RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy1415
(622 letters)
>gnl|CDD|176049 cd08404, C2B_Synaptotagmin-4, C2 domain second repeat present in
Synaptotagmin 4. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 4, a member of
class 4 synaptotagmins, is located in the brain. It
functions are unknown. It, like synaptotagmin-11, has an
Asp to Ser substitution in its C2A domain. Previously
all synaptotagmins were thought to be calcium sensors in
the regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 136
Score = 245 bits (627), Expect = 7e-79
Identities = 93/133 (69%), Positives = 113/133 (84%), Gaps = 1/133 (0%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
RGE+LLSLC+QP NR T+VVLKAR+LPKMDV+GLADPYVKV L Y +R++KKKTHVKK
Sbjct: 1 RGELLLSLCYQPTTNRLTVVVLKARHLPKMDVSGLADPYVKVNLYYGKKRISKKKTHVKK 60
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWT 605
TLNPV+NESFVF++P++ L+ +S+E L+LD DRVTKNEVIGRL LG K+SG+ HW
Sbjct: 61 CTLNPVFNESFVFDIPSEELEDISVEFLVLDSDRVTKNEVIGRLVLGP-KASGSGGHHWK 119
Query: 606 DVCNSPRRQIAEW 618
+VCN PRRQIAEW
Sbjct: 120 EVCNPPRRQIAEW 132
Score = 71.3 bits (175), Expect = 8e-15
Identities = 37/101 (36%), Positives = 59/101 (58%), Gaps = 5/101 (4%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVLR 357
G++ + YQ N L V V+K R L D SG +DPYVKV+L K+++ KT V +
Sbjct: 2 GELLLSLCYQPTTNRLTVVVLKARHLPKMDV-SGLADPYVKVNLYYGKKRISKKKTHVKK 60
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
T NP++NE F F I +L+ ++ F+V DR +++++
Sbjct: 61 CTLNPVFNESFVFD-IPSEELEDISVEFLVLDSDRVTKNEV 100
>gnl|CDD|175975 cd00276, C2B_Synaptotagmin, C2 domain second repeat present in
Synaptotagmin. Synaptotagmin is a membrane-trafficking
protein characterized by a N-terminal transmembrane
region, a linker, and 2 C-terminal C2 domains. There are
several classes of Synaptotagmins. Previously all
synaptotagmins were thought to be calcium sensors in the
regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 134
Score = 194 bits (496), Expect = 2e-59
Identities = 76/132 (57%), Positives = 97/132 (73%), Gaps = 1/132 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
GE+LLSL + P A R T+VVLKARNLP D GL+DPYVKV LL G+++ KKKT VKK
Sbjct: 1 GELLLSLSYLPTAERLTVVVLKARNLPPSDGKGLSDPYVKVSLLQGGKKLKKKKTSVKKG 60
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
TLNPV+NE+F F+VPA+ L+ VSL + ++D D V +NEVIG++ LG D S G L HW +
Sbjct: 61 TLNPVFNEAFSFDVPAEQLEEVSLVITVVDKDSVGRNEVIGQVVLGPD-SGGEELEHWNE 119
Query: 607 VCNSPRRQIAEW 618
+ SPR+ IA W
Sbjct: 120 MLASPRKPIARW 131
Score = 89.6 bits (223), Expect = 3e-21
Identities = 36/101 (35%), Positives = 53/101 (52%), Gaps = 5/101 (4%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVLR 357
G++ + Y L V V+K R+L D G SDPYVKV LL +K+ KT V +
Sbjct: 1 GELLLSLSYLPTAERLTVVVLKARNLPPSDGK-GLSDPYVKVSLLQGGKKLKKKKTSVKK 59
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
T NP++NE F+F + QL+ +L V D R+++
Sbjct: 60 GTLNPVFNEAFSFD-VPAEQLEEVSLVITVVDKDSVGRNEV 99
>gnl|CDD|176050 cd08405, C2B_Synaptotagmin-7, C2 domain second repeat present in
Synaptotagmin 7. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 7, a member of
class 2 synaptotagmins, is located in presynaptic plasma
membranes in neurons, dense-core vesicles in endocrine
cells, and lysosomes in fibroblasts. It has been shown
to play a role in regulation of Ca2+-dependent lysosomal
exocytosis in fibroblasts and may also function as a
vesicular Ca2+-sensor. It is distinguished from the
other synaptotagmins by having over 12 splice forms.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 136
Score = 184 bits (469), Expect = 1e-55
Identities = 71/133 (53%), Positives = 102/133 (76%), Gaps = 1/133 (0%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
RGE+LLSLC+ P ANR T+ ++KARNL MD+ G +DPYVKV+L+YK +RV KKKT +KK
Sbjct: 1 RGELLLSLCYNPTANRITVNIIKARNLKAMDINGTSDPYVKVWLMYKDKRVEKKKTVIKK 60
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWT 605
RTLNPV+NESF+F +P + L +L + ++D DR+++N++IG++ LG KS G L HW
Sbjct: 61 RTLNPVFNESFIFNIPLERLRETTLIITVMDKDRLSRNDLIGKIYLGW-KSGGLELKHWK 119
Query: 606 DVCNSPRRQIAEW 618
D+ + PR+ +A+W
Sbjct: 120 DMLSKPRQPVAQW 132
Score = 87.9 bits (218), Expect = 1e-20
Identities = 42/104 (40%), Positives = 61/104 (58%), Gaps = 6/104 (5%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLL-PDK--QKVKTRVL 356
G++ + Y N + V +IK R+L D +G+SDPYVKV L+ DK +K KT +
Sbjct: 1 RGELLLSLCYNPTANRITVNIIKARNLKAMDI-NGTSDPYVKVWLMYKDKRVEKKKTVIK 59
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD-IG 399
++T NP++NE F F I +L+ +TL V DR SR+D IG
Sbjct: 60 KRTLNPVFNESFIFN-IPLERLRETTLIITVMDKDRLSRNDLIG 102
>gnl|CDD|176047 cd08402, C2B_Synaptotagmin-1, C2 domain second repeat present in
Synaptotagmin 1. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 1, a member of the
class 1 synaptotagmins, is located in the brain and
endocranium and localized to the synaptic vesicles and
secretory granules. It functions as a Ca2+ sensor for
fast exocytosis. It, like synaptotagmin-2, has an
N-glycosylated N-terminus. Synaptotagmin 4, a member of
class 4 synaptotagmins, is located in the brain. It
functions are unknown. It, like synaptotagmin-11, has an
Asp to Ser substitution in its C2A domain. Previously
all synaptotagmins were thought to be calcium sensors in
the regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 136
Score = 177 bits (450), Expect = 8e-53
Identities = 71/134 (52%), Positives = 99/134 (73%), Gaps = 1/134 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
G+I SL + P A + T+V+L+A+NL KMDV GL+DPYVK++L+ G+R+ KKKT +KKR
Sbjct: 2 GDICFSLRYVPTAGKLTVVILEAKNLKKMDVGGLSDPYVKIHLMQNGKRLKKKKTTIKKR 61
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
TLNP YNESF FEVP + + V L + +LD+DR+ KN+ IG++ LG ++G L HW+D
Sbjct: 62 TLNPYYNESFSFEVPFEQIQKVHLIVTVLDYDRIGKNDPIGKVVLGC-NATGAELRHWSD 120
Query: 607 VCNSPRRQIAEWLT 620
+ SPRR IA+W T
Sbjct: 121 MLASPRRPIAQWHT 134
Score = 75.9 bits (187), Expect = 2e-16
Identities = 36/104 (34%), Positives = 59/104 (56%), Gaps = 6/104 (5%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVL 356
LG I F ++Y L V +++ ++L D G SDPYVK+HL+ + +++ KT +
Sbjct: 1 LGDICFSLRYVPTAGKLTVVILEAKNLKKMDV-GGLSDPYVKIHLMQNGKRLKKKKTTIK 59
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD-IG 399
++T NP YNE F+F + Q++ L V +DR ++D IG
Sbjct: 60 KRTLNPYYNESFSFE-VPFEQIQKVHLIVTVLDYDRIGKNDPIG 102
>gnl|CDD|176034 cd08388, C2A_Synaptotagmin-4-11, C2A domain first repeat present in
Synaptotagmins 4 and 11. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmins 4 and 11, class 4
synaptotagmins, are located in the brain. Their
functions are unknown. They are distinguished from the
other synaptotagmins by having and Asp to Ser
substitution in their C2A domains. Previously all
synaptotagmins were thought to be calcium sensors in the
regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 128
Score = 163 bits (415), Expect = 7e-48
Identities = 65/133 (48%), Positives = 85/133 (63%), Gaps = 20/133 (15%)
Query: 299 KLGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ-KVKTRVLR 357
KLG +FF ++Y ++ L+V +I+CRDL D SG+SDPYVK+ LLP+K+ KVKTRVLR
Sbjct: 1 KLGTLFFSLRYNSEKKALLVNIIECRDLPAMDEQSGTSDPYVKLQLLPEKEHKVKTRVLR 60
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDI 417
KTRNP+Y+E FTF GI +QL+ +LHF V SFDRYSRDD+
Sbjct: 61 KTRNPVYDETFTFYGIPYNQLQ-------------------DLSLHFAVLSFDRYSRDDV 101
Query: 418 VGEVFYSLQSFET 430
+GEV L +
Sbjct: 102 IGEVVCPLAGADL 114
Score = 72.4 bits (178), Expect = 3e-15
Identities = 38/105 (36%), Positives = 63/105 (60%), Gaps = 4/105 (3%)
Query: 485 GRGEILLSLCWQPAANRFTIVVLKARNLPKMDV-TGLADPYVKVYLLYKGQRVAKKKTHV 543
G + SL + + +++ R+LP MD +G +DPYVK+ LL + + K KT V
Sbjct: 1 KLGTLFFSLRYNSEKKALLVNIIECRDLPAMDEQSGTSDPYVKLQLLPEKEH--KVKTRV 58
Query: 544 KKRTLNPVYNESFVF-EVPADNLDSVSLELLLLDWDRVTKNEVIG 587
++T NPVY+E+F F +P + L +SL +L +DR ++++VIG
Sbjct: 59 LRKTRNPVYDETFTFYGIPYNQLQDLSLHFAVLSFDRYSRDDVIG 103
>gnl|CDD|176048 cd08403, C2B_Synaptotagmin-3-5-6-9-10, C2 domain second repeat
present in Synaptotagmins 3, 5, 6, 9, and 10.
Synaptotagmin is a membrane-trafficking protein
characterized by a N-terminal transmembrane region, a
linker, and 2 C-terminal C2 domains. Synaptotagmin 3, a
member of class 3 synaptotagmins, is located in the
brain and localized to the active zone and plasma
membrane. It functions as a Ca2+ sensor for fast
exocytosis. It, along with synaptotagmins 5,6, and 10,
has disulfide bonds at its N-terminus. Synaptotagmin 9,
a class 5 synaptotagmins, is located in the brain and
localized to the synaptic vesicles. It is thought to be
a Ca2+-sensor for dense-core vesicle exocytosis.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 134
Score = 160 bits (406), Expect = 1e-46
Identities = 67/132 (50%), Positives = 97/132 (73%), Gaps = 1/132 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
GE++ SLC+ P A R T+ ++KARNL MD+TG +DPYVKV L+ +G+R+ KKKT VKK
Sbjct: 1 GELMFSLCYLPTAGRLTLTIIKARNLKAMDITGFSDPYVKVSLMCEGRRLKKKKTSVKKN 60
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
TLNP YNE+ VF+VP +N+D+VSL + ++D+DRV NE+IG +G + + G HW +
Sbjct: 61 TLNPTYNEALVFDVPPENVDNVSLIIAVVDYDRVGHNELIGVCRVGPN-ADGQGREHWNE 119
Query: 607 VCNSPRRQIAEW 618
+ +PR+ IA+W
Sbjct: 120 MLANPRKPIAQW 131
Score = 63.3 bits (154), Expect = 5e-12
Identities = 35/95 (36%), Positives = 50/95 (52%), Gaps = 5/95 (5%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDK---QKVKTRVLR 357
G++ F + Y L +T+IK R+L D +G SDPYVKV L+ + +K KT V +
Sbjct: 1 GELMFSLCYLPTAGRLTLTIIKARNLKAMDI-TGFSDPYVKVSLMCEGRRLKKKKTSVKK 59
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDR 392
T NP YNE F + P + +L V +DR
Sbjct: 60 NTLNPTYNEALVFD-VPPENVDNVSLIIAVVDYDR 93
>gnl|CDD|176051 cd08406, C2B_Synaptotagmin-12, C2 domain second repeat present in
Synaptotagmin 12. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 12, a member of
class 6 synaptotagmins, is located in the brain. It
functions are unknown. It, like synaptotagmins 8 and 13,
do not have any consensus Ca2+ binding sites. Previously
all synaptotagmins were thought to be calcium sensors in
the regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 136
Score = 119 bits (301), Expect = 6e-32
Identities = 57/132 (43%), Positives = 83/132 (62%), Gaps = 1/132 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
GEILLSL + P A R T+VV+KARNL + ADP+VKVYLL G++++KKKT VK+
Sbjct: 2 GEILLSLSYLPTAERLTVVVVKARNLVWDNGKTTADPFVKVYLLQDGRKISKKKTSVKRD 61
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
NP++NE+ +F VPA L +SL + + + K +G + + G +SG L+HW
Sbjct: 62 DTNPIFNEAMIFSVPAIVLQDLSLRVTVAESTEDGKTPNVGHV-IIGPAASGMGLSHWNQ 120
Query: 607 VCNSPRRQIAEW 618
+ S R+ +A W
Sbjct: 121 MLASLRKPVAMW 132
Score = 60.2 bits (146), Expect = 6e-11
Identities = 32/93 (34%), Positives = 48/93 (51%), Gaps = 5/93 (5%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVLR 357
G+I + Y L V V+K R+L + D ++DP+VKV+LL D +K+ KT V R
Sbjct: 2 GEILLSLSYLPTAERLTVVVVKARNL-VWDNGKTTADPFVKVYLLQDGRKISKKKTSVKR 60
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSF 390
NPI+NE F+ + L+ +L V
Sbjct: 61 DDTNPIFNEAMIFS-VPAIVLQDLSLRVTVAES 92
>gnl|CDD|176031 cd08385, C2A_Synaptotagmin-1-5-6-9-10, C2A domain first repeat
present in Synaptotagmins 1, 5, 6, 9, and 10.
Synaptotagmin is a membrane-trafficking protein
characterized by a N-terminal transmembrane region, a
linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a
member of class 1 synaptotagmins, is located in the
brain and endocranium and localized to the synaptic
vesicles and secretory granules. It functions as a Ca2+
sensor for fast exocytosis as do synaptotagmins 5, 6,
and 10. It is distinguished from the other
synaptotagmins by having an N-glycosylated N-terminus.
Synaptotagmins 5, 6, and 10, members of class 3
synaptotagmins, are located primarily in the brain and
localized to the active zone and plasma membrane. They
is distinguished from the other synaptotagmins by having
disulfide bonds at its N-terminus. Synaptotagmin 6 also
regulates the acrosome reaction, a unique Ca2+-regulated
exocytosis, in sperm. Synaptotagmin 9, a class 5
synaptotagmins, is located in the brain and localized to
the synaptic vesicles. It is thought to be a
Ca2+-sensor for dense-core vesicle exocytosis.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 124
Score = 115 bits (290), Expect = 2e-30
Identities = 48/101 (47%), Positives = 67/101 (66%), Gaps = 3/101 (2%)
Query: 299 KLGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPD-KQKVKTRVLR 357
KLG++ F + Y + N L V +I+ DL D G+SDPYVKV+LLPD K+K +T+V R
Sbjct: 1 KLGKLQFSLDYDFQSNQLTVGIIQAADLPAMDM-GGTSDPYVKVYLLPDKKKKFETKVHR 59
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
KT NP++NE FTF + +L TL F V+ FDR+S+ D+
Sbjct: 60 KTLNPVFNETFTFK-VPYSELGNKTLVFSVYDFDRFSKHDL 99
Score = 96.2 bits (240), Expect = 9e-24
Identities = 49/126 (38%), Positives = 76/126 (60%), Gaps = 9/126 (7%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKK--THV 543
G++ SL + +N+ T+ +++A +LP MD+ G +DPYVKVYLL KKK T V
Sbjct: 2 LGKLQFSLDYDFQSNQLTVGIIQAADLPAMDMGGTSDPYVKVYLLPD----KKKKFETKV 57
Query: 544 KKRTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIG--RLDLGGDKSSGTAL 601
++TLNPV+NE+F F+VP L + +L + D+DR +K+++IG R+ L G
Sbjct: 58 HRKTLNPVFNETFTFKVPYSELGNKTLVFSVYDFDRFSKHDLIGEVRVPL-LTVDLGHVT 116
Query: 602 THWTDV 607
W D+
Sbjct: 117 EEWRDL 122
>gnl|CDD|175992 cd04026, C2_PKC_alpha_gamma, C2 domain in Protein Kinase C (PKC)
alpha and gamma. A single C2 domain is found in PKC
alpha and gamma. The PKC family of serine/threonine
kinases regulates apoptosis, proliferation, migration,
motility, chemo-resistance, and differentiation. There
are 3 groups: group 1(alpha, betaI, beta II, gamma)
which require phospholipids and calcium, group 2 (delta,
epsilon, theta, eta) which do not require calcium for
activation, and group 3 (xi, iota/lambda) which are
atypical and can be activated in the absence of
diacylglycerol and calcium. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-I
topology.
Length = 131
Score = 114 bits (287), Expect = 6e-30
Identities = 47/108 (43%), Positives = 69/108 (63%), Gaps = 5/108 (4%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
RG I L + + N+ T+ V +A+NL MD GL+DPYVK+ L+ + K+KT K
Sbjct: 1 RGRIYLKISVK--DNKLTVEVREAKNLIPMDPNGLSDPYVKLKLIPDPKNETKQKTKTIK 58
Query: 546 RTLNPVYNESFVFEV-PADNLDSVSLELLLLDWDRVTKNEVIGRLDLG 592
+TLNPV+NE+F F++ PAD +S+E + DWDR T+N+ +G L G
Sbjct: 59 KTLNPVWNETFTFDLKPADKDRRLSIE--VWDWDRTTRNDFMGSLSFG 104
Score = 86.9 bits (216), Expect = 2e-20
Identities = 46/113 (40%), Positives = 67/113 (59%), Gaps = 15/113 (13%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPD---KQKVKTRVLR 357
G+I+ KI K+N L V V + ++L D P+G SDPYVK+ L+PD + K KT+ ++
Sbjct: 2 GRIYLKISV--KDNKLTVEVREAKNLIPMD-PNGLSDPYVKLKLIPDPKNETKQKTKTIK 58
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD-IGSTLHFVVFSF 409
KT NP++NE FTF + P K L V+ +DR +R+D +GS SF
Sbjct: 59 KTLNPVWNETFTFD-LKP-ADKDRRLSIEVWDWDRTTRNDFMGS------LSF 103
>gnl|CDD|176032 cd08386, C2A_Synaptotagmin-7, C2A domain first repeat present in
Synaptotagmin 7. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 7, a member of
class 2 synaptotagmins, is located in presynaptic plasma
membranes in neurons, dense-core vesicles in endocrine
cells, and lysosomes in fibroblasts. It has been shown
to play a role in regulation of Ca2+-dependent lysosomal
exocytosis in fibroblasts and may also function as a
vesicular Ca2+-sensor. It is distinguished from the
other synaptotagmins by having over 12 splice forms.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 125
Score = 110 bits (277), Expect = 1e-28
Identities = 45/106 (42%), Positives = 67/106 (63%), Gaps = 3/106 (2%)
Query: 299 KLGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPD-KQKVKTRVLR 357
LG+I F + Y +E+ L + ++K +L KD SG+SDP+VK++LLPD K K++T+V R
Sbjct: 1 NLGRIQFSVSYDFQESTLTLKILKAVELPAKDF-SGTSDPFVKIYLLPDKKHKLETKVKR 59
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD-IGSTL 402
K NP +NE F F G +L+ L+ V +DR+SR+D IG
Sbjct: 60 KNLNPHWNETFLFEGFPYEKLQQRVLYLQVLDYDRFSRNDPIGEVS 105
Score = 88.2 bits (219), Expect = 6e-21
Identities = 43/108 (39%), Positives = 65/108 (60%), Gaps = 5/108 (4%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLY-KGQRVAKKKTHVK 544
G I S+ + + T+ +LKA LP D +G +DP+VK+YLL K K +T VK
Sbjct: 2 LGRIQFSVSYDFQESTLTLKILKAVELPAKDFSGTSDPFVKIYLLPDKKH---KLETKVK 58
Query: 545 KRTLNPVYNESFVFE-VPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
++ LNP +NE+F+FE P + L L L +LD+DR ++N+ IG + L
Sbjct: 59 RKNLNPHWNETFLFEGFPYEKLQQRVLYLQVLDYDRFSRNDPIGEVSL 106
>gnl|CDD|176055 cd08410, C2B_Synaptotagmin-17, C2 domain second repeat present in
Synaptotagmin 17. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 17 is located in
the brain, kidney, and prostate and is thought to be a
peripheral membrane protein. Previously all
synaptotagmins were thought to be calcium sensors in the
regulation of neurotransmitter release and hormone
secretion, but it has been shown that not all of them
bind calcium. Of the 17 identified synaptotagmins only
8 bind calcium (1-3, 5-7, 9, 10). The function of the
two C2 domains that bind calcium are: regulating the
fusion step of synaptic vesicle exocytosis (C2A) and
binding to phosphatidyl-inositol-3,4,5-triphosphate
(PIP3) in the absence of calcium ions and to
phosphatidylinositol bisphosphate (PIP2) in their
presence (C2B). C2B also regulates also the recycling
step of synaptic vesicles. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 135
Score = 108 bits (272), Expect = 5e-28
Identities = 48/133 (36%), Positives = 83/133 (62%), Gaps = 2/133 (1%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAK-KKTHVKK 545
GE+LLSL + P+A R + +++A+ L + D++ +DP+VK+ L++ G ++ K KKT +
Sbjct: 1 GELLLSLNYLPSAGRLNVDIIRAKQLLQTDMSQGSDPFVKIQLVH-GLKLIKTKKTSCMR 59
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWT 605
T++P YNESF F+VP + L++VSL + + + N+ IGR+ +G S + HW
Sbjct: 60 GTIDPFYNESFSFKVPQEELENVSLVFTVYGHNVKSSNDFIGRIVIGQYSSGPSETNHWR 119
Query: 606 DVCNSPRRQIAEW 618
+ NS R + +W
Sbjct: 120 RMLNSQRTAVEQW 132
Score = 57.6 bits (139), Expect = 5e-10
Identities = 30/100 (30%), Positives = 52/100 (52%), Gaps = 5/100 (5%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTR---VLR 357
G++ + Y L V +I+ + L D S SDP+VK+ L+ + +KT+ +R
Sbjct: 1 GELLLSLNYLPSAGRLNVDIIRAKQLLQTDM-SQGSDPFVKIQLVHGLKLIKTKKTSCMR 59
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD 397
T +P YNE F+F + +L+ +L F V+ + S +D
Sbjct: 60 GTIDPFYNESFSFK-VPQEELENVSLVFTVYGHNVKSSND 98
>gnl|CDD|215765 pfam00168, C2, C2 domain.
Length = 85
Score = 106 bits (267), Expect = 7e-28
Identities = 40/86 (46%), Positives = 53/86 (61%), Gaps = 4/86 (4%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPA 562
+ V+ A+NLP D+ G +DPYVKV L GQ+ KKT V K TLNPV+NE+F FEV
Sbjct: 2 RVTVISAKNLPPKDLNGKSDPYVKVSLG--GQKKDTKKTKVVKNTLNPVWNETFTFEVTL 59
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIGR 588
L L + + D+DR K++ IG
Sbjct: 60 PELA--ELRIEVYDYDRFGKDDFIGE 83
Score = 94.3 bits (235), Expect = 2e-23
Identities = 38/88 (43%), Positives = 52/88 (59%), Gaps = 6/88 (6%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGIT 374
L VTVI ++L KD +G SDPYVKV L K+ KT+V++ T NP++NE FTF
Sbjct: 1 LRVTVISAKNLPPKD-LNGKSDPYVKVSLGGQKKDTKKTKVVKNTLNPVWNETFTFEVTL 59
Query: 375 PHQLKGSTLHFVVFSFDRYSRDD-IGST 401
P + L V+ +DR+ +DD IG
Sbjct: 60 PE---LAELRIEVYDYDRFGKDDFIGEV 84
>gnl|CDD|176052 cd08407, C2B_Synaptotagmin-13, C2 domain second repeat present in
Synaptotagmin 13. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 13, a member of
class 6 synaptotagmins, is located in the brain. It
functions are unknown. It, like synaptotagmins 8 and 12,
does not have any consensus Ca2+ binding sites.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 138
Score = 107 bits (269), Expect = 2e-27
Identities = 56/134 (41%), Positives = 86/134 (64%), Gaps = 3/134 (2%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGL--ADPYVKVYLLYKGQRVAKKKTHVK 544
GE+LLS+ + PAANR +VV+KA+NL + L D VKV L ++ ++ KK+T
Sbjct: 2 GEVLLSISYLPAANRLLVVVIKAKNLHSDQLKLLLGIDVSVKVTLKHQNAKLKKKQTKRA 61
Query: 545 KRTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHW 604
K +NPV+NE +FE+P++ L + S+EL +L+ D ++ +GR L G +SGT HW
Sbjct: 62 KHKINPVWNEMIMFELPSELLAASSVELEVLNQDSPGQSLPLGRCSL-GLHTSGTERQHW 120
Query: 605 TDVCNSPRRQIAEW 618
++ ++PRRQIA W
Sbjct: 121 EEMLDNPRRQIAMW 134
Score = 35.0 bits (80), Expect = 0.040
Identities = 27/96 (28%), Positives = 43/96 (44%), Gaps = 7/96 (7%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPS-GSSDPYVKVHLLPDKQKVKTRVLRKT 359
G++ I Y N L+V VIK ++L D VKV L K+K + ++
Sbjct: 2 GEVLLSISYLPAANRLLVVVIKAKNLHSDQLKLLLGIDVSVKVTLKHQNAKLKKKQTKRA 61
Query: 360 R---NPIYNEEFTFTGITPHQ-LKGSTLHFVVFSFD 391
+ NP++NE F P + L S++ V + D
Sbjct: 62 KHKINPVWNEMIMFE--LPSELLAASSVELEVLNQD 95
>gnl|CDD|176030 cd08384, C2B_Rabphilin_Doc2, C2 domain second repeat present in
Rabphilin and Double C2 domain. Rabphilin is found
neurons and in neuroendrocrine cells, while Doc2 is
found not only in the brain but in tissues, including
mast cells, chromaffin cells, and osteoblasts.
Rabphilin and Doc2s share highly homologous tandem C2
domains, although their N-terminal structures are
completely different: rabphilin contains an N-terminal
Rab-binding domain (RBD),7 whereas Doc2 contains an
N-terminal Munc13-1-interacting domain (MID). C2 domains
fold into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 133
Score = 107 bits (268), Expect = 2e-27
Identities = 48/132 (36%), Positives = 74/132 (56%), Gaps = 1/132 (0%)
Query: 489 ILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTL 548
IL+SL + + +++ NL MD G +DP+VK+YL + +K KT VKK+TL
Sbjct: 2 ILVSLMYNTQRRGLIVGIIRCVNLAAMDANGYSDPFVKLYLKPDAGKKSKHKTQVKKKTL 61
Query: 549 NPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTDVC 608
NP +NE F +++ +L +LE+ + D D N+ IG L LG + + G L HW D
Sbjct: 62 NPEFNEEFFYDIKHSDLAKKTLEITVWDKDIGKSNDYIGGLQLGIN-AKGERLRHWLDCL 120
Query: 609 NSPRRQIAEWLT 620
+P ++I W T
Sbjct: 121 KNPDKKIEAWHT 132
Score = 80.5 bits (199), Expect = 5e-18
Identities = 38/103 (36%), Positives = 55/103 (53%), Gaps = 6/103 (5%)
Query: 302 QIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVLRK 358
+I + Y + L+V +I+C +L D +G SDP+VK++L PD K KT+V +K
Sbjct: 1 KILVSLMYNTQRRGLIVGIIRCVNLAAMDA-NGYSDPFVKLYLKPDAGKKSKHKTQVKKK 59
Query: 359 TRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD-IGS 400
T NP +NEEF + I L TL V+ D +D IG
Sbjct: 60 TLNPEFNEEFFYD-IKHSDLAKKTLEITVWDKDIGKSNDYIGG 101
>gnl|CDD|176054 cd08409, C2B_Synaptotagmin-15, C2 domain second repeat present in
Synaptotagmin 15. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. It is thought to be involved in
the trafficking and exocytosis of secretory vesicles in
non-neuronal tissues and is Ca2+ independent. Human
synaptotagmin 15 has 2 alternatively spliced forms that
encode proteins with different C-termini. The larger,
SYT15a, contains a N-terminal TM region, a putative
fatty-acylation site, and 2 tandem C terminal C2
domains. The smaller, SYT15b, lacks the C-terminal
portion of the second C2 domain. Unlike most other
synaptotagmins it is nearly absent in the brain and
rather is found in the heart, lungs, skeletal muscle,
and testis. Previously all synaptotagmins were thought
to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 137
Score = 107 bits (268), Expect = 3e-27
Identities = 51/134 (38%), Positives = 76/134 (56%), Gaps = 2/134 (1%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
G+I +SL + P NR T+VVL+AR L ++D YVKV L+ + V KKT V
Sbjct: 1 LGDIQISLTYNPTLNRLTVVVLRARGLRQLDHAH-TSVYVKVSLMIHNKVVKTKKTEVVD 59
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDK-SSGTALTHW 604
+P +NESF F+V + LD+ SL L ++ V K++++GR+ LG + G L HW
Sbjct: 60 GAASPSFNESFSFKVTSRQLDTASLSLSVMQSGGVRKSKLLGRVVLGPFMYARGKELEHW 119
Query: 605 TDVCNSPRRQIAEW 618
D+ + P+ I W
Sbjct: 120 NDMLSKPKELIKRW 133
Score = 47.3 bits (113), Expect = 2e-06
Identities = 30/91 (32%), Positives = 44/91 (48%), Gaps = 6/91 (6%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTR---VL 356
LG I + Y N L V V++ R L D + YVKV L+ + VKT+ V+
Sbjct: 1 LGDIQISLTYNPTLNRLTVVVLRARGLRQLD--HAHTSVYVKVSLMIHNKVVKTKKTEVV 58
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVV 387
+P +NE F+F +T QL ++L V
Sbjct: 59 DGAASPSFNESFSF-KVTSRQLDTASLSLSV 88
>gnl|CDD|176000 cd04035, C2A_Rabphilin_Doc2, C2 domain first repeat present in
Rabphilin and Double C2 domain. Rabphilin is found
neurons and in neuroendrocrine cells, while Doc2 is
found not only in the brain but in tissues, including
mast cells, chromaffin cells, and osteoblasts.
Rabphilin and Doc2s share highly homologous tandem C2
domains, although their N-terminal structures are
completely different: rabphilin contains an N-terminal
Rab-binding domain (RBD),7 whereas Doc2 contains an
N-terminal Munc13-1-interacting domain (MID). C2 domains
fold into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 123
Score = 97.0 bits (242), Expect = 5e-24
Identities = 40/105 (38%), Positives = 60/105 (57%), Gaps = 4/105 (3%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLP---DKQKVKTRVL 356
LG + F + Y + L T+I+ + L D +G SDPYVK++LLP K++T+ +
Sbjct: 1 LGTLEFTLLYDPANSALHCTIIRAKGLKAMDA-NGLSDPYVKLNLLPGASKATKLRTKTV 59
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGST 401
KTRNP +NE T+ GIT ++ TL +V DR+ D +G T
Sbjct: 60 HKTRNPEFNETLTYYGITEEDIQRKTLRLLVLDEDRFGNDFLGET 104
Score = 78.5 bits (194), Expect = 2e-17
Identities = 33/103 (32%), Positives = 57/103 (55%), Gaps = 2/103 (1%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
G + +L + PA + +++A+ L MD GL+DPYVK+ LL + K +T
Sbjct: 1 LGTLEFTLLYDPANSALHCTIIRAKGLKAMDANGLSDPYVKLNLLPGASKATKLRTKTVH 60
Query: 546 RTLNPVYNESFVFE-VPADNLDSVSLELLLLDWDRVTKNEVIG 587
+T NP +NE+ + + +++ +L LL+LD DR N+ +G
Sbjct: 61 KTRNPEFNETLTYYGITEEDIQRKTLRLLVLDEDRF-GNDFLG 102
>gnl|CDD|175976 cd04009, C2B_Munc13-like, C2 domain second repeat in Munc13
(mammalian uncoordinated)-like proteins. C2-like
domains are thought to be involved in phospholipid
binding in a Ca2+ independent manner in both Unc13 and
Munc13. Caenorabditis elegans Unc13 has a central domain
with sequence similarity to PKC, which includes C1 and
C2-related domains. Unc13 binds phorbol esters and DAG
with high affinity in a phospholipid manner. Mutations
in Unc13 results in abnormal neuronal connections and
impairment in cholinergic neurotransmission in the
nematode. Munc13 is the mammalian homolog which are
expressed in the brain. There are 3 isoforms (Munc13-1,
-2, -3) and are thought to play a role in
neurotransmitter release and are hypothesized to be
high-affinity receptors for phorbol esters. Unc13 and
Munc13 contain both C1 and C2 domains. There are two C2
related domains present, one central and one at the
carboxyl end. Munc13-1 contains a third C2-like domain.
Munc13 interacts with syntaxin, synaptobrevin, and
synaptotagmin suggesting a role for these as scaffolding
proteins. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 133
Score = 96.9 bits (242), Expect = 7e-24
Identities = 43/141 (30%), Positives = 59/141 (41%), Gaps = 24/141 (17%)
Query: 299 KLGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLP-----DKQKVKT 353
G + K Y+ E L V ++ R+L D +GSSDP+VKV LLP D KT
Sbjct: 1 PYGVLTVKAYYRASEQSLRVEILNARNLLPLD-SNGSSDPFVKVELLPRHLFPDVPTPKT 59
Query: 354 RVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYS 413
+V +KT P+++E F F + P Q G+ L F V +D
Sbjct: 60 QVKKKTLFPLFDESFEFN-VPPEQCSVE-----------------GALLLFTVKDYDLLG 101
Query: 414 RDDIVGEVFYSLQSFETYGST 434
+D GE F L T
Sbjct: 102 SNDFEGEAFLPLNDIPGVEDT 122
Score = 82.7 bits (205), Expect = 8e-19
Identities = 34/98 (34%), Positives = 55/98 (56%), Gaps = 4/98 (4%)
Query: 494 CWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLL--YKGQRVAKKKTHVKKRTLNPV 551
++ + + +L ARNL +D G +DP+VKV LL + V KT VKK+TL P+
Sbjct: 10 YYRASEQSLRVEILNARNLLPLDSNGSSDPFVKVELLPRHLFPDVPTPKTQVKKKTLFPL 69
Query: 552 YNESFVFEVPAD--NLDSVSLELLLLDWDRVTKNEVIG 587
++ESF F VP + +++ L + D+D + N+ G
Sbjct: 70 FDESFEFNVPPEQCSVEGALLLFTVKDYDLLGSNDFEG 107
>gnl|CDD|214577 smart00239, C2, Protein kinase C conserved region 2 (CalB).
Ca2+-binding motif present in phospholipases, protein
kinases C, and synaptotagmins (among others). Some do
not appear to contain Ca2+-binding sites. Particular C2s
appear to bind phospholipids, inositol polyphosphates,
and intracellular proteins. Unusual occurrence in
perforin. Synaptotagmin and PLC C2s are permuted in
sequence with respect to N- and C-terminal beta strands.
SMART detects C2 domains using one or both of two
profiles.
Length = 101
Score = 95.6 bits (238), Expect = 1e-23
Identities = 41/89 (46%), Positives = 55/89 (61%), Gaps = 4/89 (4%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
T+ ++ ARNLP D G +DPYVKV L G KKKT V K TLNPV+NE+F FEV
Sbjct: 1 TLTVKIISARNLPPKDKGGKSDPYVKVSLD--GDPKEKKKTKVVKNTLNPVWNETFEFEV 58
Query: 561 PADNLDSVSLELLLLDWDRVTKNEVIGRL 589
P L + +E + D DR +++ IG++
Sbjct: 59 PPPELAELEIE--VYDKDRFGRDDFIGQV 85
Score = 86.4 bits (214), Expect = 2e-20
Identities = 39/89 (43%), Positives = 51/89 (57%), Gaps = 6/89 (6%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPD-KQKVKTRVLRKTRNPIYNEEFTFTGI 373
L V +I R+L KD G SDPYVKV L D K+K KT+V++ T NP++NE F F
Sbjct: 1 TLTVKIISARNLPPKD-KGGKSDPYVKVSLDGDPKEKKKTKVVKNTLNPVWNETFEFEVP 59
Query: 374 TPHQLKGSTLHFVVFSFDRYSRDD-IGST 401
P + + L V+ DR+ RDD IG
Sbjct: 60 PP---ELAELEIEVYDKDRFGRDDFIGQV 85
>gnl|CDD|175973 cd00030, C2, C2 domain. The C2 domain was first identified in PKC.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 102
Score = 94.8 bits (236), Expect = 2e-23
Identities = 42/105 (40%), Positives = 59/105 (56%), Gaps = 8/105 (7%)
Query: 502 FTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ V++ARNLP D+ G +DPYVKV L K K KT V K TLNPV+NE+F F V
Sbjct: 1 LRVTVIEARNLPAKDLNGKSDPYVKVSLGGK----QKFKTKVVKNTLNPVWNETFEFPVL 56
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGR--LDLGGDKSSGTALTHW 604
+ +S +L + + D DR +K++ +G + L SG W
Sbjct: 57 --DPESDTLTVEVWDKDRFSKDDFLGEVEIPLSELLDSGKEGELW 99
Score = 89.0 bits (221), Expect = 2e-21
Identities = 45/111 (40%), Positives = 61/111 (54%), Gaps = 10/111 (9%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L VTVI+ R+L KD +G SDPYVKV L KQK KT+V++ T NP++NE F F + P
Sbjct: 1 LRVTVIEARNLPAKDL-NGKSDPYVKVSLG-GKQKFKTKVVKNTLNPVWNETFEFPVLDP 58
Query: 376 HQLKGSTLHFVVFSFDRYSRDD-IGSTLHFVVFSFDRYSRDDIVGEVFYSL 425
+ TL V+ DR+S+DD +G V GE++ L
Sbjct: 59 ---ESDTLTVEVWDKDRFSKDDFLGE----VEIPLSELLDSGKEGELWLPL 102
>gnl|CDD|176053 cd08408, C2B_Synaptotagmin-14_16, C2 domain second repeat present
in Synaptotagmins 14 and 16. Synaptotagmin 14 and 16
are membrane-trafficking proteins in specific tissues
outside the brain. Both of these contain C-terminal
tandem C2 repeats, but only Synaptotagmin 14 has an
N-terminal transmembrane domain and a putative
fatty-acylation site. Previously all synaptotagmins were
thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium and
this is indeed the case here. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 138
Score = 95.9 bits (239), Expect = 2e-23
Identities = 40/134 (29%), Positives = 69/134 (51%), Gaps = 1/134 (0%)
Query: 488 EILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYK-GQRVAKKKTHVKKR 546
E+LL L + R ++ V+K N + + D YVK+ LL GQ ++K KT +++
Sbjct: 3 ELLLGLEYNALTGRLSVEVIKGSNFKNLAMNKAPDTYVKLTLLNSDGQEISKSKTSIRRG 62
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
+P + E+FVF+V L V+L + + ++ + E+IG LG + S HW +
Sbjct: 63 QPDPEFKETFVFQVALFQLSEVTLMFSVYNKRKMKRKEMIGWFSLGLNSSGEEEEEHWNE 122
Query: 607 VCNSPRRQIAEWLT 620
+ S +Q+ W T
Sbjct: 123 MKESKGQQVCRWHT 136
Score = 38.5 bits (90), Expect = 0.002
Identities = 26/85 (30%), Positives = 37/85 (43%), Gaps = 6/85 (7%)
Query: 309 YQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV----KTRVLRKTRNPIY 364
Y L V VIK + F + + D YVK+ LL + KT + R +P +
Sbjct: 10 YNALTGRLSVEVIKGSN-FKNLAMNKAPDTYVKLTLLNSDGQEISKSKTSIRRGQPDPEF 68
Query: 365 NEEFTFTGITPHQLKGSTLHFVVFS 389
E F F + QL TL F V++
Sbjct: 69 KETFVFQ-VALFQLSEVTLMFSVYN 92
>gnl|CDD|176056 cd08521, C2A_SLP, C2 domain first repeat present in
Synaptotagmin-like proteins. All Slp members basically
share an N-terminal Slp homology domain (SHD) and
C-terminal tandem C2 domains (named the C2A domain and
the C2B domain) with the SHD and C2 domains being
separated by a linker sequence of various length.
Slp1/JFC1 and Slp2/exophilin 4 promote granule docking
to the plasma membrane. Additionally, their C2A domains
are both Ca2+ independent, unlike the case in Slp3 and
Slp4/granuphilin in which their C2A domains are Ca2+
dependent. It is thought that SHD (except for the
Slp4-SHD) functions as a specific Rab27A/B-binding
domain. In addition to Slps, rabphilin, Noc2, and
Munc13-4 also function as Rab27-binding proteins. It has
been demonstrated that Slp3 and Slp4/granuphilin promote
dense-core vesicle exocytosis. Slp5 mRNA has been shown
to be restricted to human placenta and liver suggesting
a role in Rab27A-dependent membrane trafficking in
specific tissues. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first
C2 repeat, C2A, and has a type-I topology.
Length = 123
Score = 94.2 bits (235), Expect = 5e-23
Identities = 40/100 (40%), Positives = 56/100 (56%), Gaps = 4/100 (4%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVLR 357
G+I F + Y K L V + +CR+L D S+PYVKV+LLPDK K KT V +
Sbjct: 1 GEIEFSLSYNYKTGSLEVHIKECRNLAYADEKKKRSNPYVKVYLLPDKSKQSKRKTSVKK 60
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD 397
T NP++NE + I+ QL+ TL V+ DR+ R+
Sbjct: 61 NTTNPVFNETLKYH-ISKSQLETRTLQLSVWHHDRFGRNT 99
Score = 78.1 bits (193), Expect = 2e-17
Identities = 36/106 (33%), Positives = 59/106 (55%), Gaps = 1/106 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVT-GLADPYVKVYLLYKGQRVAKKKTHVKK 545
GEI SL + + + + RNL D ++PYVKVYLL + +K+KT VKK
Sbjct: 1 GEIEFSLSYNYKTGSLEVHIKECRNLAYADEKKKRSNPYVKVYLLPDKSKQSKRKTSVKK 60
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
T NPV+NE+ + + L++ +L+L + DR +N +G +++
Sbjct: 61 NTTNPVFNETLKYHISKSQLETRTLQLSVWHHDRFGRNTFLGEVEI 106
>gnl|CDD|176036 cd08390, C2A_Synaptotagmin-15-17, C2A domain first repeat present
in Synaptotagmins 15 and 17. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. It is thought to be involved in
the trafficking and exocytosis of secretory vesicles in
non-neuronal tissues and is Ca2+ independent. Human
synaptotagmin 15 has 2 alternatively spliced forms that
encode proteins with different C-termini. The larger,
SYT15a, contains a N-terminal TM region, a putative
fatty-acylation site, and 2 tandem C terminal C2
domains. The smaller, SYT15b, lacks the C-terminal
portion of the second C2 domain. Unlike most other
synaptotagmins it is nearly absent in the brain and
rather is found in the heart, lungs, skeletal muscle,
and testis. Synaptotagmin 17 is located in the brain,
kidney, and prostate and is thought to be a peripheral
membrane protein. Previously all synaptotagmins were
thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 123
Score = 93.9 bits (234), Expect = 7e-23
Identities = 42/126 (33%), Positives = 65/126 (51%), Gaps = 21/126 (16%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVK-TRVLRKT 359
G+++F ++Y +E L V++IK R+L + DP+VKV LLPD+++ ++V RKT
Sbjct: 1 GRLWFSVQYDLEEEQLTVSLIKARNLPPRTKDVAHCDPFVKVCLLPDERRSLQSKVKRKT 60
Query: 360 RNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVG 419
+NP ++E F F SF R TL V+ DR+SR I+G
Sbjct: 61 QNPNFDETFVFQ----------------VSFKELQR----RTLRLSVYDVDRFSRHCIIG 100
Query: 420 EVFYSL 425
V + L
Sbjct: 101 HVLFPL 106
Score = 85.4 bits (212), Expect = 7e-20
Identities = 35/103 (33%), Positives = 58/103 (56%), Gaps = 3/103 (2%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVT-GLADPYVKVYLLYKGQRVAKKKTHVKK 545
G + S+ + + T+ ++KARNLP DP+VKV LL +R ++ VK+
Sbjct: 1 GRLWFSVQYDLEEEQLTVSLIKARNLPPRTKDVAHCDPFVKVCLLPDERRS--LQSKVKR 58
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGR 588
+T NP ++E+FVF+V L +L L + D DR +++ +IG
Sbjct: 59 KTQNPNFDETFVFQVSFKELQRRTLRLSVYDVDRFSRHCIIGH 101
>gnl|CDD|175996 cd04030, C2C_KIAA1228, C2 domain third repeat present in
uncharacterized human KIAA1228-like proteins. KIAA
proteins are uncharacterized human proteins. They were
compiled by the Kazusa mammalian cDNA project which
identified more than 2000 human genes. They are
identified by 4 digit codes that precede the KIAA
designation. Many KIAA genes are still functionally
uncharacterized including KIAA1228. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 127
Score = 93.1 bits (232), Expect = 1e-22
Identities = 32/88 (36%), Positives = 51/88 (57%)
Query: 485 GRGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVK 544
G I L++ + + + V K RNLP D + + DPYV++YLL + ++KT VK
Sbjct: 1 PLGRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSDIPDPYVRLYLLPDKSKSTRRKTSVK 60
Query: 545 KRTLNPVYNESFVFEVPADNLDSVSLEL 572
K LNPV++E+F F V + L +L++
Sbjct: 61 KDNLNPVFDETFEFPVSLEELKRRTLDV 88
Score = 81.2 bits (201), Expect = 2e-18
Identities = 38/91 (41%), Positives = 53/91 (58%), Gaps = 5/91 (5%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVL 356
LG+I I+Y + L+VTV KCR+L D S DPYV+++LLPDK K KT V
Sbjct: 2 LGRIQLTIRYSSQRQKLIVTVHKCRNLPPCD-SSDIPDPYVRLYLLPDKSKSTRRKTSVK 60
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVV 387
+ NP+++E F F ++ +LK TL V
Sbjct: 61 KDNLNPVFDETFEFP-VSLEELKRRTLDVAV 90
>gnl|CDD|175987 cd04020, C2B_SLP_1-2-3-4, C2 domain second repeat present in
Synaptotagmin-like proteins 1-4. All Slp members
basically share an N-terminal Slp homology domain (SHD)
and C-terminal tandem C2 domains (named the C2A domain
and the C2B domain) with the SHD and C2 domains being
separated by a linker sequence of various length.
Slp1/JFC1 and Slp2/exophilin 4 promote granule docking
to the plasma membrane. Additionally, their C2A domains
are both Ca2+ independent, unlike the case in Slp3 and
Slp4/granuphilin in which their C2A domains are Ca2+
dependent. It is thought that SHD (except for the
Slp4-SHD) functions as a specific Rab27A/B-binding
domain. In addition to Slps, rabphilin, Noc2, and
Munc13-4 also function as Rab27-binding proteins. It has
been demonstrated that Slp3 and Slp4/granuphilin promote
dense-core vesicle exocytosis. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second
C2 repeat, C2B, and has a type-I topology.
Length = 162
Score = 93.9 bits (234), Expect = 2e-22
Identities = 47/151 (31%), Positives = 79/151 (52%), Gaps = 25/151 (16%)
Query: 486 RGEILLSL-CWQPAANR-----------FTIVVLKARNLPKMDVTGLADPYVKVYLLYKG 533
RGE+ ++L P + + V +A+NLP + G +D +VK YLL
Sbjct: 1 RGELKVALKYVPPESEGALKSKKPSTGELHVWVKEAKNLPALKSGGTSDSFVKCYLLPDK 60
Query: 534 QRVAKKKTHVKKRTLNPVYNESFVFE-VPADNLDSVSLELLLLDWDRVTKNEVIG--RLD 590
+ +K+KT V K+++NPV+N +FV++ V ++L LEL + D D+++ N+ +G RL
Sbjct: 61 SKKSKQKTPVVKKSVNPVWNHTFVYDGVSPEDLSQACLELTVWDHDKLSSNDFLGGVRLG 120
Query: 591 LGGDKSSGTA----------LTHWTDVCNSP 611
LG KS G A + W + ++P
Sbjct: 121 LGTGKSYGQAVDWMDSTGEEILLWQKMLDNP 151
Score = 71.6 bits (176), Expect = 1e-14
Identities = 36/112 (32%), Positives = 57/112 (50%), Gaps = 16/112 (14%)
Query: 301 GQIFFKIKY--QEKEN----------VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDK 348
G++ +KY E E L V V + ++L G+SD +VK +LLPDK
Sbjct: 2 GELKVALKYVPPESEGALKSKKPSTGELHVWVKEAKNLPALK-SGGTSDSFVKCYLLPDK 60
Query: 349 QKV---KTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDD 397
K KT V++K+ NP++N F + G++P L + L V+ D+ S +D
Sbjct: 61 SKKSKQKTPVVKKSVNPVWNHTFVYDGVSPEDLSQACLELTVWDHDKLSSND 112
>gnl|CDD|176033 cd08387, C2A_Synaptotagmin-8, C2A domain first repeat present in
Synaptotagmin 8. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Previously all synaptotagmins
were thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 124
Score = 91.7 bits (228), Expect = 4e-22
Identities = 44/106 (41%), Positives = 66/106 (62%), Gaps = 2/106 (1%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
RGE+ SL + + +++ARNL D +G ADPY KV LL K++ + K
Sbjct: 2 RGELHFSLEYDKDMGILNVKLIQARNLQPRDFSGTADPYCKVRLLPDRSNT--KQSKIHK 59
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
+TLNP ++ESFVFEVP L +LE+LL D+D+ +++E IG ++L
Sbjct: 60 KTLNPEFDESFVFEVPPQELPKRTLEVLLYDFDQFSRDECIGVVEL 105
Score = 88.2 bits (219), Expect = 7e-21
Identities = 37/100 (37%), Positives = 64/100 (64%), Gaps = 3/100 (3%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVK-TRVLRK 358
G++ F ++Y + +L V +I+ R+L +D SG++DPY KV LLPD+ K +++ +K
Sbjct: 2 RGELHFSLEYDKDMGILNVKLIQARNLQPRDF-SGTADPYCKVRLLPDRSNTKQSKIHKK 60
Query: 359 TRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
T NP ++E F F + P +L TL +++ FD++SRD+
Sbjct: 61 TLNPEFDESFVF-EVPPQELPKRTLEVLLYDFDQFSRDEC 99
>gnl|CDD|176005 cd04040, C2D_Tricalbin-like, C2 domain fourth repeat present in
Tricalbin-like proteins. 5 to 6 copies of the C2 domain
are present in Tricalbin, a yeast homolog of
Synaptotagmin, which is involved in membrane trafficking
and sorting. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the fifth C2
repeat, C2E, and has a type-II topology.
Length = 115
Score = 84.2 bits (209), Expect = 1e-19
Identities = 39/92 (42%), Positives = 56/92 (60%), Gaps = 8/92 (8%)
Query: 502 FTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
T+ V+ A NLP D G +DP+VK YL G++V K T K+TLNPV+NESF VP
Sbjct: 1 LTVDVISAENLPSADRNGKSDPFVKFYL--NGEKVFK--TKTIKKTLNPVWNESFEVPVP 56
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGR--LDL 591
+ + +E + DWDR K++++G +DL
Sbjct: 57 SRVRAVLKVE--VYDWDRGGKDDLLGSAYIDL 86
Score = 55.3 bits (134), Expect = 2e-09
Identities = 32/88 (36%), Positives = 49/88 (55%), Gaps = 8/88 (9%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGIT 374
L V VI +L D +G SDP+VK +L + +KV KT+ ++KT NP++NE F +
Sbjct: 1 LTVDVISAENLPSADR-NGKSDPFVKFYL--NGEKVFKTKTIKKTLNPVWNESFE---VP 54
Query: 375 PHQLKGSTLHFVVFSFDRYSRDD-IGST 401
+ L V+ +DR +DD +GS
Sbjct: 55 VPSRVRAVLKVEVYDWDRGGKDDLLGSA 82
>gnl|CDD|175997 cd04031, C2A_RIM1alpha, C2 domain first repeat contained in
Rab3-interacting molecule (RIM) proteins. RIMs are
believed to organize specialized sites of the plasma
membrane called active zones. They also play a role in
controlling neurotransmitter release, plasticity
processes, as well as memory and learning. RIM contains
an N-terminal zinc finger domain, a PDZ domain, and two
C-terminal C2 domains (C2A, C2B). C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-I
topology and do not bind Ca2+.
Length = 125
Score = 82.3 bits (204), Expect = 8e-19
Identities = 37/102 (36%), Positives = 61/102 (59%), Gaps = 1/102 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
G I + L + ++ + VL+AR+LP D L +PYVKVYLL +K++T K+
Sbjct: 3 GRIQIQLWYDKVTSQLIVTVLQARDLPPRDDGSLRNPYVKVYLLPDRSEKSKRRTKTVKK 62
Query: 547 TLNPVYNESFVF-EVPADNLDSVSLELLLLDWDRVTKNEVIG 587
TLNP +N++F + V + L +LE+ + D+DR +N+ +G
Sbjct: 63 TLNPEWNQTFEYSNVRRETLKERTLEVTVWDYDRDGENDFLG 104
Score = 80.8 bits (200), Expect = 3e-18
Identities = 37/101 (36%), Positives = 60/101 (59%), Gaps = 4/101 (3%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPD---KQKVKTRVLR 357
G+I ++ Y + + L+VTV++ RDL +D +PYVKV+LLPD K K +T+ ++
Sbjct: 3 GRIQIQLWYDKVTSQLIVTVLQARDLPPRDD-GSLRNPYVKVYLLPDRSEKSKRRTKTVK 61
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
KT NP +N+ F ++ + LK TL V+ +DR +D
Sbjct: 62 KTLNPEWNQTFEYSNVRRETLKERTLEVTVWDYDRDGENDF 102
>gnl|CDD|175995 cd04029, C2A_SLP-4_5, C2 domain first repeat present in
Synaptotagmin-like proteins 4 and 5. All Slp members
basically share an N-terminal Slp homology domain (SHD)
and C-terminal tandem C2 domains (named the C2A domain
and the C2B domain) with the SHD and C2 domains being
separated by a linker sequence of various length. SHD of
Slp (except for the Slp4-SHD) function as a specific
Rab27A/B-binding domain. In addition to Slp, rabphilin,
Noc2, and Munc13-4 also function as Rab27-binding
proteins. It has been demonstrated that Slp4/granuphilin
promotes dense-core vesicle exocytosis. The C2A domain
of Slp4 is Ca2+ dependent. Slp5 mRNA has been shown to
be restricted to human placenta and liver suggesting a
role in Rab27A-dependent membrane trafficking in
specific tissues. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 125
Score = 80.2 bits (198), Expect = 5e-18
Identities = 46/125 (36%), Positives = 65/125 (52%), Gaps = 7/125 (5%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVLR 357
G+I F + Y K L V V +CR+L D S+PYVK +LLPDK K KT + R
Sbjct: 2 GEILFSLSYDYKTQSLNVHVKECRNLAYGDEAKKRSNPYVKTYLLPDKSRQSKRKTSIKR 61
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDI 417
T NP+YNE ++ I+ QL+ TL V+ +DR+ R+ + L V D ++ D
Sbjct: 62 NTTNPVYNETLKYS-ISHSQLETRTLQLSVWHYDRFGRN---TFLGEVEIPLDSWNFDSQ 117
Query: 418 VGEVF 422
E
Sbjct: 118 HEECL 122
Score = 69.4 bits (170), Expect = 3e-14
Identities = 37/106 (34%), Positives = 60/106 (56%), Gaps = 1/106 (0%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMD-VTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
GEIL SL + + V + RNL D ++PYVK YLL R +K+KT +K+
Sbjct: 2 GEILFSLSYDYKTQSLNVHVKECRNLAYGDEAKKRSNPYVKTYLLPDKSRQSKRKTSIKR 61
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
T NPVYNE+ + + L++ +L+L + +DR +N +G +++
Sbjct: 62 NTTNPVYNETLKYSISHSQLETRTLQLSVWHYDRFGRNTFLGEVEI 107
>gnl|CDD|189476 pfam00261, Tropomyosin, Tropomyosin.
Length = 237
Score = 82.3 bits (204), Expect = 1e-17
Identities = 28/44 (63%), Positives = 37/44 (84%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
A+QR + Y+ +I+ L KLKEAE RAEFAE++V+KL+KEVDRLE
Sbjct: 167 ASQREDSYEEKIRDLTEKLKEAETRAEFAERSVQKLEKEVDRLE 210
Score = 31.5 bits (72), Expect = 1.0
Identities = 14/42 (33%), Positives = 26/42 (61%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ +++ + ++++ KL+EAE RAE AE V L + + LE
Sbjct: 8 EELDKAEERLEEAQEKLEEAEKRAEKAEAEVASLNRRIQLLE 49
>gnl|CDD|176039 cd08393, C2A_SLP-1_2, C2 domain first repeat present in
Synaptotagmin-like proteins 1 and 2. All Slp members
basically share an N-terminal Slp homology domain (SHD)
and C-terminal tandem C2 domains (named the C2A domain
and the C2B domain) with the SHD and C2 domains being
separated by a linker sequence of various length.
Slp1/JFC1 and Slp2/exophilin 4 promote granule docking
to the plasma membrane. Additionally, their C2A domains
are both Ca2+ independent, unlike Slp3 and
Slp4/granuphilin which are Ca2+ dependent. It is
thought that SHD (except for the Slp4-SHD) functions as
a specific Rab27A/B-binding domain. In addition to
Slps, rabphilin, Noc2, and Munc13-4 also function as
Rab27-binding proteins. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 125
Score = 78.2 bits (193), Expect = 3e-17
Identities = 38/99 (38%), Positives = 52/99 (52%), Gaps = 4/99 (4%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVLR 357
G + F + Y K L V VI+C+DL D SDPYVK +LLPDK K KT V +
Sbjct: 2 GSVQFALDYDPKLRELHVHVIQCQDLAAADPKKQRSDPYVKTYLLPDKSNRGKRKTSVKK 61
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRD 396
KT NP++NE + + +L L+ V+ D R+
Sbjct: 62 KTLNPVFNETLRYK-VEREELPTRVLNLSVWHRDSLGRN 99
Score = 77.1 bits (190), Expect = 6e-17
Identities = 34/107 (31%), Positives = 59/107 (55%), Gaps = 1/107 (0%)
Query: 486 RGEILLSLCWQPAANRFTIVVLKARNLPKMDV-TGLADPYVKVYLLYKGQRVAKKKTHVK 544
+G + +L + P + V++ ++L D +DPYVK YLL K+KT VK
Sbjct: 1 QGSVQFALDYDPKLRELHVHVIQCQDLAAADPKKQRSDPYVKTYLLPDKSNRGKRKTSVK 60
Query: 545 KRTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
K+TLNPV+NE+ ++V + L + L L + D + +N +G +++
Sbjct: 61 KKTLNPVFNETLRYKVEREELPTRVLNLSVWHRDSLGRNSFLGEVEV 107
>gnl|CDD|176027 cd08381, C2B_PI3K_class_II, C2 domain second repeat present in
class II phosphatidylinositol 3-kinases (PI3Ks). There
are 3 classes of PI3Ks based on structure, regulation,
and specificity. All classes contain a N-terminal C2
domain, a PIK domain, and a kinase catalytic domain.
Unlike class I and class III, class II PI3Ks have
additionally a PX domain and a C-terminal C2 domain
containing a nuclear localization signal both of which
bind phospholipids though in a slightly different
fashion. PI3Ks (AKA phosphatidylinositol (PtdIns)
3-kinases) regulate cell processes such as cell growth,
differentiation, proliferation, and motility. PI3Ks work
on phosphorylation of phosphatidylinositol,
phosphatidylinositide (4)P (PtdIns (4)P),2 or
PtdIns(4,5)P2. Specifically they phosphorylate the D3
hydroxyl group of phosphoinositol lipids on the inositol
ring. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions. This cd contains the second C2 repeat, C2B, and
has a type-I topology.
Length = 122
Score = 76.9 bits (190), Expect = 7e-17
Identities = 37/121 (30%), Positives = 65/121 (53%), Gaps = 7/121 (5%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLA-DPYVKVYLLYKGQRVAKKKTHVKK 545
G++ LS+ ++ ++V+ A+NLP +D G DPYVK YLL Q+ K+KT V +
Sbjct: 2 GQVKLSISYK--NGTLFVMVMHAKNLPLLD--GSDPDPYVKTYLLPDPQKTTKRKTKVVR 57
Query: 546 RTLNPVYNESFVFE-VPADNLDSVSLELLLLDWDRVTKNEVIGRLDL-GGDKSSGTALTH 603
+T NP +NE V++ +P ++L L++ + D + +NE +G + +
Sbjct: 58 KTRNPTFNEMLVYDGLPVEDLQQRVLQVSVWSHDSLVENEFLGGVCIPLKKLDLSQETEK 117
Query: 604 W 604
W
Sbjct: 118 W 118
Score = 76.6 bits (189), Expect = 8e-17
Identities = 38/96 (39%), Positives = 51/96 (53%), Gaps = 7/96 (7%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV---KTRVLR 357
GQ+ I Y K L V V+ ++L + D DPYVK +LLPD QK KT+V+R
Sbjct: 2 GQVKLSISY--KNGTLFVMVMHAKNLPLLD--GSDPDPYVKTYLLPDPQKTTKRKTKVVR 57
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRY 393
KTRNP +NE + G+ L+ L V+S D
Sbjct: 58 KTRNPTFNEMLVYDGLPVEDLQQRVLQVSVWSHDSL 93
>gnl|CDD|176070 cd08688, C2_KIAA0528-like, C2 domain found in the Human KIAA0528
cDNA clone. The members of this CD are named after the
Human KIAA0528 cDNA clone. All members here contain a
single C2 repeat. No other information on this protein
is currently known. The C2 domain was first identified
in PKC. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions.
Length = 110
Score = 73.5 bits (181), Expect = 7e-16
Identities = 38/108 (35%), Positives = 59/108 (54%), Gaps = 11/108 (10%)
Query: 503 TIVVLKARNLPKMD-VTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYN-ESFVFEV 560
+ V+ AR+LP MD + L D +V+V G K T V K++LNPV+N E F FEV
Sbjct: 2 KVRVVAARDLPVMDRSSDLTDAFVEVKF---GSTTYK--TDVVKKSLNPVWNSEWFRFEV 56
Query: 561 PADNLDSVSLELLLLDWDRVTKNEVIGR--LDLGG--DKSSGTALTHW 604
+ L L++ ++D D + N+ IG+ +DL K S + ++ W
Sbjct: 57 DDEELQDEPLQIRVMDHDTYSANDAIGKVYIDLNPLLLKDSVSQISGW 104
Score = 56.5 bits (137), Expect = 6e-10
Identities = 31/122 (25%), Positives = 47/122 (38%), Gaps = 21/122 (17%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L V V+ RDL + D S +D +V+V KT V++K+ NP++N E
Sbjct: 1 LKVRVVAARDLPVMDRSSDLTDAFVEVKF--GSTTYKTDVVKKSLNPVWNSE-------- 50
Query: 376 HQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGSTL 435
F F+ + L V D YS +D +G+V+ L S
Sbjct: 51 -----------WFRFEVDDEELQDEPLQIRVMDHDTYSANDAIGKVYIDLNPLLLKDSVS 99
Query: 436 HF 437
Sbjct: 100 QI 101
>gnl|CDD|176002 cd04037, C2E_Ferlin, C2 domain fifth repeat in Ferlin. Ferlins are
involved in vesicle fusion events. Ferlins and other
proteins, such as Synaptotagmins, are implicated in
facilitating the fusion process when cell membranes fuse
together. There are six known human Ferlins: Dysferlin
(Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3),
Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can
lead to a wide range of diseases including muscular
dystrophy (dysferlin), deafness (otoferlin), and
infertility (fer-1, fertilization factor-1).
Structurally they have 6 tandem C2 domains, designated
as (C2A-C2F) and a single C-terminal transmembrane
domain, though there is a new study that disputes this
and claims that there are actually 7 tandem C2 domains
with another C2 domain inserted between C2D and C2E.
In a subset of them (Dysferlin, Myoferlin, and Fer1)
there is an additional conserved domain called DysF. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the fifth C2
repeat, C2E, and has a type-II topology.
Length = 124
Score = 72.2 bits (178), Expect = 3e-15
Identities = 25/85 (29%), Positives = 50/85 (58%), Gaps = 9/85 (10%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFE--VPAD 563
V++ARNL D G +DPY+K+ L +++ + ++ TLNPV+ + F E +P +
Sbjct: 6 VVRARNLQPKDPNGKSDPYLKIKLG--KKKINDRDNYIPN-TLNPVFGKMFELEATLPGN 62
Query: 564 NLDSVSLELLLLDWDRVTKNEVIGR 588
++ +S ++D+D + +++IG
Sbjct: 63 SILKIS----VMDYDLLGSDDLIGE 83
Score = 61.4 bits (150), Expect = 2e-11
Identities = 29/88 (32%), Positives = 43/88 (48%), Gaps = 5/88 (5%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGIT 374
++ V V++ R+L KD P+G SDPY+K+ L K + + T NP++ + F
Sbjct: 1 LVRVYVVRARNLQPKD-PNGKSDPYLKIKLGKKKINDRDNYIPNTLNPVFGKMFELEATL 59
Query: 375 PHQLKGSTLHFVVFSFDRYSRDD-IGST 401
P S L V +D DD IG T
Sbjct: 60 PGN---SILKISVMDYDLLGSDDLIGET 84
>gnl|CDD|176003 cd04038, C2_ArfGAP, C2 domain present in Arf GTPase Activating
Proteins (GAP). ArfGAP is a GTPase activating protein
which regulates the ADP ribosylation factor Arf, a
member of the Ras superfamily of GTP-binding proteins.
The GTP-bound form of Arf is involved in Golgi
morphology and is involved in recruiting coat proteins.
ArfGAP is responsible for the GDP-bound form of Arf
which is necessary for uncoating the membrane and
allowing the Golgi to fuse with an acceptor compartment.
These proteins contain an N-terminal ArfGAP domain
containing the characteristic zinc finger motif
(Cys-x2-Cys-x(16,17)-x2-Cys) and C-terminal C2 domain.
C2 domains were first identified in Protein Kinase C
(PKC). C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions.
Length = 145
Score = 71.6 bits (176), Expect = 8e-15
Identities = 37/114 (32%), Positives = 53/114 (46%), Gaps = 27/114 (23%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGIT 374
+L V V++ +L ++D SSDPYV + L QKVKTRV++K NP++NEE T +
Sbjct: 3 LLKVRVVRGTNLAVRDF--TSSDPYVVLTL--GNQKVKTRVIKKNLNPVWNEELTLSVPN 58
Query: 375 PHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSF 428
P L VF D +S+DD +GE L+
Sbjct: 59 PMAP-----------------------LKLEVFDKDTFSKDDSMGEAEIDLEPL 89
Score = 50.4 bits (121), Expect = 2e-07
Identities = 30/84 (35%), Positives = 44/84 (52%), Gaps = 9/84 (10%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPAD 563
+ V++ NL D T +DPYV + L G + K KT V K+ LNPV+NE VP
Sbjct: 6 VRVVRGTNLAVRDFTS-SDPYVVLTL---GNQ--KVKTRVIKKNLNPVWNEELTLSVPNP 59
Query: 564 NLDSVSLELLLLDWDRVTKNEVIG 587
L+L + D D +K++ +G
Sbjct: 60 MA---PLKLEVFDKDTFSKDDSMG 80
Score = 28.8 bits (65), Expect = 5.2
Identities = 10/27 (37%), Positives = 14/27 (51%)
Query: 435 LHFVVFSFDRYSRDDIVGEVFYSLQSF 461
L VF D +S+DD +GE L+
Sbjct: 63 LKLEVFDKDTFSKDDSMGEAEIDLEPL 89
>gnl|CDD|176038 cd08392, C2A_SLP-3, C2 domain first repeat present in
Synaptotagmin-like protein 3. All Slp members basically
share an N-terminal Slp homology domain (SHD) and
C-terminal tandem C2 domains (named the C2A domain and
the C2B domain) with the SHD and C2 domains being
separated by a linker sequence of various length. SHD of
Slp (except for the Slp4-SHD) function as a specific
Rab27A/B-binding domain. In addition to Slp, rabphilin,
Noc2, and Munc13-4 also function as Rab27-binding
proteins. Little is known about the expression or
localization of Slp3. The C2A domain of Slp3 is Ca2+
dependent. It has been demonstrated that Slp3 promotes
dense-core vesicle exocytosis. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 128
Score = 68.3 bits (167), Expect = 6e-14
Identities = 32/91 (35%), Positives = 45/91 (49%), Gaps = 4/91 (4%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVLR 357
G+I F + Y + + L +T+ CR+L D PYVKV LLPDK K KT V +
Sbjct: 2 GEIEFALHYNFRTSCLEITIKACRNLAYGDEKKKKCHPYVKVCLLPDKSHNSKRKTAVKK 61
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVF 388
T NP++NE + + L L V+
Sbjct: 62 GTVNPVFNETLKYV-VEADLLSSRQLQVSVW 91
Score = 53.7 bits (129), Expect = 1e-08
Identities = 34/87 (39%), Positives = 46/87 (52%), Gaps = 1/87 (1%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTG-LADPYVKVYLLYKGQRVAKKKTHVKK 545
GEI +L + + I + RNL D PYVKV LL +K+KT VKK
Sbjct: 2 GEIEFALHYNFRTSCLEITIKACRNLAYGDEKKKKCHPYVKVCLLPDKSHNSKRKTAVKK 61
Query: 546 RTLNPVYNESFVFEVPADNLDSVSLEL 572
T+NPV+NE+ + V AD L S L++
Sbjct: 62 GTVNPVFNETLKYVVEADLLSSRQLQV 88
>gnl|CDD|176006 cd04041, C2A_fungal, C2 domain first repeat; fungal group. C2
domains were first identified in Protein Kinase C (PKC).
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 111
Score = 67.3 bits (165), Expect = 1e-13
Identities = 35/114 (30%), Positives = 53/114 (46%), Gaps = 20/114 (17%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGI 373
VLVVT+ + DL D +GSSDPYV + + TR++RK NP++ E F +
Sbjct: 2 VLVVTIHRATDLPKADFGTGSSDPYVTASFAKFGKPLYSTRIIRKDLNPVWEET-WFVLV 60
Query: 374 TPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQS 427
TP ++K G L ++ DR++ DD +G V L+
Sbjct: 61 TPDEVK------------------AGERLSCRLWDSDRFTADDRLGRVEIDLKE 96
Score = 48.4 bits (116), Expect = 4e-07
Identities = 32/100 (32%), Positives = 47/100 (47%), Gaps = 18/100 (18%)
Query: 501 RFTIVVLKARNLPKMD-VTGLADPYVKV------YLLYKGQRVAKKKTHVKKRTLNPVYN 553
TI +A +LPK D TG +DPYV LY T + ++ LNPV+
Sbjct: 4 VVTIH--RATDLPKADFGTGSSDPYVTASFAKFGKPLYS--------TRIIRKDLNPVWE 53
Query: 554 ES-FVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLG 592
E+ FV P + L L D DR T ++ +GR+++
Sbjct: 54 ETWFVLVTPDEVKAGERLSCRLWDSDRFTADDRLGRVEID 93
>gnl|CDD|176035 cd08389, C2A_Synaptotagmin-14_16, C2A domain first repeat present
in Synaptotagmins 14 and 16. Synaptotagmin 14 and 16
are membrane-trafficking proteins in specific tissues
outside the brain. Both of these contain C-terminal
tandem C2 repeats, but only Synaptotagmin 14 has an
N-terminal transmembrane domain and a putative
fatty-acylation site. Previously all synaptotagmins were
thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium and
this is indeed the case here. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 124
Score = 63.8 bits (156), Expect = 2e-12
Identities = 34/99 (34%), Positives = 55/99 (55%), Gaps = 3/99 (3%)
Query: 299 KLGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDK-QKVKTRVLR 357
K G + +Y L VTVI+ +D+ KD G+S V + LLP K Q+ KT+V +
Sbjct: 1 KCGDLDVAFEYDPSARKLTVTVIRAQDIPTKDR-GGASSWQVHLVLLPSKKQRAKTKV-Q 58
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRD 396
+ NP++NE FTF+ + P +L L F ++ +R ++
Sbjct: 59 RGPNPVFNETFTFSRVEPEELNNMALRFRLYGVERMRKE 97
Score = 57.3 bits (139), Expect = 5e-10
Identities = 36/117 (30%), Positives = 66/117 (56%), Gaps = 13/117 (11%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLL-YKGQRVAKKKTHVKK 545
G++ ++ + P+A + T+ V++A+++P D G + V + LL K QR KT V++
Sbjct: 3 GDLDVAFEYDPSARKLTVTVIRAQDIPTKDRGGASSWQVHLVLLPSKKQR---AKTKVQR 59
Query: 546 RTLNPVYNESFVF-EVPADNLDSVSLELLLLDWDRVTKNEVIG-------RLDLGGD 594
NPV+NE+F F V + L++++L L +R+ K +IG +L+L G+
Sbjct: 60 GP-NPVFNETFTFSRVEPEELNNMALRFRLYGVERMRKERLIGEKVVPLSQLNLEGE 115
>gnl|CDD|176022 cd08376, C2B_MCTP_PRT, C2 domain second repeat found in Multiple C2
domain and Transmembrane region Proteins (MCTP). MCTPs
are involved in Ca2+ signaling at the membrane. MCTP is
composed of a variable N-terminal sequence, three C2
domains, two transmembrane regions (TMRs), and a short
C-terminal sequence. It is one of four protein classes
that are anchored to membranes via a transmembrane
region; the others being synaptotagmins, extended
synaptotagmins, and ferlins. MCTPs are the only
membrane-bound C2 domain proteins that contain two
functional TMRs. MCTPs are unique in that they bind Ca2+
but not phospholipids. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 116
Score = 63.8 bits (156), Expect = 2e-12
Identities = 39/91 (42%), Positives = 52/91 (57%), Gaps = 9/91 (9%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPA 562
TIV+++ +NLP MD GL+DPYVK L G K K+ V +TLNP + E F +
Sbjct: 3 TIVLVEGKNLPPMDDNGLSDPYVKFRL---GNE--KYKSKVCSKTLNPQWLEQFDLHLFD 57
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIGR--LDL 591
D S LE+ + D D K+E IGR +DL
Sbjct: 58 DQ--SQILEIEVWDKDTGKKDEFIGRCEIDL 86
Score = 51.9 bits (125), Expect = 3e-08
Identities = 27/105 (25%), Positives = 44/105 (41%), Gaps = 25/105 (23%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGIT 374
V+ + +++ ++L +G SDPYVK L +K K++V KT NP + E+F
Sbjct: 1 VVTIVLVEGKNL-PPMDDNGLSDPYVKFRL--GNEKYKSKVCSKTLNPQWLEQFDL---- 53
Query: 375 PHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVG 419
H DD L V+ D +D+ +G
Sbjct: 54 -HLF-----------------DDQSQILEIEVWDKDTGKKDEFIG 80
>gnl|CDD|227371 COG5038, COG5038, Ca2+-dependent lipid-binding protein, contains C2
domain [General function prediction only].
Length = 1227
Score = 69.0 bits (169), Expect = 5e-12
Identities = 33/85 (38%), Positives = 46/85 (54%), Gaps = 6/85 (7%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPA 562
TI++ NLP D G +DP+VK L + V K K K+TLNPV+NE F EV
Sbjct: 1043 TIMLRSGENLPSSDENGYSDPFVK--LFLNEKSVYKTKVV--KKTLNPVWNEEFTIEVLN 1098
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIG 587
D + + + DWD KN+++G
Sbjct: 1099 RVKDVL--TINVNDWDSGEKNDLLG 1121
Score = 54.0 bits (130), Expect = 2e-07
Identities = 36/165 (21%), Positives = 60/165 (36%), Gaps = 41/165 (24%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKT 359
+G + KIK E T+ +G+ DPY+ V D+ KTRV + T
Sbjct: 435 IGVVEVKIKSAEGLKKSDSTI------------NGTVDPYITVTF-SDRVIGKTRVKKNT 481
Query: 360 RNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVG 419
NP++NE T + ++ SF L+ ++ F+ + D +VG
Sbjct: 482 LNPVWNE---------------TFYILLNSFT--------DPLNLSLYDFNSFKSDKVVG 518
Query: 420 EVFYSLQSFETYGSTLH-FVVFSFDRYSRDDIVGEVFYSLQSFET 463
L + F + + VG + Y L+ F
Sbjct: 519 STQLDLALLHQNPVKKNELYEFLRNTKN----VGRLTYDLRFFPV 559
Score = 48.6 bits (116), Expect = 1e-05
Identities = 29/91 (31%), Positives = 44/91 (48%), Gaps = 9/91 (9%)
Query: 504 IVVLKARNLPKMD--VTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ + A L K D + G DPY+ V + KT VKK TLNPV+NE+F +
Sbjct: 440 VKIKSAEGLKKSDSTINGTVDPYITVTFSDRV----IGKTRVKKNTLNPVWNETFY--IL 493
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGRLDLG 592
++ L L L D++ ++V+G L
Sbjct: 494 LNSFTD-PLNLSLYDFNSFKSDKVVGSTQLD 523
Score = 39.7 bits (93), Expect = 0.004
Identities = 31/125 (24%), Positives = 53/125 (42%), Gaps = 24/125 (19%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L + + +L D +G SDP+VK+ L +K KT+V++KT NP++NEEFT
Sbjct: 1042 LTIMLRSGENLPSSDE-NGYSDPFVKL-FLNEKSVYKTKVVKKTLNPVWNEEFTI----- 1094
Query: 376 HQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGSTL 435
++ + V +D ++D++G L E G+T
Sbjct: 1095 -EVLNRVKDVLT----------------INVNDWDSGEKNDLLGTAEIDLSKLEPGGTTN 1137
Query: 436 HFVVF 440
+
Sbjct: 1138 SNIPL 1142
Score = 34.7 bits (80), Expect = 0.19
Identities = 46/247 (18%), Positives = 76/247 (30%), Gaps = 62/247 (25%)
Query: 311 EKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTF 370
+L VT+ + + L D S D K+ T L+ T +P +N ++
Sbjct: 576 SNTGILKVTLREVKAL---DELSSKKDNKSAELYTNAKEVYSTGKLKFTNHPSWNLQYN- 631
Query: 371 TGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSF-- 428
+T K S++ V F G ++ +L
Sbjct: 632 VLVT--DRKNSSIKVVTFD------VQSG----------------KVIATEGSTLPDLID 667
Query: 429 ETYGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGHSLSFCRDIQPRNLRIKSQGRGE 488
T + L F + R + I ++ G S S
Sbjct: 668 RTLDTFLVFPL----RNPKGRIFITNYWK--PIYNAGGSSSK------------------ 703
Query: 489 ILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTL 548
A R ++ KA +L G +DPY V + + K +T TL
Sbjct: 704 --TVYDTPIGAIRVSVR--KANDLRNEIPGGKSDPYATVLV----NNLVKYRTIYGSSTL 755
Query: 549 NPVYNES 555
NP++NE
Sbjct: 756 NPIWNEI 762
>gnl|CDD|175999 cd04033, C2_NEDD4_NEDD4L, C2 domain present in the Human neural
precursor cell-expressed, developmentally down-regulated
4 (NEDD4) and NEDD4-like (NEDD4L/NEDD42). Nedd4 and
Nedd4-2 are two of the nine members of the Human Nedd4
family. All vertebrates appear to have both Nedd4 and
Nedd4-2 genes. They are thought to participate in the
regulation of epithelial Na+ channel (ENaC) activity.
They also have identical specificity for ubiquitin
conjugating enzymes (E2). Nedd4 and Nedd4-2 are
composed of a C2 domain, 2-4 WW domains, and a ubiquitin
ligase Hect domain. Their WW domains can bind PPxY (PY)
or LPSY motifs, and in vitro studies suggest that WW3
and WW4 of both proteins bind PY motifs in the key
substrates, with WW3 generally exhibiting higher
affinity. Most Nedd4 family members, especially Nedd4-2,
also have multiple splice variants, which might play
different roles in regulating their substrates. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 133
Score = 62.4 bits (152), Expect = 8e-12
Identities = 30/92 (32%), Positives = 52/92 (56%), Gaps = 9/92 (9%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQR---VAKKKTHVKKRTLNPVYNESFVFEV 560
+ VL +L K D+ G +DPYVK+ L Y + +T K+TLNP +NE F F V
Sbjct: 4 VKVLAGIDLAKKDIFGASDPYVKISL-YDPDGNGEIDSVQTKTIKKTLNPKWNEEFFFRV 62
Query: 561 -PADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
P ++ L + D +R+T+++ +G++++
Sbjct: 63 NPREH----RLLFEVFDENRLTRDDFLGQVEV 90
Score = 55.1 bits (133), Expect = 4e-09
Identities = 36/90 (40%), Positives = 50/90 (55%), Gaps = 14/90 (15%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHL-----LPDKQKVKTRVLRKTRNPIYNEEFT 369
+L V V+ DL KD G+SDPYVK+ L + V+T+ ++KT NP +NEEF
Sbjct: 1 ILRVKVLAGIDLAKKDI-FGASDPYVKISLYDPDGNGEIDSVQTKTIKKTLNPKWNEEFF 59
Query: 370 FTGITP--HQLKGSTLHFVVFSFDRYSRDD 397
F + P H+L F VF +R +RDD
Sbjct: 60 FR-VNPREHRLL-----FEVFDENRLTRDD 83
>gnl|CDD|175994 cd04028, C2B_RIM1alpha, C2 domain second repeat contained in
Rab3-interacting molecule (RIM) proteins. RIMs are
believed to organize specialized sites of the plasma
membrane called active zones. They also play a role in
controlling neurotransmitter release, plasticity
processes, as well as memory and learning. RIM contains
an N-terminal zinc finger domain, a PDZ domain, and two
C-terminal C2 domains (C2A, C2B). C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-I
topology and do not bind Ca2+.
Length = 146
Score = 62.8 bits (153), Expect = 9e-12
Identities = 30/75 (40%), Positives = 44/75 (58%), Gaps = 3/75 (4%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNL-PKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKK 545
G+I L L + + V++AR L K L PYVKVYLL + +AKKKT + +
Sbjct: 18 GDIQLGLYDKKGQ--LEVEVIRARGLVQKPGSKVLPAPYVKVYLLEGKKCIAKKKTKIAR 75
Query: 546 RTLNPVYNESFVFEV 560
+TL+P+Y + VF+V
Sbjct: 76 KTLDPLYQQQLVFDV 90
Score = 54.7 bits (132), Expect = 5e-09
Identities = 31/91 (34%), Positives = 46/91 (50%), Gaps = 9/91 (9%)
Query: 300 LGQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVL 356
+G I ++ +K+ L V VI+ R L K PYVKV+LL K+ K KT++
Sbjct: 17 MGDI--QLGLYDKKGQLEVEVIRARGLVQKPGSKVLPAPYVKVYLLEGKKCIAKKKTKIA 74
Query: 357 RKTRNPIYNEEFTFTGITPHQLKGSTLHFVV 387
RKT +P+Y ++ F G TL +V
Sbjct: 75 RKTLDPLYQQQLVF----DVSPTGKTLQVIV 101
>gnl|CDD|176008 cd04043, C2_Munc13_fungal, C2 domain in Munc13 (mammalian
uncoordinated) proteins; fungal group. C2-like domains
are thought to be involved in phospholipid binding in a
Ca2+ independent manner in both Unc13 and Munc13.
Caenorabditis elegans Unc13 has a central domain with
sequence similarity to PKC, which includes C1 and
C2-related domains. Unc13 binds phorbol esters and DAG
with high affinity in a phospholipid manner. Mutations
in Unc13 results in abnormal neuronal connections and
impairment in cholinergic neurotransmission in the
nematode. Munc13 is the mammalian homolog which are
expressed in the brain. There are 3 isoforms (Munc13-1,
-2, -3) and are thought to play a role in
neurotransmitter release and are hypothesized to be
high-affinity receptors for phorbol esters. Unc13 and
Munc13 contain both C1 and C2 domains. There are two C2
related domains present, one central and one at the
carboxyl end. Munc13-1 contains a third C2-like domain.
Munc13 interacts with syntaxin, synaptobrevin, and
synaptotagmin suggesting a role for these as scaffolding
proteins. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 126
Score = 62.3 bits (152), Expect = 9e-12
Identities = 31/87 (35%), Positives = 47/87 (54%), Gaps = 4/87 (4%)
Query: 502 FTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
FTI +++A NL GL+DPYV + +R+AK +T TLNP ++E F EVP
Sbjct: 3 FTIRIVRAENLKADSSNGLSDPYVTLVDTNGKRRIAKTRT--IYDTLNPRWDEEFELEVP 60
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGR 588
A + + + D V K+++ GR
Sbjct: 61 AGE--PLWISATVWDRSFVGKHDLCGR 85
Score = 34.5 bits (80), Expect = 0.042
Identities = 18/45 (40%), Positives = 24/45 (53%), Gaps = 5/45 (11%)
Query: 330 DTPSGSSDPYVKVHLLPDKQKV---KTRVLRKTRNPIYNEEFTFT 371
D+ +G SDPYV L+ K KTR + T NP ++EEF
Sbjct: 16 DSSNGLSDPYVT--LVDTNGKRRIAKTRTIYDTLNPRWDEEFELE 58
>gnl|CDD|175991 cd04025, C2B_RasA1_RasA4, C2 domain second repeat present in RasA1
and RasA4. RasA1 and RasA4 are GAP1s (GTPase activating
protein 1s ), Ras-specific GAP members, which suppresses
Ras function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. Both proteins contain two C2
domains, a Ras-GAP domain, a plextrin homology
(PH)-like domain, and a Bruton's Tyrosine Kinase (BTK)
zinc binding domain. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 123
Score = 61.7 bits (150), Expect = 1e-11
Identities = 32/84 (38%), Positives = 51/84 (60%), Gaps = 7/84 (8%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNL 565
VL+AR+L D G +DP+V+V+ Y GQ +T V K++ P +NE F FE+
Sbjct: 6 VLEARDLAPKDRNGTSDPFVRVF--YNGQ---TLETSVVKKSCYPRWNEVFEFELMEGAD 60
Query: 566 DSVSLELLLLDWDRVTKNEVIGRL 589
+S+E + DWD V+KN+ +G++
Sbjct: 61 SPLSVE--VWDWDLVSKNDFLGKV 82
Score = 42.9 bits (101), Expect = 5e-05
Identities = 33/111 (29%), Positives = 56/111 (50%), Gaps = 25/111 (22%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L V++ RDL KD +G+SDP+V+V + Q ++T V++K+ P +NE
Sbjct: 2 LRCHVLEARDLAPKDR-NGTSDPFVRVFY--NGQTLETSVVKKSCYPRWNE--------- 49
Query: 376 HQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQ 426
VF F+ + S L V+ +D S++D +G+V +S+Q
Sbjct: 50 -----------VFEFEL--MEGADSPLSVEVWDWDLVSKNDFLGKVVFSIQ 87
>gnl|CDD|175984 cd04017, C2D_Ferlin, C2 domain fourth repeat in Ferlin. Ferlins
are involved in vesicle fusion events. Ferlins and
other proteins, such as Synaptotagmins, are implicated
in facilitating the fusion process when cell membranes
fuse together. There are six known human Ferlins:
Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin
(Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these
genes can lead to a wide range of diseases including
muscular dystrophy (dysferlin), deafness (otoferlin),
and infertility (fer-1, fertilization factor-1).
Structurally they have 6 tandem C2 domains, designated
as (C2A-C2F) and a single C-terminal transmembrane
domain, though there is a new study that disputes this
and claims that there are actually 7 tandem C2 domains
with another C2 domain inserted between C2D and C2E.
In a subset of them (Dysferlin, Myoferlin, and Fer1)
there is an additional conserved domain called DysF. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the fourth C2
repeat, C2D, and has a type-II topology.
Length = 135
Score = 60.6 bits (148), Expect = 4e-11
Identities = 31/89 (34%), Positives = 48/89 (53%), Gaps = 16/89 (17%)
Query: 509 ARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVF---EVP---- 561
AR+L D +GL+DP+ +V L + Q +T V K TL+P ++++ +F E+
Sbjct: 10 ARDLLAADKSGLSDPFARVSFLNQSQ-----ETEVIKETLSPTWDQTLIFDEVELYGSPE 64
Query: 562 --ADNLDSVSLELLLLDWDRVTKNEVIGR 588
A N V +E L D D V K+E +GR
Sbjct: 65 EIAQNPPLVVVE--LFDQDSVGKDEFLGR 91
Score = 44.8 bits (107), Expect = 1e-05
Identities = 24/86 (27%), Positives = 43/86 (50%), Gaps = 10/86 (11%)
Query: 324 RDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGIT----PHQLK 379
RDL D SG SDP+ +V L Q +T V+++T +P +++ F + P ++
Sbjct: 11 RDLLAADK-SGLSDPFARVSFL--NQSQETEVIKETLSPTWDQTLIFDEVELYGSPEEIA 67
Query: 380 GSTLHFVV--FSFDRYSRDD-IGSTL 402
+ VV F D +D+ +G ++
Sbjct: 68 QNPPLVVVELFDQDSVGKDEFLGRSV 93
>gnl|CDD|176057 cd08675, C2B_RasGAP, C2 domain second repeat of Ras GTPase
activating proteins (GAPs). RasGAPs suppress Ras
function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. The proteins here all contain two
tandem C2 domains, a Ras-GAP domain, and a pleckstrin
homology (PH)-like domain. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-I
topology.
Length = 137
Score = 60.5 bits (147), Expect = 5e-11
Identities = 39/120 (32%), Positives = 55/120 (45%), Gaps = 11/120 (9%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLL-PDKQKVK-TRVLRKTRNPIYNEEFTFTGI 373
L V V++CRDL +K +G+ DP+ +V L K K T+V +KT NP ++E F F
Sbjct: 1 LSVRVLECRDLALKS--NGTCDPFARVTLNYSSKTDTKRTKVKKKTNNPRFDEAFYFELT 58
Query: 374 TPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGS 433
+ SF D S L ++ S DD +GEV LQ + GS
Sbjct: 59 IGFSYE-------KKSFKVEEEDLEKSELRVELWHASMVSGDDFLGEVRIPLQGLQQAGS 111
Score = 51.6 bits (124), Expect = 6e-08
Identities = 27/99 (27%), Positives = 46/99 (46%), Gaps = 15/99 (15%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPA 562
++ VL+ R+L G DP+ +V L Y + K+ T VKK+T NP ++E+F FE+
Sbjct: 2 SVRVLECRDLALK-SNGTCDPFARVTLNYSSKTDTKR-TKVKKKTNNPRFDEAFYFELTI 59
Query: 563 DN-------------LDSVSLELLLLDWDRVTKNEVIGR 588
L+ L + L V+ ++ +G
Sbjct: 60 GFSYEKKSFKVEEEDLEKSELRVELWHASMVSGDDFLGE 98
>gnl|CDD|175978 cd04011, C2B_Ferlin, C2 domain second repeat in Ferlin. Ferlins
are involved in vesicle fusion events. Ferlins and
other proteins, such as Synaptotagmins, are implicated
in facilitating the fusion process when cell membranes
fuse together. There are six known human Ferlins:
Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin
(Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these
genes can lead to a wide range of diseases including
muscular dystrophy (dysferlin), deafness (otoferlin),
and infertility (fer-1, fertilization factor-1).
Structurally they have 6 tandem C2 domains, designated
as (C2A-C2F) and a single C-terminal transmembrane
domain, though there is a new study that disputes this
and claims that there are actually 7 tandem C2 domains
with another C2 domain inserted between C2D and C2E.
In a subset of them (Dysferlin, Myoferlin, and Fer1)
there is an additional conserved domain called DysF. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 111
Score = 57.6 bits (140), Expect = 3e-10
Identities = 33/93 (35%), Positives = 46/93 (49%), Gaps = 13/93 (13%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV--P 561
+ V++AR L G DP VKV + GQ KK T VKK T P YNE F F
Sbjct: 8 VRVIEARQLV----GGNIDPVVKVEVG--GQ---KKYTSVKKGTNCPFYNEYFFFNFHES 58
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIG--RLDLG 592
D L +++ + D + + +IG +LD+G
Sbjct: 59 PDELFDKIIKISVYDSRSLRSDTLIGSFKLDVG 91
Score = 50.7 bits (122), Expect = 7e-08
Identities = 30/95 (31%), Positives = 39/95 (41%), Gaps = 15/95 (15%)
Query: 318 VTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFT-GITPH 376
V VI+ R L G+ DP VKV + K+ T V + T P YNE F F +P
Sbjct: 8 VRVIEARQL-----VGGNIDPVVKVEVGGQKKY--TSVKKGTNCPFYNEYFFFNFHESPD 60
Query: 377 QLKGSTLHFVVFSFDRYSRDD-IGSTLHFVVFSFD 410
+L + V+ D IGS F D
Sbjct: 61 ELFDKIIKISVYDSRSLRSDTLIGS------FKLD 89
>gnl|CDD|176037 cd08391, C2A_C2C_Synaptotagmin_like, C2 domain first and third
repeat in Synaptotagmin-like proteins. Synaptotagmin is
a membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Previously all synaptotagmins
were thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains either the
first or third repeat in Synaptotagmin-like proteins
with a type-I topology.
Length = 121
Score = 57.7 bits (140), Expect = 3e-10
Identities = 34/96 (35%), Positives = 49/96 (51%), Gaps = 18/96 (18%)
Query: 504 IVVLKARNLPKMD------VTGLADPYVKVYLLYKGQRVAKK--KTHVKKRTLNPVYNES 555
I V++A++L D V G +DPYV V RV + K+ V K LNP +NE
Sbjct: 5 IHVIEAQDLVAKDKFVGGLVKGKSDPYVIV-------RVGAQTFKSKVIKENLNPKWNE- 56
Query: 556 FVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
V+E D + LE+ L D D K++ +GRL +
Sbjct: 57 -VYEAVVDEVPGQELEIELFDED-PDKDDFLGRLSI 90
Score = 50.8 bits (122), Expect = 7e-08
Identities = 28/92 (30%), Positives = 44/92 (47%), Gaps = 10/92 (10%)
Query: 315 VLVVTVIKCRDLFIKDT-----PSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFT 369
VL + VI+ +DL KD G SDPYV V + Q K++V+++ NP +NE
Sbjct: 2 VLRIHVIEAQDLVAKDKFVGGLVKGKSDPYVIVRVGA--QTFKSKVIKENLNPKWNE--V 57
Query: 370 FTGITPHQLKGSTLHFVVFSFDRYSRDDIGST 401
+ + ++ G L +F D D +G
Sbjct: 58 YEAVV-DEVPGQELEIELFDEDPDKDDFLGRL 88
>gnl|CDD|175985 cd04018, C2C_Ferlin, C2 domain third repeat in Ferlin. Ferlins are
involved in vesicle fusion events. Ferlins and other
proteins, such as Synaptotagmins, are implicated in
facilitating the fusion process when cell membranes fuse
together. There are six known human Ferlins: Dysferlin
(Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3),
Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can
lead to a wide range of diseases including muscular
dystrophy (dysferlin), deafness (otoferlin), and
infertility (fer-1, fertilization factor-1).
Structurally they have 6 tandem C2 domains, designated
as (C2A-C2F) and a single C-terminal transmembrane
domain, though there is a new study that disputes this
and claims that there are actually 7 tandem C2 domains
with another C2 domain inserted between C2D and C2E.
In a subset of them (Dysferlin, Myoferlin, and Fer1)
there is an additional conserved domain called DysF. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 151
Score = 57.3 bits (139), Expect = 7e-10
Identities = 39/116 (33%), Positives = 58/116 (50%), Gaps = 26/116 (22%)
Query: 501 RFTIVVLKARNLPKMD--------------VTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
RF + +A +LP+MD L DPYV+V + GQ+V KT VKK
Sbjct: 1 RFIFKIYRAEDLPQMDSGIMANVKKAFLGEKKELVDPYVEVS--FAGQKV---KTSVKKN 55
Query: 547 TLNPVYNESFVFEVPADNLDSV--SLELLLLDWDRVTKNEVIGR--LDLGGDKSSG 598
+ NP +NE VF + + +++ + DWDRV ++VIG +DL +SG
Sbjct: 56 SYNPEWNEQIVF---PEMFPPLCERIKIQIRDWDRVGNDDVIGTHFIDLSKISNSG 108
Score = 39.5 bits (93), Expect = 0.001
Identities = 16/35 (45%), Positives = 21/35 (60%), Gaps = 2/35 (5%)
Query: 337 DPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFT 371
DPYV+V QKVKT V + + NP +NE+ F
Sbjct: 36 DPYVEVSFA--GQKVKTSVKKNSYNPEWNEQIVFP 68
>gnl|CDD|176004 cd04039, C2_PSD, C2 domain present in Phosphatidylserine
decarboxylase (PSD). PSD is involved in the
biosynthesis of aminophospholipid by converting
phosphatidylserine (PtdSer) to phosphatidylethanolamine
(PtdEtn). There is a single C2 domain present and it is
thought to confer PtdSer binding motif that is common to
PKC and synaptotagmin. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 108
Score = 55.7 bits (135), Expect = 1e-09
Identities = 27/90 (30%), Positives = 45/90 (50%), Gaps = 10/90 (11%)
Query: 506 VLKARNLP---KMDVTGLA-DPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ +LP M TG DP+V + G+RV + T ++ TLNPV+NE FEV
Sbjct: 7 IKSITDLPPLKNMTRTGFDMDPFVIISF---GRRVFR--TSWRRHTLNPVFNERLAFEV- 60
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
+ + ++ +LD D+ + N+ + L
Sbjct: 61 YPHEKNFDIQFKVLDKDKFSFNDYVATGSL 90
Score = 41.5 bits (98), Expect = 1e-04
Identities = 24/93 (25%), Positives = 39/93 (41%), Gaps = 25/93 (26%)
Query: 337 DPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSR 395
DP+V + ++V +T R T NP++NE F + PH+ +FD
Sbjct: 27 DPFVIISF---GRRVFRTSWRRHTLNPVFNERLAFE-VYPHEK----------NFD---- 68
Query: 396 DDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSF 428
+ F V D++S +D V S+Q
Sbjct: 69 ------IQFKVLDKDKFSFNDYVATGSLSVQEL 95
>gnl|CDD|176007 cd04042, C2A_MCTP_PRT, C2 domain first repeat found in Multiple C2
domain and Transmembrane region Proteins (MCTP). MCTPs
are involved in Ca2+ signaling at the membrane. MCTP is
composed of a variable N-terminal sequence, three C2
domains, two transmembrane regions (TMRs), and a short
C-terminal sequence. It is one of four protein classes
that are anchored to membranes via a transmembrane
region; the others being synaptotagmins, extended
synaptotagmins, and ferlins. MCTPs are the only
membrane-bound C2 domain proteins that contain two
functional TMRs. MCTPs are unique in that they bind Ca2+
but not phospholipids. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-II topology.
Length = 121
Score = 55.7 bits (135), Expect = 1e-09
Identities = 32/119 (26%), Positives = 52/119 (43%), Gaps = 25/119 (21%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L + + + R+L +D G+SDPYVK K K++ + K NP+++E+FT
Sbjct: 2 LDIHLKEGRNLAARDR-GGTSDPYVKFKY-GGKTVYKSKTIYKNLNPVWDEKFTL----- 54
Query: 376 HQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGST 434
+ +D+ L+ VF +DR DD +G F L + E T
Sbjct: 55 ---------PI---------EDVTQPLYIKVFDYDRGLTDDFMGSAFVDLSTLELNKPT 95
Score = 49.2 bits (118), Expect = 3e-07
Identities = 33/92 (35%), Positives = 47/92 (51%), Gaps = 14/92 (15%)
Query: 505 VVLK-ARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPAD 563
+ LK RNL D G +DPYVK Y G+ V K KT K LNPV++E F +
Sbjct: 4 IHLKEGRNLAARDRGGTSDPYVKFK--YGGKTVYKSKTIYK--NLNPVWDEKFTLPI--- 56
Query: 564 NLDSVSLELLL--LDWDRVTKNEVIGR--LDL 591
+ V+ L + D+DR ++ +G +DL
Sbjct: 57 --EDVTQPLYIKVFDYDRGLTDDFMGSAFVDL 86
>gnl|CDD|176074 cd08692, C2B_Tac2-N, C2 domain second repeat found in Tac2-N
(Tandem C2 protein in Nucleus). Tac2-N contains two C2
domains and a short C-terminus including a WHXL motif,
which are key in stabilizing transport vesicles to the
plasma membrane by binding to a plasma membrane.
However unlike the usual carboxyl-terminal-type (C-type)
tandem C2 proteins, it lacks a transmembrane domain, a
Slp-homology domain, and a Munc13-1-interacting domain.
Homology search analysis indicate that no known protein
motifs are located in its N-terminus, making Tac2-N a
novel class of Ca2+-independent, C-type tandem C2
proteins. The C2 domain was first identified in PKC. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 135
Score = 55.7 bits (134), Expect = 2e-09
Identities = 34/132 (25%), Positives = 61/132 (46%), Gaps = 2/132 (1%)
Query: 488 EILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRT 547
E+ L C+Q +R + +L+A+NLP +VKV + G + KKKT + K +
Sbjct: 2 ELQLGTCFQAVNSRIQLQILEAQNLPSSSTPLTLSFFVKVGMFSTGGLLYKKKTRLVKSS 61
Query: 548 LNPV-YNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTD 606
V + E+ +F V + + L V + +G++ + D SS A+ W D
Sbjct: 62 NGQVKWGETMIFPVTQQE-HGIQFLIKLYSRSSVRRKHFLGQVWISSDSSSSEAVEQWKD 120
Query: 607 VCNSPRRQIAEW 618
+P + + +W
Sbjct: 121 TIANPEKVVTKW 132
>gnl|CDD|176012 cd04047, C2B_Copine, C2 domain second repeat in Copine. There are
2 copies of the C2 domain present in copine, a protein
involved in membrane trafficking, protein-protein
interactions, and perhaps even cell division and growth.
C2 domains fold into an 8-standed beta-sandwich that
can adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 110
Score = 53.7 bits (130), Expect = 6e-09
Identities = 24/86 (27%), Positives = 42/86 (48%), Gaps = 8/86 (9%)
Query: 507 LKARNLPKMDVTGLADPYVKVYLLYK-GQRVAKKKTHVKKRTLNPVYNESFVFEVPADNL 565
+ L K D G +DP++++ + G V +T V K TLNPV+ F +P L
Sbjct: 7 FSGKKLDKKDFFGKSDPFLEISRQSEDGTWVLVYRTEVIKNTLNPVWKP---FTIPLQKL 63
Query: 566 ----DSVSLELLLLDWDRVTKNEVIG 587
+++ + D+D K+++IG
Sbjct: 64 CNGDYDRPIKIEVYDYDSSGKHDLIG 89
>gnl|CDD|176001 cd04036, C2_cPLA2, C2 domain present in cytosolic PhosphoLipase A2
(cPLA2). A single copy of the C2 domain is present in
cPLA2 which releases arachidonic acid from membranes
initiating the biosynthesis of potent inflammatory
mediators such as prostaglandins, leukotrienes, and
platelet-activating factor. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members of this cd have a
type-II topology.
Length = 119
Score = 53.4 bits (129), Expect = 8e-09
Identities = 30/83 (36%), Positives = 48/83 (57%), Gaps = 10/83 (12%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVA---KKKTHVKKRTLNPVYNESFV 557
T+ VL+A N+ K D+ D YV+++L A KK+T K ++NPV+NE+F
Sbjct: 1 LLTVRVLRATNITKGDLLSTPDCYVELWL-----PTASDEKKRTKTIKNSINPVWNETFE 55
Query: 558 FEVPADNLDSVSLELLLLDWDRV 580
F + + + +V LEL ++D D V
Sbjct: 56 FRIQS-QVKNV-LELTVMDEDYV 76
Score = 46.9 bits (112), Expect = 2e-06
Identities = 29/94 (30%), Positives = 48/94 (51%), Gaps = 8/94 (8%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHL--LPDKQKVKTRVLRKTRNPIYNEEFTFTG 372
+L V V++ ++ D S + D YV++ L D +K +T+ ++ + NP++NE F F
Sbjct: 1 LLTVRVLRATNITKGDLLS-TPDCYVELWLPTASD-EKKRTKTIKNSINPVWNETFEF-- 56
Query: 373 ITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVV 406
Q+K + L V D Y DD T+ F V
Sbjct: 57 RIQSQVK-NVLELTVMDED-YVMDDHLGTVLFDV 88
>gnl|CDD|175977 cd04010, C2B_RasA3, C2 domain second repeat present in RAS p21
protein activator 3 (RasA3). RasA3 are members of
GTPase activating protein 1 (GAP1), a Ras-specific GAP,
which suppresses Ras function by enhancing the GTPase
activity of Ras proteins resulting in the inactive
GDP-bound form of Ras. In this way it can control
cellular proliferation and differentiation. RasA3
contains an N-terminal C2 domain, a Ras-GAP domain, a
plextrin homology (PH)-like domain, and a Bruton's
Tyrosine Kinase (BTK) zinc binding domain. C2 domains
fold into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 148
Score = 53.2 bits (128), Expect = 2e-08
Identities = 25/69 (36%), Positives = 35/69 (50%), Gaps = 6/69 (8%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPY--VKVHLLPDKQKVK-TRVLRKTRNPIYNEEFTFTG 372
L V VI+C DL +K +G+ DPY V + KQ K T+V +KT NP ++E F F
Sbjct: 2 LSVRVIECSDLALK---NGTCDPYASVTLIYSNKKQDTKRTKVKKKTNNPQFDEAFYFDV 58
Query: 373 ITPHQLKGS 381
+
Sbjct: 59 TIDSSPEKK 67
Score = 50.9 bits (122), Expect = 2e-07
Identities = 22/64 (34%), Positives = 38/64 (59%), Gaps = 2/64 (3%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
+ ++ V++ +L G DPY V L+Y ++ K+T VKK+T NP ++E+F F+V
Sbjct: 1 KLSVRVIECSDLAL--KNGTCDPYASVTLIYSNKKQDTKRTKVKKKTNNPQFDEAFYFDV 58
Query: 561 PADN 564
D+
Sbjct: 59 TIDS 62
>gnl|CDD|175989 cd04022, C2A_MCTP_PRT_plant, C2 domain first repeat found in
Multiple C2 domain and Transmembrane region Proteins
(MCTP); plant subset. MCTPs are involved in Ca2+
signaling at the membrane. Plant-MCTPs are composed of
a variable N-terminal sequence, four C2 domains, two
transmembrane regions (TMRs), and a short C-terminal
sequence. It is one of four protein classes that are
anchored to membranes via a transmembrane region; the
others being synaptotagmins, extended synaptotagmins,
and ferlins. MCTPs are the only membrane-bound C2 domain
proteins that contain two functional TMRs. MCTPs are
unique in that they bind Ca2+ but not phospholipids. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-II topology.
Length = 127
Score = 52.3 bits (126), Expect = 3e-08
Identities = 30/80 (37%), Positives = 41/80 (51%), Gaps = 3/80 (3%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
LVV V+ +DL KD GSS YV++ D QK +TR K NP++NE+ F P
Sbjct: 2 LVVEVVDAQDLMPKDG-QGSSSAYVELDF--DGQKKRTRTKPKDLNPVWNEKLVFNVSDP 58
Query: 376 HQLKGSTLHFVVFSFDRYSR 395
+L L V++ R R
Sbjct: 59 SRLSNLVLEVYVYNDRRSGR 78
Score = 49.6 bits (119), Expect = 3e-07
Identities = 25/71 (35%), Positives = 38/71 (53%), Gaps = 9/71 (12%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNL 565
V+ A++L D G + YV++ + GQ+ K+T K + LNPV+NE VF V
Sbjct: 6 VVDAQDLMPKDGQGSSSAYVELD--FDGQK---KRTRTKPKDLNPVWNEKLVFNVS---- 56
Query: 566 DSVSLELLLLD 576
D L L+L+
Sbjct: 57 DPSRLSNLVLE 67
>gnl|CDD|176019 cd08373, C2A_Ferlin, C2 domain first repeat in Ferlin. Ferlins are
involved in vesicle fusion events. Ferlins and other
proteins, such as Synaptotagmins, are implicated in
facilitating the fusion process when cell membranes fuse
together. There are six known human Ferlins: Dysferlin
(Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3),
Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can
lead to a wide range of diseases including muscular
dystrophy (dysferlin), deafness (otoferlin), and
infertility (fer-1, fertilization factor-1).
Structurally they have 6 tandem C2 domains, designated
as (C2A-C2F) and a single C-terminal transmembrane
domain, though there is a new study that disputes this
and claims that there are actually 7 tandem C2 domains
with another C2 domain inserted between C2D and C2E.
In a subset of them (Dysferlin, Myoferlin, and Fer1)
there is an additional conserved domain called DysF. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-II topology.
Length = 127
Score = 52.3 bits (126), Expect = 3e-08
Identities = 30/89 (33%), Positives = 51/89 (57%), Gaps = 11/89 (12%)
Query: 505 VVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV--PA 562
+V+ +NLP + G D KV ++G KKKT V + LNPV+NE+F + +
Sbjct: 1 LVVSLKNLPGL--KGKGDRIAKV--TFRG---VKKKTRVLENELNPVWNETFEWPLAGSP 53
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
D + SLE+++ D+++V +N +IG +
Sbjct: 54 DPDE--SLEIVVKDYEKVGRNRLIGSATV 80
Score = 44.2 bits (105), Expect = 2e-05
Identities = 26/108 (24%), Positives = 40/108 (37%), Gaps = 25/108 (23%)
Query: 319 TVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQL 378
V+ ++L G D KV K+K TRVL NP++NE
Sbjct: 1 LVVSLKNLPGLK---GKGDRIAKVTFRGVKKK--TRVLENELNPVWNE------------ 43
Query: 379 KGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQ 426
F + D +L VV +++ R+ ++G SLQ
Sbjct: 44 --------TFEWPLAGSPDPDESLEIVVKDYEKVGRNRLIGSATVSLQ 83
>gnl|CDD|176009 cd04044, C2A_Tricalbin-like, C2 domain first repeat present in
Tricalbin-like proteins. 5 to 6 copies of the C2 domain
are present in Tricalbin, a yeast homolog of
Synaptotagmin, which is involved in membrane trafficking
and sorting. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-II topology.
Length = 124
Score = 52.2 bits (126), Expect = 3e-08
Identities = 36/151 (23%), Positives = 59/151 (39%), Gaps = 34/151 (22%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGIT 374
VL VT+ R L D G+ DPYV + ++ +T+V + T NP++NE
Sbjct: 3 VLAVTIKSARGLKGSDIIGGTVDPYVTFSISNRRELARTKVKKDTSNPVWNE-------- 54
Query: 375 PHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSFETYGS- 433
T + +V S L+ V+ F+ +D ++G + L S
Sbjct: 55 -------TKYILVNSL--------TEPLNLTVYDFNDKRKDKLIGTAEFDLSSLLQNPEQ 99
Query: 434 ---TLHFVVFSFDRYSRDDIVGEVFYSLQSF 461
T + + VGE+ Y L+ F
Sbjct: 100 ENLTKNLL-------RNGKPVGELNYDLRFF 123
Score = 37.5 bits (88), Expect = 0.003
Identities = 28/89 (31%), Positives = 43/89 (48%), Gaps = 7/89 (7%)
Query: 504 IVVLKARNLPKMD-VTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPA 562
+ + AR L D + G DPYV + R +T VKK T NPV+NE+ V
Sbjct: 6 VTIKSARGLKGSDIIGGTVDPYVTFSI---SNRRELARTKVKKDTSNPVWNETKYILV-- 60
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
N + L L + D++ K+++IG +
Sbjct: 61 -NSLTEPLNLTVYDFNDKRKDKLIGTAEF 88
>gnl|CDD|175974 cd00275, C2_PLC_like, C2 domain present in
Phosphoinositide-specific phospholipases C (PLC). PLCs
are involved in the hydrolysis of
phosphatidylinositol-4,5-bisphosphate (PIP2) to
d-myo-inositol-1,4,5-trisphosphate (1,4,5-IP3) and
sn-1,2-diacylglycerol (DAG). 1,4,5-IP3 and DAG are
second messengers in eukaryotic signal transduction
cascades. PLC is composed of a N-terminal PH domain
followed by a series of EF hands, a catalytic TIM barrel
and a C-terminal C2 domain. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-II
topology.
Length = 128
Score = 52.2 bits (126), Expect = 3e-08
Identities = 28/90 (31%), Positives = 41/90 (45%), Gaps = 9/90 (10%)
Query: 316 LVVTVIKCRDLF-IKDTPSGSSDPYVKVHLL----PDKQKVKTRVLRK-TRNPIYNEEFT 369
L + +I + L K DPYV+V + D K KT+V++ NP++NE F
Sbjct: 4 LTIKIISGQQLPKPKGDKGSIVDPYVEVEIHGLPADDSAKFKTKVVKNNGFNPVWNETFE 63
Query: 370 FTGITPHQLKGSTLHFVVFSFDRYSRDDIG 399
F P + L FVV+ D D +G
Sbjct: 64 FDVTVPEL---AFLRFVVYDEDSGDDDFLG 90
Score = 49.5 bits (119), Expect = 3e-07
Identities = 26/66 (39%), Positives = 35/66 (53%), Gaps = 8/66 (12%)
Query: 501 RFTIVVLKARNLPKM--DVTGLADPYVKVYLLYKG---QRVAKKKTHVKKR-TLNPVYNE 554
TI ++ + LPK D + DPYV+V + G AK KT V K NPV+NE
Sbjct: 3 TLTIKIISGQQLPKPKGDKGSIVDPYVEVEIH--GLPADDSAKFKTKVVKNNGFNPVWNE 60
Query: 555 SFVFEV 560
+F F+V
Sbjct: 61 TFEFDV 66
>gnl|CDD|176029 cd08383, C2A_RasGAP, C2 domain (first repeat) of Ras GTPase
activating proteins (GAPs). RasGAPs suppress Ras
function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. The proteins here all contain
either a single C2 domain or two tandem C2 domains, a
Ras-GAP domain, and a pleckstrin homology (PH)-like
domain. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions. Members here have a type-I topology.
Length = 117
Score = 51.9 bits (125), Expect = 3e-08
Identities = 27/88 (30%), Positives = 44/88 (50%), Gaps = 8/88 (9%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPAD 563
+ +L+A+NLP G DPY V L +V +T ++ LNP + E FVF+ P
Sbjct: 4 LRILEAKNLP---SKGTRDPYCTVSL----DQVEVARTKTVEK-LNPFWGEEFVFDDPPP 55
Query: 564 NLDSVSLELLLLDWDRVTKNEVIGRLDL 591
++ +L D ++ VIG++ L
Sbjct: 56 DVTFFTLSFYNKDKRSKDRDIVIGKVAL 83
Score = 32.2 bits (74), Expect = 0.24
Identities = 25/83 (30%), Positives = 39/83 (46%), Gaps = 9/83 (10%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGIT 374
L + +++ ++L K G+ DPY V L D+ +V +T+ + K NP + EEF F
Sbjct: 2 LRLRILEAKNLPSK----GTRDPYCTVSL--DQVEVARTKTVEKL-NPFWGEEFVFD-DP 53
Query: 375 PHQLKGSTLHFVVFSFDRYSRDD 397
P + TL F RD
Sbjct: 54 PPDVTFFTLSFYNKDKRSKDRDI 76
>gnl|CDD|176067 cd08685, C2_RGS-like, C2 domain of the Regulator Of G-Protein
Signaling (RGS) family. This CD contains members of the
regulator of G-protein signaling (RGS) family. RGS is a
GTPase activating protein which inhibits G-protein
mediated signal transduction. The protein is largely
cytosolic, but G-protein activation leads to
translocation of this protein to the plasma membrane. A
nuclear form of this protein has also been described,
but its sequence has not been identified. There are
multiple alternatively spliced transcript variants in
this family with some members having additional domains
(ex. PDZ and RGS) downstream of the C2 domain. The C2
domain was first identified in PKC. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 119
Score = 50.5 bits (121), Expect = 1e-07
Identities = 30/119 (25%), Positives = 51/119 (42%), Gaps = 28/119 (23%)
Query: 301 GQIFFKIKYQEKENVLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQ---KVKTRVLR 357
GQ+ I+ Q L + V++ + L + T SG+ + YVK+ L PDK+ + KT +
Sbjct: 1 GQLKLSIEGQN--RKLTLHVLEAKGL--RSTNSGTCNSYVKISLSPDKEVRFRQKTSTVP 56
Query: 358 KTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDD 416
+ NP+++E F+F + D L V++ SRD
Sbjct: 57 DSANPLFHETFSF---------------------DVNERDYQKRLLVTVWNKLSKSRDS 94
Score = 45.1 bits (107), Expect = 7e-06
Identities = 27/96 (28%), Positives = 52/96 (54%), Gaps = 6/96 (6%)
Query: 487 GEILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKR 546
G++ LS+ Q + T+ VL+A+ L + +G + YVK+ L + ++KT
Sbjct: 1 GQLKLSIEGQ--NRKLTLHVLEAKGLRSTN-SGTCNSYVKISLSPDKEVRFRQKTSTVPD 57
Query: 547 TLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTK 582
+ NP+++E+F F+V N LL+ W++++K
Sbjct: 58 SANPLFHETFSFDV---NERDYQKRLLVTVWNKLSK 90
>gnl|CDD|176023 cd08377, C2C_MCTP_PRT, C2 domain third repeat found in Multiple C2
domain and Transmembrane region Proteins (MCTP). MCTPs
are involved in Ca2+ signaling at the membrane. The cds
in this family contain multiple C2 domains as well as a
C-terminal PRT domain. It is one of four protein
classes that are anchored to membranes via a
transmembrane region; the others being synaptotagmins,
extended synaptotagmins, and ferlins. MCTPs are the only
membrane-bound C2 domain proteins that contain two
functional TMRs. MCTPs are unique in that they bind Ca2+
but not phospholipids. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 119
Score = 50.0 bits (120), Expect = 1e-07
Identities = 27/88 (30%), Positives = 47/88 (53%), Gaps = 8/88 (9%)
Query: 502 FTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ V++A L D+ G +DP+ + L A+ +TH +TLNP +N+ F F P
Sbjct: 3 LQVKVIRASGLAAADIGGKSDPFCVLEL-----VNARLQTHTIYKTLNPEWNKIFTF--P 55
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGRL 589
++ V LE+ + D D+ K E +G++
Sbjct: 56 IKDIHDV-LEVTVYDEDKDKKPEFLGKV 82
Score = 40.4 bits (95), Expect = 4e-04
Identities = 20/55 (36%), Positives = 30/55 (54%), Gaps = 3/55 (5%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTF 370
L V VI+ L D G SDP+ + L+ +++T + KT NP +N+ FTF
Sbjct: 3 LQVKVIRASGLAAADI-GGKSDPFCVLELV--NARLQTHTIYKTLNPEWNKIFTF 54
>gnl|CDD|176058 cd08676, C2A_Munc13-like, C2 domain first repeat in Munc13
(mammalian uncoordinated)-like proteins. C2-like
domains are thought to be involved in phospholipid
binding in a Ca2+ independent manner in both Unc13 and
Munc13. Caenorabditis elegans Unc13 has a central domain
with sequence similarity to PKC, which includes C1 and
C2-related domains. Unc13 binds phorbol esters and DAG
with high affinity in a phospholipid manner. Mutations
in Unc13 results in abnormal neuronal connections and
impairment in cholinergic neurotransmission in the
nematode. Munc13 is the mammalian homolog which are
expressed in the brain. There are 3 isoforms (Munc13-1,
-2, -3) and are thought to play a role in
neurotransmitter release and are hypothesized to be
high-affinity receptors for phorbol esters. Unc13 and
Munc13 contain both C1 and C2 domains. There are two C2
related domains present, one central and one at the
carboxyl end. Munc13-1 contains a third C2-like domain.
Munc13 interacts with syntaxin, synaptobrevin, and
synaptotagmin suggesting a role for these as scaffolding
proteins. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 153
Score = 50.4 bits (121), Expect = 2e-07
Identities = 31/101 (30%), Positives = 46/101 (45%), Gaps = 30/101 (29%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKK----------------------- 540
+ V++A+ L DV G +DPY + ++ + +K
Sbjct: 32 VTVIEAKGLLAKDVNGFSDPYCMLGIVPASRERNSEKSKKRKSHRKKAVLKDTVPAKSIK 91
Query: 541 -THVKKRTLNPVYNESFVFEVPADNLDSVSLELLLLD-WDR 579
T VK +TLNPV+NE+F FEV + VS + L LD WD
Sbjct: 92 VTEVKPQTLNPVWNETFRFEV-----EDVSNDQLHLDIWDH 127
Score = 41.6 bits (98), Expect = 2e-04
Identities = 26/84 (30%), Positives = 33/84 (39%), Gaps = 28/84 (33%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPY---------------------------VKVHLLPD 347
VL VTVI+ + L KD +G SDPY V +P
Sbjct: 29 VLKVTVIEAKGLLAKD-VNGFSDPYCMLGIVPASRERNSEKSKKRKSHRKKAVLKDTVPA 87
Query: 348 KQKVKTRVLRKTRNPIYNEEFTFT 371
K T V +T NP++NE F F
Sbjct: 88 KSIKVTEVKPQTLNPVWNETFRFE 111
>gnl|CDD|175990 cd04024, C2A_Synaptotagmin-like, C2 domain first repeat present in
Synaptotagmin-like proteins. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Previously all synaptotagmins
were thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 128
Score = 48.6 bits (116), Expect = 5e-07
Identities = 28/114 (24%), Positives = 46/114 (40%), Gaps = 25/114 (21%)
Query: 315 VLVVTVIKCRDLFIKD-TPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGI 373
VL V V++ +DL KD + G SDPY + + Q+ KT+ + T NP +N F
Sbjct: 2 VLRVHVVEAKDLAAKDRSGKGKSDPYAILSV--GAQRFKTQTIPNTLNPKWNYWCEFP-- 57
Query: 374 TPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQS 427
L +++ DR++ D +GE +L+
Sbjct: 58 --------------------IFSAQNQLLKLILWDKDRFAGKDYLGEFDIALEE 91
Score = 45.1 bits (107), Expect = 8e-06
Identities = 26/90 (28%), Positives = 43/90 (47%), Gaps = 9/90 (10%)
Query: 504 IVVLKARNLPKMDV--TGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ V++A++L D G +DPY + + G + KT TLNP +N E P
Sbjct: 5 VHVVEAKDLAAKDRSGKGKSDPYAILSV---GA--QRFKTQTIPNTLNPKWNYW--CEFP 57
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
+ + L+L+L D DR + +G D+
Sbjct: 58 IFSAQNQLLKLILWDKDRFAGKDYLGEFDI 87
>gnl|CDD|175993 cd04027, C2B_Munc13, C2 domain second repeat in Munc13 (mammalian
uncoordinated) proteins. C2-like domains are thought to
be involved in phospholipid binding in a Ca2+
independent manner in both Unc13 and Munc13.
Caenorabditis elegans Unc13 has a central domain with
sequence similarity to PKC, which includes C1 and
C2-related domains. Unc13 binds phorbol esters and DAG
with high affinity in a phospholipid manner. Mutations
in Unc13 results in abnormal neuronal connections and
impairment in cholinergic neurotransmission in the
nematode. Munc13 is the mammalian homolog which are
expressed in the brain. There are 3 isoforms (Munc13-1,
-2, -3) and are thought to play a role in
neurotransmitter release and are hypothesized to be
high-affinity receptors for phorbol esters. Unc13 and
Munc13 contain both C1 and C2 domains. There are two C2
related domains present, one central and one at the
carboxyl end. Munc13-1 contains a third C2-like domain.
Munc13 interacts with syntaxin, synaptobrevin, and
synaptotagmin suggesting a role for these as scaffolding
proteins. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 127
Score = 47.9 bits (114), Expect = 9e-07
Identities = 25/59 (42%), Positives = 35/59 (59%), Gaps = 5/59 (8%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFE 559
+ +I V+ A+ L D TG +DPYV V + G+ KK+T + LNPV+NE F FE
Sbjct: 2 KISITVVCAQGLIAKDKTGTSDPYVTVQV---GK--TKKRTKTIPQNLNPVWNEKFHFE 55
Score = 44.9 bits (106), Expect = 1e-05
Identities = 21/55 (38%), Positives = 35/55 (63%), Gaps = 3/55 (5%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTF 370
+ +TV+ + L KD +G+SDPYV V + K K +T+ + + NP++NE+F F
Sbjct: 3 ISITVVCAQGLIAKDK-TGTSDPYVTVQV--GKTKKRTKTIPQNLNPVWNEKFHF 54
>gnl|CDD|176016 cd04051, C2_SRC2_like, C2 domain present in Soybean genes Regulated
by Cold 2 (SRC2)-like proteins. SRC2 production is a
response to pathogen infiltration. The initial response
of increased Ca2+ concentrations are coupled to
downstream signal transduction pathways via calcium
binding proteins. SRC2 contains a single C2 domain
which localizes to the plasma membrane and is involved
in Ca2+ dependent protein binding. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 125
Score = 46.1 bits (110), Expect = 4e-06
Identities = 26/114 (22%), Positives = 34/114 (29%), Gaps = 21/114 (18%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRK-TRNPIYNEEFTFTGIT 374
L +T+I DL G Y V + P K T V R NP +NE
Sbjct: 2 LEITIISAEDL-KNVNLFGKMKVYAVVWIDP-SHKQSTPVDRDGGTNPTWNETL------ 53
Query: 375 PHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQSF 428
F D L V+ D ++GEV L+
Sbjct: 54 ------------RFPLDERLLQQGRLALTIEVYCERPSLGDKLIGEVRVPLKDL 95
Score = 36.1 bits (84), Expect = 0.011
Identities = 22/98 (22%), Positives = 36/98 (36%), Gaps = 14/98 (14%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHV-KKRTLNPVYNESFVFEVPA 562
I ++ A +L +++ G Y V++ + T V + NP +NE+ F +
Sbjct: 4 ITIISAEDLKNVNLFGKMKVYAVVWI-DPSHKQ---STPVDRDGGTNPTWNETLRFPLDE 59
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTA 600
L L L + EV GDK G
Sbjct: 60 RLLQQGRLALTI---------EVYCERPSLGDKLIGEV 88
>gnl|CDD|176063 cd08681, C2_fungal_Inn1p-like, C2 domain found in fungal Ingression
1 (Inn1) proteins. Saccharomyces cerevisiae Inn1
associates with the contractile actomyosin ring at the
end of mitosis and is needed for cytokinesis. The C2
domain of Inn1, located at the N-terminus, is required
for ingression of the plasma membrane. The C-terminus is
relatively unstructured and contains eight PXXP motifs
that are thought to mediate interaction of Inn1 with
other proteins with SH3 domains in the cytokinesis
proteins Hof1 (an F-BAR protein) and Cyk3 (whose
overexpression can restore primary septum formation in
Inn1Delta cells) as well as recruiting Inn1 to the
bud-neck by binding to Cyk3. Inn1 and Cyk3 appear to
cooperate in activating chitin synthase Chs2 for primary
septum formation, which allows coordination of
actomyosin ring contraction with ingression of the
cleavage furrow. It is thought that the C2 domain of
Inn1 helps to preserve the link between the actomyosin
ring and the plasma membrane, contributing both to
membrane ingression, as well as to stability of the
contracting ring. Additionally, Inn1 might induce
curvature of the plasma membrane adjacent to the
contracting ring, thereby promoting ingression of the
membrane. It has been shown that the C2 domain of human
synaptotagmin induces curvature in target membranes and
thereby contributes to fusion of these membranes with
synaptic vesicles. The C2 domain was first identified in
PKC. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions.
Length = 118
Score = 44.9 bits (107), Expect = 8e-06
Identities = 30/93 (32%), Positives = 43/93 (46%), Gaps = 15/93 (16%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVA--KKKTHVKKRT-LNPVYNESFVFEV 560
+VVLKARNLP DPY + R+ KKT R +P ++E FE+
Sbjct: 5 VVVLKARNLPNKRKLDKQDPYCVL-------RIGGVTKKTKTDFRGGQHPEWDEELRFEI 57
Query: 561 PADNLDSVSLELLLLDWDRVTKNEVIGR--LDL 591
D L++ + D D K ++IG +DL
Sbjct: 58 TED--KKPILKVAVFD-DDKRKPDLIGDTEVDL 87
Score = 34.1 bits (79), Expect = 0.042
Identities = 28/87 (32%), Positives = 39/87 (44%), Gaps = 7/87 (8%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKT-RNPIYNEEFTFTGIT 374
LVV V+K R+L K DPY + + KT+ + ++P ++EE F IT
Sbjct: 3 LVVVVLKARNLPNKRK-LDKQDPYCVLRI--GGVTKKTKTDFRGGQHPEWDEELRFE-IT 58
Query: 375 PHQLKGSTLHFVVFSFDRYSRDDIGST 401
K L VF D+ D IG T
Sbjct: 59 ED--KKPILKVAVFDDDKRKPDLIGDT 83
>gnl|CDD|176011 cd04046, C2_Calpain, C2 domain present in Calpain proteins. A
single C2 domain is found in calpains (EC 3.4.22.52, EC
3.4.22.53), calcium-dependent, non-lysosomal cysteine
proteases. Caplains are classified as belonging to Clan
CA by MEROPS and include six families: C1, C2, C10, C12,
C28, and C47. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 126
Score = 45.0 bits (107), Expect = 9e-06
Identities = 19/56 (33%), Positives = 30/56 (53%), Gaps = 5/56 (8%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVF 558
+ V A L K D G ADPYV + +G+ V ++ V+K TL+P ++ +F
Sbjct: 6 QVHVHSAEGLSKQDSGGGADPYVIIKC--EGESV---RSPVQKDTLSPEFDTQAIF 56
Score = 40.7 bits (96), Expect = 3e-04
Identities = 15/56 (26%), Positives = 27/56 (48%), Gaps = 3/56 (5%)
Query: 315 VLVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTF 370
V V V L +D G +DPYV + + + V++ V + T +P ++ + F
Sbjct: 4 VTQVHVHSAEGLSKQD-SGGGADPYVIIKC--EGESVRSPVQKDTLSPEFDTQAIF 56
>gnl|CDD|176018 cd04054, C2A_Rasal1_RasA4, C2 domain first repeat present in RasA1
and RasA4. Rasal1 and RasA4 are both members of GAP1
(GTPase activating protein 1). Rasal1 responds to
repetitive Ca2+ signals by associating with the plasma
membrane and deactivating Ras. RasA4 suppresses Ras
function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. Both of these proteins contains
two C2 domains, a Ras-GAP domain, a plextrin homology
(PH)-like domain, and a Bruton's Tyrosine Kinase (BTK)
zinc binding domain. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 121
Score = 44.8 bits (106), Expect = 1e-05
Identities = 26/88 (29%), Positives = 47/88 (53%), Gaps = 7/88 (7%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPAD 563
I +++ +NLP D+TG +DPY V K +T +TLNP + E + +P
Sbjct: 4 IRIVEGKNLPAKDITGSSDPYCIV----KVDNEVIIRTATVWKTLNPFWGEEYTVHLP-- 57
Query: 564 NLDSVSLELLLLDWDRVTKNEVIGRLDL 591
++ +LD D +++++VIG++ L
Sbjct: 58 -PGFHTVSFYVLDEDTLSRDDVIGKVSL 84
Score = 40.2 bits (94), Expect = 4e-04
Identities = 34/109 (31%), Positives = 51/109 (46%), Gaps = 31/109 (28%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPY--VKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTG 372
L + +++ ++L KD +GSSDPY VKV D + + +T + KT NP + EE+T
Sbjct: 2 LYIRIVEGKNLPAKDI-TGSSDPYCIVKV----DNEVIIRTATVWKTLNPFWGEEYTV-- 54
Query: 373 ITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEV 421
L H T+ F V D SRDD++G+V
Sbjct: 55 ----HLPP-GFH----------------TVSFYVLDEDTLSRDDVIGKV 82
>gnl|CDD|176013 cd04048, C2A_Copine, C2 domain first repeat in Copine. There are 2
copies of the C2 domain present in copine, a protein
involved in membrane trafficking, protein-protein
interactions, and perhaps even cell division and growth.
C2 domains fold into an 8-standed beta-sandwich that
can adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 120
Score = 43.7 bits (104), Expect = 2e-05
Identities = 18/55 (32%), Positives = 27/55 (49%), Gaps = 2/55 (3%)
Query: 507 LKARNLPKMDVTGLADPYVKVYLLYKGQRVAKK--KTHVKKRTLNPVYNESFVFE 559
+ RNL DV +DP+V VY+ G + +T V K LNP + +F +
Sbjct: 7 ISCRNLLDKDVLSKSDPFVVVYVKTGGSGQWVEIGRTEVIKNNLNPDFVTTFTVD 61
Score = 32.9 bits (76), Expect = 0.15
Identities = 18/55 (32%), Positives = 26/55 (47%), Gaps = 6/55 (10%)
Query: 321 IKCRDLFIKDTPSGSSDPYVKVHLLPDKQKV-----KTRVLRKTRNPIYNEEFTF 370
I CR+L KD S SDP+V V++ +T V++ NP + FT
Sbjct: 7 ISCRNLLDKDVLSK-SDPFVVVYVKTGGSGQWVEIGRTEVIKNNLNPDFVTTFTV 60
>gnl|CDD|176015 cd04050, C2B_Synaptotagmin-like, C2 domain second repeat present in
Synaptotagmin-like proteins. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Previously all synaptotagmins
were thought to be calcium sensors in the regulation of
neurotransmitter release and hormone secretion, but it
has been shown that not all of them bind calcium. Of
the 17 identified synaptotagmins only 8 bind calcium
(1-3, 5-7, 9, 10). The function of the two C2 domains
that bind calcium are: regulating the fusion step of
synaptic vesicle exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-I topology.
Length = 105
Score = 42.9 bits (102), Expect = 3e-05
Identities = 27/90 (30%), Positives = 42/90 (46%), Gaps = 10/90 (11%)
Query: 502 FTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP 561
+ + A+NLP T PYV++ + G+ +K+ VK+RT NPV+ E F F V
Sbjct: 2 LFVYLDSAKNLPLAKSTKEPSPYVELTV---GK--TTQKSKVKERTNNPVWEEGFTFLVR 56
Query: 562 ADNLDSVSLELLLLDWDRVTKNEVIGRLDL 591
+ +E+ D T +G L L
Sbjct: 57 NPENQELEIEVK----DDKTGKS-LGSLTL 81
Score = 36.8 bits (86), Expect = 0.005
Identities = 16/56 (28%), Positives = 24/56 (42%), Gaps = 5/56 (8%)
Query: 337 DPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDR 392
PYV++ + K K++V +T NP++ E FTF P L V
Sbjct: 22 SPYVELTV--GKTTQKSKVKERTNNPVWEEGFTFLVRNPE---NQELEIEVKDDKT 72
>gnl|CDD|175986 cd04019, C2C_MCTP_PRT_plant, C2 domain third repeat found in
Multiple C2 domain and Transmembrane region Proteins
(MCTP); plant subset. MCTPs are involved in Ca2+
signaling at the membrane. Plant-MCTPs are composed of
a variable N-terminal sequence, four C2 domains, two
transmembrane regions (TMRs), and a short C-terminal
sequence. It is one of four protein classes that are
anchored to membranes via a transmembrane region; the
others being synaptotagmins, extended synaptotagmins,
and ferlins. MCTPs are the only membrane-bound C2 domain
proteins that contain two functional TMRs. MCTPs are
unique in that they bind Ca2+ but not phospholipids. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 150
Score = 43.8 bits (104), Expect = 3e-05
Identities = 20/56 (35%), Positives = 29/56 (51%), Gaps = 4/56 (7%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRV-LRKTRNPIYNEEFTF 370
L VTVI+ +DL D + + +VK L Q ++TR + NP +NEE F
Sbjct: 2 LRVTVIEAQDLVPSD-KNRVPEVFVKAQLGN--QVLRTRPSQTRNGNPSWNEELMF 54
Score = 38.4 bits (90), Expect = 0.002
Identities = 27/90 (30%), Positives = 45/90 (50%), Gaps = 16/90 (17%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVF---EV 560
+ V++A++L D + + +VK L G +V + + + R NP +NE +F E
Sbjct: 4 VTVIEAQDLVPSDKNRVPEVFVKAQL---GNQVLRTRP-SQTRNGNPSWNEELMFVAAEP 59
Query: 561 PADNLDSVSLELLLLDWDRVTKN--EVIGR 588
D+L +S+E DRV N E +GR
Sbjct: 60 FEDHL-ILSVE------DRVGPNKDEPLGR 82
>gnl|CDD|176024 cd08378, C2B_MCTP_PRT_plant, C2 domain second repeat found in
Multiple C2 domain and Transmembrane region Proteins
(MCTP); plant subset. MCTPs are involved in Ca2+
signaling at the membrane. Plant-MCTPs are composed of
a variable N-terminal sequence, four C2 domains, two
transmembrane regions (TMRs), and a short C-terminal
sequence. It is one of four protein classes that are
anchored to membranes via a transmembrane region; the
others being synaptotagmins, extended synaptotagmins,
and ferlins. MCTPs are the only membrane-bound C2 domain
proteins that contain two functional TMRs. MCTPs are
unique in that they bind Ca2+ but not phospholipids. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 121
Score = 42.7 bits (101), Expect = 5e-05
Identities = 30/90 (33%), Positives = 44/90 (48%), Gaps = 16/90 (17%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNL 565
V+KAR LP DP V+V L G K ++ RT NP +N+ F F D L
Sbjct: 6 VVKARGLP----ANSNDPVVEVKL---GNYKGSTK-AIE-RTSNPEWNQVFAFS--KDRL 54
Query: 566 DSVSLELLLLDWDRVT-KNEVIGRL--DLG 592
+LE+ + WD+ K++ +G + DL
Sbjct: 55 QGSTLEVSV--WDKDKAKDDFLGGVCFDLS 82
Score = 40.0 bits (94), Expect = 5e-04
Identities = 32/95 (33%), Positives = 46/95 (48%), Gaps = 16/95 (16%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L V V+K R L P+ S+DP V+V L K T+ + +T NP +N+ F F+
Sbjct: 2 LYVRVVKARGL-----PANSNDPVVEVKL--GNYKGSTKAIERTSNPEWNQVFAFSKDR- 53
Query: 376 HQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFSFD 410
L+GSTL V+ D+ D +G FD
Sbjct: 54 --LQGSTLEVSVWDKDKAKDDFLGG------VCFD 80
>gnl|CDD|176060 cd08678, C2_C21orf25-like, C2 domain found in the Human chromosome
21 open reading frame 25 (C21orf25) protein. The
members in this cd are named after the Human C21orf25
which contains a single C2 domain. Several other
members contain a C1 domain downstream of the C2 domain.
No other information on this protein is currently
known. The C2 domain was first identified in PKC. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 126
Score = 42.7 bits (101), Expect = 5e-05
Identities = 21/75 (28%), Positives = 35/75 (46%), Gaps = 11/75 (14%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L+V IK +GSS+PY + + QK ++ + T NP ++E F F
Sbjct: 1 LLVKNIK---ANGLSEAAGSSNPYCVLEMDEPPQKYQSSTQKNTSNPFWDEHFLF----- 52
Query: 376 HQLKGST--LHFVVF 388
+L ++ L F V+
Sbjct: 53 -ELSPNSKELLFEVY 66
Score = 32.0 bits (73), Expect = 0.31
Identities = 20/67 (29%), Positives = 33/67 (49%), Gaps = 8/67 (11%)
Query: 518 TGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNLDSVSLELLLLDW 577
G ++PY + + Q K ++ +K T NP ++E F+FE L S ELL +
Sbjct: 15 AGSSNPYCVLEMDEPPQ---KYQSSTQKNTSNPFWDEHFLFE-----LSPNSKELLFEVY 66
Query: 578 DRVTKNE 584
D K++
Sbjct: 67 DNGKKSD 73
>gnl|CDD|176021 cd08375, C2_Intersectin, C2 domain present in Intersectin. A
single instance of the C2 domain is located C terminally
in the intersectin protein. Intersectin functions as a
scaffolding protein, providing a link between the actin
cytoskeleton and the components of endocytosis and plays
a role in signal transduction. In addition to C2,
intersectin contains several additional domains
including: Eps15 homology domains, SH3 domains, a RhoGEF
domain, and a PH domain. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. The members here have topology
I.
Length = 136
Score = 42.4 bits (100), Expect = 1e-04
Identities = 28/82 (34%), Positives = 42/82 (51%), Gaps = 6/82 (7%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L+V +++ RDL + +G SDPY +V + Q+ KT+V+ T NP +N F
Sbjct: 17 LMVVIVEGRDLKPCN-SNGKSDPYCEVSM--GSQEHKTKVVSDTLNPKWNSSMQF---FV 70
Query: 376 HQLKGSTLHFVVFSFDRYSRDD 397
L+ L VF D +S DD
Sbjct: 71 KDLEQDVLCITVFDRDFFSPDD 92
Score = 39.3 bits (92), Expect = 0.001
Identities = 26/88 (29%), Positives = 43/88 (48%), Gaps = 7/88 (7%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
R +V+++ R+L + G +DPY +V + + KT V TLNP +N S F V
Sbjct: 16 RLMVVIVEGRDLKPCNSNGKSDPYCEVSM-----GSQEHKTKVVSDTLNPKWNSSMQFFV 70
Query: 561 PADNLDSVSLELLLLDWDRVTKNEVIGR 588
D L + + D D + ++ +GR
Sbjct: 71 KDLEQD--VLCITVFDRDFFSPDDFLGR 96
>gnl|CDD|176017 cd04052, C2B_Tricalbin-like, C2 domain second repeat present in
Tricalbin-like proteins. 5 to 6 copies of the C2 domain
are present in Tricalbin, a yeast homolog of
Synaptotagmin, which is involved in membrane trafficking
and sorting. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the second C2
repeat, C2B, and has a type-II topology.
Length = 111
Score = 41.4 bits (98), Expect = 1e-04
Identities = 27/104 (25%), Positives = 42/104 (40%), Gaps = 26/104 (25%)
Query: 324 RDLFIKDTPSGSSDPYVKVHLLPDKQKVK-TRVLRKTRNPIYNEEFTFTGITPHQLKGST 382
+ L ++ +G PY +++L + + V TRV +KT NP +N
Sbjct: 1 KGLDTSESKTGLLSPYAELYL--NGKLVYTTRVKKKTNNPSWNAST-------------- 44
Query: 383 LHFVVFSFDRYSRDDIGSTLHFVVFSFDRYSRDDIVGEVFYSLQ 426
F+V D S + VV DR D ++G V SL
Sbjct: 45 -EFLV-------TDRRKSRVTVVVKD-DRDRHDPVLGSVSISLN 79
Score = 39.5 bits (93), Expect = 6e-04
Identities = 28/79 (35%), Positives = 40/79 (50%), Gaps = 8/79 (10%)
Query: 510 RNLPK-MDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNLDSV 568
+ L TGL PY ++YL G+ V T VKK+T NP +N S F V D S
Sbjct: 1 KGLDTSESKTGLLSPYAELYL--NGKLV--YTTRVKKKTNNPSWNASTEFLVT-DRRKSR 55
Query: 569 SLELLLLDWDRVTKNEVIG 587
+ +++ D DR + V+G
Sbjct: 56 -VTVVVKD-DRDRHDPVLG 72
>gnl|CDD|175988 cd04021, C2_E3_ubiquitin_ligase, C2 domain present in E3 ubiquitin
ligase. E3 ubiquitin ligase is part of the
ubiquitylation mechanism responsible for controlling
surface expression of membrane proteins. The sequential
action of several enzymes are involved:
ubiquitin-activating enzyme E1, ubiquitin-conjugating
enzyme E2, and ubiquitin-protein ligase E3 which is
responsible for substrate recognition and promoting the
transfer of ubiquitin to the target protein. E3
ubiquitin ligase is composed of an N-terminal C2 domain,
4 WW domains, and a HECTc domain. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 125
Score = 41.5 bits (98), Expect = 1e-04
Identities = 27/58 (46%), Positives = 32/58 (55%), Gaps = 8/58 (13%)
Query: 333 SGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFS 389
S DPYV+V D Q KT V +KT NP +NE FT +TP STL F V+S
Sbjct: 19 SFKPDPYVEV--TVDGQPPKKTEVSKKTSNPKWNEHFTVL-VTPQ----STLEFKVWS 69
Score = 30.7 bits (70), Expect = 0.86
Identities = 18/35 (51%), Positives = 21/35 (60%), Gaps = 4/35 (11%)
Query: 522 DPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESF 556
DPYV+V GQ KKT V K+T NP +NE F
Sbjct: 23 DPYVEV--TVDGQ--PPKKTEVSKKTSNPKWNEHF 53
>gnl|CDD|176064 cd08682, C2_Rab11-FIP_classI, C2 domain found in Rab11-family
interacting proteins (FIP) class I. Rab GTPases recruit
various effector proteins to organelles and vesicles.
Rab11-family interacting proteins (FIPs) are involved in
mediating the role of Rab11. FIPs can be divided into
three classes: class I FIPs (Rip11a, Rip11b, RCP, and
FIP2) which contain a C2 domain after N-terminus of the
protein, class II FIPs (FIP3 and FIP4) which contain two
EF-hands and a proline rich region, and class III FIPs
(FIP1) which exhibits no homology to known protein
domains. All FIP proteins contain a highly conserved,
20-amino acid motif at the C-terminus of the protein,
known as Rab11/25 binding domain (RBD). Class I FIPs
are thought to bind to endocytic membranes via their C2
domain, which interacts directly with phospholipids.
Class II FIPs do not have any membrane binding domains
leaving much to speculate about the mechanism involving
FIP3 and FIP4 interactions with endocytic membranes. The
members in this CD are class I FIPs. The exact function
of the Rab11 and FIP interaction is unknown, but there
is speculation that it involves the role of forming a
targeting complex that recruits a group of proteins
involved in membrane transport to organelles. The C2
domain was first identified in PKC. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 126
Score = 40.9 bits (96), Expect = 2e-04
Identities = 22/55 (40%), Positives = 32/55 (58%), Gaps = 3/55 (5%)
Query: 317 VVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFT 371
VTV++ R L K SG++D YV + L K+K T V KT +P++ EE +F
Sbjct: 2 QVTVLQARGLLCK-GKSGTNDAYVIIQL--GKEKYSTSVKEKTTSPVWKEECSFE 53
Score = 31.7 bits (72), Expect = 0.39
Identities = 34/120 (28%), Positives = 53/120 (44%), Gaps = 23/120 (19%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKK--THVKKRTLNPVYNESFVFEVP 561
+ VL+AR L +G D YV + ++ K+K T VK++T +PV+ E FE+P
Sbjct: 3 VTVLQARGLLCKGKSGTNDAYVII-------QLGKEKYSTSVKEKTTSPVWKEECSFELP 55
Query: 562 ---ADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSSGTALTHWTDVCNSPRRQIAEW 618
+ N + +L+L V+ R LG DK G D+ R+ W
Sbjct: 56 GLLSGNGNRATLQL-----------TVMHRNLLGLDKFLGQVSIPLNDLDEDKGRRRTRW 104
>gnl|CDD|176072 cd08690, C2_Freud-1, C2 domain found in 5' repressor element under
dual repression binding protein-1 (Freud-1). Freud-1 is
a novel calcium-regulated repressor that negatively
regulates basal 5-HT1A receptor expression in neurons.
It may also play a role in the altered regulation of
5-HT1A receptors associated with anxiety or major
depression. Freud-1 contains two DM-14 basic repeats, a
helix-loop-helix DNA binding domain, and a C2 domain.
The Freud-1 C2 domain is thought to be calcium
insensitive and it lacks several acidic residues that
mediate calcium binding of the PKC C2 domain. In
addition, it contains a poly-basic insert that is not
present in calcium-dependent C2 domains and may function
as a nuclear localization signal. C2 domains fold into
an 8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-II topology.
Length = 155
Score = 41.5 bits (98), Expect = 3e-04
Identities = 33/128 (25%), Positives = 52/128 (40%), Gaps = 29/128 (22%)
Query: 313 ENVLVVTVIKCRDLFIKDTPSGSS----DPYVKVHL-LP--DKQKVKTRVLRKTRNPIYN 365
++ + +T+++C + PSG + D YVK P + Q KT ++ T +P YN
Sbjct: 1 DSSIELTIVRCIGI---PLPSGWNPKDLDTYVKFEFPYPNEEPQSGKTSTIKDTNSPEYN 57
Query: 366 EEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDIGSTLHFVVFS---FDRYSRDDIVGEVF 422
E F H+ SF R + L F V+ F R D ++G
Sbjct: 58 ESFKLNINRKHR-----------SFQRVFKR---HGLKFEVYHKGGFLR--SDKLLGTAQ 101
Query: 423 YSLQSFET 430
L+ ET
Sbjct: 102 VKLEPLET 109
Score = 39.2 bits (92), Expect = 0.001
Identities = 20/58 (34%), Positives = 23/58 (39%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
TIV LP D YVK Y + KT K T +P YNESF +
Sbjct: 7 TIVRCIGIPLPSGWNPKDLDTYVKFEFPYPNEEPQSGKTSTIKDTNSPEYNESFKLNI 64
>gnl|CDD|176010 cd04045, C2C_Tricalbin-like, C2 domain third repeat present in
Tricalbin-like proteins. 5 to 6 copies of the C2 domain
are present in Tricalbin, a yeast homolog of
Synaptotagmin, which is involved in membrane trafficking
and sorting. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the third C2
repeat, C2C, and has a type-II topology.
Length = 120
Score = 40.7 bits (96), Expect = 3e-04
Identities = 25/86 (29%), Positives = 48/86 (55%), Gaps = 7/86 (8%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNL 565
+ KA +L ++ G DPYV+V + + K +T TLNPV++E V + N
Sbjct: 7 IRKANDLKNLEGVGKIDPYVRVLV----NGIVKGRTVTISNTLNPVWDEVLYVPVTSPN- 61
Query: 566 DSVSLELLLLDWDRVTKNEVIGRLDL 591
++LE ++D+++V K+ +G +++
Sbjct: 62 QKITLE--VMDYEKVGKDRSLGSVEI 85
Score = 35.6 bits (83), Expect = 0.013
Identities = 15/44 (34%), Positives = 24/44 (54%), Gaps = 1/44 (2%)
Query: 334 GSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQ 377
G DPYV+V L+ K +T + T NP+++E +P+Q
Sbjct: 20 GKIDPYVRV-LVNGIVKGRTVTISNTLNPVWDEVLYVPVTSPNQ 62
>gnl|CDD|176062 cd08680, C2_Kibra, C2 domain found in Human protein Kibra. Kibra
is thought to be a regulator of the Salvador (Sav)/Warts
(Wts)/Hippo (Hpo) (SWH) signaling network, which limits
tissue growth by inhibiting cell proliferation and
promoting apoptosis. The core of the pathway consists of
a MST and LATS family kinase cascade that ultimately
phosphorylates and inactivates the YAP/Yorkie (Yki)
transcription coactivator. The FERM domain proteins
Merlin (Mer) and Expanded (Ex) are part of the upstream
regulation controlling pathway mechanism. Kibra
colocalizes and associates with Mer and Ex and is
thought to transduce an extracellular signal via the SWH
network. The apical scaffold machinery that contains
Hpo, Wts, and Ex recruits Yki to the apical membrane
facilitating its inhibitory phosphorlyation by Wts.
Since Kibra associates with Ex and is apically located
it is hypothesized that KIBRA is part of the scaffold,
helps in the Hpo/Wts complex, and helps recruit Yki for
inactivation that promotes SWH pathway activity. Kibra
contains two amino-terminal WW domains, an internal
C2-like domain, and a carboxy-terminal glutamic
acid-rich stretch. The C2 domain was first identified
in PKC. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions.
Length = 124
Score = 40.3 bits (95), Expect = 4e-04
Identities = 27/104 (25%), Positives = 48/104 (46%), Gaps = 12/104 (11%)
Query: 302 QIFFKIKYQEKENVLVVTVIKCRD---LFIKDTPSGSSDPYVKVHLLPDKQKV----KTR 354
Q+ ++Y ++ LV++V + R+ L I + +S YV+V LLP +T+
Sbjct: 2 QVQIGLRYDSGDSSLVISVEQLRNLSALSIPE----NSKVYVRVALLPCSSSTSCLFRTK 57
Query: 355 VLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYSRDDI 398
L P++NE F I+ +L TL V S +++
Sbjct: 58 ALEDQDKPVFNEVFRVP-ISSTKLYQKTLQVDVCSVGPDQQEEC 100
Score = 32.2 bits (74), Expect = 0.26
Identities = 19/93 (20%), Positives = 37/93 (39%), Gaps = 17/93 (18%)
Query: 489 ILLSLCWQPAANRFTIVVLKARNLPKMDVTGLADPYVKVYLL---------YKGQRVAKK 539
+ + L + + I V + RNL + + + YV+V LL ++
Sbjct: 3 VQIGLRYDSGDSSLVISVEQLRNLSALSIPENSKVYVRVALLPCSSSTSCLFR------- 55
Query: 540 KTHVKKRTLNPVYNESFVFEVPADNLDSVSLEL 572
T + PV+NE F + + L +L++
Sbjct: 56 -TKALEDQDKPVFNEVFRVPISSTKLYQKTLQV 87
>gnl|CDD|176028 cd08382, C2_Smurf-like, C2 domain present in Smad
ubiquitination-related factor (Smurf)-like proteins. A
single C2 domain is found in Smurf proteins,
C2-WW-HECT-domain E3s, which play an important role in
the downregulation of the TGF-beta signaling pathway.
Smurf proteins also regulate cell shape, motility, and
polarity by degrading small guanosine triphosphatases
(GTPases). C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have type-II
topology.
Length = 123
Score = 39.2 bits (92), Expect = 8e-04
Identities = 21/56 (37%), Positives = 29/56 (51%), Gaps = 6/56 (10%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESF 556
R T+ L A L K D+ L DP+ + + GQ T V K+TL+P +NE F
Sbjct: 3 RLTV--LCADGLAKRDLFRLPDPFAVI-TVDGGQ---THSTDVAKKTLDPKWNEHF 52
Score = 30.0 bits (68), Expect = 1.6
Identities = 22/76 (28%), Positives = 33/76 (43%), Gaps = 12/76 (15%)
Query: 324 RDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQLKGSTL 383
RDLF DP+ + + Q T V +KT +P +NE F T + P S +
Sbjct: 15 RDLF------RLPDPFAVI-TVDGGQTHSTDVAKKTLDPKWNEHFDLT-VGPS----SII 62
Query: 384 HFVVFSFDRYSRDDIG 399
VF ++ + D G
Sbjct: 63 TIQVFDQKKFKKKDQG 78
>gnl|CDD|216108 pfam00769, ERM, Ezrin/radixin/moesin family. This family of
proteins contain a band 4.1 domain (pfam00373), at their
amino terminus. This family represents the rest of these
proteins.
Length = 244
Score = 40.5 bits (95), Expect = 0.001
Identities = 35/153 (22%), Positives = 54/153 (35%), Gaps = 17/153 (11%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE----VSGHTVLGLGLA 146
A + +EEY+ +L KLK+ E A+ EK +L++E RLE S L
Sbjct: 24 AQKELEEYEETALELEEKLKQEEEEAQLLEKKADELEEENRRLEEEAAASEEERERLEAE 83
Query: 147 GLVFAATVCLATCYCRRRTSPLE--AKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPS 204
A V ++ + ++L +Q +R AAA +
Sbjct: 84 VDEATAEVAKLEEEREKKEAETRQLQQELREAQEAHERARQELLEAAA-----------A 132
Query: 205 PTYATPVASLVNSPTGSTNSNNGAGSNSHSPIQ 237
PT VA+ VN + N S
Sbjct: 133 PTAPPHVAAPVNGEQLEPDDNGEEASADLETDP 165
Score = 28.9 bits (65), Expect = 6.5
Identities = 11/54 (20%), Positives = 25/54 (46%), Gaps = 7/54 (12%)
Query: 90 VANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTV-------KKLQKEVDRLEVS 136
A + +E + +++Q+ ++ A+ E E+T K+ ++E LE
Sbjct: 2 EAEREQQELEERMEQMEEDMRRAQKELEEYEETALELEEKLKQEEEEAQLLEKK 55
>gnl|CDD|176045 cd08400, C2_Ras_p21A1, C2 domain present in RAS p21 protein
activator 1 (RasA1). RasA1 is a GAP1 (GTPase activating
protein 1), a Ras-specific GAP member, which suppresses
Ras function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. RasA1 contains a C2 domain, a
Ras-GAP domain, a pleckstrin homology (PH)-like domain,
a SH3 domain, and 2 SH2 domains. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-I
topology.
Length = 126
Score = 38.5 bits (90), Expect = 0.002
Identities = 25/85 (29%), Positives = 40/85 (47%), Gaps = 12/85 (14%)
Query: 506 VLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFE-VPADN 564
VL+A LP V PY + L V +T V++ NPV++E FVF+ +P
Sbjct: 10 VLEAHKLPVKHVP---HPYCVISL----NEVKVARTKVRE-GPNPVWSEEFVFDDLPP-- 59
Query: 565 LDSVSLELLLLDWDRVTKNEVIGRL 589
D S + L + + +K+ I +
Sbjct: 60 -DVNSFTISLSNKAKRSKDSEIAEV 83
Score = 29.6 bits (67), Expect = 2.2
Identities = 18/60 (30%), Positives = 32/60 (53%), Gaps = 6/60 (10%)
Query: 316 LVVTVIKCRDLFIKDTPSGSSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITP 375
L + V++ L +K P PY + L + + +T+V R+ NP+++EEF F + P
Sbjct: 6 LQLNVLEAHKLPVKHVPH----PYCVISL-NEVKVARTKV-REGPNPVWSEEFVFDDLPP 59
>gnl|CDD|176041 cd08395, C2C_Munc13, C2 domain third repeat in Munc13 (mammalian
uncoordinated) proteins. C2-like domains are thought to
be involved in phospholipid binding in a Ca2+
independent manner in both Unc13 and Munc13.
Caenorabditis elegans Unc13 has a central domain with
sequence similarity to PKC, which includes C1 and
C2-related domains. Unc13 binds phorbol esters and DAG
with high affinity in a phospholipid manner. Mutations
in Unc13 results in abnormal neuronal connections and
impairment in cholinergic neurotransmission in the
nematode. Munc13 is the mammalian homolog which are
expressed in the brain. There are 3 isoforms (Munc13-1,
-2, -3) and are thought to play a role in
neurotransmitter release and are hypothesized to be
high-affinity receptors for phorbol esters. Unc13 and
Munc13 contain both C1 and C2 domains. There are two C2
related domains present, one central and one at the
carboxyl end. Munc13-1 contains a third C2-like domain.
Munc13 interacts with syntaxin, synaptobrevin, and
synaptotagmin suggesting a role for these as scaffolding
proteins.C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions. This cd contains the third C2 repeat, C2C, and
has a type-II topology.
Length = 120
Score = 37.4 bits (87), Expect = 0.003
Identities = 27/90 (30%), Positives = 47/90 (52%), Gaps = 8/90 (8%)
Query: 503 TIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKK----THVKKRTLNPVYNESFVF 558
T+ V+ A +L K TG+ P+V+V L+ G ++ KK T K +P YNE+F F
Sbjct: 3 TVKVVAANDL-KWQTTGMFRPFVEVNLI--GPHLSDKKRKFATKSKNNNWSPKYNETFQF 59
Query: 559 EVPA-DNLDSVSLELLLLDWDRVTKNEVIG 587
+ D+ +S L + + D+ + ++G
Sbjct: 60 ILGNEDDPESYELHICVKDYCFARDDRLVG 89
Score = 33.9 bits (78), Expect = 0.058
Identities = 26/85 (30%), Positives = 37/85 (43%), Gaps = 9/85 (10%)
Query: 318 VTVIKCRDLFIKDTPSGSSDPYVKVHLL-PDKQKVKTRVLRKTRN----PIYNEEFTFTG 372
V V+ DL K +G P+V+V+L+ P K + K++N P YNE F F
Sbjct: 4 VKVVAANDL--KWQTTGMFRPFVEVNLIGPHLSDKKRKFATKSKNNNWSPKYNETFQFIL 61
Query: 373 ITPHQLKGSTLHFVV--FSFDRYSR 395
+ LH V + F R R
Sbjct: 62 GNEDDPESYELHICVKDYCFARDDR 86
>gnl|CDD|175981 cd04014, C2_PKC_epsilon, C2 domain in Protein Kinase C (PKC)
epsilon. A single C2 domain is found in PKC epsilon.
The PKC family of serine/threonine kinases regulates
apoptosis, proliferation, migration, motility,
chemo-resistance, and differentiation. There are 3
groups: group 1 (alpha, betaI, beta II, gamma) which
require phospholipids and calcium, group 2 (delta,
epsilon, theta, eta) which do not require calcium for
activation, and group 3 (xi, iota/lambda) which are
atypical and can be activated in the absence of
diacylglycerol and calcium. C2 domains fold into an
8-standed beta-sandwich that can adopt 2 structural
arrangements: Type I and Type II, distinguished by a
circular permutation involving their N- and C-terminal
beta strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members here have a type-II
topology.
Length = 132
Score = 37.3 bits (87), Expect = 0.005
Identities = 16/41 (39%), Positives = 22/41 (53%), Gaps = 4/41 (9%)
Query: 520 LADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
L DPYV + + + K T K +T +PV+NE F EV
Sbjct: 34 LLDPYVSIDV--DDTHIGK--TSTKPKTNSPVWNEEFTTEV 70
Score = 34.6 bits (80), Expect = 0.049
Identities = 17/49 (34%), Positives = 25/49 (51%), Gaps = 3/49 (6%)
Query: 337 DPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLH 384
DPYV + + D + KT KT +P++NEEFT L+ + H
Sbjct: 36 DPYVSIDV--DDTHIGKTSTKPKTNSPVWNEEFTTEVHNGRNLELTVFH 82
>gnl|CDD|179699 PRK03992, PRK03992, proteasome-activating nucleotidase;
Provisional.
Length = 389
Score = 38.7 bits (91), Expect = 0.007
Identities = 15/40 (37%), Positives = 28/40 (70%)
Query: 94 RVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRL 133
R E + QI+QL +KL++ EA E E+ +++L+ E+++L
Sbjct: 9 RNSELEEQIRQLELKLRDLEAENEKLERELERLKSELEKL 48
>gnl|CDD|176014 cd04049, C2_putative_Elicitor-responsive_gene, C2 domain present in
the putative elicitor-responsive gene. In plants
elicitor-responsive proteins are triggered in response
to specific elicitor molecules such as glycolproteins,
peptides, carbohydrates and lipids. A host of defensive
responses are also triggered resulting in localized cell
death. Antimicrobial secondary metabolites, such as
phytoalexins, or defense-related proteins, including
pathogenesis-related (PR) proteins are also produced.
There is a single C2 domain present here. C2 domains
fold into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. Members have a type-II
topology.
Length = 124
Score = 36.2 bits (84), Expect = 0.011
Identities = 26/77 (33%), Positives = 38/77 (49%), Gaps = 5/77 (6%)
Query: 328 IKDT-PSGSSDPYVKVHLLPDKQKVKTRVLR-KTRNPIYNEEFTFTGITPHQLKGSTLHF 385
++DT G DPYV + Q+ K++V + RNP +NE+F FT P + L
Sbjct: 13 LQDTDFLGKIDPYVIIQC--RTQERKSKVAKGDGRNPEWNEKFKFTVEYPGWGGDTKLIL 70
Query: 386 VVFSFDRYSRDD-IGST 401
+ D +S DD IG
Sbjct: 71 RIMDKDNFSDDDFIGEA 87
Score = 34.6 bits (80), Expect = 0.041
Identities = 24/85 (28%), Positives = 38/85 (44%), Gaps = 5/85 (5%)
Query: 504 IVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVP-A 562
++++ A+ L D G DPYV + + Q +K K NP +NE F F V
Sbjct: 5 VLLISAKGLQDTDFLGKIDPYVI--IQCRTQE--RKSKVAKGDGRNPEWNEKFKFTVEYP 60
Query: 563 DNLDSVSLELLLLDWDRVTKNEVIG 587
L L ++D D + ++ IG
Sbjct: 61 GWGGDTKLILRIMDKDNFSDDDFIG 85
>gnl|CDD|176059 cd08677, C2A_Synaptotagmin-13, C2 domain. Synaptotagmin is a
membrane-trafficking protein characterized by a
N-terminal transmembrane region, a linker, and 2
C-terminal C2 domains. Synaptotagmin 13, a member of
class 6 synaptotagmins, is located in the brain. It
functions are unknown. It, like synaptotagmins 8 and 12,
does not have any consensus Ca2+ binding sites.
Previously all synaptotagmins were thought to be calcium
sensors in the regulation of neurotransmitter release
and hormone secretion, but it has been shown that not
all of them bind calcium. Of the 17 identified
synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10).
The function of the two C2 domains that bind calcium
are: regulating the fusion step of synaptic vesicle
exocytosis (C2A) and binding to
phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the
absence of calcium ions and to phosphatidylinositol
bisphosphate (PIP2) in their presence (C2B). C2B also
regulates also the recycling step of synaptic vesicles.
C2 domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This CD contains the first C2
repeat, C2A, and has a type-I topology.
Length = 118
Score = 35.3 bits (81), Expect = 0.019
Identities = 17/58 (29%), Positives = 28/58 (48%)
Query: 540 KTHVKKRTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRLDLGGDKSS 597
+T +KK L+ + E VF +P + +L L L DR +++ +G L L S
Sbjct: 50 QTALKKLALHTQWEEELVFPLPEEESLDGTLTLTLRCCDRFSRHSTLGELRLKLADVS 107
>gnl|CDD|176046 cd08401, C2A_RasA2_RasA3, C2 domain first repeat present in RasA2
and RasA3. RasA2 and RasA3 are GAP1s (GTPase activating
protein 1s ), Ras-specific GAP members, which suppresses
Ras function by enhancing the GTPase activity of Ras
proteins resulting in the inactive GDP-bound form of
Ras. In this way it can control cellular proliferation
and differentiation. RasA2 and RasA3 are both inositol
1,3,4,5-tetrakisphosphate-binding proteins and contain
an N-terminal C2 domain, a Ras-GAP domain, a
pleckstrin-homology (PH) domain which localizes it to
the plasma membrane, and Bruton's Tyrosine Kinase (BTK)
a zinc binding domain. C2 domains fold into an 8-standed
beta-sandwich that can adopt 2 structural arrangements:
Type I and Type II, distinguished by a circular
permutation involving their N- and C-terminal beta
strands. Many C2 domains are Ca2+-dependent
membrane-targeting modules that bind a wide variety of
substances including bind phospholipids, inositol
polyphosphates, and intracellular proteins. Most C2
domain proteins are either signal transduction enzymes
that contain a single C2 domain, such as protein kinase
C, or membrane trafficking proteins which contain at
least two C2 domains, such as synaptotagmin 1. However,
there are a few exceptions to this including RIM
isoforms and some splice variants of piccolo/aczonin and
intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions. This cd contains the first C2
repeat, C2A, and has a type-I topology.
Length = 121
Score = 33.9 bits (78), Expect = 0.055
Identities = 14/50 (28%), Positives = 26/50 (52%), Gaps = 3/50 (6%)
Query: 540 KTHVKKRTLNPVYNESFVFEVPADNLDSVSLELLLLDWDRVTKNEVIGRL 589
+T +++L P + E F FE+P L + D D + ++ VIG++
Sbjct: 37 RTKTVEKSLCPFFGEDFYFEIP---RTFRHLSFYIYDRDVLRRDSVIGKV 83
Score = 29.7 bits (67), Expect = 1.9
Identities = 19/66 (28%), Positives = 33/66 (50%), Gaps = 7/66 (10%)
Query: 332 PSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSF 390
P+ D Y V+L D+++V +T+ + K+ P + E+F F P + L F ++
Sbjct: 18 PNKMRDCYCTVNL--DQEEVFRTKTVEKSLCPFFGEDFYFE--IPRTFR--HLSFYIYDR 71
Query: 391 DRYSRD 396
D RD
Sbjct: 72 DVLRRD 77
>gnl|CDD|178585 PLN03008, PLN03008, Phospholipase D delta.
Length = 868
Score = 35.8 bits (82), Expect = 0.076
Identities = 21/66 (31%), Positives = 36/66 (54%), Gaps = 5/66 (7%)
Query: 335 SSDPYVKVHLLPDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRYS 394
+SDPYV V ++P +TRVL+ ++ P+++E+F + P + L F V D +
Sbjct: 76 TSDPYVTV-VVPQATLARTRVLKNSQEPLWDEKFNISIAHPF----AYLEFQVKDDDVFG 130
Query: 395 RDDIGS 400
IG+
Sbjct: 131 AQIIGT 136
>gnl|CDD|178538 PLN02952, PLN02952, phosphoinositide phospholipase C.
Length = 599
Score = 35.7 bits (82), Expect = 0.085
Identities = 20/66 (30%), Positives = 32/66 (48%), Gaps = 6/66 (9%)
Query: 337 DPYVKVHLL---PDKQKVKTRVLRKTRNPIYNEEFTFTGITPHQLKGSTLHFVVFSFDRY 393
D Y K++++ D K KT+++ P +NEEF+F P + L V +D
Sbjct: 498 DFYTKMYIVGVPADNAKKKTKIIEDNWYPAWNEEFSFPLTVPEL---ALLRIEVREYDMS 554
Query: 394 SRDDIG 399
+DD G
Sbjct: 555 EKDDFG 560
Score = 30.4 bits (68), Expect = 3.1
Identities = 16/51 (31%), Positives = 26/51 (50%)
Query: 522 DPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEVPADNLDSVSLEL 572
D Y K+Y++ AKKKT + + P +NE F F + L + +E+
Sbjct: 498 DFYTKMYIVGVPADNAKKKTKIIEDNWYPAWNEEFSFPLTVPELALLRIEV 548
>gnl|CDD|203138 pfam04977, DivIC, Septum formation initiator. DivIC from B.
subtilis is necessary for both vegetative and
sporulation septum formation. These proteins are mainly
composed of an amino terminal coiled-coil.
Length = 80
Score = 32.5 bits (75), Expect = 0.090
Identities = 11/36 (30%), Positives = 19/36 (52%)
Query: 99 KRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
++I L +L + +A E E VK L+ + D +E
Sbjct: 23 NQEIAALQAELAKLKAENEELEAEVKDLKSDPDYIE 58
>gnl|CDD|236776 PRK10856, PRK10856, cytoskeletal protein RodZ; Provisional.
Length = 331
Score = 35.0 bits (81), Expect = 0.099
Identities = 24/93 (25%), Positives = 30/93 (32%), Gaps = 2/93 (2%)
Query: 202 SPSPTYATPVASLVNSPTGSTNSNNG-AGSNSHSPIQPCVALP-GTVVITENEKAAPLVL 259
+ T P A + +PT S A + + P Q V P V T A
Sbjct: 170 TDPATTPAPAAPVDTTPTNSQTPAVATAPAPAVDPQQNAVVAPSQANVDTAATPAPAAPA 229
Query: 260 GVAGPTTAGNGPAANGTDSDDSCALVNKETVDC 292
G A T + D ALV T DC
Sbjct: 230 TPDGAAPLPTDQAGVSTPAADPNALVMNFTADC 262
>gnl|CDD|109486 pfam00430, ATP-synt_B, ATP synthase B/B' CF(0). Part of the CF(0)
(base unit) of the ATP synthase. The base unit is
thought to translocate protons through membrane (inner
membrane in mitochondria, thylakoid membrane in plants,
cytoplasmic membrane in bacteria). The B subunits are
thought to interact with the stalk of the CF(1)
subunits. This domain should not be confused with the ab
CF(1) proteins (in the head of the ATP synthase) which
are found in pfam00006.
Length = 132
Score = 33.4 bits (77), Expect = 0.12
Identities = 12/53 (22%), Positives = 25/53 (47%), Gaps = 5/53 (9%)
Query: 91 ANQRVEEYKRQIKQLAVK----LKEAEARA-EFAEKTVKKLQKEVDRLEVSGH 138
A + E ++Q+ Q + + A+ A + E+ + + QK+ +RL S
Sbjct: 49 AAALLAEAEQQLAQARAEASEIINNAKKEAQKLKEEILAEAQKDAERLLESAR 101
>gnl|CDD|218661 pfam05622, HOOK, HOOK protein. This family consists of several
HOOK1, 2 and 3 proteins from different eukaryotic
organisms. The different members of the human gene
family are HOOK1, HOOK2 and HOOK3. Different domains
have been identified in the three human HOOK proteins,
and it was demonstrated that the highly conserved
NH2-domain mediates attachment to microtubules, whereas
the central coiled-coil motif mediates homodimerisation
and the more divergent C-terminal domains are involved
in binding to specific organelles (organelle-binding
domains). It has been demonstrated that endogenous HOOK3
binds to Golgi membranes, whereas both HOOK1 and HOOK2
are localised to discrete but unidentified cellular
structures. In mice the Hook1 gene is predominantly
expressed in the testis. Hook1 function is necessary for
the correct positioning of microtubular structures
within the haploid germ cell. Disruption of Hook1
function in mice causes abnormal sperm head shape and
fragile attachment of the flagellum to the sperm head.
Length = 713
Score = 35.2 bits (81), Expect = 0.13
Identities = 19/47 (40%), Positives = 29/47 (61%), Gaps = 7/47 (14%)
Query: 94 RVEEYKRQIKQLAVKLKEAEARA---EFAEKTVKK----LQKEVDRL 133
++E YKRQ+++L KL E +A EF K +++ LQKE +RL
Sbjct: 364 QLETYKRQVQELHAKLSEESKKADKLEFEYKRLEEKLEALQKEKERL 410
>gnl|CDD|144972 pfam01576, Myosin_tail_1, Myosin tail. The myosin molecule is a
multi-subunit complex made up of two heavy chains and
four light chains it is a fundamental contractile
protein found in all eukaryote cell types. This family
consists of the coiled-coil myosin heavy chain tail
region. The coiled-coil is composed of the tail from two
molecules of myosin. These can then assemble into the
macromolecular thick filament. The coiled-coil region
provides the structural backbone the thick filament.
Length = 859
Score = 34.6 bits (80), Expect = 0.16
Identities = 18/47 (38%), Positives = 28/47 (59%), Gaps = 5/47 (10%)
Query: 93 QRVEEYK----RQIKQLAVKLKEAEARA-EFAEKTVKKLQKEVDRLE 134
Q +E + Q+K+L V+L EAEA A + +K ++KL+ V LE
Sbjct: 710 QHLERLRKQLESQVKELQVRLDEAEAAALKGGKKMIQKLEARVRELE 756
Score = 33.9 bits (78), Expect = 0.31
Identities = 18/50 (36%), Positives = 26/50 (52%), Gaps = 7/50 (14%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFA-------EKTVKKLQKEVDRLEV 135
R EE + K+L K+ E E AE A EKT +LQ E++ L++
Sbjct: 314 LRAEELEELKKKLNQKISELEEAAEAANAKCDSLEKTKSRLQSELEDLQI 363
Score = 29.6 bits (67), Expect = 5.9
Identities = 13/49 (26%), Positives = 26/49 (53%), Gaps = 14/49 (28%)
Query: 92 NQRVEEYKRQI--------------KQLAVKLKEAEARAEFAEKTVKKL 126
+++ YKRQ+ ++ +L++AE RA+ AE+++ KL
Sbjct: 805 QAKIKTYKRQLEEAEEVAQINLSKYRKAQRELEDAEERADTAERSLNKL 853
Score = 29.2 bits (66), Expect = 8.2
Identities = 13/60 (21%), Positives = 26/60 (43%), Gaps = 14/60 (23%)
Query: 90 VANQRVEEYKRQIKQLAVKLKEA------------EARAEF--AEKTVKKLQKEVDRLEV 135
AN+ E ++ +K+ ++KE +AR + AE+ L+ E++ L
Sbjct: 564 HANKANAEAQKNVKKYQQQVKELQTQVEEEQRAREDAREQLAVAERRATALEAELEELRS 623
>gnl|CDD|175998 cd04032, C2_Perforin, C2 domain of Perforin. Perforin contains a
single copy of a C2 domain in its C-terminus and plays a
role in lymphocyte-mediated cytotoxicity. Mutations in
perforin leads to familial hemophagocytic
lymphohistiocytosis type 2. The function of perforin is
calcium dependent and the C2 domain is thought to confer
this binding to target cell membranes. C2 domains fold
into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 127
Score = 32.2 bits (74), Expect = 0.25
Identities = 27/83 (32%), Positives = 36/83 (43%), Gaps = 17/83 (20%)
Query: 501 RFTIVVLKARNLPKMDVTGLADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
T+ VL+A L D D YVKV+ + GQ K+T V NP +N +F
Sbjct: 29 TLTVTVLRATGL-WGDYFTSTDGYVKVF--FGGQE---KRTEVIWNNNNPRWNATF---- 78
Query: 561 PADNLDSVSL----ELLLLDWDR 579
+ SV L +L WDR
Sbjct: 79 ---DFGSVELSPGGKLRFEVWDR 98
>gnl|CDD|233758 TIGR02169, SMC_prok_A, chromosome segregation protein SMC,
primarily archaeal type. SMC (structural maintenance of
chromosomes) proteins bind DNA and act in organizing and
segregating chromosomes for partition. SMC proteins are
found in bacteria, archaea, and eukaryotes. It is found
in a single copy and is homodimeric in prokaryotes, but
six paralogs (excluded from this family) are found in
eukarotes, where SMC proteins are heterodimeric. This
family represents the SMC protein of archaea and a few
bacteria (Aquifex, Synechocystis, etc); the SMC of other
bacteria is described by TIGR02168. The N- and
C-terminal domains of this protein are well conserved,
but the central hinge region is skewed in composition
and highly divergent [Cellular processes, Cell division,
DNA metabolism, Chromosome-associated proteins].
Length = 1164
Score = 34.3 bits (79), Expect = 0.25
Identities = 13/42 (30%), Positives = 22/42 (52%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ +E + ++L +L+E EA E + L+KE D LE
Sbjct: 854 KEIENLNGKKEELEEELEELEAALRDLESRLGDLKKERDELE 895
Score = 28.9 bits (65), Expect = 9.8
Identities = 11/44 (25%), Positives = 22/44 (50%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
Q E+ K ++++L L E E + +K+L+ ++ LE
Sbjct: 728 LEQEEEKLKERLEELEEDLSSLEQEIENVKSELKELEARIEELE 771
>gnl|CDD|218681 pfam05667, DUF812, Protein of unknown function (DUF812). This
family consists of several eukaryotic proteins of
unknown function.
Length = 536
Score = 34.0 bits (78), Expect = 0.25
Identities = 10/39 (25%), Positives = 19/39 (48%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVD 131
+EE +IK LA K+K+ + ++L++E
Sbjct: 284 SSIEEVLSEIKALASKIKQVNEELTTVRQENEELEEEYK 322
>gnl|CDD|175982 cd04015, C2_plant_PLD, C2 domain present in plant phospholipase D
(PLD). PLD hydrolyzes terminal phosphodiester bonds in
diester glycerophospholipids resulting in the
degradation of phospholipids. In vitro PLD transfers
phosphatidic acid to primary alcohols. In plants PLD
plays a role in germination, seedling growth,
phosphatidylinositol metabolism, and changes in
phospholipid composition. There is a single
Ca(2+)/phospholipid-binding C2 domain in PLD. C2 domains
fold into an 8-standed beta-sandwich that can adopt 2
structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 158
Score = 32.7 bits (75), Expect = 0.28
Identities = 15/39 (38%), Positives = 22/39 (56%), Gaps = 3/39 (7%)
Query: 331 TPSGSSDPYVKVHLLPDKQKV-KTRVLRKTRNPIYNEEF 368
+SDPY V L +V +TRV+ + NP++NE F
Sbjct: 53 VGKITSDPYATVDL--AGARVARTRVIENSENPVWNESF 89
Score = 30.7 bits (70), Expect = 1.1
Identities = 18/35 (51%), Positives = 22/35 (62%), Gaps = 4/35 (11%)
Query: 522 DPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESF 556
DPY V L G RVA+ T V + + NPV+NESF
Sbjct: 59 DPYATVDL--AGARVAR--TRVIENSENPVWNESF 89
>gnl|CDD|222417 pfam13851, GAS, Growth-arrest specific micro-tubule binding. This
family is the highly conserved central region of a
number of metazoan proteins referred to as growth-arrest
proteins. In mouse, Gas8 is predominantly a testicular
protein, whose expression is developmentally regulated
during puberty and spermatogenesis. In humans, it is
absent in infertile males who lack the ability to
generate gametes. The localisation of Gas8 in the
motility apparatus of post-meiotic gametocytes and
mature spermatozoa, together with the detection of Gas8
also in cilia at the apical surfaces of epithelial cells
lining the pulmonary bronchi and Fallopian tubes
suggests that the Gas8 protein may have a role in the
functioning of motile cellular appendages. Gas8 is a
microtubule-binding protein localised to regions of
dynein regulation in mammalian cells.
Length = 201
Score = 32.6 bits (75), Expect = 0.34
Identities = 16/47 (34%), Positives = 26/47 (55%), Gaps = 3/47 (6%)
Query: 91 ANQRVEEYKRQIKQLA---VKLKEAEARAEFAEKTVKKLQKEVDRLE 134
A + VEE ++++K LK +AR + EK +K L+ E + LE
Sbjct: 67 AEEEVEELRKKLKDYEKDKQSLKNLKARLKELEKELKNLKWESEVLE 113
>gnl|CDD|176068 cd08686, C2_ABR, C2 domain in the Active BCR (Breakpoint cluster
region) Related protein. The ABR protein is similar to
the breakpoint cluster region protein. It has homology
to guanine nucleotide exchange proteins and
GTPase-activating proteins (GAPs). ABR is expressed
primarily in the brain, but also includes non-neuronal
tissues such as the heart. It has been associated with
human diseases such as Miller-Dieker syndrome in which
mental retardation and malformations of the heart are
present. ABR contains a RhoGEF domain and a PH-like
domain upstream of its C2 domain and a RhoGAP domain
downstream of this domain. A few members also contain a
Bcr-Abl oncoprotein oligomerization domain at the very
N-terminal end. Splice variants of ABR have been
identified. ABR is found in a wide variety of organisms
including chimpanzee, dog, mouse, rat, fruit fly, and
mosquito. The C2 domain was first identified in PKC. C2
domains fold into an 8-standed beta-sandwich that can
adopt 2 structural arrangements: Type I and Type II,
distinguished by a circular permutation involving their
N- and C-terminal beta strands. Many C2 domains are
Ca2+-dependent membrane-targeting modules that bind a
wide variety of substances including bind phospholipids,
inositol polyphosphates, and intracellular proteins.
Most C2 domain proteins are either signal transduction
enzymes that contain a single C2 domain, such as protein
kinase C, or membrane trafficking proteins which contain
at least two C2 domains, such as synaptotagmin 1.
However, there are a few exceptions to this including
RIM isoforms and some splice variants of piccolo/aczonin
and intersectin which only have a single C2 domain. C2
domains with a calcium binding region have negatively
charged residues, primarily aspartates, that serve as
ligands for calcium ions.
Length = 118
Score = 31.3 bits (71), Expect = 0.41
Identities = 14/40 (35%), Positives = 20/40 (50%)
Query: 521 ADPYVKVYLLYKGQRVAKKKTHVKKRTLNPVYNESFVFEV 560
A+ Y + + G V K KT V + T P +NE F E+
Sbjct: 15 ANLYCTLEVDSFGYFVKKAKTRVCRDTTEPNWNEEFEIEL 54
Score = 30.2 bits (68), Expect = 1.1
Identities = 12/19 (63%), Positives = 13/19 (68%)
Query: 350 KVKTRVLRKTRNPIYNEEF 368
K KTRV R T P +NEEF
Sbjct: 32 KAKTRVCRDTTEPNWNEEF 50
>gnl|CDD|224117 COG1196, Smc, Chromosome segregation ATPases [Cell division and
chromosome partitioning].
Length = 1163
Score = 33.5 bits (77), Expect = 0.43
Identities = 11/42 (26%), Positives = 28/42 (66%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ +EE +++I++L +L+E E ++ + +L++E++ LE
Sbjct: 260 EELEEAEKEIEELKSELEELREELEELQEELLELKEEIEELE 301
Score = 33.1 bits (76), Expect = 0.48
Identities = 11/46 (23%), Positives = 26/46 (56%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVS 136
+ +EE + ++ +L +L+E E E ++ +++L+ E + LE
Sbjct: 833 LEEEIEELEEKLDELEEELEELEKELEELKEELEELEAEKEELEDE 878
Score = 32.0 bits (73), Expect = 1.2
Identities = 11/45 (24%), Positives = 27/45 (60%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEV 135
+ EE + ++++L +L E + E + +++L+ +++RLEV
Sbjct: 882 LEEEKEELEEELRELESELAELKEEIEKLRERLEELEAKLERLEV 926
Score = 31.2 bits (71), Expect = 2.3
Identities = 11/44 (25%), Positives = 26/44 (59%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ + + +++QL +L+E E E E+ +++LQ+ ++ LE
Sbjct: 721 LKRELAALEEELEQLQSRLEELEEELEELEEELEELQERLEELE 764
Score = 30.8 bits (70), Expect = 3.0
Identities = 12/43 (27%), Positives = 30/43 (69%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
QR E +++I++L +++E E + + E+ +++L+KE++ L+
Sbjct: 820 EQRRERLEQEIEELEEEIEELEEKLDELEEELEELEKELEELK 862
>gnl|CDD|119241 pfam10721, DUF2514, Protein of unknown function (DUF2514). This
family is conserved in bacteria and some viruses. The
function is not known.
Length = 162
Score = 32.0 bits (73), Expect = 0.44
Identities = 14/54 (25%), Positives = 22/54 (40%), Gaps = 6/54 (11%)
Query: 94 RVEEYKRQIKQLAV------KLKEAEARAEFAEKTVKKLQKEVDRLEVSGHTVL 141
R EE +RQ Q + A A A A+ +L++E D+L +
Sbjct: 53 RAEEQRRQAAQNEAAKDAQEEAAAARADAADADAAAGRLRQEADKLAAAKSCPT 106
>gnl|CDD|221952 pfam13166, AAA_13, AAA domain. This family of domains contain a
P-loop motif that is characteristic of the AAA
superfamily. Many of the proteins in this family are
conjugative transfer proteins. This family includes the
PrrC protein that is thought to be the active component
of the anticodon nuclease.
Length = 713
Score = 33.1 bits (76), Expect = 0.47
Identities = 11/40 (27%), Positives = 21/40 (52%)
Query: 95 VEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
++ Y+++ K L + E + E +K L+KE+ LE
Sbjct: 410 IDAYQKEKKGLEKAINSLEKEIKQLEAEIKALEKEIKELE 449
>gnl|CDD|206034 pfam13863, DUF4200, Domain of unknown function (DUF4200). This
family is found in eukaryotes. It is a coiled-coil
domain of unknwon function.
Length = 126
Score = 31.4 bits (72), Expect = 0.50
Identities = 10/45 (22%), Positives = 25/45 (55%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVS 136
+ + ++ + +K+ K + AE +AE +K K+ ++E+ L+
Sbjct: 45 QESLIKFDKFLKENEAKRRRAEKKAEEEKKLRKEKEEEIKELKAE 89
Score = 30.3 bits (69), Expect = 1.3
Identities = 11/45 (24%), Positives = 27/45 (60%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEV 135
A ++ EE K+ K+ ++KE +A E + ++KL+++++ +
Sbjct: 65 AEKKAEEEKKLRKEKEEEIKELKAELEELKAEIEKLEEKLEEYQP 109
>gnl|CDD|117396 pfam08826, DMPK_coil, DMPK coiled coil domain like. This domain is
found in the myotonic dystrophy protein kinase (DMPK)
and adopts a coiled coil structure. It plays a role in
dimerisation.
Length = 61
Score = 29.8 bits (67), Expect = 0.56
Identities = 15/47 (31%), Positives = 26/47 (55%), Gaps = 4/47 (8%)
Query: 91 ANQRVEEYKRQIK----QLAVKLKEAEARAEFAEKTVKKLQKEVDRL 133
A Q ++E ++K KL+EAEA+ E V++L+K ++ L
Sbjct: 12 AKQSLQEELEKVKAANINFESKLQEAEAKNRELEAEVRQLKKRMEEL 58
>gnl|CDD|202833 pfam03962, Mnd1, Mnd1 family. This family of proteins includes
MND1 from S. cerevisiae. The mnd1 protein forms a
complex with hop2 to promote homologous chromosome
pairing and meiotic double-strand break repair.
Length = 188
Score = 31.8 bits (73), Expect = 0.57
Identities = 16/44 (36%), Positives = 28/44 (63%), Gaps = 1/44 (2%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEV 135
QR+ E + QI++L +E E R E E+ +K+L+KE+ +L+
Sbjct: 82 KQRIAELQAQIEKLKKGREETEERTELLEE-LKQLEKELKKLKA 124
>gnl|CDD|235175 PRK03918, PRK03918, chromosome segregation protein; Provisional.
Length = 880
Score = 32.7 bits (75), Expect = 0.60
Identities = 13/46 (28%), Positives = 28/46 (60%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVS 136
A + +E ++++K+L +L +A EK +++L+KE++ LE
Sbjct: 610 AEKELEREEKELKKLEEELDKAFEELAETEKRLEELRKELEELEKK 655
Score = 31.2 bits (71), Expect = 2.0
Identities = 13/44 (29%), Positives = 25/44 (56%), Gaps = 3/44 (6%)
Query: 94 RVEEYKRQIKQLAVKLKEAE---ARAEFAEKTVKKLQKEVDRLE 134
R+ + +I + ++KE E R E +K +K+L+K ++ LE
Sbjct: 315 RLSRLEEEINGIEERIKELEEKEERLEELKKKLKELEKRLEELE 358
Score = 30.0 bits (68), Expect = 4.2
Identities = 11/44 (25%), Positives = 26/44 (59%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ +E + ++L K++E E R E +K +++L+++V L+
Sbjct: 243 LEKELESLEGSKRKLEEKIRELEERIEELKKEIEELEEKVKELK 286
Score = 30.0 bits (68), Expect = 4.6
Identities = 11/37 (29%), Positives = 23/37 (62%)
Query: 96 EEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDR 132
EEY ++K++ +LKE E + K +++L+K + +
Sbjct: 455 EEYTAELKRIEKELKEIEEKERKLRKELRELEKVLKK 491
Score = 29.6 bits (67), Expect = 5.4
Identities = 15/43 (34%), Positives = 28/43 (65%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEV 135
+ +E+ + +IK+ KLKE E A+K ++KL+K ++R+E
Sbjct: 683 EELEKRREEIKKTLEKLKEELEEREKAKKELEKLEKALERVEE 725
>gnl|CDD|202101 pfam02050, FliJ, Flagellar FliJ protein.
Length = 122
Score = 31.1 bits (71), Expect = 0.62
Identities = 8/46 (17%), Positives = 22/46 (47%), Gaps = 5/46 (10%)
Query: 91 ANQRVEEYKRQIKQLAVKLK-----EAEARAEFAEKTVKKLQKEVD 131
A ++VE+ + Q ++ + K + + ++ ++ QK +D
Sbjct: 71 AEKQVEQAREQWQEANQERKKLEKLLEREKKKEQKEENRREQKLLD 116
>gnl|CDD|221919 pfam13094, CENP-Q, CENP-A-nucleosome distal (CAD) centromere
subunit. CENP-Q is one of the components that assembles
onto the CENP-A-nucleosome distal (CAD) centromere. The
centromere, which is the basic element of chromosome
inheritance, is epigenetically determined in mammals.
CENP-A, the centromere-specific histone H3 variant,
assembles an array of nucleosomes and it is this that
seems to be the prime candidate for specifying
centromere identity. CENP-A nucleosomes directly recruit
a proximal CENP-A nucleosome associated complex (NAC)
comprised of CENP-M, CENP-N and CENP-T, CENP-U(50),
CENP-C and CENP-H. Assembly of the CENP-A NAC at
centromeres is dependent on CENP-M, CENP-N and CENP-T.
Additionally, there are seven other subunits which make
up the CENP-A-nucleosome distal (CAD) centromere,
CENP-K, CENP-L, CENP-O, CENP-P, CENP-Q, CENP-R and
CENP-S, also assembling on the CENP-A NAC. Fta7 is the
equivalent component of the fission yeast Sim4 complex.
Length = 159
Score = 31.6 bits (72), Expect = 0.64
Identities = 13/60 (21%), Positives = 26/60 (43%), Gaps = 1/60 (1%)
Query: 85 TYATPVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVSGHTVLGLG 144
Q +E + +I++ +L++ + EK K L++E + + H VL L
Sbjct: 34 RQLAAELKQ-LELLEEEIRREEAELEKDLEYLQELEKNAKALEREREEESKNLHPVLRLL 92
>gnl|CDD|221533 pfam12329, TMF_DNA_bd, TATA element modulatory factor 1 DNA
binding. This is the middle region of a family of TATA
element modulatory factor 1 proteins conserved in
eukaryotes that contains at its N-terminal section a
number of leucine zippers that could potentially form
coiled coil structures. The whole proteins bind to the
TATA element of some RNA polymerase II promoters and
repress their activity. by competing with the binding of
TATA binding protein. TMFs are evolutionarily conserved
golgins that bind Rab6, a ubiquitous ras-like
GTP-binding Golgi protein, and contribute to Golgi
organisation in animal and plant cells.
Length = 74
Score = 29.6 bits (67), Expect = 0.73
Identities = 14/34 (41%), Positives = 21/34 (61%)
Query: 101 QIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
IK+L K KE E +K ++KL+KE++ LE
Sbjct: 34 TIKKLRAKNKELEKEIAELKKKLEKLEKELENLE 67
>gnl|CDD|214661 smart00435, TOPEUc, DNA Topoisomerase I (eukaryota). DNA
Topoisomerase I (eukaryota), DNA topoisomerase V,
Vaccina virus topoisomerase, Variola virus
topoisomerase, Shope fibroma virus topoisomeras.
Length = 391
Score = 32.3 bits (74), Expect = 0.76
Identities = 10/58 (17%), Positives = 30/58 (51%), Gaps = 2/58 (3%)
Query: 79 KKSPSPTYATPV--ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+++ S T+ + ++++ K Q+K+L + E ++ K K +++ ++L+
Sbjct: 268 QRTVSKTHEKSMEKLQEKIKALKYQLKRLKKMILLFEMISDLKRKLKSKFERDNEKLD 325
>gnl|CDD|176073 cd08691, C2_NEDL1-like, C2 domain present in NEDL1 (NEDD4-like
ubiquitin protein ligase-1). NEDL1 (AKA HECW1(HECT, C2
and WW domain containing E3 ubiquitin protein ligase 1))
is a newly identified HECT-type E3 ubiquitin protein
ligase highly expressed in favorable neuroblastomas. In
vertebrates it is found primarily in neuronal tissues,
including the spinal cord. NEDL1 is thought to normally
function in the quality control of cellular proteins by
eliminating misfolded proteins. This is thought to be
accomplished via a mechanism analogous to that of
ER-associated degradation by forming tight complexes and
aggregating misfolded proteins that have escaped
ubiquitin-mediated degradation. NEDL1, is composed of a
C2 domain, two WW domains, and a ubiquitin ligase Hect
domain. C2 domains fold into an 8-standed beta-sandwich
that can adopt 2 structural arrangements: Type I and
Type II, distinguished by a circular permutation
involving their N- and C-terminal beta strands. Many C2
domains are Ca2+-dependent membrane-targeting modules
that bind a wide variety of substances including bind
phospholipids, inositol polyphosphates, and
intracellular proteins. Most C2 domain proteins are
either signal transduction enzymes that contain a single
C2 domain, such as protein kinase C, or membrane
trafficking proteins which contain at least two C2
domains, such as synaptotagmin 1. However, there are a
few exceptions to this including RIM isoforms and some
splice variants of piccolo/aczonin and intersectin which
only have a single C2 domain. C2 domains with a calcium
binding region have negatively charged residues,
primarily aspartates, that serve as ligands for calcium
ions.
Length = 137
Score = 30.8 bits (70), Expect = 0.79
Identities = 16/51 (31%), Positives = 26/51 (50%), Gaps = 12/51 (23%)
Query: 334 GSSDPYVKVHLLPDK-----------QKVKTRVLRKTRNPIY-NEEFTFTG 372
+ DPYVK+ + P K Q+ +T ++ T NP++ E+F F G
Sbjct: 19 FNPDPYVKISIQPGKRHIFPALPHHGQECRTSIVENTINPVWHREQFVFVG 69
>gnl|CDD|221143 pfam11593, Med3, Mediator complex subunit 3 fungal. Mediator is a
large complex of up to 33 proteins that is conserved
from plants to fungi to humans - the number and
representation of individual subunits varying with
species. It is arranged into four different sections, a
core, a head, a tail and a kinase-activity part, and the
number of subunits within each of these is what varies
with species. Overall, Mediator regulates the
transcriptional activity of RNA polymerase II but it
would appear that each of the four different sections
has a slightly different function. Mediator subunit
Hrs1/Med3 is a physical target for Cyc8-Tup1, a yeast
transcriptional co-repressor.
Length = 381
Score = 31.9 bits (72), Expect = 0.88
Identities = 18/103 (17%), Positives = 31/103 (30%), Gaps = 9/103 (8%)
Query: 181 KRPTAVRSPAAAGPNSHYLKKSPSPTYATPVASLVNSPTGSTNSNNGAGSNSHSPIQPCV 240
+ A S + ++ + S T TP A+ V ++ N G S +
Sbjct: 121 QLGNAGASASITKTSNGSDAATTSSTANTPAAAKVLKANAASAPNTTTGVGSAATTAAIS 180
Query: 241 ALPGTVVIT---------ENEKAAPLVLGVAGPTTAGNGPAAN 274
A T T + +K P A + A+
Sbjct: 181 ATTATTPTTTQKKPRKPRQTKKTGPAAAAKAQASAQAQAQASA 223
>gnl|CDD|220815 pfam10577, UPF0560, Uncharacterized protein family UPF0560. This
family of proteins has no known function.
Length = 805
Score = 32.1 bits (73), Expect = 1.0
Identities = 19/57 (33%), Positives = 28/57 (49%), Gaps = 4/57 (7%)
Query: 1 MNHDGPDVQSLEKVSGHTVLGLGLAGLVFVATVCLATCYCRRR--SSPLEAKKLALS 55
+ G D+ + V +LG GLA +V + +CL YCRR+ +KL LS
Sbjct: 261 ITQSGKDITTYHTVFLLAILG-GLALIVLI-LLCLLLYYCRRKCLKPRQRHRKLQLS 315
>gnl|CDD|183582 PRK12543, PRK12543, RNA polymerase sigma factor; Provisional.
Length = 179
Score = 30.9 bits (70), Expect = 1.3
Identities = 16/52 (30%), Positives = 25/52 (48%), Gaps = 4/52 (7%)
Query: 420 EVFYSLQSFETYGSTLHFVVFSFDRYSRDDIVGEVFYSL-QSFETYGHSLSF 470
Y + E Y T+HF+V D+ DD+V E++ L +S Y + F
Sbjct: 10 SEIYDVTIQEVYK-TVHFLVE--DKQDVDDVVNEIYIQLWESLRKYDSNRPF 58
>gnl|CDD|227061 COG4717, COG4717, Uncharacterized conserved protein [Function
unknown].
Length = 984
Score = 31.4 bits (71), Expect = 1.6
Identities = 10/43 (23%), Positives = 20/43 (46%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
N ++ + ++KQ ++ EAE K ++ + E RL
Sbjct: 180 NPQINQLLEKLKQERNEIDEAEKEYATYHKLLESRRAEHARLA 222
>gnl|CDD|205039 pfam12718, Tropomyosin_1, Tropomyosin like. This family is a set
of eukaryotic tropomyosins. Within the yeast Tmp1 and
Tmp2, biochemical and sequence analyses indicate that
Tpm2p spans four actin monomers along a filament,
whereas Tpmlp spans five. Despite its shorter length,
Tpm2p can compete with Tpm1p for binding to F-actin.
Over-expression of Tpm2p in vivo alters the axial
budding of haploids to a bipolar pattern, and this can
be partially suppressed by co-over-expression of Tpm1p.
This suggests distinct functions for the two
tropomyosins, and indicates that the ratio between them
is important for correct morphogenesis. The family also
contains higher eukaryote Tmp3 members.
Length = 143
Score = 30.3 bits (69), Expect = 1.7
Identities = 15/46 (32%), Positives = 25/46 (54%), Gaps = 4/46 (8%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKK--LQKEVDRLE 134
A +R EE + ++K+L + E E E K L++EV++LE
Sbjct: 12 AQERAEELEEKLKELEQENLEKE--QEITSLQKKNQQLEEEVEKLE 55
Score = 29.1 bits (66), Expect = 3.5
Identities = 19/48 (39%), Positives = 28/48 (58%), Gaps = 6/48 (12%)
Query: 92 NQRVEE-----YKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
Q +EE KR +K+ KL+EA+ +AE +E+ VK L+ E D E
Sbjct: 82 IQLLEEELEESEKR-LKETTEKLREADKKAEESERKVKALENERDEWE 128
>gnl|CDD|202504 pfam02996, Prefoldin, Prefoldin subunit. This family comprises of
several prefoldin subunits. The biogenesis of the
cytoskeletal proteins actin and tubulin involves
interaction of nascent chains of each of the two
proteins with the oligomeric protein prefoldin (PFD) and
their subsequent transfer to the cytosolic chaperonin
CCT (chaperonin containing TCP-1). Electron microscopy
shows that eukaryotic PFD, which has a similar structure
to its archaeal counterpart, interacts with unfolded
actin along the tips of its projecting arms. In its
PFD-bound state, actin seems to acquire a conformation
similar to that adopted when it is bound to CCT.
Length = 120
Score = 29.5 bits (67), Expect = 1.8
Identities = 8/38 (21%), Positives = 26/38 (68%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKE 129
+R+EE ++Q+++L +L++ + + E ++++Q++
Sbjct: 83 KKRIEELEKQLEKLEEELEKLKDQITTLEANLQQVQQK 120
>gnl|CDD|221244 pfam11818, DUF3340, C-terminal domain of tail specific protease
(DUF3340). This presumed domain is found at the
C-terminus of tail specific proteases. Its function is
unknown. This family is found in bacteria and
eukaryotes. This presumed domain is typically between 88
to 187 amino acids in length.
Length = 139
Score = 29.9 bits (68), Expect = 2.0
Identities = 15/46 (32%), Positives = 24/46 (52%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVSG 137
N+ + K + V L EAE +AE E K+L++E +R + G
Sbjct: 58 NEDIAWLKEERDDKTVSLNEAERKAEREEDEKKRLKRENERRKALG 103
>gnl|CDD|222698 pfam14346, DUF4398, Domain of unknown function (DUF4398). This
family of proteins is functionally uncharacterized. This
family of proteins is found in bacteria and archaea.
Proteins in this family are typically between 127 and
269 amino acids in length.
Length = 105
Score = 29.3 bits (66), Expect = 2.2
Identities = 25/119 (21%), Positives = 48/119 (40%), Gaps = 29/119 (24%)
Query: 30 VATVCLATCYCRRRSSPLEAKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATP 89
+A + LA C S P ++LA ++ L+R A + A P LK
Sbjct: 1 LAVLALAGC----ASQPAPDEELADAEAALERAEAAGAEQYA-PPYVELKL--------- 46
Query: 90 VANQRVEEYKRQI-----KQLAVKLKEAEARAEFAE---------KTVKKLQKEVDRLE 134
A +++ + K + ++ ++AEA A AE +++ + ++RL
Sbjct: 47 -AREKLAQAKAALDEGKYEEARRLAEQAEADARLAEAKARAAKAQAALEEAKDSIERLR 104
>gnl|CDD|219572 pfam07780, Spb1_C, Spb1 C-terminal domain. This presumed domain is
found at the C-terminus of a family of FtsJ-like
methyltransferases. Members of this family are involved
in 60S ribosomal biogenesis.
Length = 212
Score = 30.3 bits (69), Expect = 2.3
Identities = 14/44 (31%), Positives = 26/44 (59%), Gaps = 4/44 (9%)
Query: 88 TPVANQRVEEYKRQIKQL---AVKLKEAEARAEFAEKTVKKLQK 128
P+ + V YK ++K++ +K K AEA+A + +K+L+K
Sbjct: 88 LPITKEEVAAYKEKLKEINARPIK-KVAEAKARKKMRALKRLEK 130
>gnl|CDD|183854 PRK13042, PRK13042, superantigen-like protein; Reviewed.
Length = 291
Score = 30.4 bits (68), Expect = 2.6
Identities = 13/60 (21%), Positives = 25/60 (41%)
Query: 179 TLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVASLVNSPTGSTNSNNGAGSNSHSPIQP 238
T T V +P + P++ P TP ++ V +P + N+ + + +P P
Sbjct: 31 TTPSSTKVEAPQSTPPSTKVEAPQSKPNATTPPSTKVEAPQQTPNATTPSSTKVETPQSP 90
>gnl|CDD|204614 pfam11221, Med21, Subunit 21 of Mediator complex. Med21 has been
known as Srb7 in yeasts, hSrb7 in humans and Trap 19 in
Drosophila. The heterodimer of the two subunits Med7 and
Med21 appears to act as a hinge between the middle and
the tail regions of Mediator.
Length = 132
Score = 29.2 bits (66), Expect = 2.8
Identities = 18/38 (47%), Positives = 25/38 (65%)
Query: 96 EEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRL 133
EE R+IK+L +L+E EA E A K +KL K+V+ L
Sbjct: 88 EEQLRRIKELEEELREVEAEREEAVKEKEKLLKKVEAL 125
>gnl|CDD|191675 pfam07047, OPA3, Optic atrophy 3 protein (OPA3). This family
consists of several optic atrophy 3 (OPA3) proteins.
OPA3 deficiency causes type III 3-methylglutaconic
aciduria (MGA) in humans. This disease manifests with
early bilateral optic atrophy, spasticity,
extrapyramidal dysfunction, ataxia, and cognitive
deficits, but normal longevity.
Length = 134
Score = 29.2 bits (66), Expect = 2.8
Identities = 14/39 (35%), Positives = 23/39 (58%)
Query: 95 VEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRL 133
V EY+RQ ++ A K +E + E E V +L+ E++R
Sbjct: 93 VYEYQRQSRKEAKKEEELQQELEELEARVGELELEIERQ 131
>gnl|CDD|224340 COG1422, COG1422, Predicted membrane protein [Function unknown].
Length = 201
Score = 30.0 bits (68), Expect = 3.0
Identities = 10/45 (22%), Positives = 27/45 (60%), Gaps = 4/45 (8%)
Query: 94 RVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVSGH 138
+++E ++ +K+ + +EA+ + K +KKLQ++ ++E+
Sbjct: 73 KMKELQKMMKEFQKEFREAQESGD--MKKLKKLQEK--QMEMMDD 113
>gnl|CDD|234635 PRK00104, scpA, segregation and condensation protein A; Reviewed.
Length = 242
Score = 29.8 bits (68), Expect = 3.3
Identities = 12/30 (40%), Positives = 20/30 (66%), Gaps = 2/30 (6%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEA-RAEFAEK 121
+++ EYK + K+ A +LKE E RA++ K
Sbjct: 93 EKLIEYK-KFKEAAEELKEQEEERAQYFSK 121
>gnl|CDD|221371 pfam12004, DUF3498, Domain of unknown function (DUF3498). This
presumed domain is functionally uncharacterized. This
domain is found in eukaryotes. This domain is typically
between 433 to 538 amino acids in length. This domain is
found associated with pfam00616, pfam00168. This domain
has two conserved sequence motifs: DLQ and PLSFQNP.
Length = 489
Score = 30.1 bits (67), Expect = 3.8
Identities = 17/46 (36%), Positives = 31/46 (67%), Gaps = 4/46 (8%)
Query: 90 VANQRVEEYKR----QIKQLAVKLKEAEARAEFAEKTVKKLQKEVD 131
V+ +R+EEY+R Q +Q+ L+E +AR E +E+ +++ Q+E D
Sbjct: 381 VSVRRLEEYERRLLGQEQQMQKLLQEYQARLEDSEERLRRQQEEKD 426
>gnl|CDD|197664 smart00338, BRLZ, basic region leucin zipper.
Length = 65
Score = 27.5 bits (62), Expect = 3.9
Identities = 11/35 (31%), Positives = 22/35 (62%), Gaps = 2/35 (5%)
Query: 100 RQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
R+ K+ +++E E + E E ++L+KE++RL
Sbjct: 21 RERKK--AEIEELERKVEQLEAENERLKKEIERLR 53
>gnl|CDD|222613 pfam14235, DUF4337, Domain of unknown function (DUF4337). This
family of proteins is functionally uncharacterized. This
family of proteins is found in bacteria. Proteins in
this family are typically between 187 and 201 amino
acids in length. There is a single completely conserved
residue Q that may be functionally important.
Length = 158
Score = 29.1 bits (66), Expect = 4.4
Identities = 17/97 (17%), Positives = 30/97 (30%), Gaps = 27/97 (27%)
Query: 78 LKKSPSPTYATPVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE--- 134
+P ++ YK++ + + KE EA+A+ AE + R
Sbjct: 64 EAAAPRAELQA-----KIARYKKEKARYRSEAKELEAKAKEAEAESDHALHQHHRFALAV 118
Query: 135 --------VSGHTVL-----------GLGLAGLVFAA 152
++ L GLG G+V
Sbjct: 119 ALLQIAIALASIAALTKKKWLWYASLGLGAGGVVVFL 155
>gnl|CDD|238347 cd00636, TroA-like, Helical backbone metal receptor (TroA-like
domain). These proteins have been shown to function in
the ABC transport of ferric siderophores and metal ions
such as Mn2+, Fe3+, Cu2+ and/or Zn2+. Their ligand
binding site is formed in the interface between two
globular domains linked by a single helix. Many of
these proteins also possess a low complexity region
containing a metal-binding histidine-rich motif
(repetitive HDH sequence). The TroA-like proteins
differ in their fold and ligand-binding mechanism from
the PBPI and PBPII proteins, but are structurally
similar, however, to the beta-subunit of the nitrogenase
molybdenum-iron protein MoFe. Most TroA-like proteins
are encoded by ABC-type operons and appear to function
as periplasmic components of ABC transporters in metal
ion uptake.
Length = 148
Score = 29.1 bits (65), Expect = 4.4
Identities = 11/57 (19%), Positives = 23/57 (40%), Gaps = 4/57 (7%)
Query: 78 LKKSPSPTYATPVANQ-RVEEYKRQIKQLAVKL---KEAEARAEFAEKTVKKLQKEV 130
L K P A++ +E K I+ + L + AE + + +L+ ++
Sbjct: 79 LSKIAIPVVVVDEASELSLENIKESIRLIGKALGKEENAEELIAELDARLAELRAKL 135
>gnl|CDD|192292 pfam09429, Wbp11, WW domain binding protein 11. The WW domain is a
small protein module with a triple-stranded beta-sheet
fold. This is a family of WW domain binding proteins.
Length = 78
Score = 27.6 bits (62), Expect = 4.7
Identities = 14/44 (31%), Positives = 26/44 (59%), Gaps = 4/44 (9%)
Query: 95 VEEYKRQIKQLAVKLKEAEARAEFAEKTVKK----LQKEVDRLE 134
+ Y+++ K+ +K +AE +A K KK LQ+E+D+L+
Sbjct: 7 TDAYRKEQKKKELKKNKAERQARREAKLAKKNPDRLQRELDKLK 50
>gnl|CDD|236545 PRK09510, tolA, cell envelope integrity inner membrane protein
TolA; Provisional.
Length = 387
Score = 29.8 bits (67), Expect = 4.8
Identities = 20/82 (24%), Positives = 30/82 (36%), Gaps = 5/82 (6%)
Query: 48 EAKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVANQRVEEYKRQIKQLAV 107
EA K A + A ++ AAA K A A + E K++ + A
Sbjct: 122 EAAKQAALKQKQAEEAAAKAAAAAK-----AKAEAEAKRAAAAAKKAAAEAKKKAEAEAA 176
Query: 108 KLKEAEARAEFAEKTVKKLQKE 129
K AEA+ + + K E
Sbjct: 177 KKAAAEAKKKAEAEAAAKAAAE 198
>gnl|CDD|237865 PRK14951, PRK14951, DNA polymerase III subunits gamma and tau;
Provisional.
Length = 618
Score = 29.7 bits (67), Expect = 4.9
Identities = 27/113 (23%), Positives = 41/113 (36%), Gaps = 2/113 (1%)
Query: 178 MTLKRPTAVRSPAAAGPNSHYLKKSPSP-TYATPVASLVNSPTGSTNSNNGAGSNSHSPI 236
M L R A + AAA + KK+P+ A P A+ V + + + +P
Sbjct: 356 MVLLRLLAFKPAAAAEAAAPAEKKTPARPEAAAPAAAPVAQAAAAPAPAAAPAAAASAPA 415
Query: 237 QPCVALPGTVVITENEKAAPLVLGVAGPTTAGNGPAANGTDSDDSCALVNKET 289
P A P V AAP A P PA + ++ A+ +
Sbjct: 416 APPAAAPPAPVAAPAA-AAPAAAPAAAPAAVALAPAPPAQAAPETVAIPVRVA 467
>gnl|CDD|218434 pfam05103, DivIVA, DivIVA protein. The Bacillus subtilis divIVA1
mutation causes misplacement of the septum during cell
division, resulting in the formation of small, circular,
anucleate mini-cells. Inactivation of divIVA produces a
mini-cell phenotype, whereas overproduction of DivIVA
results in a filamentation phenotype. These proteins
appear to contain coiled-coils.
Length = 131
Score = 28.4 bits (64), Expect = 5.0
Identities = 21/55 (38%), Positives = 26/55 (47%), Gaps = 12/55 (21%)
Query: 88 TPVANQRVEEYKRQIKQLAVK-----LKEAEARAE----FAEKTVKKLQKEVDRL 133
T V Q E ++K A K +KEAEA+AE A + KKL E D L
Sbjct: 68 TLVVAQETAE---EVKANAQKEAELIIKEAEAKAERIVNDANEEAKKLATEYDEL 119
>gnl|CDD|165263 PHA02954, PHA02954, EEV membrane glycoprotein; Provisional.
Length = 317
Score = 29.7 bits (66), Expect = 5.0
Identities = 14/56 (25%), Positives = 29/56 (51%), Gaps = 1/56 (1%)
Query: 121 KTVKKLQKEVDRLEVSGHTVL-GLGLAGLVFAATVCLATCYCRRRTSPLEAKKLAL 175
K V + ++E++ LE + H ++ L + G++F +V + C C + + KL
Sbjct: 262 KDVVQYEQEIESLEATYHIIIVALTIMGVIFLISVIVLVCSCNKNNDQYKFHKLLP 317
>gnl|CDD|233757 TIGR02168, SMC_prok_B, chromosome segregation protein SMC, common
bacterial type. SMC (structural maintenance of
chromosomes) proteins bind DNA and act in organizing and
segregating chromosomes for partition. SMC proteins are
found in bacteria, archaea, and eukaryotes. This family
represents the SMC protein of most bacteria. The smc
gene is often associated with scpB (TIGR00281) and scpA
genes, where scp stands for segregation and condensation
protein. SMC was shown (in Caulobacter crescentus) to be
induced early in S phase but present and bound to DNA
throughout the cell cycle [Cellular processes, Cell
division, DNA metabolism, Chromosome-associated
proteins].
Length = 1179
Score = 30.0 bits (68), Expect = 5.0
Identities = 12/43 (27%), Positives = 24/43 (55%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
Q+ + + ++ L +L+E EA+ E E + +L +E+ LE
Sbjct: 301 EQQKQILRERLANLERQLEELEAQLEELESKLDELAEELAELE 343
>gnl|CDD|227278 COG4942, COG4942, Membrane-bound metallopeptidase [Cell division
and chromosome partitioning].
Length = 420
Score = 29.7 bits (67), Expect = 5.5
Identities = 11/53 (20%), Positives = 30/53 (56%)
Query: 82 PSPTYATPVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+ ++ ++++++ +++I L K++E + + EK +K L+ E+ LE
Sbjct: 27 LAAAFSAAADDKQLKQIQKEIAALEKKIREQQDQRAKLEKQLKSLETEIASLE 79
Score = 28.9 bits (65), Expect = 8.7
Identities = 5/38 (13%), Positives = 14/38 (36%)
Query: 92 NQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKE 129
+ + Q+ + A LK+ + + L+ +
Sbjct: 72 ETEIASLEAQLIETADDLKKLRKQIADLNARLNALEVQ 109
>gnl|CDD|225288 COG2433, COG2433, Uncharacterized conserved protein [Function
unknown].
Length = 652
Score = 29.7 bits (67), Expect = 5.6
Identities = 10/45 (22%), Positives = 23/45 (51%), Gaps = 3/45 (6%)
Query: 94 RVEEYKRQIKQLAVKLKEAEARAEFA---EKTVKKLQKEVDRLEV 135
+EE KR+I++L +L+ ++ ++ + ++RLE
Sbjct: 444 ELEELKREIEKLESELERFRREVRDKVRKDREIRARDRRIERLEK 488
>gnl|CDD|224495 COG1579, COG1579, Zn-ribbon protein, possibly nucleic acid-binding
[General function prediction only].
Length = 239
Score = 29.3 bits (66), Expect = 5.6
Identities = 10/53 (18%), Positives = 22/53 (41%), Gaps = 9/53 (16%)
Query: 91 ANQRVEEYKRQIKQLAVKLKEAEAR---------AEFAEKTVKKLQKEVDRLE 134
+E+ + Q+ QL +++E R A E+ ++ L E+ +
Sbjct: 50 LEIELEDLENQVSQLESEIQEIRERIKRAEEKLSAVKDERELRALNIEIQIAK 102
>gnl|CDD|153280 cd07596, BAR_SNX, The Bin/Amphiphysin/Rvs (BAR) domain of Sorting
Nexins. BAR domains are dimerization, lipid binding and
curvature sensing modules found in many different
proteins with diverse functions. Sorting nexins (SNXs)
are Phox homology (PX) domain containing proteins that
are involved in regulating membrane traffic and protein
sorting in the endosomal system. SNXs differ from each
other in their lipid-binding specificity, subcellular
localization and specific function in the endocytic
pathway. A subset of SNXs also contain BAR domains. The
PX-BAR structural unit determines the specific membrane
targeting of SNXs. BAR domains form dimers that bind to
membranes, induce membrane bending and curvature, and
may also be involved in protein-protein interactions.
Length = 218
Score = 28.9 bits (65), Expect = 5.9
Identities = 12/48 (25%), Positives = 26/48 (54%), Gaps = 3/48 (6%)
Query: 87 ATPVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
A + +VEE + ++++ L+EA R E+ ++L++E+ R
Sbjct: 139 APGIKPAKVEELEEELEEAESALEEARKR---YEEISERLKEELKRFH 183
>gnl|CDD|183756 PRK12799, motB, flagellar motor protein MotB; Reviewed.
Length = 421
Score = 29.7 bits (66), Expect = 5.9
Identities = 24/109 (22%), Positives = 41/109 (37%), Gaps = 1/109 (0%)
Query: 174 ALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVASLVNSPTGSTNSNNGAGSNSH 233
A++Q + P++ P+ A S +S + T A+ VA S + G +
Sbjct: 309 AVTQSSAITPSSAAIPSPAVIPSSVTTQSATTTQASAVALSSAGVLPSDVTLPGTVALPA 368
Query: 234 SPIQPCVALPGTVVITENEKAAPLVLGVAGPTTA-GNGPAANGTDSDDS 281
+ P + T+ + GPTT+ PA+N S S
Sbjct: 369 AEPVNMQPQPMSTTETQQSSTGNITSTANGPTTSLPAAPASNIPVSPTS 417
>gnl|CDD|220368 pfam09730, BicD, Microtubule-associated protein Bicaudal-D. BicD
proteins consist of three coiled-coiled domains and are
involved in dynein-mediated minus end-directed transport
from the Golgi apparatus to the endoplasmic reticulum
(ER). For full functioning they bind with GSK-3beta
pfam05350 to maintain the anchoring of microtubules to
the centromere. It appears that amino-acid residues
437-617 of BicD and the kinase activity of GSK-3 are
necessary for the formation of a complex between BicD
and GSK-3beta in intact cells.
Length = 711
Score = 29.8 bits (67), Expect = 6.0
Identities = 15/53 (28%), Positives = 24/53 (45%), Gaps = 4/53 (7%)
Query: 90 VANQRVEEYKRQIKQLAVKLKEAEARAEFA----EKTVKKLQKEVDRLEVSGH 138
VA V E K ++K L + E + R E ++ L +++ LE S H
Sbjct: 357 VAVSEVGELKAELKALKARYNELQERYEDEKDRLRNEIQNLAEKLLSLEKSSH 409
>gnl|CDD|150786 pfam10153, DUF2361, Uncharacterized conserved protein (DUF2361).
This is a region of 120 amino acids that is conserved in
a family of proteins found from plants to fungi. The
function is not known.
Length = 114
Score = 28.0 bits (63), Expect = 6.3
Identities = 12/37 (32%), Positives = 21/37 (56%), Gaps = 5/37 (13%)
Query: 99 KRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEV 135
R++KQL KL+E E +K L++++ + EV
Sbjct: 65 TRRLKQLEKKLEETSDEKE-----IKDLKEQLSKAEV 96
>gnl|CDD|221283 pfam11875, DUF3395, Domain of unknown function (DUF3395). This
domain is functionally uncharacterized. This domain is
found in eukaryotes. This presumed domain is typically
between 147 to 176 amino acids in length. This domain is
found associated with pfam00226.
Length = 144
Score = 28.5 bits (64), Expect = 6.5
Identities = 13/45 (28%), Positives = 26/45 (57%), Gaps = 5/45 (11%)
Query: 93 QRVEEYKRQIKQ----LAVKLKEAE-ARAEFAEKTVKKLQKEVDR 132
Q+ +E +RQ ++ +A K +EAE A + + +KL +E ++
Sbjct: 6 QKKKEQERQREKNKTEIAKKKQEAESAVSLMGDVVERKLTREEEK 50
>gnl|CDD|182066 PRK09765, PRK09765, PTS system 2-O-a-mannosyl-D-glycerate specific
transporter subunit IIABC; Provisional.
Length = 631
Score = 29.3 bits (66), Expect = 7.0
Identities = 19/77 (24%), Positives = 36/77 (46%), Gaps = 4/77 (5%)
Query: 84 PTYATPVANQRVEEYKRQIKQ-LAVKLKEAEARAEFAEKTVKKLQKEVDRLEVSG--HTV 140
P + PVA + ++ + I+Q L +K + + + VK ++ E+ + +SG V
Sbjct: 240 PALSVPVA-EPIKHAEALIQQALELKRSDETRTVQQDTQPVKSVKTELKQALLSGISFAV 298
Query: 141 LGLGLAGLVFAATVCLA 157
+ G V A V L+
Sbjct: 299 PLIVAGGTVLAVAVLLS 315
>gnl|CDD|99801 cd06204, CYPOR, NADPH cytochrome p450 reductase (CYPOR) serves as
an electron donor in several oxygenase systems and is a
component of nitric oxide synthases and methionine
synthase reductases. CYPOR transfers two electrons from
NADPH to the heme of cytochrome p450 via FAD and FMN.
Ferredoxin-NADP+ (oxido)reductase is an FAD-containing
enzyme that catalyzes the reversible electron transfer
between NADP(H) and electron carrier proteins such as
ferredoxin and flavodoxin. Isoforms of these
flavoproteins (i.e. having a non-covalently bound FAD as
a prosthetic group) are present in chloroplasts,
mitochondria, and bacteria in which they participate in
a wide variety of redox metabolic pathways. The
C-terminal domain contains most of the NADP(H) binding
residues and the N-terminal domain interacts
non-covalently with the isoalloxazine rings of the
flavin molecule which lies largely in a large gap
betweed the two domains. Ferredoxin-NADP+ reductase
first accepts one electron from reduced ferredoxin to
form a flavin semiquinone intermediate. The enzyme then
accepts a second electron to form FADH2 which then
transfers two electrons and a proton to NADP+ to form
NADPH.
Length = 416
Score = 29.1 bits (66), Expect = 7.0
Identities = 7/18 (38%), Positives = 10/18 (55%)
Query: 598 GTALTHWTDVCNSPRRQI 615
TAL H+ D+ RQ+
Sbjct: 93 RTALRHYLDITAPVSRQV 110
>gnl|CDD|135173 PRK04654, PRK04654, sec-independent translocase; Provisional.
Length = 214
Score = 28.6 bits (63), Expect = 7.5
Identities = 32/153 (20%), Positives = 57/153 (37%), Gaps = 22/153 (14%)
Query: 96 EEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLEVSGHTVLGLGLAGLVFAATVC 155
EE KR ++ + L+EAE + ++ Q++V++ + H + + + +
Sbjct: 57 EELKRSLQDVQASLREAEDQ-------LRNTQQQVEQGARALHDDVSRDID--IRTSATP 107
Query: 156 LATCYCRRRTSPLEAKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVA--- 212
+AT PLE LS A P A ++ +P A P+A
Sbjct: 108 VAT--------PLELAHADLSASAQVDAAAGAEPGAGQAHTPVPAPAPVIAQAQPIAPAP 159
Query: 213 --SLVNSPTGSTNSNNGAGSNSHSPIQPCVALP 243
+LV +P + A +P P P
Sbjct: 160 HQTLVPAPHDTIVPAPHAAHLPSAPATPVSVAP 192
>gnl|CDD|216689 pfam01765, RRF, Ribosome recycling factor. The ribosome recycling
factor (RRF / ribosome release factor) dissociates the
ribosome from the mRNA after termination of translation,
and is essential bacterial growth. Thus ribosomes are
"recycled" and ready for another round of protein
synthesis.
Length = 165
Score = 28.2 bits (64), Expect = 7.8
Identities = 18/48 (37%), Positives = 27/48 (56%), Gaps = 4/48 (8%)
Query: 90 VANQRVEEYK---RQIKQLAV-KLKEAEARAEFAEKTVKKLQKEVDRL 133
A + EE K R I++ A KLK+ E E +E VK+ +KE+ +L
Sbjct: 98 QAKKLAEEAKVAIRNIRRDANDKLKKLEKDKEISEDEVKRAEKEIQKL 145
>gnl|CDD|219342 pfam07227, DUF1423, Protein of unknown function (DUF1423). This
family represents a conserved region approximately 500
residues long within a number of Arabidopsis thaliana
proteins of unknown function.
Length = 446
Score = 28.9 bits (65), Expect = 7.8
Identities = 23/103 (22%), Positives = 40/103 (38%), Gaps = 7/103 (6%)
Query: 34 CLATCYCRRRSSPLEAKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVANQ 93
C R EA + S K ++ +A L++ + Q
Sbjct: 287 PQEACRNRIAEVVQEAVRKMESVAEEKMRMLKKARSALDACDRELEEKAREVSELKMERQ 346
Query: 94 RVEEYKRQIKQLA--VKLKEAEARAEFAEKTVKKLQKEVDRLE 134
R K QI +L V+LK+AE A+ + + ++E +RL+
Sbjct: 347 R---KKPQIDELESIVRLKQAE--ADMFQLKADEARREAERLQ 384
>gnl|CDD|179914 PRK05014, hscB, co-chaperone HscB; Provisional.
Length = 171
Score = 28.3 bits (64), Expect = 7.9
Identities = 14/47 (29%), Positives = 25/47 (53%), Gaps = 5/47 (10%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAE-----KTVKKLQKEVDRLE 134
+RV++ + Q V+ + EA A+ K + KL+ EV++LE
Sbjct: 120 KRVKKMFKTRLQQMVEQLDNEAWDAAADTVRKLKFLDKLRSEVEQLE 166
>gnl|CDD|215636 PLN03218, PLN03218, maturation of RBCL 1; Provisional.
Length = 1060
Score = 29.5 bits (66), Expect = 7.9
Identities = 30/191 (15%), Positives = 56/191 (29%), Gaps = 23/191 (12%)
Query: 120 EKTVKKLQKEVDRLEVSGHTVLGLGLAGLVFAATVCLATCYCRRRTSPLEAKKLALSQMT 179
++ + + V + VL + A + RR++SPL A T
Sbjct: 61 IRSRIRSPRLVVNASLGSGLVLVVVAVTAFSAISFAYLQHTRRRKSSPLVATPSGGGIST 120
Query: 180 LKR--------------PTAVRSPAAAGPNSHYLKKSPSPTYATPVASL-----VNSPTG 220
L R T + + A A + V +
Sbjct: 121 LNREDVQSLDGDVHKGTSTEINVGFRDLVEEVEHTEEEKTHQAQERALMEEESVVVEGSE 180
Query: 221 STNSNNGAGSNSHSPIQPCVALPGTVVITENEKAAPLVLGVAGPTTA-GNGPAANGTDSD 279
S+ + ++ H+ + V+ + L GV P GN P + D
Sbjct: 181 SSRESVRVVADEHTLSDESASSR---VVHGSVALLSLSFGVENPELQNGNSPDQTKLELD 237
Query: 280 DSCALVNKETV 290
S +V + ++
Sbjct: 238 LSQLVVGRHSI 248
>gnl|CDD|222255 pfam13600, DUF4140, N-terminal domain of unknown function
(DUF4140). This family is often found at the N-terminus
of its member proteins, with DUF4139, pfam13598, at the
C-terminus.
Length = 101
Score = 27.3 bits (61), Expect = 8.0
Identities = 9/39 (23%), Positives = 17/39 (43%)
Query: 89 PVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQ 127
+ + E + +++ L +L EA E E +K L
Sbjct: 63 EATSPALAELEEELRALEDELAALEAEKEALEAQIKFLS 101
>gnl|CDD|204414 pfam10211, Ax_dynein_light, Axonemal dynein light chain. Axonemal
dynein light chain proteins play a dynamic role in
flagellar and cilia motility. Eukaryotic cilia and
flagella are complex organelles consisting of a core
structure, the axoneme, which is composed of nine
microtubule doublets forming a cylinder that surrounds a
pair of central singlet microtubules. This
ultra-structural arrangement seems to be one of the most
stable micro-tubular assemblies known and is responsible
for the flagellar and ciliary movement of a large number
of organisms ranging from protozoan to mammals. This
light chain interacts directly with the N-terminal half
of the heavy chains.
Length = 189
Score = 28.3 bits (64), Expect = 8.1
Identities = 8/38 (21%), Positives = 22/38 (57%)
Query: 93 QRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEV 130
Q +++ + + ++L ++ E EA+ E EK ++ ++
Sbjct: 127 QEIKKLEEEKEELEKRVAELEAKLEAIEKREEEERQIE 164
>gnl|CDD|173611 PTZ00421, PTZ00421, coronin; Provisional.
Length = 493
Score = 29.1 bits (65), Expect = 8.3
Identities = 16/90 (17%), Positives = 35/90 (38%), Gaps = 1/90 (1%)
Query: 45 SPLEAKKLALSQMTLKRPTAVRSPAAAGPNSHYLKKSPSPTYATPVANQRVEEYKRQIKQ 104
SP ALS R + V PA+ +H + + +A P A + + +
Sbjct: 392 SPELMGASALSPSGKPRHSGVSVPASTSAMTHSFDDN-TSKHADPCAMGVKRMDEGILDE 450
Query: 105 LAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+L+ + + +K+ ++ + + E
Sbjct: 451 RLGRLQALSEKLRTQHEEIKRCREALQKKE 480
>gnl|CDD|223649 COG0576, GrpE, Molecular chaperone GrpE (heat shock protein)
[Posttranslational modification, protein turnover,
chaperones].
Length = 193
Score = 28.4 bits (64), Expect = 8.4
Identities = 13/45 (28%), Positives = 23/45 (51%), Gaps = 3/45 (6%)
Query: 87 ATPVANQRVEEYKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVD 131
Q + E + Q+++L K K A+AEF E K+ ++E +
Sbjct: 37 ELEEEQQEIAELEAQLEEL--KDKYLRAQAEF-ENLRKRTERERE 78
>gnl|CDD|224459 COG1542, COG1542, Uncharacterized conserved protein [Function
unknown].
Length = 593
Score = 29.1 bits (65), Expect = 8.5
Identities = 7/26 (26%), Positives = 11/26 (42%)
Query: 411 RYSRDDIVGEVFYSLQSFETYGSTLH 436
DD+V Y+L+SF +
Sbjct: 318 ETKIDDLVTAALYTLESFGLIKREVV 343
>gnl|CDD|177623 PHA03387, gp37, spherodin-like protein; Provisional.
Length = 267
Score = 28.8 bits (65), Expect = 8.7
Identities = 10/20 (50%), Positives = 14/20 (70%), Gaps = 2/20 (10%)
Query: 404 FVVFSFDRYSRDDIVGEVFY 423
FV++ R+ R D+VGE FY
Sbjct: 226 FVLYV--RWQRIDVVGEGFY 243
Score = 28.8 bits (65), Expect = 8.7
Identities = 10/20 (50%), Positives = 14/20 (70%), Gaps = 2/20 (10%)
Query: 437 FVVFSFDRYSRDDIVGEVFY 456
FV++ R+ R D+VGE FY
Sbjct: 226 FVLYV--RWQRIDVVGEGFY 243
>gnl|CDD|223021 PHA03247, PHA03247, large tegument protein UL36; Provisional.
Length = 3151
Score = 29.1 bits (65), Expect = 9.2
Identities = 21/115 (18%), Positives = 29/115 (25%), Gaps = 4/115 (3%)
Query: 162 RRRTSPLEAKKLALSQMTLKRPTAVRSPAAAGPNS---HYLKKSPSPTYATPVASLVNSP 218
RR L A S R A R + + +P P + S P
Sbjct: 2664 PRRARRLGRAAQASSPPQRPRRRAARPTVGSLTSLADPPPPPPTPEPA-PHALVSATPLP 2722
Query: 219 TGSTNSNNGAGSNSHSPIQPCVALPGTVVITENEKAAPLVLGVAGPTTAGNGPAA 273
G + + + +P P V A P PAA
Sbjct: 2723 PGPAAARQASPALPAAPAPPAVPAGPATPGGPARPARPPTTAGPPAPAPPAAPAA 2777
>gnl|CDD|223031 PHA03273, PHA03273, envelope glycoprotein C; Provisional.
Length = 486
Score = 28.8 bits (64), Expect = 9.3
Identities = 14/57 (24%), Positives = 26/57 (45%), Gaps = 3/57 (5%)
Query: 184 TAVRSPAAAGPNSHYLKKSP-SPTYATPVASLVNSPTGSTNSNNGAGSNS-HSPIQP 238
+ S + ++ ++ +P +PT+ T + TG+ NS N G+ S QP
Sbjct: 29 STSSSIENSDNSTAEMQSTPATPTHTTSNLTSPFG-TGTDNSTNANGTESTTQASQP 84
>gnl|CDD|217667 pfam03666, NPR3, Nitrogen Permease regulator of amino acid
transport activity 3. This family, also known in yeasts
as Rmd11, complexes with NPR2, pfam06218. This complex
heterodimer is responsible for inactivating TORC1. an
evolutionarily conserved protein complex that controls
cell size via nutritional input signals, specifically,
in response to amino acid starvation.
Length = 424
Score = 28.9 bits (65), Expect = 9.3
Identities = 13/43 (30%), Positives = 25/43 (58%), Gaps = 1/43 (2%)
Query: 91 ANQRVEE-YKRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDR 132
N RV+E Y IK+L++ LK + ++++ K KK+ ++
Sbjct: 120 YNYRVDEMYHHVIKKLSLALKYEQQKSDYVWKECKKILALKEK 162
>gnl|CDD|205692 pfam13514, AAA_27, AAA domain. This domain is found in a number of
double-strand DNA break proteins. This domain contains a
P-loop motif.
Length = 1118
Score = 29.0 bits (65), Expect = 9.5
Identities = 7/36 (19%), Positives = 19/36 (52%)
Query: 99 KRQIKQLAVKLKEAEARAEFAEKTVKKLQKEVDRLE 134
+++K+L +++E + + + VK L + + L
Sbjct: 156 LKELKELEAEIREVQLKTRTWKDLVKALDEAEEELA 191
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
0.318 0.133 0.392
Gapped
Lambda K H
0.267 0.0710 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 31,446,792
Number of extensions: 3108461
Number of successful extensions: 4158
Number of sequences better than 10.0: 1
Number of HSP's gapped: 3924
Number of HSP's successfully gapped: 301
Length of query: 622
Length of database: 10,937,602
Length adjustment: 103
Effective length of query: 519
Effective length of database: 6,369,140
Effective search space: 3305583660
Effective search space used: 3305583660
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: 41 (21.7 bits)
S2: 62 (27.7 bits)