVSPADAGVYTCQ 69
>gnl|CDD|143238 cd05761, Ig2_Necl-1-4_like, Second immunoglobulin (Ig)-like domain
of the nectin-like molecules Necl-1 - Necl-4 (also known
as cell adhesion molecules CADM3, CADM1, CADM2, and
CADM4, respectively). Ig2_Necl-1-4_like: domain similar
to the second immunoglobulin (Ig)-like domain of the
nectin-like molecules Necl-1 (also known as cell
adhesion molecule 3 (CADM3)), Necl-2 (CADM1), Necl-3
(CADM2) and Necl-4 (CADM4). These nectin-like molecules
have similar domain structures to those of nectins. At
least five nectin-like molecules have been identified
(Necl-1 - Necl-5). These have an extracellular region
containing three Ig-like domains, one transmembrane
region, and one cytoplasmic region. The N-terminal
Ig-like domain of the extracellular region belongs to
the V-type subfamily of Ig domains, is essential to
cell-cell adhesion, and plays a part in the interaction
with the envelope glycoprotein D of various viruses.
Necl-1 and Necl-2 have Ca(2+)-independent homophilic and
heterophilic cell-cell adhesion activity. Necl-1 is
specifically expressed in neural tissue and is important
to the formation of synapses, axon bundles, and
myelinated axons. Necl-2 is expressed in a wide variety
of tissues, and is a putative tumour suppressor gene,
which is downregulated in aggressive neuroblastoma.
Necl-3 has been shown to accumulate in tissues of the
central and peripheral nervous system, where it is
expressed in ependymal cells and myelinated axons. It
is observed at the interface between the axon shaft and
the myelin sheath. Necl-4 is expressed on Schwann cells,
and plays a key part in initiating peripheral nervous
system (PNS) myelination. Necl-4 participates in
cell-cell adhesion and is proposed to play a role in
tumor suppression.
Length = 82
Score = 28.5 bits (64), Expect = 1.1
Identities = 17/56 (30%), Positives = 22/56 (39%), Gaps = 13/56 (23%)
Query: 152 AQFTCKYEGN-PVKTISWMKDGKPVP-------DHNEPVFRIDS-----VRKEDKG 194
+ TC G+ P TI W K K + D N F + S V +ED G
Sbjct: 2 VELTCTSSGSKPAATIRWFKGDKELKGVKLKEEDENGKTFTVTSSLRFQVDREDDG 57
>gnl|CDD|143191 cd05714, Ig_CSPGs_LP, Immunoglobulin (Ig)-like domain of
chondroitin sulfate proteoglycans (CSPGs), human
cartilage link protein (LP) and similar proteins.
Ig_CSPGs_LP: immunoglobulin (Ig)-like domain similar to
that found in chondroitin sulfate proteoglycans (CSPGs)
and human cartilage link protein (LP). Included in this
group are the CSPGs aggrecan, versican, and neurocan. In
CSPGs this Ig-like domain is followed by hyaluronan
(HA)-binding tandem repeats, and a C-terminal region
with epidermal growth factor-like, lectin-like, and
complement regulatory protein-like domains. Separating
these N- and C-terminal regions is a nonhomologous
glycosaminoglycan attachment region. In cartilage,
aggrecan forms cartilage link protein stabilized
aggregates with hyaluronan (HA). These aggregates
contribute to the tissue's load bearing properties.
Aggrecan and versican have a wide distribution in
connective tissue and extracellular matrices. Neurocan
is localized almost exclusively in nervous tissue.
Aggregates having other CSPGs substituting for aggrecan
may contribute to the structural integrity of many
different tissues. There is considerable evidence that
HA-binding CSPGs are involved in developmental processes
in the central nervous system. Members of the vertebrate
HPLN (hyaluronan/HA and proteoglycan binding link)
protein family are physically linked adjacent to CSPG
genes.
Length = 106
Score = 28.8 bits (65), Expect = 1.2
Identities = 16/50 (32%), Positives = 25/50 (50%), Gaps = 1/50 (2%)
Query: 54 KVAVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTVT 103
+V VPL +L+I + ++EDSG+Y C V + + E L V
Sbjct: 55 RVRVPLY-PADPGDASLVITDLRLEDSGRYRCEVIDGIEDEQDTVELEVR 103
>gnl|CDD|143285 cd05877, Ig_LP_like, Immunoglobulin (Ig)-like domain of human
cartilage link protein (LP). Ig_LP_like: immunoglobulin
(Ig)-like domain similar to that that found in human
cartilage link protein (LP). In cartilage,
chondroitin-keratan sulfate proteoglycan (CSPG),
aggrecan, forms cartilage link protein stabilized
aggregates with hyaluronan (HA). These aggregates
contribute to the tissue's load bearing properties.
Aggregates having other CSPGs substituting for aggrecan
may contribute to the structural integrity of many
different tissues. Members of the vertebrate HPLN
(hyaluronan/HA and proteoglycan binding link) protein
family are physically linked adjacent to CSPG genes.
Length = 106
Score = 28.5 bits (64), Expect = 1.3
Identities = 13/41 (31%), Positives = 23/41 (56%)
Query: 62 RVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
R + +L+I + ++ED G+Y C V + + ESV L +
Sbjct: 62 RAHDLDASLVITDLRLEDYGRYRCEVIDGLEDESVVVALRL 102
>gnl|CDD|143270 cd05862, Ig1_VEGFR, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
IG1_VEGFR: first immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of
three members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGF_A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but
binds other members of the VEGF family (VEGF-C and -D).
VEGFRs bind VEGFs with high affinity with the IG-like
domains. VEGF-A is important to the growth and
maintenance of vascular endothelial cells and to the
development of new blood- and lymphatic-vessels in
physiological and pathological states. VEGFR-2 is a
major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A.
VEGFR-1 may play an inhibitory part in these processes
by binding VEGF and interfering with its interaction
with VEGFR-2. VEGFR-1 has a signaling role in mediating
monocyte chemotaxis. VEGFR-2 and -1 may mediate a
chemotactic and a survival signal in hematopoietic stem
cells or leukemia cells. VEGFR-3 has been shown to be
involved in tumor angiogenesis and growth.
Length = 86
Score = 28.2 bits (63), Expect = 1.4
Identities = 12/42 (28%), Positives = 20/42 (47%), Gaps = 4/42 (9%)
Query: 52 SRKVAVPLNDRV----KQVSGTLIIKEAKVEDSGKYLCVVNN 89
R +V N R ++S TL I+ + D G+Y C ++
Sbjct: 30 QRAKSVSENRRSLQEHTELSSTLTIENVTLSDLGRYTCTASS 71
>gnl|CDD|214650 smart00406, IGv, Immunoglobulin V-Type.
Length = 81
Score = 28.1 bits (63), Expect = 1.4
Identities = 12/43 (27%), Positives = 16/43 (37%), Gaps = 5/43 (11%)
Query: 157 KYEGNPVKT-ISWMKDGKPVPDHNEPVFRIDSVRKEDKGMYQC 198
Y K + KD N+ I ++R ED G Y C
Sbjct: 41 SYYQESYKGRFTISKD----TSKNDVSLTISNLRVEDTGTYYC 79
>gnl|CDD|143260 cd05852, Ig5_Contactin-1, Fifth Ig domain of contactin-1.
Ig5_Contactin-1: fifth Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 73
Score = 27.7 bits (61), Expect = 1.7
Identities = 16/66 (24%), Positives = 28/66 (42%), Gaps = 6/66 (9%)
Query: 156 CKYEGNPVKTISWMK------DGKPVPDHNEPVFRIDSVRKEDKGMYQCVIRNEQESAQA 209
CK + P SW K + + ++ I ++ K D+G Y C N + A +
Sbjct: 8 CKPKAAPKPKFSWSKGTELLVNNSRISIWDDGSLEILNITKLDEGSYTCFAENNRGKANS 67
Query: 210 SGELKL 215
+G L +
Sbjct: 68 TGVLSV 73
>gnl|CDD|143172 cd04971, Ig_TrKABC_d5, Fifth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d5: the fifth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrkB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 81
Score = 27.7 bits (62), Expect = 2.0
Identities = 10/24 (41%), Positives = 13/24 (54%), Gaps = 3/24 (12%)
Query: 242 KCI---ASGNPTPEISWYLDGKKL 262
CI GNP P ++WY +G L
Sbjct: 1 WCIPFTVRGNPKPTLTWYHNGAVL 24
>gnl|CDD|203711 pfam07654, C1-set, Immunoglobulin C1-set domain.
Length = 83
Score = 27.6 bits (62), Expect = 2.0
Identities = 6/16 (37%), Positives = 12/16 (75%)
Query: 165 TISWMKDGKPVPDHNE 180
T++W+K+G+ V + E
Sbjct: 26 TVTWLKNGQEVTEGVE 41
>gnl|CDD|143282 cd05874, Ig6_NrCAM, Sixth immunoglobulin (Ig)-like domain of NrCAM
(Ng (neuronglia) CAM-related cell adhesion molecule).
Ig6_NrCAM: sixth immunoglobulin (Ig)-like domain of
NrCAM (Ng (neuronglia) CAM-related cell adhesion
molecule). NrCAM belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region,
and an intracellular domain. NrCAM is primarily
expressed in the nervous system.
Length = 77
Score = 27.6 bits (61), Expect = 2.1
Identities = 18/68 (26%), Positives = 32/68 (47%), Gaps = 13/68 (19%)
Query: 156 CKYEGNPVKTISWMKDGKPVPDHNEP-----------VFRIDSVRKED--KGMYQCVIRN 202
C+ +G P + SW ++G +P V I + K + +G+YQC RN
Sbjct: 5 CEAKGKPPPSFSWTRNGTHFDIDKDPKVTMKPNTGTLVINIMNGEKAEAYEGVYQCTARN 64
Query: 203 EQESAQAS 210
E+ +A ++
Sbjct: 65 ERGAAVSN 72
>gnl|CDD|143176 cd04975, Ig4_SCFR_like, Fourth immunoglobulin (Ig)-like domain of
stem cell factor receptor (SCFR) and similar proteins.
Ig4_SCFR_like; fourth immunoglobulin (Ig)-like domain of
stem cell factor receptor (SCFR). In addition to SCFR
this group also includes the fourth Ig domain of
platelet-derived growth factor receptors (PDGFR), alpha
and beta, the fourth Ig domain of macrophage colony
stimulating factor (M-CSF), and the Ig domain of the
receptor tyrosine kinase KIT. SCFR and the PDGFR alpha
and beta have similar organization: an extracellular
component having five Ig-like domains, a transmembrane
segment, and a cytoplasmic portion having protein
tyrosine kinase activity. SCFR and its ligand SCF are
critical for normal hematopoiesis, mast cell
development, melanocytes and gametogenesis. SCF binds to
the second and third Ig-like domains of SCFR, this
fourth Ig-like domain participates in SCFR dimerization,
which follows ligand binding. Deletion of this fourth
SCFR_Ig-like domain abolishes the ligand-induced
dimerization of SCFR and completely inhibits signal
transduction. PDGF is a potent mitogen for connective
tissue cells. PDGF-stimulated processes are mediated by
three different PDGFs (PDGF-A,-B, and C). PDGFR alpha
binds to all three PDGFs, whereas the PDGFR beta, binds
only to PDGF-B. In mice, PDGFR alpha, and PDGFR beta,
are essential for normal development.
Length = 101
Score = 28.0 bits (63), Expect = 2.1
Identities = 17/89 (19%), Positives = 32/89 (35%), Gaps = 15/89 (16%)
Query: 142 TVQTIDFGRPAQFTCKYEGNP-VKTISWMKDGKPVPDH--------NEPVFRIDS----- 187
T ++ G + E P I+W D + + + NE +R S
Sbjct: 11 TTIFVNLGENLNLVVEVEAYPPPPHINWTYDNRTLTNKLTEIVTSENESEYRYVSELKLV 70
Query: 188 -VRKEDKGMYQCVIRNEQESAQASGELKL 215
+++ + G Y + N S + EL +
Sbjct: 71 RLKESEAGTYTFLASNSDASKSLTFELYV 99
>gnl|CDD|143304 cd05896, Ig1_IL1RAPL-1_like, First immunoglobulin (Ig)-like domain
of X-linked interleukin-1 receptor accessory
protein-like 1 (IL1RAPL-1). Ig1_ IL1RAPL-1_like: domain
similar to the first immunoglobulin (Ig)-like domain of
X-linked interleukin-1 receptor accessory protein-like 1
(IL1RAPL-1). IL-1 alpha and IL-1 beta are cytokines
which participates in the regulation of inflammation,
immune responses, and hematopoiesis. These cytokines
bind to the IL-1 receptor type 1 (IL1R1), which is
activated on additional association with an accessory
protein, IL1RAP. IL-1 also binds a second receptor
designated type II (IL1R2). Mature IL1R1 consists of
three Ig-like domains, a transmembrane domain, and a
large cytoplasmic domain. Mature IL1R2 is organized
similarly except that it has a short cytoplasmic domain.
The latter does not initiate signal transduction. A
naturally occurring cytokine IL-1RA (IL-1 receptor
antagonist) is widely expressed and binds to IL-1
receptors, inhibiting the binding of IL-1 alpha and IL-1
beta. IL1RAPL is encoded by a gene on the X-chromosome,
this gene is wholly or partially deleted in multiple
cases of non-syndromic mental retardation. This group
also contains IL1RAPL-2, which is also encoded by a gene
on the X-chromosome and is a candidate for another
non-syndromic mental retardation loci.
Length = 104
Score = 28.0 bits (62), Expect = 2.3
Identities = 14/41 (34%), Positives = 23/41 (56%)
Query: 62 RVKQVSGTLIIKEAKVEDSGKYLCVVNNSVGGESVETVLTV 102
R+ + ++ + A+++DSG Y CV+ NS V LTV
Sbjct: 64 RMSKEEDSIWFRPAELQDSGLYTCVLRNSTYCMKVSMSLTV 104
>gnl|CDD|165290 PHA02987, PHA02987, Ig domain OX-2-like protein; Provisional.
Length = 189
Score = 28.7 bits (64), Expect = 2.7
Identities = 13/41 (31%), Positives = 19/41 (46%), Gaps = 2/41 (4%)
Query: 69 TLIIKEAKVEDSGKYLCVVN--NSVGGESVETVLTVTAPLA 107
T++IK ++D+G Y C+ N S E L VT
Sbjct: 86 TILIKNVSLKDNGCYTCIFNTLLSKNNEKGVVCLNVTTDSY 126
>gnl|CDD|143258 cd05850, Ig1_Contactin-2, First Ig domain of contactin-2.
Ig1_Contactin-2: First Ig domain of the neural cell
adhesion molecule contactin-2-like. Contactins are
comprised of six Ig domains followed by four
fibronectin type III (FnIII) domains anchored to the
membrane by glycosylphosphatidylinositol. Contactin-2
(TAG-1, axonin-1) facilitates cell adhesion by
homophilic binding between molecules in apposed
membranes. It may play a part in the neuronal processes
of neurite outgrowth, axon guidance and fasciculation,
and neuronal migration. The first four Ig domains form
the intermolecular binding fragment, which arranges as
a compact U-shaped module by contacts between IG
domains 1 and 4, and domains 2 and 3. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-2
is also expressed in retinal amacrine cells in the
developing chick retina, corresponding to the period of
formation and maturation of AC processes.
Length = 94
Score = 27.6 bits (61), Expect = 2.8
Identities = 12/32 (37%), Positives = 16/32 (50%), Gaps = 1/32 (3%)
Query: 62 RVKQVSGTLIIKE-AKVEDSGKYLCVVNNSVG 92
R V+G L+I K D+G Y C+ N G
Sbjct: 52 RYTLVAGNLVINNPQKARDAGSYQCLAINRCG 83
>gnl|CDD|192763 pfam11465, Receptor_2B4, Natural killer cell receptor 2B4. 2B4
is a transmembrane receptor which is expressed
primarily on natural killer cells. It plays a role in
activating NK-mediated cytotoxicity through its
interaction with CD48 on target cells in a subset of
CD8 T cells. The structure of 2B4 consists of an
immunoglobulin variable domain fold and contains two
beta-sheets. One of the beta-sheets, the six-stranded
sheet, contains structural features that may have a
role in ligand recognition and receptor function.
Length = 108
Score = 27.5 bits (61), Expect = 3.3
Identities = 21/96 (21%), Positives = 34/96 (35%), Gaps = 12/96 (12%)
Query: 1 MVGSDLKPVGFKAPTFSSVSDIIRFKK--PGGESFALLCEAQENMWFKFIEGSSRKVAVP 58
+VG KPV + + I++KK + + V
Sbjct: 8 VVGVSGKPVQLRPSNIQTKDVSIQWKKKEQSHTKTEHI--------LNWENDGPSWSNVS 59
Query: 59 LNDRVKQVSG--TLIIKEAKVEDSGKYLCVVNNSVG 92
+D L IK A+++DSG YL + N+ G
Sbjct: 60 SSDIYGFDYENFALSIKSAQLQDSGHYLLEITNTGG 95
>gnl|CDD|143272 cd05864, Ig2_VEGFR-2, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
Ig2_VEGF-2: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-2 (KDR/Flk-1) is
a major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A;
VEGF-A is important to the growth and maintenance of
vascular endothelial cells and to the development of new
blood- and lymphatic-vessels in physiological and
pathological states. VEGF-A also interacts with VEGFR-1,
which it binds more strongly than VEGFR-2. VEGFR-2 and
-1 may mediate a chemotactic and a survival signal in
hematopoietic stem cells or leukemia cells.
Length = 70
Score = 26.4 bits (58), Expect = 3.8
Identities = 16/51 (31%), Positives = 23/51 (45%), Gaps = 6/51 (11%)
Query: 157 KYEGNPVKTISWMKDGKPVPDHNEPVFR-----IDSVRKEDKGMYQCVIRN 202
KY G P + W K+G+ + N R I V ++D G Y V+ N
Sbjct: 6 KYYGYPPPEVKWYKNGQLI-VLNHTFKRGVHLTIYEVTEKDAGNYTVVLTN 55
>gnl|CDD|143305 cd05897, Ig2_IL1R2_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor-2 (IL1R2). Ig2_IL1R2_like:
domain similar to the second immunoglobulin (Ig)-like
domain of interleukin-1 receptor-2 (IL1R2). IL-1 alpha
and IL-1 beta are cytokines which participate in the
regulation of inflammation, immune responses, and
hematopoiesis. These cytokines bind to the IL-1 receptor
type 1 (IL1R1), which is activated on additional
association with an accessory protein, IL1RAP. IL-1 also
binds the type II (IL1R2) represented in this group.
Mature IL1R2 consists of three IG-like domains, a
transmembrane domain, and a short cytoplasmic domain. It
lacks the large cytoplasmic domain of Mature IL1R1, and
does not initiate signal transduction. A naturally
occurring cytokine IL-1RA (IL-1 receptor antagonist) is
widely expressed and binds to IL-1 receptors, inhibiting
the binding of IL-1 alpha and IL-1 beta.
Length = 95
Score = 27.0 bits (60), Expect = 3.9
Identities = 12/51 (23%), Positives = 17/51 (33%), Gaps = 8/51 (15%)
Query: 166 ISWMKDGKPVPDHNE--------PVFRIDSVRKEDKGMYQCVIRNEQESAQ 208
+ W KD + NE I V D G Y C ++ E +
Sbjct: 32 LQWYKDSVLLDKDNEKFYSLKGSTYLHIIDVSLNDSGYYTCKLQFTHEGKK 82
>gnl|CDD|240382 PTZ00365, PTZ00365, 60S ribosomal protein L7Ae-like; Provisional.
Length = 266
Score = 28.3 bits (63), Expect = 4.4
Identities = 12/31 (38%), Positives = 17/31 (54%)
Query: 172 GKPVPDHNEPVFRIDSVRKEDKGMYQCVIRN 202
GK V V ID+VRKED+ + + +N
Sbjct: 188 GKLVHQKTAAVVAIDNVRKEDQAEFDNLCKN 218
>gnl|CDD|143193 cd05716, Ig_pIgR, Immunoglobulin (Ig)-like domain in the polymeric
Ig receptor (pIgR). Ig_pIgR: Immunoglobulin (Ig)-like
domain in the polymeric Ig receptor (pIgR). pIgR
delivers dimeric IgA and pentameric IgM to mucosal
secretions. Polymeric immunoglobulin (pIgs) are the
first defense against pathogens and toxins. IgA and IgM
can form polymers via an 18-residue extension at their
c-termini referred to as the tailpiece. pIgR transports
pIgs across mucosal epithelia into mucosal secretions.
Human pIgR is a glycosylated type I transmembrane
protein, comprised of a 620 residue extracellular
region, a 23 residue transmembrane region, and a 103
residue cytoplasmic tail. The extracellular region
contains five domains that share sequence similarity
with Ig variable (v) regions.
Length = 98
Score = 27.0 bits (60), Expect = 4.7
Identities = 7/19 (36%), Positives = 13/19 (68%)
Query: 185 IDSVRKEDKGMYQCVIRNE 203
++ +RKED G Y C + ++
Sbjct: 68 LNQLRKEDAGWYWCGVGDD 86
Score = 26.6 bits (59), Expect = 5.1
Identities = 7/21 (33%), Positives = 13/21 (61%)
Query: 69 TLIIKEAKVEDSGKYLCVVNN 89
T+ + + + ED+G Y C V +
Sbjct: 65 TVTLNQLRKEDAGWYWCGVGD 85
>gnl|CDD|132986 cd06655, STKc_PAK2, Catalytic domain of the Protein
Serine/Threonine Kinase, p21-activated kinase 2.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) 2, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
PAK2 belongs to group I. Group I PAKs contain a PBD
(p21-binding domain) overlapping with an AID
(autoinhibitory domain), a C-terminal catalytic domain,
SH3 binding sites and a non-classical SH3 binding site
for PIX (PAK-interacting exchange factor). PAK2 plays a
role in pro-apoptotic signaling. It is cleaved and
activated by caspases leading to morphological changes
during apoptosis. PAK2 is also activated in response to
a variety of stresses including DNA damage,
hyperosmolarity, serum starvation, and contact
inhibition, and may play a role in coordinating the
stress response. PAK2 also contributes to cancer cell
invasion through a mechanism distinct from that of PAK1.
Length = 296
Score = 27.8 bits (61), Expect = 6.2
Identities = 24/79 (30%), Positives = 37/79 (46%), Gaps = 4/79 (5%)
Query: 81 GKYLCVVNNSVGGESVETVLTVT----APLAAGVEPTVQTIDFGRPAQFTCKYEISPPLA 136
G L VV + G S+ V+T T A +AA +Q ++F Q + S +
Sbjct: 88 GDELFVVMEYLAGGSLTDVVTETCMDEAQIAAVCRECLQALEFLHANQVIHRDIKSDNVL 147
Query: 137 AGVEPTVQTIDFGRPAQFT 155
G++ +V+ DFG AQ T
Sbjct: 148 LGMDGSVKLTDFGFCAQIT 166
>gnl|CDD|143175 cd04974, Ig3_FGFR, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig3_FGFR:
third immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth factors
(FGFs) participate in morphogenesis, development,
angiogenesis, and wound healing. These FGF-stimulated
processes are mediated by four FGFR tyrosine kinases
(FGRF1-4). FGFRs are comprised of an extracellular
portion consisting of three Ig-like domains, a
transmembrane helix, and a cytoplasmic portion having
protein tyrosine kinase activity. The highly conserved
Ig-like domains 2 and 3, and the linker region between
D2 and D3 define a general binding site for FGFs.
Length = 90
Score = 26.2 bits (58), Expect = 7.3
Identities = 17/71 (23%), Positives = 28/71 (39%), Gaps = 13/71 (18%)
Query: 44 WFKFIEGSSRKV------------AVPLNDRVKQVSGTLIIKEAKVEDSGKYLCVVNNSV 91
W K +E + K +N + S L ++ +D+G+Y C+ NS+
Sbjct: 20 WLKHVEVNGSKYGPDGLPYVTVLKVAGINTTDNE-SEVLYLRNVSFDDAGEYTCLAGNSI 78
Query: 92 GGESVETVLTV 102
G LTV
Sbjct: 79 GPSHHSAWLTV 89
>gnl|CDD|143166 cd00098, IgC, Immunoglobulin Constant domain. IgC: Immunoglobulin
constant domain (IgC). Members of the IgC family are
components of immunoglobulin, T-cell receptors, CD1 cell
surface glycoproteins, secretory glycoproteins A/C, and
Major Histocompatibility Complex (MHC) class I/II
molecules. In immunoglobulins, each chain is composed of
one variable domain (IgV) and one or more IgC domains.
These names reflect the fact that the variability in
sequences is higher in the variable domain than in the
constant domain. The IgV domain is responsible for
antigen binding, and the IgC domain is involved in
oligomerization and molecular interactions.
Length = 95
Score = 26.3 bits (58), Expect = 7.6
Identities = 7/33 (21%), Positives = 12/33 (36%), Gaps = 4/33 (12%)
Query: 165 TISWMKDGKPVPDHNEPVFRIDSVRKEDKGMYQ 197
T++W+K+GK + G Y
Sbjct: 31 TVTWLKNGKELTSGVT----TTPPVPNSDGTYS 59
>gnl|CDD|143189 cd05712, Ig_Siglec_N, Immunoglobulin (Ig) domain at the N
terminus of Siglec (sialic acid-binding Ig-like
lectins). Ig_Siglec_N: immunoglobulin (Ig) domain at
the N terminus of Siglec (sialic acid-binding Ig-like
lectins). Siglec refers to a structurally related
protein family that specifically recognizes sialic acid
in oligosaccharide chains of glycoproteins and
glycolipids. Siglecs are type I transmembrane proteins,
organized as an extracellular module composed of
Ig-like domains (an N-terminal variable set of Ig-like
carbohydrate recognition domains, and 1 to 16 constant
Ig-like domains), followed by transmembrane and short
cytoplasmic domains. Human siglecs are classified into
two subgroups, one subgroup is comprised of
sialoadhesin (Siglec-1), CD22 (Siglec-2), and MAG, the
other subgroup is comprised of CD33-related Siglecs
which include CD33 (Siglec-3) and human Siglecs 5-11.
Length = 119
Score = 26.6 bits (59), Expect = 7.6
Identities = 9/15 (60%), Positives = 13/15 (86%)
Query: 69 TLIIKEAKVEDSGKY 83
+L+I +A+ EDSGKY
Sbjct: 81 SLLISDAQPEDSGKY 95
>gnl|CDD|143328 cd07704, Ig2_Nectin-3-4_like, Second immunoglobulin (Ig) domain of
nectin-3 (also known as poliovirus receptor related
protein 3), nectin-4 (poliovirus receptor related
protein 4) and similar proteins. Ig2_Nectin-3-4_like:
domain similar to the second immunoglobulin (Ig) domain
of nectin-3 (also known as poliovirus receptor related
protein 3) and nectin-4 (poliovirus receptor related
protein 4). Nectin-3 and nectin-4 belong to the nectin
family comprised of four transmembrane glycoproteins
(nectins-1 through 4). Nectins are synaptic cell
adhesion molecules (CAMs) which facilitate adhesion and
signaling at various intracellular junctions. Nectins
form homophilic cis-dimers, followed by homophilic and
heterophilic trans-dimers involved in cell-cell
adhesion. Nectin-2 and nectin-3 localize at
Sertoli-spermatid junctions where they form heterophilic
trans-interactions between the cells that are essential
for the formation and maintenance of the junctions and
for spermatid development. Nectin-3 has also been shown
to form a heterophilic trans-interaction with nectin-1
in ciliary epithelia, establishing the apex-apex
adhesion between the pigment and non-pigment cell
layers. Nectin-4 has recently been identified in
several types of breast carcinoma and can be used as a
histological and serological marker for breast cancer.
Length = 97
Score = 26.4 bits (58), Expect = 7.8
Identities = 9/34 (26%), Positives = 15/34 (44%), Gaps = 10/34 (29%)
Query: 232 TLNPGPNYYFK----------CIASGNPTPEISW 255
+L+PGP+ C A G P +++W
Sbjct: 4 SLSPGPSLLIDGGNGTTLAACCAAEGRPAADVTW 37
>gnl|CDD|132987 cd06656, STKc_PAK3, Catalytic domain of the Protein
Serine/Threonine Kinase, p21-activated kinase 3.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) 3, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
PAK3 belongs to group I. Group I PAKs contain a PBD
(p21-binding domain) overlapping with an AID
(autoinhibitory domain), a C-terminal catalytic domain,
SH3 binding sites and a non-classical SH3 binding site
for PIX (PAK-interacting exchange factor). PAK3 is
highly expressed in the brain. It is implicated in
neuronal plasticity, synapse formation, dendritic spine
morphogenesis, cell cycle progression, neuronal
migration, and apoptosis. Inactivating mutations in the
PAK3 gene cause X-linked non-syndromic mental
retardation, the severity of which depends on the site
of the mutation.
Length = 297
Score = 27.0 bits (59), Expect = 9.9
Identities = 24/79 (30%), Positives = 36/79 (45%), Gaps = 4/79 (5%)
Query: 81 GKYLCVVNNSVGGESVETVLTVT----APLAAGVEPTVQTIDFGRPAQFTCKYEISPPLA 136
G L VV + G S+ V+T T +AA +Q +DF Q + S +
Sbjct: 88 GDELWVVMEYLAGGSLTDVVTETCMDEGQIAAVCRECLQALDFLHSNQVIHRDIKSDNIL 147
Query: 137 AGVEPTVQTIDFGRPAQFT 155
G++ +V+ DFG AQ T
Sbjct: 148 LGMDGSVKLTDFGFCAQIT 166
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
0.315 0.135 0.404
Gapped
Lambda K H
0.267 0.0637 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 13,536,892
Number of extensions: 1258485
Number of successful extensions: 951
Number of sequences better than 10.0: 1
Number of HSP's gapped: 910
Number of HSP's successfully gapped: 196
Length of query: 267
Length of database: 10,937,602
Length adjustment: 95
Effective length of query: 172
Effective length of database: 6,723,972
Effective search space: 1156523184
Effective search space used: 1156523184
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 42 (22.0 bits)
S2: 58 (26.3 bits)