RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy15955
(475 letters)
>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 = 250 bits (640), Expect = 2e-82
Identities = 84/138 (60%), Positives = 107/138 (77%), Gaps = 2/138 (1%)
Query: 231 CGELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFK 290
GELL SLCY+P+ + +T+ ++KARNLKA DING SDPYVKVWL + +KR+EK+KT I K
Sbjct: 1 RGELLLSLCYNPTANRITVNIIKARNLKAMDINGTSDPYVKVWLMYKDKRVEKKKTVIKK 60
Query: 291 CNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHW 350
LNPVFNESF FN+P E++RE +L + VMD D + RN+LIG+I L K SG E KHW
Sbjct: 61 RTLNPVFNESFIFNIPLERLRETTLIITVMDKDRLSRNDLIGKIYLGWK--SGGLELKHW 118
Query: 351 QDMITKPRQTIVQWHRLK 368
+DM++KPRQ + QWHRLK
Sbjct: 119 KDMLSKPRQPVAQWHRLK 136
Score = 92.5 bits (230), Expect = 2e-22
Identities = 46/108 (42%), Positives = 70/108 (64%), Gaps = 5/108 (4%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETK---IKR 159
G++ SL Y+ + + + +I A+ L A D++GTSDPYVKV L+ K R+E K IK+
Sbjct: 2 GELLLSLCYNPTANRITVNIIKARNLKAMDINGTSDPYVKVWLMYKDK-RVEKKKTVIKK 60
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLP 207
RTLNP +NE+ F P+++L+ L + V D DR SR+D IG+++L
Sbjct: 61 RTLNPVFNESFIFN-IPLERLRETTLIITVMDKDRLSRNDLIGKIYLG 107
>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 = 237 bits (608), Expect = 1e-77
Identities = 86/125 (68%), Positives = 103/125 (82%)
Query: 101 NVGQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRR 160
N+G+I FS+ YDF STL L+++ A ELPAKD SGTSDP+VK+ LLPDKKH+LETK+KR+
Sbjct: 1 NLGRIQFSVSYDFQESTLTLKILKAVELPAKDFSGTSDPFVKIYLLPDKKHKLETKVKRK 60
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFW 220
LNP WNET FEGFP +KLQ RVL+L V DYDRFSR+D IGEV LPL +VDL+E+ TFW
Sbjct: 61 NLNPHWNETFLFEGFPYEKLQQRVLYLQVLDYDRFSRNDPIGEVSLPLNKVDLTEEQTFW 120
Query: 221 KALKP 225
K LKP
Sbjct: 121 KDLKP 125
Score = 94.7 bits (236), Expect = 2e-23
Identities = 46/123 (37%), Positives = 72/123 (58%), Gaps = 3/123 (2%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G + S+ Y S LT+ +LKA L AKD +G SDP+VK++L +K K +T++ +
Sbjct: 3 GRIQFSVSYDFQESTLTLKILKAVELPAKDFSGTSDPFVKIYLLPDKKH--KLETKVKRK 60
Query: 292 NLNPVFNESFSFN-VPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHW 350
NLNP +NE+F F P+EK+++ L + V+D+D RN+ IG + L E W
Sbjct: 61 NLNPHWNETFLFEGFPYEKLQQRVLYLQVLDYDRFSRNDPIGEVSLPLNKVDLTEEQTFW 120
Query: 351 QDM 353
+D+
Sbjct: 121 KDL 123
>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 = 171 bits (437), Expect = 4e-52
Identities = 70/136 (51%), Positives = 97/136 (71%), Gaps = 2/136 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GELL SL Y P+ LT+ +LKARNL D G SDPYVKV L G K+++K+KT + K
Sbjct: 1 GELLLSLSYLPTAERLTVVVLKARNLPPSDGKGLSDPYVKVSLLQGGKKLKKKKTSVKKG 60
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
LNPVFNE+FSF+VP E++ E SL + V+D D++GRNE+IG+++L G + G E +HW
Sbjct: 61 TLNPVFNEAFSFDVPAEQLEEVSLVITVVDKDSVGRNEVIGQVVL-GPDSGG-EELEHWN 118
Query: 352 DMITKPRQTIVQWHRL 367
+M+ PR+ I +WH+L
Sbjct: 119 EMLASPRKPIARWHKL 134
Score = 88.8 bits (221), Expect = 4e-21
Identities = 42/108 (38%), Positives = 60/108 (55%), Gaps = 7/108 (6%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPD----KKHRLETKIK 158
G++ SL Y L + V+ A+ LP D G SDPYVKV+LL KK + T +K
Sbjct: 1 GELLLSLSYLPTAERLTVVVLKARNLPPSDGKGLSDPYVKVSLLQGGKKLKKKK--TSVK 58
Query: 159 RRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
+ TLNP +NE F+ P ++L+ L + V D D R++ IG+V L
Sbjct: 59 KGTLNPVFNEAFSFD-VPAEQLEEVSLVITVVDKDSVGRNEVIGQVVL 105
>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 = 168 bits (428), Expect = 8e-51
Identities = 68/137 (49%), Positives = 97/137 (70%), Gaps = 2/137 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G++ SL Y P+ LT+ +L+A+NLK D+ G SDPYVK+ L KR++K+KT I K
Sbjct: 2 GDICFSLRYVPTAGKLTVVILEAKNLKKMDVGGLSDPYVKIHLMQNGKRLKKKKTTIKKR 61
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
LNP +NESFSF VP+E+I++ L V V+D+D IG+N+ IG+++L G N +GA E +HW
Sbjct: 62 TLNPYYNESFSFEVPFEQIQKVHLIVTVLDYDRIGKNDPIGKVVL-GCNATGA-ELRHWS 119
Query: 352 DMITKPRQTIVQWHRLK 368
DM+ PR+ I QWH L+
Sbjct: 120 DMLASPRRPIAQWHTLQ 136
Score = 92.5 bits (230), Expect = 2e-22
Identities = 47/107 (43%), Positives = 65/107 (60%), Gaps = 5/107 (4%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLE---TKIKR 159
G I FSL Y L + ++ AK L D+ G SDPYVK+ L+ + K RL+ T IK+
Sbjct: 2 GDICFSLRYVPTAGKLTVVILEAKNLKKMDVGGLSDPYVKIHLMQNGK-RLKKKKTTIKK 60
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
RTLNP +NE+ FE P +++Q L + V DYDR ++D IG+V L
Sbjct: 61 RTLNPYYNESFSFE-VPFEQIQKVHLIVTVLDYDRIGKNDPIGKVVL 106
>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 = 165 bits (419), Expect = 1e-49
Identities = 63/125 (50%), Positives = 86/125 (68%), Gaps = 1/125 (0%)
Query: 101 NVGQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRR 160
+G++ FSL+YDF ++ L + +I A +LPA DM GTSDPYVKV LLPDKK + ETK+ R+
Sbjct: 1 KLGKLQFSLDYDFQSNQLTVGIIQAADLPAMDMGGTSDPYVKVYLLPDKKKKFETKVHRK 60
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFW 220
TLNP +NET F+ P +L ++ L V+D+DRFS+ D IGEV +PL VDL W
Sbjct: 61 TLNPVFNETFTFK-VPYSELGNKTLVFSVYDFDRFSKHDLIGEVRVPLLTVDLGHVTEEW 119
Query: 221 KALKP 225
+ L+
Sbjct: 120 RDLES 124
Score = 105 bits (264), Expect = 3e-27
Identities = 46/125 (36%), Positives = 76/125 (60%), Gaps = 2/125 (1%)
Query: 230 KCGELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIF 289
K G+L SL Y ++ LT+ +++A +L A D+ G SDPYVKV+L +K+ K +T++
Sbjct: 1 KLGKLQFSLDYDFQSNQLTVGIIQAADLPAMDMGGTSDPYVKVYLLPDKKK--KFETKVH 58
Query: 290 KCNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKH 349
+ LNPVFNE+F+F VP+ ++ +L V DFD +++LIG + + T+
Sbjct: 59 RKTLNPVFNETFTFKVPYSELGNKTLVFSVYDFDRFSKHDLIGEVRVPLLTVDLGHVTEE 118
Query: 350 WQDMI 354
W+D+
Sbjct: 119 WRDLE 123
>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 = 161 bits (410), Expect = 3e-48
Identities = 65/136 (47%), Positives = 95/136 (69%), Gaps = 2/136 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GELL SLCY P+ + LT+ +LKAR+L D++G +DPYVKV L +G+KRI K+KT + KC
Sbjct: 2 GELLLSLCYQPTTNRLTVVVLKARHLPKMDVSGLADPYVKVNLYYGKKRISKKKTHVKKC 61
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
LNPVFNESF F++P E++ + S+ +V+D D + +NE+IGR++L K HW+
Sbjct: 62 TLNPVFNESFVFDIPSEELEDISVEFLVLDSDRVTKNEVIGRLVLGPKASGSGGH--HWK 119
Query: 352 DMITKPRQTIVQWHRL 367
++ PR+ I +WH L
Sbjct: 120 EVCNPPRRQIAEWHML 135
Score = 77.1 bits (190), Expect = 6e-17
Identities = 39/106 (36%), Positives = 63/106 (59%), Gaps = 3/106 (2%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKH--RLETKIKRR 160
G++ SL Y + L + V+ A+ LP D+SG +DPYVKV L KK + +T +K+
Sbjct: 2 GELLLSLCYQPTTNRLTVVVLKARHLPKMDVSGLADPYVKVNLYYGKKRISKKKTHVKKC 61
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
TLNP +NE+ F+ P ++L+ + V D DR ++++ IG + L
Sbjct: 62 TLNPVFNESFVFD-IPSEELEDISVEFLVLDSDRVTKNEVIGRLVL 106
>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 = 150 bits (381), Expect = 6e-44
Identities = 67/136 (49%), Positives = 91/136 (66%), Gaps = 2/136 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GEL+ SLCY P+ LT+T++KARNLKA DI G SDPYVKV L +R++K+KT + K
Sbjct: 1 GELMFSLCYLPTAGRLTLTIIKARNLKAMDITGFSDPYVKVSLMCEGRRLKKKKTSVKKN 60
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
LNP +NE+ F+VP E + SL + V+D+D +G NELIG + G N G +HW
Sbjct: 61 TLNPTYNEALVFDVPPENVDNVSLIIAVVDYDRVGHNELIG-VCRVGPNADGQGR-EHWN 118
Query: 352 DMITKPRQTIVQWHRL 367
+M+ PR+ I QWH+L
Sbjct: 119 EMLANPRKPIAQWHQL 134
Score = 73.7 bits (181), Expect = 9e-16
Identities = 40/102 (39%), Positives = 62/102 (60%), Gaps = 3/102 (2%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKH--RLETKIKRR 160
G++ FSL Y L L +I A+ L A D++G SDPYVKV+L+ + + + +T +K+
Sbjct: 1 GELMFSLCYLPTAGRLTLTIIKARNLKAMDITGFSDPYVKVSLMCEGRRLKKKKTSVKKN 60
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIG 202
TLNP +NE L F+ P + + + L + V DYDR ++ IG
Sbjct: 61 TLNPTYNEALVFD-VPPENVDNVSLIIAVVDYDRVGHNELIG 101
>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 = 140 bits (356), Expect = 2e-40
Identities = 51/124 (41%), Positives = 77/124 (62%), Gaps = 2/124 (1%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDM-SGTSDPYVKVALLPDKKHRLETKIKRRT 161
G++ FS++YD + L + +I A+ LP + DP+VKV LLPD++ L++K+KR+T
Sbjct: 1 GRLWFSVQYDLEEEQLTVSLIKARNLPPRTKDVAHCDPFVKVCLLPDERRSLQSKVKRKT 60
Query: 162 LNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWK 221
NP ++ET F+ ++LQ R L L V+D DRFSR IG V PL +DL + W+
Sbjct: 61 QNPNFDETFVFQ-VSFKELQRRTLRLSVYDVDRFSRHCIIGHVLFPLKDLDLVKGGVVWR 119
Query: 222 ALKP 225
L+P
Sbjct: 120 DLEP 123
Score = 87.3 bits (217), Expect = 9e-21
Identities = 43/129 (33%), Positives = 66/129 (51%), Gaps = 11/129 (8%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGK-SDPYVKVWLQFGEKRIE----KRKT 286
G L S+ Y LT++L+KARNL + + DP+VKV L E+R KRKT
Sbjct: 1 GRLWFSVQYDLEEEQLTVSLIKARNLPPRTKDVAHCDPFVKVCLLPDERRSLQSKVKRKT 60
Query: 287 QIFKCNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASE 346
Q NP F+E+F F V +++++ +L + V D D R+ +IG +L K+
Sbjct: 61 Q------NPNFDETFVFQVSFKELQRRTLRLSVYDVDRFSRHCIIGHVLFPLKDLDLVKG 114
Query: 347 TKHWQDMIT 355
W+D+
Sbjct: 115 GVVWRDLEP 123
>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 = 139 bits (351), Expect = 1e-39
Identities = 54/117 (46%), Positives = 78/117 (66%), Gaps = 1/117 (0%)
Query: 101 NVGQIHFSLEYDFDNSTLILRVISAKELPAKD-MSGTSDPYVKVALLPDKKHRLETKIKR 159
+G + FSL Y+ + L++ +I ++LPA D SGTSDPYVK+ LLP+K+H+++T++ R
Sbjct: 1 KLGTLFFSLRYNSEKKALLVNIIECRDLPAMDEQSGTSDPYVKLQLLPEKEHKVKTRVLR 60
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEK 216
+T NP ++ET F G P +LQ LH V +DR+SRDD IGEV PL DL +
Sbjct: 61 KTRNPVYDETFTFYGIPYNQLQDLSLHFAVLSFDRYSRDDVIGEVVCPLAGADLLNE 117
Score = 75.1 bits (185), Expect = 2e-16
Identities = 42/129 (32%), Positives = 75/129 (58%), Gaps = 6/129 (4%)
Query: 230 KCGELLTSLCYHPSNSVLTITLLKARNLKAKDI-NGKSDPYVKVWLQFGEKRIEKRKTQI 288
K G L SL Y+ L + +++ R+L A D +G SDPYVK LQ ++ K KT++
Sbjct: 1 KLGTLFFSLRYNSEKKALLVNIIECRDLPAMDEQSGTSDPYVK--LQLLPEKEHKVKTRV 58
Query: 289 FKCNLNPVFNESFSF-NVPWEKIRECSLNVMVMDFDNIGRNELIGRIL--LAGKNGSGAS 345
+ NPV++E+F+F +P+ ++++ SL+ V+ FD R+++IG ++ LAG +
Sbjct: 59 LRKTRNPVYDETFTFYGIPYNQLQDLSLHFAVLSFDRYSRDDVIGEVVCPLAGADLLNEG 118
Query: 346 ETKHWQDMI 354
E +++
Sbjct: 119 ELLVSREIQ 127
>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 = 130 bits (328), Expect = 2e-36
Identities = 59/123 (47%), Positives = 87/123 (70%), Gaps = 1/123 (0%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTL 162
G++HFSLEYD D L +++I A+ L +D SGT+DPY KV LLPD+ + ++KI ++TL
Sbjct: 3 GELHFSLEYDKDMGILNVKLIQARNLQPRDFSGTADPYCKVRLLPDRSNTKQSKIHKKTL 62
Query: 163 NPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWKA 222
NP ++E+ FE P Q+L R L + ++D+D+FSRD+ IG V LPL +VDLSEK W+
Sbjct: 63 NPEFDESFVFE-VPPQELPKRTLEVLLYDFDQFSRDECIGVVELPLAEVDLSEKLDLWRK 121
Query: 223 LKP 225
++
Sbjct: 122 IQS 124
Score = 85.5 bits (212), Expect = 5e-20
Identities = 42/109 (38%), Positives = 64/109 (58%), Gaps = 2/109 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GEL SL Y +L + L++ARNL+ +D +G +DPY KV L ++++I K
Sbjct: 3 GELHFSLEYDKDMGILNVKLIQARNLQPRDFSGTADPYCKVRLLPDRSNT--KQSKIHKK 60
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKN 340
LNP F+ESF F VP +++ + +L V++ DFD R+E IG + L
Sbjct: 61 TLNPEFDESFVFEVPPQELPKRTLEVLLYDFDQFSRDECIGVVELPLAE 109
>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 = 119 bits (300), Expect = 3e-32
Identities = 56/136 (41%), Positives = 81/136 (59%), Gaps = 1/136 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GELL SL Y PS L + +++A+ L D++ SDP+VK+ L G K I+ +KT +
Sbjct: 1 GELLLSLNYLPSAGRLNVDIIRAKQLLQTDMSQGSDPFVKIQLVHGLKLIKTKKTSCMRG 60
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
++P +NESFSF VP E++ SL V + N+ IGRI++ G+ SG SET HW+
Sbjct: 61 TIDPFYNESFSFKVPQEELENVSLVFTVYGHNVKSSNDFIGRIVI-GQYSSGPSETNHWR 119
Query: 352 DMITKPRQTIVQWHRL 367
M+ R + QWH L
Sbjct: 120 RMLNSQRTAVEQWHSL 135
Score = 58.7 bits (142), Expect = 1e-10
Identities = 34/106 (32%), Positives = 58/106 (54%), Gaps = 3/106 (2%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKK--HRLETKIKRR 160
G++ SL Y L + +I AK+L DMS SDP+VK+ L+ K +T R
Sbjct: 1 GELLLSLNYLPSAGRLNVDIIRAKQLLQTDMSQGSDPFVKIQLVHGLKLIKTKKTSCMRG 60
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
T++P +NE+ F+ P ++L++ L V+ ++ S +D IG + +
Sbjct: 61 TIDPFYNESFSFK-VPQEELENVSLVFTVYGHNVKSSNDFIGRIVI 105
>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 = 115 bits (291), Expect = 7e-31
Identities = 48/136 (35%), Positives = 81/136 (59%), Gaps = 1/136 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G++ SL Y+P+ + LT+ +L+AR L+ D YVKV L K ++ +KT++
Sbjct: 2 GDIQISLTYNPTLNRLTVVVLRARGLRQLDHAHT-SVYVKVSLMIHNKVVKTKKTEVVDG 60
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
+P FNESFSF V ++ SL++ VM + +++L+GR++L + E +HW
Sbjct: 61 AASPSFNESFSFKVTSRQLDTASLSLSVMQSGGVRKSKLLGRVVLGPFMYARGKELEHWN 120
Query: 352 DMITKPRQTIVQWHRL 367
DM++KP++ I +WH L
Sbjct: 121 DMLSKPKELIKRWHAL 136
Score = 36.5 bits (85), Expect = 0.007
Identities = 23/75 (30%), Positives = 35/75 (46%), Gaps = 9/75 (12%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTL 162
G I SL Y+ + L + V+ A+ L D + T YVKV+L H K K+ +
Sbjct: 2 GDIQISLTYNPTLNRLTVVVLRARGLRQLDHAHT-SVYVKVSL---MIHNKVVKTKKTEV 57
Query: 163 -----NPRWNETLYF 172
+P +NE+ F
Sbjct: 58 VDGAASPSFNESFSF 72
>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 = 112 bits (283), Expect = 2e-30
Identities = 47/104 (45%), Positives = 64/104 (61%), Gaps = 3/104 (2%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFP 176
TL +++ISA+ LP KD G SDPYVKV+L D K + +TK+ + TLNP WNET FE
Sbjct: 1 TLTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEKKKTKVVKNTLNPVWNETFEFE--- 57
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFW 220
+ + L + V+D DRF RDD IG+V +PL + L +
Sbjct: 58 VPPPELAELEIEVYDKDRFGRDDFIGQVTIPLSDLLLGGRHEKL 101
Score = 94.1 bits (234), Expect = 2e-23
Identities = 42/91 (46%), Positives = 58/91 (63%), Gaps = 4/91 (4%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
LT+ ++ ARNL KD GKSDPYVKV L EK+KT++ K LNPV+NE+F F V
Sbjct: 1 TLTVKIISARNLPPKDKGGKSDPYVKVSL--DGDPKEKKKTKVVKNTLNPVWNETFEFEV 58
Query: 306 PWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
P ++ E L + V D D GR++ IG++ +
Sbjct: 59 PPPELAE--LEIEVYDKDRFGRDDFIGQVTI 87
>gnl|CDD|215765 pfam00168, C2, C2 domain.
Length = 85
Score = 111 bits (281), Expect = 4e-30
Identities = 46/87 (52%), Positives = 58/87 (66%), Gaps = 3/87 (3%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L + VISAK LP KD++G SDPYVKV+L KK +TK+ + TLNP WNET FE +
Sbjct: 1 LRVTVISAKNLPPKDLNGKSDPYVKVSLGGQKKDTKKTKVVKNTLNPVWNETFTFE---V 57
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEV 204
+ L + V+DYDRF +DD IGEV
Sbjct: 58 TLPELAELRIEVYDYDRFGKDDFIGEV 84
Score = 99.7 bits (249), Expect = 1e-25
Identities = 39/88 (44%), Positives = 61/88 (69%), Gaps = 4/88 (4%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L +T++ A+NL KD+NGKSDPYVKV L G ++ + +KT++ K LNPV+NE+F+F V
Sbjct: 1 LRVTVISAKNLPPKDLNGKSDPYVKVSL--GGQKKDTKKTKVVKNTLNPVWNETFTFEVT 58
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGRI 334
++ E L + V D+D G+++ IG +
Sbjct: 59 LPELAE--LRIEVYDYDRFGKDDFIGEV 84
>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 = 112 bits (281), Expect = 6e-30
Identities = 48/101 (47%), Positives = 66/101 (65%), Gaps = 5/101 (4%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L + VI A+ LPAKD++G SDPYVKV+L +K + TK+ + TLNP WNET FP+
Sbjct: 1 LRVTVIEARNLPAKDLNGKSDPYVKVSLGGKQKFK--TKVVKNTLNPVWNETFE---FPV 55
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPT 218
+S L + V+D DRFS+DD +GEV +PL ++ S K
Sbjct: 56 LDPESDTLTVEVWDKDRFSKDDFLGEVEIPLSELLDSGKEG 96
Score = 92.5 bits (230), Expect = 7e-23
Identities = 39/90 (43%), Positives = 56/90 (62%), Gaps = 6/90 (6%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L +T+++ARNL AKD+NGKSDPYVKV L +K KT++ K LNPV+NE+F F V
Sbjct: 1 LRVTVIEARNLPAKDLNGKSDPYVKVSL----GGKQKFKTKVVKNTLNPVWNETFEFPVL 56
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGRILL 336
+ L V V D D +++ +G + +
Sbjct: 57 DPESDT--LTVEVWDKDRFSKDDFLGEVEI 84
>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 = 107 bits (270), Expect = 4e-28
Identities = 50/119 (42%), Positives = 69/119 (57%), Gaps = 3/119 (2%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLP--DKKHRLETKIKRR 160
G + F+L YD NS L +I AK L A D +G SDPYVK+ LLP K +L TK +
Sbjct: 2 GTLEFTLLYDPANSALHCTIIRAKGLKAMDANGLSDPYVKLNLLPGASKATKLRTKTVHK 61
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
T NP +NETL + G + +Q + L L V D DRF +D +GE +PL ++ ++ F
Sbjct: 62 TRNPEFNETLTYYGITEEDIQRKTLRLLVLDEDRF-GNDFLGETRIPLKKLKPNQTKQF 119
Score = 76.6 bits (189), Expect = 6e-17
Identities = 43/108 (39%), Positives = 64/108 (59%), Gaps = 4/108 (3%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G L +L Y P+NS L T+++A+ LKA D NG SDPYVK+ L G + K +T+
Sbjct: 2 GTLEFTLLYDPANSALHCTIIRAKGLKAMDANGLSDPYVKLNLLPGASKATKLRTKTVHK 61
Query: 292 NLNPVFNESFSF-NVPWEKIRECSLNVMVMDFDNIGRNELIG--RILL 336
NP FNE+ ++ + E I+ +L ++V+D D G N+ +G RI L
Sbjct: 62 TRNPEFNETLTYYGITEEDIQRKTLRLLVLDEDRFG-NDFLGETRIPL 108
>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 = 106 bits (268), Expect = 1e-27
Identities = 47/117 (40%), Positives = 69/117 (58%), Gaps = 2/117 (1%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDK--KHRLETKIKRR 160
G+I L YD S LI+ V+ A++LP +D +PYVKV LLPD+ K + TK ++
Sbjct: 3 GRIQIQLWYDKVTSQLIVTVLQARDLPPRDDGSLRNPYVKVYLLPDRSEKSKRRTKTVKK 62
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKP 217
TLNP WN+T + + L+ R L + V+DYDR +D +GEV + L L ++P
Sbjct: 63 TLNPEWNQTFEYSNVRRETLKERTLEVTVWDYDRDGENDFLGEVVIDLADALLDDEP 119
Score = 71.9 bits (177), Expect = 3e-15
Identities = 38/106 (35%), Positives = 61/106 (57%), Gaps = 1/106 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G + L Y S L +T+L+AR+L +D +PYVKV+L KR+T+ K
Sbjct: 3 GRIQIQLWYDKVTSQLIVTVLQARDLPPRDDGSLRNPYVKVYLLPDRSEKSKRRTKTVKK 62
Query: 292 NLNPVFNESFSF-NVPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
LNP +N++F + NV E ++E +L V V D+D G N+ +G +++
Sbjct: 63 TLNPEWNQTFEYSNVRRETLKERTLEVTVWDYDRDGENDFLGEVVI 108
>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 = 101 bits (255), Expect = 6e-26
Identities = 47/124 (37%), Positives = 72/124 (58%), Gaps = 4/124 (3%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKEL-PAKDMSGTSDPYVKVALLPDKKHR--LETKIKR 159
G+I FSL Y++ +L + + + L A + S+PYVKV LLPDK + +T +K+
Sbjct: 1 GEIEFSLSYNYKTGSLEVHIKECRNLAYADEKKKRSNPYVKVYLLPDKSKQSKRKTSVKK 60
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
T NP +NETL + +L++R L L V+ +DRF R+ +GEV +PL DL + +
Sbjct: 61 NTTNPVFNETLKYH-ISKSQLETRTLQLSVWHHDRFGRNTFLGEVEIPLDSWDLDSQQSE 119
Query: 220 WKAL 223
W L
Sbjct: 120 WYPL 123
Score = 69.6 bits (171), Expect = 2e-14
Identities = 35/106 (33%), Positives = 57/106 (53%), Gaps = 1/106 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDI-NGKSDPYVKVWLQFGEKRIEKRKTQIFK 290
GE+ SL Y+ L + + + RNL D +S+PYVKV+L + + KRKT + K
Sbjct: 1 GEIEFSLSYNYKTGSLEVHIKECRNLAYADEKKKRSNPYVKVYLLPDKSKQSKRKTSVKK 60
Query: 291 CNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
NPVFNE+ +++ ++ +L + V D GRN +G + +
Sbjct: 61 NTTNPVFNETLKYHISKSQLETRTLQLSVWHHDRFGRNTFLGEVEI 106
>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 = 101 bits (253), Expect = 1e-25
Identities = 48/137 (35%), Positives = 79/137 (57%), Gaps = 2/137 (1%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
GE+L SL Y P+ LT+ ++KARNL + +DP+VKV+L ++I K+KT + +
Sbjct: 2 GEILLSLSYLPTAERLTVVVVKARNLVWDNGKTTADPFVKVYLLQDGRKISKKKTSVKRD 61
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
+ NP+FNE+ F+VP +++ SL V V + G+ +G +++ G SG HW
Sbjct: 62 DTNPIFNEAMIFSVPAIVLQDLSLRVTVAESTEDGKTPNVGHVII-GPAASGMG-LSHWN 119
Query: 352 DMITKPRQTIVQWHRLK 368
M+ R+ + WH L+
Sbjct: 120 QMLASLRKPVAMWHPLR 136
Score = 52.5 bits (126), Expect = 2e-08
Identities = 35/107 (32%), Positives = 53/107 (49%), Gaps = 3/107 (2%)
Query: 102 VGQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPD--KKHRLETKIKR 159
VG+I SL Y L + V+ A+ L + T+DP+VKV LL D K + +T +KR
Sbjct: 1 VGEILLSLSYLPTAERLTVVVVKARNLVWDNGKTTADPFVKVYLLQDGRKISKKKTSVKR 60
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
NP +NE + F P LQ L + V + + ++G V +
Sbjct: 61 DDTNPIFNEAMIFS-VPAIVLQDLSLRVTVAESTEDGKTPNVGHVII 106
>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 = 100 bits (252), Expect = 2e-25
Identities = 50/135 (37%), Positives = 75/135 (55%), Gaps = 4/135 (2%)
Query: 234 LLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNL 293
+L SL Y+ L + +++ NL A D NG SDP+VK++L+ + K KTQ+ K L
Sbjct: 2 ILVSLMYNTQRRGLIVGIIRCVNLAAMDANGYSDPFVKLYLKPDAGKKSKHKTQVKKKTL 61
Query: 294 NPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGR-NELIGRILLAGKNGSGASETKHWQD 352
NP FNE F +++ + + +L + V D D IG+ N+ IG + L G N G +HW D
Sbjct: 62 NPEFNEEFFYDIKHSDLAKKTLEITVWDKD-IGKSNDYIGGLQL-GINAKGE-RLRHWLD 118
Query: 353 MITKPRQTIVQWHRL 367
+ P + I WH L
Sbjct: 119 CLKNPDKKIEAWHTL 133
Score = 90.1 bits (224), Expect = 1e-21
Identities = 38/105 (36%), Positives = 60/105 (57%), Gaps = 3/105 (2%)
Query: 104 QIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPD--KKHRLETKIKRRT 161
+I SL Y+ LI+ +I L A D +G SDP+VK+ L PD KK + +T++K++T
Sbjct: 1 KILVSLMYNTQRRGLIVGIIRCVNLAAMDANGYSDPFVKLYLKPDAGKKSKHKTQVKKKT 60
Query: 162 LNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
LNP +NE +++ L + L + V+D D +D IG + L
Sbjct: 61 LNPEFNEEFFYD-IKHSDLAKKTLEITVWDKDIGKSNDYIGGLQL 104
>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 = 94.8 bits (236), Expect = 2e-23
Identities = 48/125 (38%), Positives = 71/125 (56%), Gaps = 4/125 (3%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKEL-PAKDMSGTSDPYVKVALLPDKKHR--LETKIKR 159
G + F+L+YD L + VI ++L A SDPYVK LLPDK +R +T +K+
Sbjct: 2 GSVQFALDYDPKLRELHVHVIQCQDLAAADPKKQRSDPYVKTYLLPDKSNRGKRKTSVKK 61
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
+TLNP +NETL ++ ++L +RVL+L V+ D R+ +GEV + L D S
Sbjct: 62 KTLNPVFNETLRYK-VEREELPTRVLNLSVWHRDSLGRNSFLGEVEVDLGSWDWSNTQPT 120
Query: 220 WKALK 224
W L+
Sbjct: 121 WYPLQ 125
Score = 75.5 bits (186), Expect = 2e-16
Identities = 36/99 (36%), Positives = 56/99 (56%), Gaps = 1/99 (1%)
Query: 237 SLCYHPSNSVLTITLLKARNLKAKDIN-GKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNP 295
+L Y P L + +++ ++L A D +SDPYVK +L + KRKT + K LNP
Sbjct: 7 ALDYDPKLRELHVHVIQCQDLAAADPKKQRSDPYVKTYLLPDKSNRGKRKTSVKKKTLNP 66
Query: 296 VFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRI 334
VFNE+ + V E++ LN+ V D++GRN +G +
Sbjct: 67 VFNETLRYKVEREELPTRVLNLSVWHRDSLGRNSFLGEV 105
>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 = 91.6 bits (228), Expect = 3e-22
Identities = 51/125 (40%), Positives = 76/125 (60%), Gaps = 7/125 (5%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTS-DPYVKVALLPD--KKHRLETKIKR 159
GQ+ S+ Y N TL + V+ AK LP D G+ DPYVK LLPD K + +TK+ R
Sbjct: 2 GQVKLSISYK--NGTLFVMVMHAKNLPLLD--GSDPDPYVKTYLLPDPQKTTKRKTKVVR 57
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
+T NP +NE L ++G P++ LQ RVL + V+ +D ++ +G V +PL ++DLS++
Sbjct: 58 KTRNPTFNEMLVYDGLPVEDLQQRVLQVSVWSHDSLVENEFLGGVCIPLKKLDLSQETEK 117
Query: 220 WKALK 224
W L
Sbjct: 118 WYPLG 122
Score = 56.9 bits (138), Expect = 5e-10
Identities = 37/121 (30%), Positives = 63/121 (52%), Gaps = 4/121 (3%)
Query: 231 CGELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFK 290
G++ S+ Y N L + ++ A+NL D DPYVK +L ++ KRKT++ +
Sbjct: 1 GGQVKLSISY--KNGTLFVMVMHAKNLPLLD-GSDPDPYVKTYLLPDPQKTTKRKTKVVR 57
Query: 291 CNLNPVFNESFSFN-VPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKH 349
NP FNE ++ +P E +++ L V V D++ NE +G + + K + ET+
Sbjct: 58 KTRNPTFNEMLVYDGLPVEDLQQRVLQVSVWSHDSLVENEFLGGVCIPLKKLDLSQETEK 117
Query: 350 W 350
W
Sbjct: 118 W 118
>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 = 90.9 bits (226), Expect = 7e-22
Identities = 46/136 (33%), Positives = 68/136 (50%), Gaps = 2/136 (1%)
Query: 233 ELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGE-KRIEKRKTQIFKC 291
ELL L Y+ L++ ++K N K +N D YVK+ L + + I K KT I +
Sbjct: 3 ELLLGLEYNALTGRLSVEVIKGSNFKNLAMNKAPDTYVKLTLLNSDGQEISKSKTSIRRG 62
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
+P F E+F F V ++ E +L V + + R E+IG L G N SG E +HW
Sbjct: 63 QPDPEFKETFVFQVALFQLSEVTLMFSVYNKRKMKRKEMIGWFSL-GLNSSGEEEEEHWN 121
Query: 352 DMITKPRQTIVQWHRL 367
+M Q + +WH L
Sbjct: 122 EMKESKGQQVCRWHTL 137
Score = 35.8 bits (83), Expect = 0.013
Identities = 26/102 (25%), Positives = 44/102 (43%), Gaps = 4/102 (3%)
Query: 104 QIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRL---ETKIKRR 160
++ LEY+ L + VI M+ D YVK+ LL + +T I+R
Sbjct: 3 ELLLGLEYNALTGRLSVEVIKGSNFKNLAMNKAPDTYVKLTLLNSDGQEISKSKTSIRRG 62
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIG 202
+P + ET F+ + +L L V++ + R + IG
Sbjct: 63 QPDPEFKETFVFQ-VALFQLSEVTLMFSVYNKRKMKRKEMIG 103
>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 = 88.9 bits (220), Expect = 4e-21
Identities = 49/139 (35%), Positives = 86/139 (61%), Gaps = 6/139 (4%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNL---KAKDINGKSDPYVKVWLQFGEKRIEKRKTQI 288
GE+L S+ Y P+ + L + ++KA+NL + K + G D VKV L+ +++K++T+
Sbjct: 2 GEVLLSISYLPAANRLLVVVIKAKNLHSDQLKLLLGI-DVSVKVTLKHQNAKLKKKQTKR 60
Query: 289 FKCNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETK 348
K +NPV+NE F +P E + S+ + V++ D+ G++ +GR L G + SG +E +
Sbjct: 61 AKHKINPVWNEMIMFELPSELLAASSVELEVLNQDSPGQSLPLGRCSL-GLHTSG-TERQ 118
Query: 349 HWQDMITKPRQTIVQWHRL 367
HW++M+ PR+ I WH+L
Sbjct: 119 HWEEMLDNPRRQIAMWHQL 137
Score = 35.0 bits (80), Expect = 0.029
Identities = 37/131 (28%), Positives = 61/131 (46%), Gaps = 8/131 (6%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPA---KDMSGTSDPYVKVALLPD--KKHRLETKI 157
G++ S+ Y + L++ VI AK L + K + G D VKV L K + +TK
Sbjct: 2 GEVLLSISYLPAANRLLVVVIKAKNLHSDQLKLLLGI-DVSVKVTLKHQNAKLKKKQTKR 60
Query: 158 KRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKP 217
+ +NP WNE + FE P + L + + L V + D + +G L L +E+
Sbjct: 61 AKHKINPVWNEMIMFE-LPSELLAASSVELEVLNQDSPGQSLPLGRCSLGL-HTSGTERQ 118
Query: 218 TFWKALKPPAK 228
+ + L P +
Sbjct: 119 HWEEMLDNPRR 129
>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 = 88.1 bits (219), Expect = 6e-21
Identities = 38/90 (42%), Positives = 58/90 (64%), Gaps = 3/90 (3%)
Query: 244 NSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSF 303
++ LT+ + +A+NL D NG SDPYVK+ L K K+KT+ K LNPV+NE+F+F
Sbjct: 12 DNKLTVEVREAKNLIPMDPNGLSDPYVKLKLIPDPKNETKQKTKTIKKTLNPVWNETFTF 71
Query: 304 NV-PWEKIRECSLNVMVMDFDNIGRNELIG 332
++ P +K R L++ V D+D RN+ +G
Sbjct: 72 DLKPADKDR--RLSIEVWDWDRTTRNDFMG 99
Score = 85.4 bits (212), Expect = 5e-20
Identities = 41/102 (40%), Positives = 61/102 (59%), Gaps = 6/102 (5%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLE--TKIKRR 160
G+I+ + ++ L + V AK L D +G SDPYVK+ L+PD K+ + TK ++
Sbjct: 2 GRIYLKISVK--DNKLTVEVREAKNLIPMDPNGLSDPYVKLKLIPDPKNETKQKTKTIKK 59
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIG 202
TLNP WNET F+ P K R L + V+D+DR +R+D +G
Sbjct: 60 TLNPVWNETFTFDLKPADK--DRRLSIEVWDWDRTTRNDFMG 99
>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 = 87.3 bits (217), Expect = 1e-20
Identities = 43/126 (34%), Positives = 66/126 (52%), Gaps = 5/126 (3%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKK--HRLETKIKRR 160
G+I ++ Y LI+ V + LP D S DPYV++ LLPDK R +T +K+
Sbjct: 3 GRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSDIPDPYVRLYLLPDKSKSTRRKTSVKKD 62
Query: 161 TLNPRWNETLYFEGFPIQKLQSRVLHLHV-FDYDRFSRD-DSIGEVFLPLCQVDLSEKPT 218
LNP ++ET F +++L+ R L + V SR+ +G+V + L +DLS+ T
Sbjct: 63 NLNPVFDETFEFP-VSLEELKRRTLDVAVKNSKSFLSREKKLLGQVLIDLSDLDLSKGFT 121
Query: 219 FWKALK 224
W L
Sbjct: 122 QWYDLT 127
Score = 73.1 bits (180), Expect = 1e-15
Identities = 32/88 (36%), Positives = 52/88 (59%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G + ++ Y L +T+ K RNL D + DPYV+++L + + +RKT + K
Sbjct: 3 GRIQLTIRYSSQRQKLIVTVHKCRNLPPCDSSDIPDPYVRLYLLPDKSKSTRRKTSVKKD 62
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMV 319
NLNPVF+E+F F V E+++ +L+V V
Sbjct: 63 NLNPVFDETFEFPVSLEELKRRTLDVAV 90
>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 = 87.3 bits (217), Expect = 1e-20
Identities = 41/101 (40%), Positives = 53/101 (52%), Gaps = 10/101 (9%)
Query: 239 CYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEK--RIEKRKTQIFKCNLNPV 296
Y S L + +L ARNL D NG SDP+VKV L + KTQ+ K L P+
Sbjct: 10 YYRASEQSLRVEILNARNLLPLDSNGSSDPFVKVELLPRHLFPDVPTPKTQVKKKTLFPL 69
Query: 297 FNESFSFNVPWEKIRECSLNVM-----VMDFDNIGRNELIG 332
F+ESF FNVP E +CS+ V D+D +G N+ G
Sbjct: 70 FDESFEFNVPPE---QCSVEGALLLFTVKDYDLLGSNDFEG 107
Score = 85.0 bits (211), Expect = 7e-20
Identities = 38/116 (32%), Positives = 60/116 (51%), Gaps = 9/116 (7%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHR------LETK 156
G + Y +L + +++A+ L D +G+SDP+VKV LLP +H +T+
Sbjct: 3 GVLTVKAYYRASEQSLRVEILNARNLLPLDSNGSSDPFVKVELLP--RHLFPDVPTPKTQ 60
Query: 157 IKRRTLNPRWNETLYFEGFPIQKLQ-SRVLHLHVFDYDRFSRDDSIGEVFLPLCQV 211
+K++TL P ++E+ F P Q +L V DYD +D GE FLPL +
Sbjct: 61 VKKKTLFPLFDESFEFNVPPEQCSVEGALLLFTVKDYDLLGSNDFEGEAFLPLNDI 116
>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 = 83.9 bits (208), Expect = 3e-19
Identities = 43/133 (32%), Positives = 65/133 (48%), Gaps = 14/133 (10%)
Query: 102 VGQIHFSLEYDFDNSTLILR------------VISAKELPAKDMSGTSDPYVKVALLPD- 148
G++ +L+Y S L+ V AK LPA GTSD +VK LLPD
Sbjct: 1 RGELKVALKYVPPESEGALKSKKPSTGELHVWVKEAKNLPALKSGGTSDSFVKCYLLPDK 60
Query: 149 -KKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLP 207
KK + +T + ++++NP WN T ++G + L L L V+D+D+ S +D +G V L
Sbjct: 61 SKKSKQKTPVVKKSVNPVWNHTFVYDGVSPEDLSQACLELTVWDHDKLSSNDFLGGVRLG 120
Query: 208 LCQVDLSEKPTFW 220
L + W
Sbjct: 121 LGTGKSYGQAVDW 133
Score = 72.0 bits (177), Expect = 7e-15
Identities = 39/134 (29%), Positives = 64/134 (47%), Gaps = 13/134 (9%)
Query: 232 GELLTSLCY------------HPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEK 279
GEL +L Y PS L + + +A+NL A G SD +VK +L +
Sbjct: 2 GELKVALKYVPPESEGALKSKKPSTGELHVWVKEAKNLPALKSGGTSDSFVKCYLLPDKS 61
Query: 280 RIEKRKTQIFKCNLNPVFNESFSFN-VPWEKIRECSLNVMVMDFDNIGRNELIGRILLAG 338
+ K+KT + K ++NPV+N +F ++ V E + + L + V D D + N+ +G + L
Sbjct: 62 KKSKQKTPVVKKSVNPVWNHTFVYDGVSPEDLSQACLELTVWDHDKLSSNDFLGGVRLGL 121
Query: 339 KNGSGASETKHWQD 352
G + W D
Sbjct: 122 GTGKSYGQAVDWMD 135
>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 = 82.6 bits (205), Expect = 4e-19
Identities = 37/84 (44%), Positives = 51/84 (60%), Gaps = 9/84 (10%)
Query: 252 LKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFN--VPWEK 309
++ARNL+ KD NGKSDPY+K+ L G+K+I R I LNPVF + F +P
Sbjct: 7 VRARNLQPKDPNGKSDPYLKIKL--GKKKINDRDNYI-PNTLNPVFGKMFELEATLPGNS 63
Query: 310 IRECSLNVMVMDFDNIGRNELIGR 333
I L + VMD+D +G ++LIG
Sbjct: 64 I----LKISVMDYDLLGSDDLIGE 83
Score = 66.8 bits (164), Expect = 2e-13
Identities = 32/93 (34%), Positives = 42/93 (45%), Gaps = 11/93 (11%)
Query: 122 VISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEG-FPIQKL 180
V+ A+ L KD +G SDPY+K+ L KK TLNP + + E P +
Sbjct: 6 VVRARNLQPKDPNGKSDPYLKIKLG-KKKINDRDNYIPNTLNPVFGKMFELEATLPGNSI 64
Query: 181 QSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDL 213
L + V DYD DD IGE +DL
Sbjct: 65 ----LKISVMDYDLLGSDDLIGETV-----IDL 88
>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 = 81.1 bits (201), Expect = 1e-18
Identities = 37/103 (35%), Positives = 59/103 (57%), Gaps = 6/103 (5%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L + VISA+ LP+ D +G SDP+VK L + + +TK ++TLNP WNE+ P+
Sbjct: 1 LTVDVISAENLPSADRNGKSDPFVKFYL--NGEKVFKTKTIKKTLNPVWNESF---EVPV 55
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFW 220
VL + V+D+DR +DD +G ++ L ++ E+ T
Sbjct: 56 PSRVRAVLKVEVYDWDRGGKDDLLGSAYIDLSDLE-PEETTEL 97
Score = 77.6 bits (192), Expect = 2e-17
Identities = 40/87 (45%), Positives = 55/87 (63%), Gaps = 6/87 (6%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
LT+ ++ A NL + D NGKSDP+VK +L GEK KT+ K LNPV+NESF VP
Sbjct: 1 LTVDVISAENLPSADRNGKSDPFVKFYLN-GEKVF---KTKTIKKTLNPVWNESFEVPVP 56
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGR 333
++R L V V D+D G+++L+G
Sbjct: 57 -SRVR-AVLKVEVYDWDRGGKDDLLGS 81
>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 = 79.8 bits (197), Expect = 4e-18
Identities = 48/124 (38%), Positives = 69/124 (55%), Gaps = 4/124 (3%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGT-SDPYVKVALLPDK--KHRLETKIKR 159
G+I FSL YD+ +L + V + L D + S+PYVK LLPDK + + +T IKR
Sbjct: 2 GEILFSLSYDYKTQSLNVHVKECRNLAYGDEAKKRSNPYVKTYLLPDKSRQSKRKTSIKR 61
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
T NP +NETL + +L++R L L V+ YDRF R+ +GEV +PL + +
Sbjct: 62 NTTNPVYNETLKYS-ISHSQLETRTLQLSVWHYDRFGRNTFLGEVEIPLDSWNFDSQHEE 120
Query: 220 WKAL 223
L
Sbjct: 121 CLPL 124
Score = 57.8 bits (140), Expect = 2e-10
Identities = 34/104 (32%), Positives = 56/104 (53%), Gaps = 1/104 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLK-AKDINGKSDPYVKVWLQFGEKRIEKRKTQIFK 290
GE+L SL Y L + + + RNL + +S+PYVK +L + R KRKT I +
Sbjct: 2 GEILFSLSYDYKTQSLNVHVKECRNLAYGDEAKKRSNPYVKTYLLPDKSRQSKRKTSIKR 61
Query: 291 CNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRI 334
NPV+NE+ +++ ++ +L + V +D GRN +G +
Sbjct: 62 NTTNPVYNETLKYSISHSQLETRTLQLSVWHYDRFGRNTFLGEV 105
>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 = 79.2 bits (196), Expect = 6e-18
Identities = 37/102 (36%), Positives = 55/102 (53%), Gaps = 7/102 (6%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFP 176
L + + + L A+D GTSDPYVK K ++K + LNP W+E P
Sbjct: 1 QLDIHLKEGRNLAARDRGGTSDPYVKFKY--GGKTVYKSKTIYKNLNPVWDEKF---TLP 55
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPT 218
I+ + ++ L++ VFDYDR DD +G F+ L ++L KPT
Sbjct: 56 IEDV-TQPLYIKVFDYDRGLTDDFMGSAFVDLSTLEL-NKPT 95
Score = 61.1 bits (149), Expect = 2e-11
Identities = 34/77 (44%), Positives = 47/77 (61%), Gaps = 7/77 (9%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L I L + RNL A+D G SDPYVK ++G K + K KT I+K NLNPV++E F+ +
Sbjct: 2 LDIHLKEGRNLAARDRGGTSDPYVKF--KYGGKTVYKSKT-IYK-NLNPVWDEKFTLPI- 56
Query: 307 WEKIRECSLNVMVMDFD 323
E + L + V D+D
Sbjct: 57 -EDV-TQPLYIKVFDYD 71
>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 = 79.2 bits (196), Expect = 7e-18
Identities = 43/124 (34%), Positives = 67/124 (54%), Gaps = 1/124 (0%)
Query: 102 VGQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRT 161
G + + EYD L + VI A+++P KD G S V + LLP KK R +TK++R
Sbjct: 2 CGDLDVAFEYDPSARKLTVTVIRAQDIPTKDRGGASSWQVHLVLLPSKKQRAKTKVQRGP 61
Query: 162 LNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWK 221
NP +NET F ++L + L ++ +R ++ IGE +PL Q++L + T W
Sbjct: 62 -NPVFNETFTFSRVEPEELNNMALRFRLYGVERMRKERLIGEKVVPLSQLNLEGETTVWL 120
Query: 222 ALKP 225
L+P
Sbjct: 121 TLEP 124
Score = 53.4 bits (129), Expect = 7e-09
Identities = 34/104 (32%), Positives = 60/104 (57%), Gaps = 4/104 (3%)
Query: 230 KCGELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIF 289
KCG+L + Y PS LT+T+++A+++ KD G S V + L +K ++ KT++
Sbjct: 1 KCGDLDVAFEYDPSARKLTVTVIRAQDIPTKDRGGASSWQVHLVLLPSKK--QRAKTKVQ 58
Query: 290 KCNLNPVFNESFSFN-VPWEKIRECSLNVMVMDFDNIGRNELIG 332
+ NPVFNE+F+F+ V E++ +L + + + + LIG
Sbjct: 59 RGP-NPVFNETFTFSRVEPEELNNMALRFRLYGVERMRKERLIG 101
>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 = 73.5 bits (181), Expect = 1e-15
Identities = 37/95 (38%), Positives = 59/95 (62%), Gaps = 8/95 (8%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHR----LETKIKRRTLNPRWNETLYFE 173
L ++V++ +L KD+ G SDPYVK++L + ++TK ++TLNP+WNE +F
Sbjct: 2 LRVKVLAGIDLAKKDIFGASDPYVKISLYDPDGNGEIDSVQTKTIKKTLNPKWNEEFFFR 61
Query: 174 GFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
P + R+L VFD +R +RDD +G+V +PL
Sbjct: 62 VNPR---EHRLL-FEVFDENRLTRDDFLGQVEVPL 92
Score = 50.4 bits (121), Expect = 1e-07
Identities = 33/89 (37%), Positives = 47/89 (52%), Gaps = 5/89 (5%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQ--FGEKRIEKRKTQIFKCNLNPVFNESFSF 303
+L + +L +L KDI G SDPYVK+ L G I+ +T+ K LNP +NE F F
Sbjct: 1 ILRVKVLAGIDLAKKDIFGASDPYVKISLYDPDGNGEIDSVQTKTIKKTLNPKWNEEFFF 60
Query: 304 NVPWEKIRECSLNVMVMDFDNIGRNELIG 332
V RE L V D + + R++ +G
Sbjct: 61 RV---NPREHRLLFEVFDENRLTRDDFLG 86
>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 = 72.1 bits (177), Expect = 2e-15
Identities = 42/114 (36%), Positives = 63/114 (55%), Gaps = 13/114 (11%)
Query: 118 LILRV--ISAKELPAKDMS--GTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFE 173
+LRV + AK+L AKD S G SDPY +++ R +T+ TLNP+WN Y+
Sbjct: 1 GVLRVHVVEAKDLAAKDRSGKGKSDPYAILSV---GAQRFKTQTIPNTLNPKWN---YWC 54
Query: 174 GFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV---DLSEKPTFWKALK 224
FPI Q+++L L ++D DRF+ D +GE + L +V + + W LK
Sbjct: 55 EFPIFSAQNQLLKLILWDKDRFAGKDYLGEFDIALEEVFADGKTGQSDKWITLK 108
Score = 52.8 bits (127), Expect = 1e-08
Identities = 36/143 (25%), Positives = 61/143 (42%), Gaps = 21/143 (14%)
Query: 246 VLTITLLKARNLKAKDI--NGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSF 303
VL + +++A++L AKD GKSDPY + + G +R KTQ LNP +N +
Sbjct: 2 VLRVHVVEAKDLAAKDRSGKGKSDPYAILSV--GAQRF---KTQTIPNTLNPKWN--YWC 54
Query: 304 NVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQDMITKPRQTIVQ 363
P + L +++ D D + +G +A + +T +
Sbjct: 55 EFPIFSAQNQLLKLILWDKDRFAGKDYLGEFDIALEEVFADGKT-----------GQSDK 103
Query: 364 WHRLKPDHEMQTFLQSVGVSHIR 386
W LK +T + S G H++
Sbjct: 104 WITLKSTRPGKTSVVS-GEIHLQ 125
>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 = 70.4 bits (173), Expect = 6e-15
Identities = 35/107 (32%), Positives = 58/107 (54%), Gaps = 13/107 (12%)
Query: 121 RVISAKELPAKD-MSGTSDPYVKVAL--LPDKKHRLETKIKRRTLNPRWN-ETLYFEGFP 176
RV++A++LP D S +D +V+V K T + +++LNP WN E FE
Sbjct: 4 RVVAARDLPVMDRSSDLTDAFVEVKFGSTTYK-----TDVVKKSLNPVWNSEWFRFE-VD 57
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFL---PLCQVDLSEKPTFW 220
++LQ L + V D+D +S +D+IG+V++ PL D + + W
Sbjct: 58 DEELQDEPLQIRVMDHDTYSANDAIGKVYIDLNPLLLKDSVSQISGW 104
Score = 53.9 bits (130), Expect = 4e-09
Identities = 31/92 (33%), Positives = 52/92 (56%), Gaps = 7/92 (7%)
Query: 247 LTITLLKARNLKAKD-INGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFN-ESFSFN 304
L + ++ AR+L D + +D +V+V +FG KT + K +LNPV+N E F F
Sbjct: 1 LKVRVVAARDLPVMDRSSDLTDAFVEV--KFGST---TYKTDVVKKSLNPVWNSEWFRFE 55
Query: 305 VPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
V E++++ L + VMD D N+ IG++ +
Sbjct: 56 VDDEELQDEPLQIRVMDHDTYSANDAIGKVYI 87
>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 = 70.0 bits (172), Expect = 1e-14
Identities = 38/107 (35%), Positives = 59/107 (55%), Gaps = 9/107 (8%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L ++VI A L A D+ G SDP+ + L+ RL+T +TLNP WN+ FPI
Sbjct: 3 LQVKVIRASGLAAADIGGKSDPFCVLELVNA---RLQTHTIYKTLNPEWNKIF---TFPI 56
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWKALK 224
+ + VL + V+D D+ + + +G+V +PL + E+ W ALK
Sbjct: 57 KDIHD-VLEVTVYDEDKDKKPEFLGKVAIPLLSIKNGERK--WYALK 100
Score = 61.2 bits (149), Expect = 1e-11
Identities = 35/99 (35%), Positives = 55/99 (55%), Gaps = 13/99 (13%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQ-IFKCNLNPVFNESFSFNV 305
L + +++A L A DI GKSDP+ L+ R+ +T I+K LNP +N+ F+F +
Sbjct: 3 LQVKVIRASGLAAADIGGKSDPFCV--LELVNARL---QTHTIYK-TLNPEWNKIFTFPI 56
Query: 306 PWEKIRECSLNVMVMDFDNIGRNELIGRI---LLAGKNG 341
+ I + L V V D D + E +G++ LL+ KNG
Sbjct: 57 --KDIHDV-LEVTVYDEDKDKKPEFLGKVAIPLLSIKNG 92
>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 = 69.7 bits (171), Expect = 2e-14
Identities = 38/121 (31%), Positives = 59/121 (48%), Gaps = 14/121 (11%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRL-ETKIKRRTLNPRWNETLYFE--- 173
L +RV+ ++L K +GT DP+ +V L K TK+K++T NPR++E YFE
Sbjct: 1 LSVRVLECRDLALKS-NGTCDPFARVTLNYSSKTDTKRTKVKKKTNNPRFDEAFYFELTI 59
Query: 174 GFPIQKLQSRVLHLH---------VFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWKALK 224
GF +K +V ++ S DD +GEV +PL + + W L+
Sbjct: 60 GFSYEKKSFKVEEEDLEKSELRVELWHASMVSGDDFLGEVRIPLQGLQQAGSHQAWYFLQ 119
Query: 225 P 225
P
Sbjct: 120 P 120
Score = 50.8 bits (122), Expect = 7e-08
Identities = 26/101 (25%), Positives = 45/101 (44%), Gaps = 15/101 (14%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV- 305
L++ +L+ R+L K NG DP+ +V L + K KR K N NP F+E+F F +
Sbjct: 1 LSVRVLECRDLALK-SNGTCDPFARVTLNYSSKTDTKRTKVKKKTN-NPRFDEAFYFELT 58
Query: 306 ------------PWEKIRECSLNVMVMDFDNIGRNELIGRI 334
E + + L V + + ++ +G +
Sbjct: 59 IGFSYEKKSFKVEEEDLEKSELRVELWHASMVSGDDFLGEV 99
>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 = 69.1 bits (169), Expect = 2e-14
Identities = 39/124 (31%), Positives = 66/124 (53%), Gaps = 8/124 (6%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFP 176
L V+ A++L KD +GTSDP+V+V LET + +++ PRWNE FE
Sbjct: 1 RLRCHVLEARDLAPKDRNGTSDPFVRVFY---NGQTLETSVVKKSCYPRWNEVFEFE--- 54
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWKALKP--PAKDKCGEL 234
+ + L + V+D+D S++D +G+V + + +++ W L P A+++ G
Sbjct: 55 LMEGADSPLSVEVWDWDLVSKNDFLGKVVFSIQTLQQAKQEEGWFRLLPDPRAEEESGGN 114
Query: 235 LTSL 238
L SL
Sbjct: 115 LGSL 118
Score = 55.6 bits (134), Expect = 1e-09
Identities = 31/104 (29%), Positives = 58/104 (55%), Gaps = 7/104 (6%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L +L+AR+L KD NG SDP+V+V + + +E T + K + P +NE F F +
Sbjct: 2 LRCHVLEARDLAPKDRNGTSDPFVRV--FYNGQTLE---TSVVKKSCYPRWNEVFEFELM 56
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHW 350
+ + L+V V D+D + +N+ +G+++ + + A + + W
Sbjct: 57 --EGADSPLSVEVWDWDLVSKNDFLGKVVFSIQTLQQAKQEEGW 98
>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 = 68.9 bits (169), Expect = 5e-14
Identities = 34/91 (37%), Positives = 50/91 (54%), Gaps = 8/91 (8%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L +RV+ L +D +SDPYV + L K ++T++ ++ LNP WNE L +
Sbjct: 4 LKVRVVRGTNLAVRDF-TSSDPYVVLTLGNQK---VKTRVIKKNLNPVWNEELTLS---V 56
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
+ L L VFD D FS+DDS+GE + L
Sbjct: 57 PNPMA-PLKLEVFDKDTFSKDDSMGEAEIDL 86
Score = 44.6 bits (106), Expect = 1e-05
Identities = 24/61 (39%), Positives = 37/61 (60%), Gaps = 6/61 (9%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
+L + +++ NL +D SDPYV + L G +K KT++ K NLNPV+NE + +V
Sbjct: 3 LLKVRVVRGTNLAVRDFTS-SDPYVVLTL--GN---QKVKTRVIKKNLNPVWNEELTLSV 56
Query: 306 P 306
P
Sbjct: 57 P 57
>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 = 5e-14
Identities = 42/119 (35%), Positives = 62/119 (52%), Gaps = 4/119 (3%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTS-DPYVKVALLPDKKH--RLETKIKR 159
G+I F+L Y+F S L + + + + L D PYVKV LLPDK H + +T +K+
Sbjct: 2 GEIEFALHYNFRTSCLEITIKACRNLAYGDEKKKKCHPYVKVCLLPDKSHNSKRKTAVKK 61
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPT 218
T+NP +NETL + L SR L + V+ R +GEV +PL D + +
Sbjct: 62 GTVNPVFNETLKYVVEADL-LSSRQLQVSVWHSRTLKRRVFLGEVLIPLADWDFEDTDS 119
Score = 49.8 bits (119), Expect = 1e-07
Identities = 37/106 (34%), Positives = 52/106 (49%), Gaps = 1/106 (0%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKS-DPYVKVWLQFGEKRIEKRKTQIFK 290
GE+ +L Y+ S L IT+ RNL D K PYVKV L + KRKT + K
Sbjct: 2 GEIEFALHYNFRTSCLEITIKACRNLAYGDEKKKKCHPYVKVCLLPDKSHNSKRKTAVKK 61
Query: 291 CNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
+NPVFNE+ + V + + L V V + R +G +L+
Sbjct: 62 GTVNPVFNETLKYVVEADLLSSRQLQVSVWHSRTLKRRVFLGEVLI 107
>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 = 67.0 bits (164), Expect = 2e-13
Identities = 31/95 (32%), Positives = 50/95 (52%), Gaps = 4/95 (4%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L++ V+ A++L KD G+S YV++ +K R T+ K + LNP WNE L F
Sbjct: 2 LVVEVVDAQDLMPKDGQGSSSAYVELDFD-GQKKR--TRTKPKDLNPVWNEKLVFNVSDP 58
Query: 178 QKLQSRVLHLHVFDYDRFSRDDS-IGEVFLPLCQV 211
+L + VL ++V++ R R S +G V +
Sbjct: 59 SRLSNLVLEVYVYNDRRSGRRRSFLGRVRISGTSF 93
Score = 41.9 bits (99), Expect = 8e-05
Identities = 33/103 (32%), Positives = 52/103 (50%), Gaps = 9/103 (8%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV- 305
L + ++ A++L KD G S YV++ F ++ KR K +LNPV+NE FNV
Sbjct: 2 LVVEVVDAQDLMPKDGQGSSSAYVEL--DFDGQK--KRTRTKPK-DLNPVWNEKLVFNVS 56
Query: 306 -PWEKIRECSLNVMVMDFDNIGR-NELIGRILLAGKNGSGASE 346
P ++ L V V + GR +GR+ ++G + SE
Sbjct: 57 DP-SRLSNLVLEVYVYNDRRSGRRRSFLGRVRISGTSFVPPSE 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 = 65.7 bits (161), Expect = 3e-13
Identities = 26/85 (30%), Positives = 41/85 (48%), Gaps = 8/85 (9%)
Query: 120 LRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF-PIQ 178
+RVI A++L G DP VKV + KK+ T +K+ T P +NE +F
Sbjct: 8 VRVIEARQLV----GGNIDPVVKVEVGGQKKY---TSVKKGTNCPFYNEYFFFNFHESPD 60
Query: 179 KLQSRVLHLHVFDYDRFSRDDSIGE 203
+L +++ + V+D D IG
Sbjct: 61 ELFDKIIKISVYDSRSLRSDTLIGS 85
Score = 52.6 bits (127), Expect = 1e-08
Identities = 26/87 (29%), Positives = 42/87 (48%), Gaps = 13/87 (14%)
Query: 249 ITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV--- 305
+ +++AR L G DP VKV + G +K+ T + K P +NE F FN
Sbjct: 8 VRVIEARQLV----GGNIDPVVKV--EVGG---QKKYTSVKKGTNCPFYNEYFFFNFHES 58
Query: 306 PWEKIRECSLNVMVMDFDNIGRNELIG 332
P E + + + + V D ++ + LIG
Sbjct: 59 PDE-LFDKIIKISVYDSRSLRSDTLIG 84
>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 = 66.2 bits (162), Expect = 5e-13
Identities = 39/117 (33%), Positives = 58/117 (49%), Gaps = 33/117 (28%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPD----------KKHRLE------------- 154
L + VI AK L AKD++G SDPY + ++P K+
Sbjct: 30 LKVTVIEAKGLLAKDVNGFSDPYCMLGIVPASRERNSEKSKKRKSHRKKAVLKDTVPAKS 89
Query: 155 ---TKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
T++K +TLNP WNET FE ++ + + LHL ++D+D DD +G V +PL
Sbjct: 90 IKVTEVKPQTLNPVWNETFRFE---VEDVSNDQLHLDIWDHD----DDFLGCVNIPL 139
Score = 50.8 bits (122), Expect = 1e-07
Identities = 29/102 (28%), Positives = 46/102 (45%), Gaps = 26/102 (25%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRK-------------------- 285
VL +T+++A+ L AKD+NG SDPY + + + K
Sbjct: 29 VLKVTVIEAKGLLAKDVNGFSDPYCMLGIVPASRERNSEKSKKRKSHRKKAVLKDTVPAK 88
Query: 286 ----TQIFKCNLNPVFNESFSFNVPWEKIRECSLNVMVMDFD 323
T++ LNPV+NE+F F V E + L++ + D D
Sbjct: 89 SIKVTEVKPQTLNPVWNETFRFEV--EDVSNDQLHLDIWDHD 128
>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 = 64.6 bits (158), Expect = 8e-13
Identities = 32/88 (36%), Positives = 49/88 (55%), Gaps = 7/88 (7%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
V+TI L++ +NL D NG SDPYVK + G EK K+++ LNP + E F ++
Sbjct: 1 VVTIVLVEGKNLPPMDDNGLSDPYVK--FRLGN---EKYKSKVCSKTLNPQWLEQFDLHL 55
Query: 306 PWEKIRECSLNVMVMDFDNIGRNELIGR 333
++ + L + V D D ++E IGR
Sbjct: 56 FDDQSQI--LEIEVWDKDTGKKDEFIGR 81
Score = 63.4 bits (155), Expect = 2e-12
Identities = 36/111 (32%), Positives = 55/111 (49%), Gaps = 16/111 (14%)
Query: 122 VISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQ 181
++ K LP D +G SDPYVK L +K ++K+ +TLNP+W E F Q
Sbjct: 6 LVEGKNLPPMDDNGLSDPYVKFRLGNEKY---KSKVCSKTLNPQWLEQFDLHLFDD---Q 59
Query: 182 SRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKP-----TFWKALKPPA 227
S++L + V+D D +D+ IG C++DLS P + L+
Sbjct: 60 SQILEIEVWDKDTGKKDEFIG-----RCEIDLSALPREQTHSLELELEDGE 105
>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 = 64.2 bits (157), Expect = 1e-12
Identities = 36/104 (34%), Positives = 53/104 (50%), Gaps = 5/104 (4%)
Query: 116 STLILRVISAKELPAKDM-SGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEG 174
L++ + A +LP D +G+SDPYV + K T+I R+ LNP W ET +
Sbjct: 1 GVLVVTIHRATDLPKADFGTGSSDPYVTASFAKFGKPLYSTRIIRKDLNPVWEETWFVLV 60
Query: 175 FPIQ-KLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKP 217
P + K R L ++D DRF+ DD +G V + L +L E
Sbjct: 61 TPDEVKAGER-LSCRLWDSDRFTADDRLGRVEIDL--KELIEDR 101
Score = 46.5 bits (111), Expect = 1e-06
Identities = 29/95 (30%), Positives = 48/95 (50%), Gaps = 6/95 (6%)
Query: 245 SVLTITLLKARNLKAKDIN-GKSDPYVKV-WLQFGEKRIEKRKTQIFKCNLNPVFNES-F 301
VL +T+ +A +L D G SDPYV + +FG+ T+I + +LNPV+ E+ F
Sbjct: 1 GVLVVTIHRATDLPKADFGTGSSDPYVTASFAKFGKPL---YSTRIIRKDLNPVWEETWF 57
Query: 302 SFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
P E L+ + D D ++ +GR+ +
Sbjct: 58 VLVTPDEVKAGERLSCRLWDSDRFTADDRLGRVEI 92
>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 = 63.7 bits (155), Expect = 2e-12
Identities = 36/94 (38%), Positives = 51/94 (54%), Gaps = 14/94 (14%)
Query: 117 TLILRVISAKELPAKDMSGTSDPY--VKVALLPDKKHRLETKIKRRTLNPRWNE--TLYF 172
+L +R++ K LPAKD++G+SDPY VKV D + + T +TLNP W E T++
Sbjct: 1 SLYIRIVEGKNLPAKDITGSSDPYCIVKV----DNEVIIRTATVWKTLNPFWGEEYTVHL 56
Query: 173 EGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFL 206
+ +V D D SRDD IG+V L
Sbjct: 57 PPG------FHTVSFYVLDEDTLSRDDVIGKVSL 84
Score = 54.8 bits (132), Expect = 2e-09
Identities = 37/133 (27%), Positives = 67/133 (50%), Gaps = 27/133 (20%)
Query: 247 LTITLLKARNLKAKDINGKSDPY--VKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFN 304
L I +++ +NL AKDI G SDPY VKV + + R ++K LNP + E ++ +
Sbjct: 2 LYIRIVEGKNLPAKDITGSSDPYCIVKV-----DNEVIIRTATVWK-TLNPFWGEEYTVH 55
Query: 305 VPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQDMITKPRQTIVQW 364
+P +++ V+D D + R+++IG++ L +++I+ + I W
Sbjct: 56 LP---PGFHTVSFYVLDEDTLSRDDVIGKVSLT-------------REVISAHPRGIDGW 99
Query: 365 ---HRLKPDHEMQ 374
+ PD E+Q
Sbjct: 100 MNLTEVDPDEEVQ 112
>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 = 61.8 bits (151), Expect = 1e-11
Identities = 40/125 (32%), Positives = 57/125 (45%), Gaps = 12/125 (9%)
Query: 122 VISAKELPAKD-MSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKL 180
+ SA+ L D + GT DPYV ++ ++ TK+K+ T NP WNET Y + L
Sbjct: 8 IKSARGLKGSDIIGGTVDPYVTFSISNRREL-ARTKVKKDTSNPVWNETKY---ILVNSL 63
Query: 181 QSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF---WKALKPPAKDKCGELLTS 237
L+L V+D++ +D IG L L + P K L K GEL
Sbjct: 64 TE-PLNLTVYDFNDKRKDKLIGTAEFDLS--SLLQNPEQENLTKNLLRNGKPV-GELNYD 119
Query: 238 LCYHP 242
L + P
Sbjct: 120 LRFFP 124
Score = 54.1 bits (131), Expect = 4e-09
Identities = 33/95 (34%), Positives = 48/95 (50%), Gaps = 17/95 (17%)
Query: 246 VLTITLLKARNLKAKDINGKS-DPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESF--- 301
VL +T+ AR LK DI G + DPYV + R E +T++ K NPV+NE+
Sbjct: 3 VLAVTIKSARGLKGSDIIGGTVDPYVTFSI---SNRRELARTKVKKDTSNPVWNETKYIL 59
Query: 302 --SFNVPWEKIRECSLNVMVMDFDNIGRNELIGRI 334
S P LN+ V DF++ +++LIG
Sbjct: 60 VNSLTEP--------LNLTVYDFNDKRKDKLIGTA 86
>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 = 61.1 bits (149), Expect = 1e-11
Identities = 37/101 (36%), Positives = 51/101 (50%), Gaps = 8/101 (7%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVAL--LPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
L +RV+ A + D+ T D YV++ L D+K R TK + ++NP WNET F
Sbjct: 2 LTVRVLRATNITKGDLLSTPDCYVELWLPTASDEKKR--TKTIKNSINPVWNETFEFR-- 57
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEK 216
IQ VL L V D D DD +G V + ++ L EK
Sbjct: 58 -IQSQVKNVLELTVMDEDYV-MDDHLGTVLFDVSKLKLGEK 96
Score = 59.6 bits (145), Expect = 5e-11
Identities = 28/85 (32%), Positives = 49/85 (57%), Gaps = 4/85 (4%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
+LT+ +L+A N+ D+ D YV++WL EK++T+ K ++NPV+NE+F F +
Sbjct: 1 LLTVRVLRATNITKGDLLSTPDCYVELWLPTAS--DEKKRTKTIKNSINPVWNETFEFRI 58
Query: 306 PWEKIRECSLNVMVMDFDNIGRNEL 330
+ + L + VMD D + + L
Sbjct: 59 QSQ--VKNVLELTVMDEDYVMDDHL 81
>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 = 60.8 bits (148), Expect = 2e-11
Identities = 35/109 (32%), Positives = 52/109 (47%), Gaps = 28/109 (25%)
Query: 119 ILR--VISAKELPAKDMS------GTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETL 170
+LR VI A++L AKD G SDPYV V + ++K+ + LNP+WNE
Sbjct: 2 VLRIHVIEAQDLVAKDKFVGGLVKGKSDPYVIVRVGAQT---FKSKVIKENLNPKWNE-- 56
Query: 171 YFEGF----PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSE 215
+E P Q+L+ + +FD D +DD +G +DL
Sbjct: 57 VYEAVVDEVPGQELE-----IELFDEDP-DKDDFLGR-----LSIDLGS 94
Score = 57.3 bits (139), Expect = 3e-10
Identities = 32/94 (34%), Positives = 51/94 (54%), Gaps = 14/94 (14%)
Query: 246 VLTITLLKARNLKAKDIN------GKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNE 299
VL I +++A++L AKD GKSDPYV V + G + K+++ K NLNP +NE
Sbjct: 2 VLRIHVIEAQDLVAKDKFVGGLVKGKSDPYVIV--RVGA---QTFKSKVIKENLNPKWNE 56
Query: 300 SFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGR 333
+ V +E L + + D D +++ +GR
Sbjct: 57 VYEAVVDEVPGQE--LEIELFDED-PDKDDFLGR 87
>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 = 59.2 bits (144), Expect = 4e-11
Identities = 29/95 (30%), Positives = 49/95 (51%), Gaps = 9/95 (9%)
Query: 118 LILRVISAKELPA-KDMSGTS---DPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFE 173
+ + + S +LP K+M+ T DP+V ++ + T +R TLNP +NE L FE
Sbjct: 3 VFMEIKSITDLPPLKNMTRTGFDMDPFVIISF---GRRVFRTSWRRHTLNPVFNERLAFE 59
Query: 174 GFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
+P +K + + V D D+FS +D + L +
Sbjct: 60 VYPHEK--NFDIQFKVLDKDKFSFNDYVATGSLSV 92
Score = 39.5 bits (93), Expect = 4e-04
Identities = 22/69 (31%), Positives = 32/69 (46%), Gaps = 8/69 (11%)
Query: 267 DPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV-PWEKIRECSLNVMVMDFDNI 325
DP+V + FG + +T + LNPVFNE +F V P EK + V+D D
Sbjct: 27 DPFVII--SFGRRVF---RTSWRRHTLNPVFNERLAFEVYPHEK--NFDIQFKVLDKDKF 79
Query: 326 GRNELIGRI 334
N+ +
Sbjct: 80 SFNDYVATG 88
>gnl|CDD|227371 COG5038, COG5038, Ca2+-dependent lipid-binding protein, contains C2
domain [General function prediction only].
Length = 1227
Score = 65.2 bits (159), Expect = 4e-11
Identities = 35/102 (34%), Positives = 52/102 (50%), Gaps = 11/102 (10%)
Query: 236 TSLCYHPSNSV-----LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFK 290
+ P V LTI L NL + D NG SDP+VK++L + KT++ K
Sbjct: 1026 VPVKLPPVEMVENSGYLTIMLRSGENLPSSDENGYSDPFVKLFLN-EKS---VYKTKVVK 1081
Query: 291 CNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIG 332
LNPV+NE F+ V + L + V D+D+ +N+L+G
Sbjct: 1082 KTLNPVWNEEFTIEVLNRV--KDVLTINVNDWDSGEKNDLLG 1121
Score = 62.9 bits (153), Expect = 2e-10
Identities = 32/108 (29%), Positives = 57/108 (52%), Gaps = 6/108 (5%)
Query: 114 DNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFE 173
++ L + + S + LP+ D +G SDP+VK+ L +K +TK+ ++TLNP WNE F
Sbjct: 1038 NSGYLTIMLRSGENLPSSDENGYSDPFVKL-FLNEKSVY-KTKVVKKTLNPVWNEE--FT 1093
Query: 174 GFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWK 221
+ VL ++V D+D ++D +G + L +++ T
Sbjct: 1094 -IEVLNRVKDVLTINVNDWDSGEKNDLLGTAEIDLSKLE-PGGTTNSN 1139
Score = 58.2 bits (141), Expect = 6e-09
Identities = 40/150 (26%), Positives = 65/150 (43%), Gaps = 14/150 (9%)
Query: 118 LILRVISAKELPAKDMS--GTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
+ +++ SA+ L D + GT DPY+ V + +T++K+ TLNP WNET Y
Sbjct: 438 VEVKIKSAEGLKKSDSTINGTVDPYITVTF--SDRVIGKTRVKKNTLNPVWNETFY---I 492
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTFWKALKPPAKD--KCGE 233
+ L+L ++D++ F D +G L L L + P L ++ G
Sbjct: 493 LLNSFTDP-LNLSLYDFNSFKSDKVVGSTQLDL--ALLHQNPVKKNELYEFLRNTKNVGR 549
Query: 234 LLTSLCYHPSNSVLTITLLKARNLKAKDIN 263
L L + P + LK +D N
Sbjct: 550 LTYDLRFFP--VIEDKKELKGSVEPLEDSN 577
Score = 51.3 bits (123), Expect = 9e-07
Identities = 27/93 (29%), Positives = 45/93 (48%), Gaps = 9/93 (9%)
Query: 246 VLTITLLKARNLKAKD--INGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSF 303
V+ + + A LK D ING DPY+ KT++ K LNPV+NE+F
Sbjct: 437 VVEVKIKSAEGLKKSDSTINGTVDPYI----TVTFSDRVIGKTRVKKNTLNPVWNETFY- 491
Query: 304 NVPWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
+ + LN+ + DF++ ++++G L
Sbjct: 492 -ILLNSFTD-PLNLSLYDFNSFKSDKVVGSTQL 522
Score = 45.5 bits (108), Expect = 5e-05
Identities = 36/117 (30%), Positives = 49/117 (41%), Gaps = 9/117 (7%)
Query: 90 DMYIDNT-EPSENVGQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPD 148
++I N +P N G YD + + V A +L + G SDPY V +
Sbjct: 684 RIFITNYWKPIYNAGGSSSKTVYDTPIGAIRVSVRKANDLRNEIPGGKSDPYATVLVNNL 743
Query: 149 KKHRLETKIKRRTLNPRWNETLYFEGF-PIQKLQSRVLHLHVFDYDRFSRDDSIGEV 204
K+R TLNP WNE LY Q+L L DY+ D ++GEV
Sbjct: 744 VKYRTIYGSS--TLNPIWNEILYVPVTSKNQRLT-----LECMDYEESGDDRNLGEV 793
Score = 38.2 bits (89), Expect = 0.011
Identities = 43/233 (18%), Positives = 76/233 (32%), Gaps = 39/233 (16%)
Query: 96 TEPSENVGQIHFSLEYDF----DNSTLILRVISAKELPA----------KDMSGTSD--P 139
++NVG++ + L + F D L V ++ K + S
Sbjct: 541 LRNTKNVGRLTYDLRF-FPVIEDKKELKGSVEPLEDSNTGILKVTLREVKALDELSSKKD 599
Query: 140 YVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDD 199
L + K T + T +P WN + ++ + + FD
Sbjct: 600 NKSAELYTNAKEVYSTGKLKFTNHPSWNLQYNV---LVTDRKNSSIKVVTFDVQS---GK 653
Query: 200 SIGEVFLPLCQ-VDLSEKPTFWKALKPPAKD-----------KCGELLTSLCYHPSNSVL 247
I L +D + L+ P G + Y +
Sbjct: 654 VIATEGSTLPDLIDRTLDTFLVFPLRNPKGRIFITNYWKPIYNAGGSSSKTVYDTPIGAI 713
Query: 248 TITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNES 300
+++ KA +L+ + GKSDPY V + + K +T LNP++NE
Sbjct: 714 RVSVRKANDLRNEIPGGKSDPYATVLVN----NLVKYRTIYGSSTLNPIWNEI 762
>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 = 58.3 bits (142), Expect = 1e-10
Identities = 32/104 (30%), Positives = 50/104 (48%), Gaps = 11/104 (10%)
Query: 123 ISAKELPAKDMSGTSDPYVKVALLPDKKHRL---ETKIKRRTLNPRWNETLYFEGFPIQK 179
S K+L KD G SDP+++++ + + T++ + TLNP W F P+QK
Sbjct: 7 FSGKKLDKKDFFGKSDPFLEISRQSEDGTWVLVYRTEVIKNTLNPVWKP---FT-IPLQK 62
Query: 180 L----QSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPTF 219
L R + + V+DYD + D IGE L ++ S F
Sbjct: 63 LCNGDYDRPIKIEVYDYDSSGKHDLIGEFETTLDELLKSSPLEF 106
Score = 55.3 bits (134), Expect = 1e-09
Identities = 25/86 (29%), Positives = 47/86 (54%), Gaps = 8/86 (9%)
Query: 252 LKARNLKAKDINGKSDPYVKVWLQFGEKR-IEKRKTQIFKCNLNPVFNESFSFNVPWEKI 310
+ L KD GKSDP++++ Q + + +T++ K LNPV+ F +P +K+
Sbjct: 7 FSGKKLDKKDFFGKSDPFLEISRQSEDGTWVLVYRTEVIKNTLNPVWKP---FTIPLQKL 63
Query: 311 ----RECSLNVMVMDFDNIGRNELIG 332
+ + + V D+D+ G+++LIG
Sbjct: 64 CNGDYDRPIKIEVYDYDSSGKHDLIG 89
>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 = 57.9 bits (141), Expect = 2e-10
Identities = 36/129 (27%), Positives = 62/129 (48%), Gaps = 26/129 (20%)
Query: 125 AKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI----QKL 180
A++L A D SG SDP+ +V+ L ET++ + TL+P W++TL F+ + +++
Sbjct: 10 ARDLLAADKSGLSDPFARVSFL---NQSQETEVIKETLSPTWDQTLIFDEVELYGSPEEI 66
Query: 181 QSR--VLHLHVFDYDRFSRDDSIGEVFL-PLCQVDLSEKPTFWKALKPPA---------K 228
++ + +FD D +D+ +G PL ++DL E PP
Sbjct: 67 AQNPPLVVVELFDQDSVGKDEFLGRSVAKPLVKLDLEED-------FPPKLQWFPIYKGG 119
Query: 229 DKCGELLTS 237
GELL +
Sbjct: 120 QSAGELLAA 128
Score = 39.1 bits (92), Expect = 8e-04
Identities = 26/87 (29%), Positives = 47/87 (54%), Gaps = 12/87 (13%)
Query: 254 ARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFN--VPWEKIR 311
AR+L A D +G SDP+ +V F + E T++ K L+P ++++ F+ +
Sbjct: 10 ARDLLAADKSGLSDPFARV--SFLNQSQE---TEVIKETLSPTWDQTLIFDEVELYGSPE 64
Query: 312 ECSLN-----VMVMDFDNIGRNELIGR 333
E + N V + D D++G++E +GR
Sbjct: 65 EIAQNPPLVVVELFDQDSVGKDEFLGR 91
>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 = 56.2 bits (136), Expect = 1e-09
Identities = 36/117 (30%), Positives = 54/117 (46%), Gaps = 15/117 (12%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAK-DMSGTSDPYVKVALLPDKK--HRLETKIKR 159
G I L L + VI A+ L K PYVKV LL KK + +TKI R
Sbjct: 18 GDIQLGLYDK--KGQLEVEVIRARGLVQKPGSKVLPAPYVKVYLLEGKKCIAKKKTKIAR 75
Query: 160 RTLNPRWNETLYFEGFPIQKLQSRVLHLHVF-DYDRFSRDDSIGEVFLPLCQVDLSE 215
+TL+P + + L F+ + L + V+ DY R + +VF+ + Q+ L +
Sbjct: 76 KTLDPLYQQQLVFD----VSPTGKTLQVIVWGDYGRMDK-----KVFMGVAQILLDD 123
Score = 55.1 bits (133), Expect = 3e-09
Identities = 34/117 (29%), Positives = 58/117 (49%), Gaps = 13/117 (11%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKS---DPYVKVWLQFGEKRIEKRKTQI 288
G++ L L + +++AR L K G PYVKV+L G+K I K+KT+I
Sbjct: 18 GDIQLGLYD--KKGQLEVEVIRARGLVQK--PGSKVLPAPYVKVYLLEGKKCIAKKKTKI 73
Query: 289 FKCNLNPVFNESFSFNVPWEKIRECSLNVMVM-DFDNIGRNELIG--RILLAGKNGS 342
+ L+P++ + F+V +L V+V D+ + + +G +ILL + S
Sbjct: 74 ARKTLDPLYQQQLVFDV---SPTGKTLQVIVWGDYGRMDKKVFMGVAQILLDDLDLS 127
>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 = 55.0 bits (133), Expect = 2e-09
Identities = 35/98 (35%), Positives = 46/98 (46%), Gaps = 10/98 (10%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFP 176
+L LR++ AK LP+K GT DPY V+L D+ TK + LNP W E F+ P
Sbjct: 1 SLRLRILEAKNLPSK---GTRDPYCTVSL--DQVEVARTKTVEK-LNPFWGEEFVFDDPP 54
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFL---PLCQV 211
+ L + D RD IG+V L L Q
Sbjct: 55 -PDVTFFTLSFYNKDKRSKDRDIVIGKVALSKLDLGQG 91
Score = 39.9 bits (94), Expect = 3e-04
Identities = 27/90 (30%), Positives = 45/90 (50%), Gaps = 8/90 (8%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L + +L+A+NL +K G DPY V L + + + KT LNP + E F F+ P
Sbjct: 2 LRLRILEAKNLPSK---GTRDPYCTVSLD--QVEVARTKT---VEKLNPFWGEEFVFDDP 53
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGRILL 336
+ +L+ D + R+ +IG++ L
Sbjct: 54 PPDVTFFTLSFYNKDKRSKDRDIVIGKVAL 83
>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 = 54.9 bits (133), Expect = 2e-09
Identities = 30/89 (33%), Positives = 47/89 (52%), Gaps = 11/89 (12%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
VL + + KA +LK + GK DPYV+V + I K +T LNPV++E V
Sbjct: 2 VLRLHIRKANDLKNLEGVGKIDPYVRVLV----NGIVKGRTVTISNTLNPVWDEVLYVPV 57
Query: 306 --PWEKIRECSLNVMVMDFDNIGRNELIG 332
P +KI + VMD++ +G++ +G
Sbjct: 58 TSPNQKIT-----LEVMDYEKVGKDRSLG 81
Score = 50.7 bits (122), Expect = 6e-08
Identities = 29/89 (32%), Positives = 44/89 (49%), Gaps = 6/89 (6%)
Query: 120 LRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQK 179
L + A +L + G DPYV+V + K R T TLNP W+E LY P+
Sbjct: 5 LHIRKANDLKNLEGVGKIDPYVRVLVNGIVKGR--TVTISNTLNPVWDEVLY---VPVTS 59
Query: 180 LQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
++ L V DY++ +D S+G V + +
Sbjct: 60 PNQKIT-LEVMDYEKVGKDRSLGSVEINV 87
>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 = 55.0 bits (133), Expect = 3e-09
Identities = 34/91 (37%), Positives = 51/91 (56%), Gaps = 4/91 (4%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
+ TI +++A NLKA NG SDPYV + G++RI K +T I+ LNP ++E F V
Sbjct: 2 LFTIRIVRAENLKADSSNGLSDPYVTLVDTNGKRRIAKTRT-IYD-TLNPRWDEEFELEV 59
Query: 306 PWEKIRECSLNVMVMDFDNIGRNELIGRILL 336
P ++ V D +G+++L GR L
Sbjct: 60 P--AGEPLWISATVWDRSFVGKHDLCGRASL 88
Score = 53.4 bits (129), Expect = 8e-09
Identities = 28/90 (31%), Positives = 44/90 (48%), Gaps = 5/90 (5%)
Query: 120 LRVISAKELPAKDMSGTSDPYVKVALLPDKKHRL-ETKIKRRTLNPRWNETLYFEGFPIQ 178
+R++ A+ L A +G SDPYV + + K R+ +T+ TLNPRW+E FE +
Sbjct: 5 IRIVRAENLKADSSNGLSDPYV-TLVDTNGKRRIAKTRTIYDTLNPRWDEE--FE-LEVP 60
Query: 179 KLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
+ + V+D + D G L L
Sbjct: 61 AGEPLWISATVWDRSFVGKHDLCGRASLKL 90
>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 = 54.9 bits (132), Expect = 3e-09
Identities = 26/56 (46%), Positives = 34/56 (60%), Gaps = 3/56 (5%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFE 173
+ + V+ A+ L AKD +GTSDPYV V + KK TK + LNP WNE +FE
Sbjct: 3 ISITVVCAQGLIAKDKTGTSDPYVTVQVGKTKK---RTKTIPQNLNPVWNEKFHFE 55
Score = 53.0 bits (127), Expect = 1e-08
Identities = 27/57 (47%), Positives = 37/57 (64%), Gaps = 5/57 (8%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSF 303
++IT++ A+ L AKD G SDPYV V Q G+ K++T+ NLNPV+NE F F
Sbjct: 3 ISITVVCAQGLIAKDKTGTSDPYVTV--QVGKT---KKRTKTIPQNLNPVWNEKFHF 54
>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 = 54.6 bits (132), Expect = 3e-09
Identities = 28/82 (34%), Positives = 44/82 (53%), Gaps = 9/82 (10%)
Query: 252 LKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVPWEKI- 310
+ +NL GK D KV R K+KT++ + LNPV+NE+F + +
Sbjct: 3 VSLKNLPGL--KGKGDRIAKV-----TFRGVKKKTRVLENELNPVWNETFEWPL-AGSPD 54
Query: 311 RECSLNVMVMDFDNIGRNELIG 332
+ SL ++V D++ +GRN LIG
Sbjct: 55 PDESLEIVVKDYEKVGRNRLIG 76
Score = 46.1 bits (110), Expect = 3e-06
Identities = 30/92 (32%), Positives = 42/92 (45%), Gaps = 10/92 (10%)
Query: 122 VISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQK-- 179
V+S K LP G D KV KK +T++ LNP WNET FE +P+
Sbjct: 2 VVSLKNLPGLK--GKGDRIAKVTFRGVKK---KTRVLENELNPVWNET--FE-WPLAGSP 53
Query: 180 LQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV 211
L + V DY++ R+ IG + L +
Sbjct: 54 DPDESLEIVVKDYEKVGRNRLIGSATVSLQDL 85
>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 = 53.7 bits (130), Expect = 4e-09
Identities = 29/106 (27%), Positives = 49/106 (46%), Gaps = 13/106 (12%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L + + SAK LP + PYV++ + ++K+K RT NP W E F +
Sbjct: 2 LFVYLDSAKNLPLAKSTKEPSPYVEL-TVGKTTQ--KSKVKERTNNPVWEEGFTF--L-V 55
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV----DLSEKPTF 219
+ +++ L + V D S+G + LPL ++ DL+ F
Sbjct: 56 RNPENQELEIEVKDDK---TGKSLGSLTLPLSELLKEPDLTLDQPF 98
Score = 32.9 bits (76), Expect = 0.065
Identities = 20/78 (25%), Positives = 36/78 (46%), Gaps = 7/78 (8%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
+L + L A+NL + PYV++ + G+ +K+++ + NPV+ E F+F V
Sbjct: 1 LLFVYLDSAKNLPLAKSTKEPSPYVELTV--GKT---TQKSKVKERTNNPVWEEGFTFLV 55
Query: 306 PWEKIRECSLNVMVMDFD 323
L + V D
Sbjct: 56 R--NPENQELEIEVKDDK 71
>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 = 52.2 bits (126), Expect = 2e-08
Identities = 35/120 (29%), Positives = 50/120 (41%), Gaps = 12/120 (10%)
Query: 238 LCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNL---- 293
L Y +S L I++ + RNL A I S YV+V L + +F+
Sbjct: 7 LRYDSGDSSLVISVEQLRNLSALSIPENSKVYVRVALLPCSSST----SCLFRTKALEDQ 62
Query: 294 -NPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIG--RILLAGKNGSGASETKHW 350
PVFNE F + K+ + +L V V + E +G +I LA S TK W
Sbjct: 63 DKPVFNEVFRVPISSTKLYQKTLQVDVCSVGPDQQEECLGGAQISLADFESSEEMSTK-W 121
Score = 40.3 bits (95), Expect = 3e-04
Identities = 27/93 (29%), Positives = 39/93 (41%), Gaps = 12/93 (12%)
Query: 104 QIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLP-DKKHRL--ETKIKRR 160
Q+ L YD +S+L++ V + L A + S YV+VALLP TK
Sbjct: 2 QVQIGLRYDSGDSSLVISVEQLRNLSALSIPENSKVYVRVALLPCSSSTSCLFRTKALED 61
Query: 161 TLNPRWNETLYFEGFPIQ----KLQSRVLHLHV 189
P +NE F + KL + L + V
Sbjct: 62 QDKPVFNEV-----FRVPISSTKLYQKTLQVDV 89
>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 = 53.0 bits (128), Expect = 2e-08
Identities = 35/124 (28%), Positives = 59/124 (47%), Gaps = 29/124 (23%)
Query: 117 TLILRVISAKELPAKD---MSGT-----------SDPYVKVALLPDKKHRLETKIKRRTL 162
I ++ A++LP D M+ DPYV+V+ +++T +K+ +
Sbjct: 1 RFIFKIYRAEDLPQMDSGIMANVKKAFLGEKKELVDPYVEVSFA---GQKVKTSVKKNSY 57
Query: 163 NPRWNETLYF-EGFP--IQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEK--- 216
NP WNE + F E FP ++++ + + D+DR DD IG F+ L ++ S
Sbjct: 58 NPEWNEQIVFPEMFPPLCERIK-----IQIRDWDRVGNDDVIGTHFIDLSKISNSGDEGF 112
Query: 217 -PTF 219
PTF
Sbjct: 113 LPTF 116
Score = 39.9 bits (94), Expect = 7e-04
Identities = 22/70 (31%), Positives = 37/70 (52%), Gaps = 14/70 (20%)
Query: 267 DPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVPW----EKIRECSLNVMVMDF 322
DPYV+V F + K KT + K + NP +NE F + E+I+ + + D+
Sbjct: 36 DPYVEVS--FAGQ---KVKTSVKKNSYNPEWNEQIVFPEMFPPLCERIK-----IQIRDW 85
Query: 323 DNIGRNELIG 332
D +G +++IG
Sbjct: 86 DRVGNDDVIG 95
>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 = 52.2 bits (125), Expect = 3e-08
Identities = 30/136 (22%), Positives = 64/136 (47%), Gaps = 3/136 (2%)
Query: 233 ELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCN 292
EL C+ NS + + +L+A+NL + +VKV + + K+KT++ K +
Sbjct: 2 ELQLGTCFQAVNSRIQLQILEAQNLPSSSTPLTLSFFVKVGMFSTGGLLYKKKTRLVKSS 61
Query: 293 LNPV-FNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRILLAGKNGSGASETKHWQ 351
V + E+ F V ++ + + ++ R +G++ ++ + S + + W+
Sbjct: 62 NGQVKWGETMIFPVT-QQEHGIQFLIKLYSRSSVRRKHFLGQVWIS-SDSSSSEAVEQWK 119
Query: 352 DMITKPRQTIVQWHRL 367
D I P + + +WH L
Sbjct: 120 DTIANPEKVVTKWHSL 135
Score = 28.4 bits (63), Expect = 4.6
Identities = 21/98 (21%), Positives = 42/98 (42%), Gaps = 7/98 (7%)
Query: 115 NSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETK---IKRRTLNPRWNETLY 171
NS + L+++ A+ LP+ T +VKV + + K +K +W ET+
Sbjct: 13 NSRIQLQILEAQNLPSSSTPLTLSFFVKVGMFSTGGLLYKKKTRLVKSSNGQVKWGETMI 72
Query: 172 FEGFPI-QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
FP+ Q+ + ++ R +G+V++
Sbjct: 73 ---FPVTQQEHGIQFLIKLYSRSSVRRKHFLGQVWISS 107
>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 = 51.6 bits (124), Expect = 4e-08
Identities = 30/85 (35%), Positives = 53/85 (62%), Gaps = 6/85 (7%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L++ ++ ++L + +G SDPY +V++ ++H+ TK+ TLNP+WN ++ F +
Sbjct: 17 LMVVIVEGRDLKPCNSNGKSDPYCEVSM-GSQEHK--TKVVSDTLNPKWNSSMQFF---V 70
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIG 202
+ L+ VL + VFD D FS DD +G
Sbjct: 71 KDLEQDVLCITVFDRDFFSPDDFLG 95
Score = 43.5 bits (103), Expect = 3e-05
Identities = 32/104 (30%), Positives = 50/104 (48%), Gaps = 14/104 (13%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L + +++ R+LK + NGKSDPY +V G + KT++ LNP +N S F V
Sbjct: 17 LMVVIVEGRDLKPCNSNGKSDPYCEV--SMGSQE---HKTKVVSDTLNPKWNSSMQFFV- 70
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGR-------ILLAGKNGSG 343
+ + + L + V D D ++ +GR IL K G
Sbjct: 71 -KDLEQDVLCITVFDRDFFSPDDFLGRTEIRVADILKETKESKG 113
>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 = 51.2 bits (123), Expect = 4e-08
Identities = 40/121 (33%), Positives = 55/121 (45%), Gaps = 11/121 (9%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKI-KRRTLNPRWNETLYFE-G 174
TL + +ISAK L D G DPYV ++ + ++K+ K NP WNE F
Sbjct: 2 TLEVLLISAKGLQDTDFLGKIDPYV---IIQCRTQERKSKVAKGDGRNPEWNEKFKFTVE 58
Query: 175 FPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV--DLSEKPTFWKALKPPAKDKCG 232
+P ++ L L + D D FS DD IGE + L + + E T A PAK
Sbjct: 59 YPGWGGDTK-LILRIMDKDNFSDDDFIGEATIHLKGLFEEGVEPGT---AELVPAKYNVV 114
Query: 233 E 233
Sbjct: 115 L 115
Score = 45.8 bits (109), Expect = 4e-06
Identities = 30/91 (32%), Positives = 46/91 (50%), Gaps = 11/91 (12%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFK-CNLNPVFNESFSFN 304
L + L+ A+ L+ D GK DPYV +Q + +RK+++ K NP +NE F F
Sbjct: 2 TLEVLLISAKGLQDTDFLGKIDPYVI--IQCRTQ---ERKSKVAKGDGRNPEWNEKFKFT 56
Query: 305 VP---WEKIRECSLNVMVMDFDNIGRNELIG 332
V W + L + +MD DN ++ IG
Sbjct: 57 VEYPGWGGDTK--LILRIMDKDNFSDDDFIG 85
>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 = 51.0 bits (123), Expect = 5e-08
Identities = 32/92 (34%), Positives = 51/92 (55%), Gaps = 11/92 (11%)
Query: 247 LTITLLKARNL-KAKDINGKS-DPYVKVWLQFGEKRIE--KRKTQIFKCN-LNPVFNESF 301
LTI ++ + L K K G DPYV+V + G + K KT++ K N NPV+NE+F
Sbjct: 4 LTIKIISGQQLPKPKGDKGSIVDPYVEVEI-HGLPADDSAKFKTKVVKNNGFNPVWNETF 62
Query: 302 SFNVPWEKIRECS-LNVMVMDFDNIGRNELIG 332
F+V + E + L +V D ++ G ++ +G
Sbjct: 63 EFDV---TVPELAFLRFVVYD-EDSGDDDFLG 90
Score = 50.6 bits (122), Expect = 7e-08
Identities = 34/99 (34%), Positives = 49/99 (49%), Gaps = 12/99 (12%)
Query: 117 TLILRVISAKELP--AKDMSGTSDPYVKVALL---PDKKHRLETK-IKRRTLNPRWNETL 170
TL +++IS ++LP D DPYV+V + D + +TK +K NP WNET
Sbjct: 3 TLTIKIISGQQLPKPKGDKGSIVDPYVEVEIHGLPADDSAKFKTKVVKNNGFNPVWNETF 62
Query: 171 YFEG-FPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
F+ P + L V+D D DD +G+ LPL
Sbjct: 63 EFDVTVP----ELAFLRFVVYDEDSG-DDDFLGQACLPL 96
>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 = 50.6 bits (122), Expect = 6e-08
Identities = 26/75 (34%), Positives = 45/75 (60%), Gaps = 4/75 (5%)
Query: 252 LKARNLKAKDINGKSDPYVKVWLQFGEKR--IEKRKTQIFKCNLNPVFNESFSFNVPWEK 309
+ RNL KD+ KSDP+V V+++ G +E +T++ K NLNP F +F+ + +E+
Sbjct: 7 ISCRNLLDKDVLSKSDPFVVVYVKTGGSGQWVEIGRTEVIKNNLNPDFVTTFTVDYYFEE 66
Query: 310 IRECSLNVMVMDFDN 324
+++ L V D D+
Sbjct: 67 VQK--LRFEVYDVDS 79
Score = 42.6 bits (101), Expect = 4e-05
Identities = 28/99 (28%), Positives = 45/99 (45%), Gaps = 15/99 (15%)
Query: 123 ISAKELPAKDMSGTSDPYVKVALLPDKKHRLE----TKIKRRTLNPRWNETLYFE-GFP- 176
IS + L KD+ SDP+V V + + T++ + LNP + T + F
Sbjct: 7 ISCRNLLDKDVLSKSDPFVVVYVKTGGSGQWVEIGRTEVIKNNLNPDFVTTFTVDYYFEE 66
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDS----IGEVFLPLCQV 211
+QKL+ V+D D S+D S +GE L ++
Sbjct: 67 VQKLR-----FEVYDVDSKSKDLSDHDFLGEAECTLGEI 100
>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 = 49.9 bits (120), Expect = 1e-07
Identities = 32/99 (32%), Positives = 48/99 (48%), Gaps = 11/99 (11%)
Query: 117 TLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFP 176
TL++ V+ A+ LP K DPY + + K + +T R +P W+E L FE
Sbjct: 2 TLVVVVLKARNLPNKRKLDKQDPYCVLRIGGVTK-KTKT-DFRGGQHPEWDEELRFEITE 59
Query: 177 IQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSE 215
+K +L + VFD D + D IG+ +VDLS
Sbjct: 60 DKK---PILKVAVFD-DDKRKPDLIGD-----TEVDLSP 89
Score = 43.8 bits (104), Expect = 1e-05
Identities = 29/90 (32%), Positives = 44/90 (48%), Gaps = 13/90 (14%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRI--EKRKTQ-IFKCNLNPVFNESFSF 303
L + +LKARNL K K DPY + RI +KT+ F+ +P ++E F
Sbjct: 3 LVVVVLKARNLPNKRKLDKQDPYCVL-------RIGGVTKKTKTDFRGGQHPEWDEELRF 55
Query: 304 NVPWEKIRECSLNVMVMDFDNIGRNELIGR 333
+ +K + L V V D D+ + +LIG
Sbjct: 56 EITEDK--KPILKVAVFD-DDKRKPDLIGD 82
>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 = 49.9 bits (120), Expect = 1e-07
Identities = 32/102 (31%), Positives = 46/102 (45%), Gaps = 14/102 (13%)
Query: 117 TLILRVISAKELPAKDMSGTS--DPYVKVALLPDKKHRLETKI--KRRTLNPRWNETLYF 172
TL + +ISA++L K+++ Y V + D H+ T + T NP WNETL F
Sbjct: 1 TLEITIISAEDL--KNVNLFGKMKVYAVVWI--DPSHKQSTPVDRDGGT-NPTWNETLRF 55
Query: 173 ---EGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV 211
E Q L + V+ D IGEV +PL +
Sbjct: 56 PLDERLLQQ--GRLALTIEVYCERPSLGDKLIGEVRVPLKDL 95
Score = 45.3 bits (108), Expect = 6e-06
Identities = 25/96 (26%), Positives = 44/96 (45%), Gaps = 9/96 (9%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQI-FKCNLNPVFNESFSFNV 305
L IT++ A +LK ++ GK Y VW+ K+ T + NP +NE+ F +
Sbjct: 2 LEITIISAEDLKNVNLFGKMKVYAVVWI-DPSH---KQSTPVDRDGGTNPTWNETLRFPL 57
Query: 306 PWEKIREC--SLNVMVMDFDNIGRNELIG--RILLA 337
+++ +L + V ++LIG R+ L
Sbjct: 58 DERLLQQGRLALTIEVYCERPSLGDKLIGEVRVPLK 93
>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 = 49.7 bits (119), Expect = 2e-07
Identities = 24/58 (41%), Positives = 37/58 (63%), Gaps = 4/58 (6%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALL-PDKKHRLE-TKIKRRTLNPRWNETLYFE 173
L +RVI +L K +GT DPY V L+ +KK + TK+K++T NP+++E YF+
Sbjct: 2 LSVRVIECSDLALK--NGTCDPYASVTLIYSNKKQDTKRTKVKKKTNNPQFDEAFYFD 57
Score = 43.5 bits (103), Expect = 4e-05
Identities = 20/60 (33%), Positives = 36/60 (60%), Gaps = 2/60 (3%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L++ +++ +L K NG DPY V L + K+ + ++T++ K NP F+E+F F+V
Sbjct: 2 LSVRVIECSDLALK--NGTCDPYASVTLIYSNKKQDTKRTKVKKKTNNPQFDEAFYFDVT 59
>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 = 49.0 bits (117), Expect = 2e-07
Identities = 27/101 (26%), Positives = 53/101 (52%), Gaps = 3/101 (2%)
Query: 232 GELLTSLCYHPSNSVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKC 291
G+L S+ N LT+ +L+A+ L++ + +G + YVK+ L ++ ++KT
Sbjct: 1 GQLKLSIEG--QNRKLTLHVLEAKGLRSTN-SGTCNSYVKISLSPDKEVRFRQKTSTVPD 57
Query: 292 NLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIG 332
+ NP+F+E+FSF+V ++ L + + L+G
Sbjct: 58 SANPLFHETFSFDVNERDYQKRLLVTVWNKLSKSRDSGLLG 98
Score = 49.0 bits (117), Expect = 3e-07
Identities = 33/102 (32%), Positives = 52/102 (50%), Gaps = 9/102 (8%)
Query: 103 GQIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLE--TKIKRR 160
GQ+ S+E N L L V+ AK L + + SGT + YVK++L PDK+ R T
Sbjct: 1 GQLKLSIEGQ--NRKLTLHVLEAKGLRSTN-SGTCNSYVKISLSPDKEVRFRQKTSTVPD 57
Query: 161 TLNPRWNETLYFEGFPIQKLQS-RVLHLHVFDYDRFSRDDSI 201
+ NP ++ET F + + + L + V++ SRD +
Sbjct: 58 SANPLFHETFS---FDVNERDYQKRLLVTVWNKLSKSRDSGL 96
>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 = 49.0 bits (117), Expect = 3e-07
Identities = 37/124 (29%), Positives = 54/124 (43%), Gaps = 10/124 (8%)
Query: 122 VISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNE--TLYFEGFPIQK 179
V+ A+ L K SGT+D YV + L +K T +K +T +P W E + G
Sbjct: 5 VLQARGLLCKGKSGTNDAYVIIQLGKEK---YSTSVKEKTTSPVWKEECSFELPGLLSGN 61
Query: 180 LQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDL--SEKPTFWKAL--KPPAKDKC-GEL 234
L L V + D +G+V +PL +D + T W L KP DK GE+
Sbjct: 62 GNRATLQLTVMHRNLLGLDKFLGQVSIPLNDLDEDKGRRRTRWFKLESKPGKDDKERGEI 121
Query: 235 LTSL 238
+
Sbjct: 122 EVDI 125
Score = 45.1 bits (107), Expect = 5e-06
Identities = 26/89 (29%), Positives = 47/89 (52%), Gaps = 8/89 (8%)
Query: 249 ITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP-- 306
+T+L+AR L K +G +D YV + Q G+ EK T + + +PV+ E SF +P
Sbjct: 3 VTVLQARGLLCKGKSGTNDAYVII--QLGK---EKYSTSVKEKTTSPVWKEECSFELPGL 57
Query: 307 -WEKIRECSLNVMVMDFDNIGRNELIGRI 334
+L + VM + +G ++ +G++
Sbjct: 58 LSGNGNRATLQLTVMHRNLLGLDKFLGQV 86
>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 = 48.5 bits (116), Expect = 3e-07
Identities = 35/101 (34%), Positives = 48/101 (47%), Gaps = 16/101 (15%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L +RV+ A+ LPA ++DP V+V L ++ TK RT NP WN+ F
Sbjct: 2 LYVRVVKARGLPA----NSNDPVVEVKLGN---YKGSTKAIERTSNPEWNQVFAFSK--- 51
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSEKPT 218
+LQ L + V+D D + FL DLSE PT
Sbjct: 52 DRLQGSTLEVSVWD------KDKAKDDFLGGVCFDLSEVPT 86
Score = 38.4 bits (90), Expect = 0.001
Identities = 25/88 (28%), Positives = 45/88 (51%), Gaps = 12/88 (13%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
L + ++KAR L A +DP V+V L G K T+ + NP +N+ F+F+
Sbjct: 2 LYVRVVKARGLPA----NSNDPVVEVKL--GNY---KGSTKAIERTSNPEWNQVFAFSK- 51
Query: 307 WEKIRECSLNVMVMDFDNIGRNELIGRI 334
++++ +L V V D D ++ +G +
Sbjct: 52 -DRLQGSTLEVSVWDKDKAK-DDFLGGV 77
>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 = 46.2 bits (110), Expect = 2e-06
Identities = 33/95 (34%), Positives = 48/95 (50%), Gaps = 10/95 (10%)
Query: 123 ISAKELPAKDM----SGTSDPYVKVAL----LPDKKHRLETKIKRRTLNPRWNETLYFEG 174
++ K + A D+ +G P+V+V L L DKK + TK K +P++NET F
Sbjct: 2 VTVKVVAANDLKWQTTGMFRPFVEVNLIGPHLSDKKRKFATKSKNNNWSPKYNETFQFIL 61
Query: 175 FPIQKLQSRVLHLHVFDYDRFSRDDS-IGEVFLPL 208
+S LH+ V DY F+RDD +G L L
Sbjct: 62 GNEDDPESYELHICVKDY-CFARDDRLVGVTVLQL 95
Score = 30.8 bits (70), Expect = 0.45
Identities = 25/90 (27%), Positives = 44/90 (48%), Gaps = 6/90 (6%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLN---PVFNESFSF 303
+T+ ++ A +LK + G P+V+V L G +K++ K N P +NE+F F
Sbjct: 2 VTVKVVAANDLKWQ-TTGMFRPFVEVNL-IGPHLSDKKRKFATKSKNNNWSPKYNETFQF 59
Query: 304 NVPWEKIREC-SLNVMVMDFDNIGRNELIG 332
+ E E L++ V D+ + L+G
Sbjct: 60 ILGNEDDPESYELHICVKDYCFARDDRLVG 89
>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 = 45.5 bits (108), Expect = 5e-06
Identities = 28/89 (31%), Positives = 42/89 (47%), Gaps = 7/89 (7%)
Query: 117 TLILRVISAKELPA-KDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
+L +++ AK LP + D Y V L D++ TK ++L P + E YFE
Sbjct: 1 SLKIKIGEAKNLPPRSGPNKMRDCYCTVNL--DQEEVFRTKTVEKSLCPFFGEDFYFE-I 57
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEV 204
P R L +++D D RD IG+V
Sbjct: 58 PRT---FRHLSFYIYDRDVLRRDSVIGKV 83
Score = 28.6 bits (64), Expect = 2.8
Identities = 15/50 (30%), Positives = 27/50 (54%), Gaps = 3/50 (6%)
Query: 285 KTQIFKCNLNPVFNESFSFNVPWEKIRECSLNVMVMDFDNIGRNELIGRI 334
+T+ + +L P F E F F +P R L+ + D D + R+ +IG++
Sbjct: 37 RTKTVEKSLCPFFGEDFYFEIP-RTFR--HLSFYIYDRDVLRRDSVIGKV 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 = 43.4 bits (103), Expect = 2e-05
Identities = 15/61 (24%), Positives = 25/61 (40%), Gaps = 9/61 (14%)
Query: 245 SVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRK--TQIFKCNLNPVFNESFS 302
V + + A L +D G +DPYV + + E + + K L+P F+
Sbjct: 3 VVTQVHVHSAEGLSKQDSGGGADPYVII-------KCEGESVRSPVQKDTLSPEFDTQAI 55
Query: 303 F 303
F
Sbjct: 56 F 56
Score = 36.5 bits (85), Expect = 0.006
Identities = 13/49 (26%), Positives = 28/49 (57%), Gaps = 3/49 (6%)
Query: 120 LRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNE 168
+ V SA+ L +D G +DPYV ++ + + + +++ TL+P ++
Sbjct: 7 VHVHSAEGLSKQDSGGGADPYV---IIKCEGESVRSPVQKDTLSPEFDT 52
>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 = 43.4 bits (103), Expect = 2e-05
Identities = 29/88 (32%), Positives = 43/88 (48%), Gaps = 9/88 (10%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNVP 306
LT+T+L+A L D +D YVKV+ EKR T++ N NP +N +F F
Sbjct: 30 LTVTVLRATGLWG-DYFTSTDGYVKVFFGGQEKR-----TEVIWNNNNPRWNATFDFG-- 81
Query: 307 WEKIRECS-LNVMVMDFDNIGRNELIGR 333
++ L V D DN ++L+G
Sbjct: 82 SVELSPGGKLRFEVWDRDNGWDDDLLGT 109
Score = 35.7 bits (83), Expect = 0.011
Identities = 28/100 (28%), Positives = 37/100 (37%), Gaps = 11/100 (11%)
Query: 116 STLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
+TL + V+ A L + T D YVKV T++ NPRWN T F
Sbjct: 28 ATLTVTVLRATGLWGDYFTST-DGYVKVF---FGGQEKRTEVIWNNNNPRWNATFDFGSV 83
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVDLSE 215
+ L V+D D DD +G C V
Sbjct: 84 ELSPGGK--LRFEVWDRDNGWDDDLLGT-----CSVVPEA 116
>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 = 43.1 bits (102), Expect = 3e-05
Identities = 22/81 (27%), Positives = 40/81 (49%), Gaps = 7/81 (8%)
Query: 120 LRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQK 179
L V+ A L +D+ DP+ + + + H T + ++TL+P+WNE F +
Sbjct: 4 LTVLCADGLAKRDLFRLPDPFAVITVDGGQTH--STDVAKKTLDPKWNEH-----FDLTV 56
Query: 180 LQSRVLHLHVFDYDRFSRDDS 200
S ++ + VFD +F + D
Sbjct: 57 GPSSIITIQVFDQKKFKKKDQ 77
Score = 31.9 bits (73), Expect = 0.26
Identities = 16/57 (28%), Positives = 27/57 (47%), Gaps = 4/57 (7%)
Query: 249 ITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFNV 305
+T+L A L +D+ DP+ + + G+ T + K L+P +NE F V
Sbjct: 4 LTVLCADGLAKRDLFRLPDPFAVITVDGGQTH----STDVAKKTLDPKWNEHFDLTV 56
>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 = 41.6 bits (98), Expect = 1e-04
Identities = 28/87 (32%), Positives = 38/87 (43%), Gaps = 18/87 (20%)
Query: 131 KDMSGTSDPYVKVALLPDKKH----------RLETKIKRRTLNPRW-NETLYFEGFPIQK 179
K M DPYVK+++ P K+H T I T+NP W E F G P
Sbjct: 15 KGMFFNPDPYVKISIQPGKRHIFPALPHHGQECRTSIVENTINPVWHREQFVFVGLP--- 71
Query: 180 LQSRVLHLHVFDYDRFSRDDSIGEVFL 206
+ VL + V D+F++ I FL
Sbjct: 72 --TDVLEIEV--KDKFAKSRPIIRRFL 94
Score = 37.4 bits (87), Expect = 0.003
Identities = 23/67 (34%), Positives = 38/67 (56%), Gaps = 10/67 (14%)
Query: 246 VLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRI--------EKRKTQIFKCNLNPVF 297
+++ L+ARNLK K + DPYVK+ +Q G++ I ++ +T I + +NPV+
Sbjct: 2 SFSLSGLQARNLK-KGMFFNPDPYVKISIQPGKRHIFPALPHHGQECRTSIVENTINPVW 60
Query: 298 -NESFSF 303
E F F
Sbjct: 61 HREQFVF 67
>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 = 40.7 bits (95), Expect = 2e-04
Identities = 30/110 (27%), Positives = 56/110 (50%), Gaps = 7/110 (6%)
Query: 104 QIHFSLEYDFDNSTLILRVISAKELPAKDMSGTSDPYVK--VALLPDKKHRLETKIKRRT 161
++H+SL YD + L + ++ A+ + + + Y+ V++ +K +T +K+
Sbjct: 2 KLHYSLSYDKQKAELHVNILEAENI---SVDAGCECYISGCVSVSEGQKEA-QTALKKLA 57
Query: 162 LNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV 211
L+ +W E L F P ++ L L + DRFSR ++GE+ L L V
Sbjct: 58 LHTQWEEELVFP-LPEEESLDGTLTLTLRCCDRFSRHSTLGELRLKLADV 106
>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 = 40.3 bits (95), Expect = 3e-04
Identities = 27/96 (28%), Positives = 42/96 (43%), Gaps = 8/96 (8%)
Query: 116 STLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
S L + V SAK DPYV+V + D + +T++ ++T NP+WNE F
Sbjct: 2 SQLQITVESAKLKSNSKSFKP-DPYVEVTV--DGQPPKKTEVSKKTSNPKWNEH-----F 53
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQV 211
+ L V+ + D +GE L L +
Sbjct: 54 TVLVTPQSTLEFKVWSHHTLKADVLLGEASLDLSDI 89
Score = 37.3 bits (87), Expect = 0.003
Identities = 28/89 (31%), Positives = 42/89 (47%), Gaps = 11/89 (12%)
Query: 245 SVLTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFN 304
S L IT+ A LK+ + K DPYV+V + G+ +KT++ K NP +NE F+
Sbjct: 2 SQLQITVESA-KLKSNSKSFKPDPYVEVTVD-GQ---PPKKTEVSKKTSNPKWNEHFTVL 56
Query: 305 V-PWEKIRECSLNVMVMDFDNIGRNELIG 332
V P L V + + L+G
Sbjct: 57 VTPQST-----LEFKVWSHHTLKADVLLG 80
>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 = 39.5 bits (93), Expect = 4e-04
Identities = 26/84 (30%), Positives = 42/84 (50%), Gaps = 7/84 (8%)
Query: 126 KEL-PAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRV 184
K L ++ +G PY ++ L + K T++K++T NP WN + E + +SRV
Sbjct: 1 KGLDTSESKTGLLSPYAELYL--NGKLVYTTRVKKKTNNPSWNAS--TEFLVTDRRKSRV 56
Query: 185 LHLHVFDYDRFSRDDSIGEVFLPL 208
+ V D DR D +G V + L
Sbjct: 57 T-VVVKD-DRDRHDPVLGSVSISL 78
>gnl|CDD|216050 pfam00665, rve, Integrase core domain. Integrase mediates
integration of a DNA copy of the viral genome into the
host chromosome. Integrase is composed of three domains.
The amino-terminal domain is a zinc binding domain
pfam02022. This domain is the central catalytic domain.
The carboxyl terminal domain that is a non-specific DNA
binding domain pfam00552. The catalytic domain acts as
an endonuclease when two nucleotides are removed from
the 3' ends of the blunt-ended viral DNA made by reverse
transcription. This domain also catalyzes the DNA strand
transfer reaction of the 3' ends of the viral DNA to the
5' ends of the integration site.
Length = 113
Score = 39.2 bits (92), Expect = 6e-04
Identities = 10/39 (25%), Positives = 15/39 (38%)
Query: 371 HEMQTFLQSVGVSHIRIPTYHPASNGAAENMVGVVKRFL 409
Q L+ +G+ H +P NG E +K L
Sbjct: 75 KAFQELLKELGIKHSFSRPGNPQDNGVVERFNRTLKEEL 113
>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 = 38.4 bits (90), Expect = 0.002
Identities = 26/98 (26%), Positives = 42/98 (42%), Gaps = 19/98 (19%)
Query: 122 VISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKI-KRRTLNPRWNETLYF------EG 174
VI A++L D + + +VK L L T+ + R NP WNE L F E
Sbjct: 6 VIEAQDLVPSDKNRVPEVFVKAQLGN---QVLRTRPSQTRNGNPSWNEELMFVAAEPFED 62
Query: 175 FPIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPLCQVD 212
I ++ RV ++D+ +G +PL ++
Sbjct: 63 HLILSVEDRVGP---------NKDEPLGRAVIPLNDIE 91
>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 = 36.9 bits (86), Expect = 0.004
Identities = 35/132 (26%), Positives = 49/132 (37%), Gaps = 31/132 (23%)
Query: 115 NSTLILRVISAKEL----------PAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNP 164
TL +++ A +L K S DPYV + + D H +T K +T +P
Sbjct: 3 TGTLKIKICEAVDLKPTDWSTRHAVPKKGSQLLDPYVSIDV--DDTHIGKTSTKPKTNSP 60
Query: 165 RWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDSIGE-VFLPLCQVDL-------SEK 216
WNE F + R L L VF D +IG F+ C + S
Sbjct: 61 VWNEE-----FTTEVHNGRNLELTVF------HDAAIGPDDFVANCTISFEDLIQRGSGS 109
Query: 217 PTFWKALKPPAK 228
W L+P K
Sbjct: 110 FDLWVDLEPQGK 121
>gnl|CDD|176025 cd08379, C2D_MCTP_PRT_plant, C2 domain fourth 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 fourth C2
repeat, C2D, and has a type-II topology.
Length = 126
Score = 36.2 bits (84), Expect = 0.007
Identities = 30/96 (31%), Positives = 40/96 (41%), Gaps = 13/96 (13%)
Query: 119 ILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQ 178
IL L AKD G++D Y VA K R T + NPRWNE + +
Sbjct: 6 ILGAQGLDVLRAKDGRGSTDAYC-VAKYGPKWVRTRTVED--SSNPRWNEQYTWPVYDP- 61
Query: 179 KLQSRVLHLHVFD-----YDRFSRDDS-IGEVFLPL 208
VL + VFD + + D IG+V + L
Sbjct: 62 ---CTVLTVGVFDNSQSHWKEAVQPDVLIGKVRIRL 94
>gnl|CDD|222316 pfam13683, rve_3, Integrase core domain.
Length = 67
Score = 34.8 bits (81), Expect = 0.008
Identities = 14/62 (22%), Positives = 24/62 (38%), Gaps = 5/62 (8%)
Query: 381 GVSHIRIPTYHPASNGAAENMVGVVKRFLRKCNWNN----VDEELLNFSQSYNST-PHTT 435
G+ I P NG E+ G ++ E + + + YN+ PH++
Sbjct: 2 GIELSYIAPGKPQQNGFVESFNGTLRDECLNEELFRSLAEARELIEAWREDYNTERPHSS 61
Query: 436 LG 437
LG
Sbjct: 62 LG 63
>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 = 35.8 bits (83), Expect = 0.011
Identities = 24/91 (26%), Positives = 43/91 (47%), Gaps = 7/91 (7%)
Query: 118 LILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPI 177
L+++ I A L +G+S+PY V + + + ++ ++ T NP W+E FE P
Sbjct: 1 LLVKNIKANGLSEA--AGSSNPYC-VLEMDEPPQKYQSSTQKNTSNPFWDEHFLFELSP- 56
Query: 178 QKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
S+ L V+D + S +G +P
Sbjct: 57 ---NSKELLFEVYDNGKKSDSKFLGLAIVPF 84
>gnl|CDD|178538 PLN02952, PLN02952, phosphoinositide phospholipase C.
Length = 599
Score = 33.8 bits (77), Expect = 0.21
Identities = 30/108 (27%), Positives = 47/108 (43%), Gaps = 22/108 (20%)
Query: 138 DPYVKVALL--PDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRF 195
D Y K+ ++ P + +TKI P WNE FP+ + +L + V +YD
Sbjct: 498 DFYTKMYIVGVPADNAKKKTKIIEDNWYPAWNEEF---SFPLTVPELALLRIEVREYDMS 554
Query: 196 SRDDSIGEVFLPLCQVDLSEKPTFWKALKP-----PAKDKCGELLTSL 238
+DD G+ LP+ + L+P P DK GE L ++
Sbjct: 555 EKDDFGGQTCLPVSE------------LRPGIRSVPLHDKKGEKLKNV 590
Score = 30.0 bits (67), Expect = 3.0
Identities = 14/37 (37%), Positives = 21/37 (56%)
Query: 267 DPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSF 303
D Y K+++ K+KT+I + N P +NE FSF
Sbjct: 498 DFYTKMYIVGVPADNAKKKTKIIEDNWYPAWNEEFSF 534
>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 = 32.3 bits (74), Expect = 0.22
Identities = 15/63 (23%), Positives = 27/63 (42%), Gaps = 2/63 (3%)
Query: 245 SVLTITLLKARNLKAKDINGKSD--PYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFS 302
S + +T+++ + D YVK + + + KT K +P +NESF
Sbjct: 2 SSIELTIVRCIGIPLPSGWNPKDLDTYVKFEFPYPNEEPQSGKTSTIKDTNSPEYNESFK 61
Query: 303 FNV 305
N+
Sbjct: 62 LNI 64
>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 = 31.2 bits (71), Expect = 0.44
Identities = 27/93 (29%), Positives = 43/93 (46%), Gaps = 9/93 (9%)
Query: 116 STLILRVISAKELPAKDMSGTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGF 175
+L L V+ A +LP K PY ++L ++ TK+ R NP W+E F+
Sbjct: 4 RSLQLNVLEAHKLPVKH---VPHPYCVISL--NEVKVARTKV-REGPNPVWSEEFVFDDL 57
Query: 176 PIQKLQSRVLHLHVFDYDRFSRDDSIGEVFLPL 208
P + S + L + + S+D I EV + L
Sbjct: 58 P-PDVNSFTISLS--NKAKRSKDSEIAEVTVQL 87
Score = 27.3 bits (61), Expect = 9.5
Identities = 15/58 (25%), Positives = 29/58 (50%), Gaps = 8/58 (13%)
Query: 247 LTITLLKARNLKAKDINGKSDPYVKVWLQFGEKRIEKRKTQIFKCNLNPVFNESFSFN 304
L + +L+A L K + PY + L ++ +T++ + NPV++E F F+
Sbjct: 6 LQLNVLEAHKLPVKHV---PHPYCVISLN----EVKVARTKV-REGPNPVWSEEFVFD 55
>gnl|CDD|181829 PRK09409, PRK09409, IS2 transposase TnpB; Reviewed.
Length = 301
Score = 32.0 bits (72), Expect = 0.69
Identities = 28/106 (26%), Positives = 45/106 (42%), Gaps = 6/106 (5%)
Query: 343 GASETKHWQDMITKPRQTIVQWHRLKPDHEMQTFLQSVGVSHIRIPTYHPASNGAAENMV 402
GA E + D+ + P + + +E + F + +G+ P SNG AE+ V
Sbjct: 178 GAVERRFGNDLPSSPVEWLTDNGSCYRANETRQFARMLGLEPKNTAVRSPESNGIAESFV 237
Query: 403 GVVKR----FLRKCNWNNVDEELLNFSQSYNS-TPHTTLGV-SPAE 442
+KR + K + + L + YN PH+ LG SP E
Sbjct: 238 KTIKRDYISIMPKPDGLTAAKNLAEAFEHYNEWHPHSALGYRSPRE 283
>gnl|CDD|237614 PRK14113, PRK14113, urease accessory protein UreE; Provisional.
Length = 152
Score = 30.7 bits (69), Expect = 0.78
Identities = 14/44 (31%), Positives = 21/44 (47%), Gaps = 4/44 (9%)
Query: 358 RQTIVQ----WHRLKPDHEMQTFLQSVGVSHIRIPTYHPASNGA 397
R T +Q W R KPDH ++ ++ G+S P +GA
Sbjct: 95 RHTKLQIGERWVRFKPDHVLEDLAENYGLSVNHEPAVFEPESGA 138
>gnl|CDD|165762 PLN00196, PLN00196, alpha-amylase; Provisional.
Length = 428
Score = 31.4 bits (71), Expect = 0.98
Identities = 14/36 (38%), Positives = 19/36 (52%)
Query: 80 FMQSRSVSLVDMYIDNTEPSENVGQIHFSLEYDFDN 115
F + S + +YID TEPS V +I S+ Y D
Sbjct: 204 FAKGYSAEVAKVYIDGTEPSFAVAEIWTSMAYGGDG 239
>gnl|CDD|175983 cd04016, C2_Tollip, C2 domain present in Toll-interacting protein
(Tollip). Tollip is a part of the Interleukin-1
receptor (IL-1R) signaling pathway. Tollip is proposed
to link serine/threonine kinase IRAK to IL-1Rs as well
as inhibiting phosphorylation of IRAK. There is a single
C2 domain present in Tollip. 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 = 121
Score = 30.0 bits (68), Expect = 0.98
Identities = 13/41 (31%), Positives = 21/41 (51%), Gaps = 8/41 (19%)
Query: 163 NPRWNETLYFEGFPIQKLQSRV--LHLHVFDYDRFSRDDSI 201
NPRWN+T+ L V +++ +FD F+ D+ I
Sbjct: 46 NPRWNKTIQC------TLPEGVDSIYIEIFDERAFTMDERI 80
>gnl|CDD|177875 PLN02230, PLN02230, phosphoinositide phospholipase C 4.
Length = 598
Score = 31.6 bits (71), Expect = 1.0
Identities = 20/71 (28%), Positives = 36/71 (50%), Gaps = 3/71 (4%)
Query: 141 VKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDS 200
V +A P + +TKI+ T P WN+ F P+ + +L + V ++D +DD
Sbjct: 502 VGIAGAPVDEVMEKTKIEYDTWTPIWNKEFIF---PLAVPELALLRVEVHEHDINEKDDF 558
Query: 201 IGEVFLPLCQV 211
G+ LP+ ++
Sbjct: 559 GGQTCLPVSEI 569
>gnl|CDD|237792 PRK14702, PRK14702, insertion element IS2 transposase InsD;
Provisional.
Length = 262
Score = 30.9 bits (69), Expect = 1.2
Identities = 28/106 (26%), Positives = 45/106 (42%), Gaps = 6/106 (5%)
Query: 343 GASETKHWQDMITKPRQTIVQWHRLKPDHEMQTFLQSVGVSHIRIPTYHPASNGAAENMV 402
GA E + D+ + P + + +E + F + +G+ P SNG AE+ V
Sbjct: 139 GAVERRFGNDLPSSPVEWLTDNGSCYRANETRQFARMLGLEPKNTAVRSPESNGIAESFV 198
Query: 403 GVVKR----FLRKCNWNNVDEELLNFSQSYNS-TPHTTLGV-SPAE 442
+KR + K + + L + YN PH+ LG SP E
Sbjct: 199 KTIKRDYISIMPKPDGLTAAKNLAEAFEHYNEWHPHSALGYRSPRE 244
>gnl|CDD|232900 TIGR00272, DPH2, diphthamide biosynthesis protein 2. This protein
has been shown in Saccharomyces cerevisiae to be one of
several required for the modification of a particular
histidine residue of translation elongation factor 2 to
diphthamide. This modified site can then become the
target for ADP-ribosylation by diphtheria toxin [Protein
fate, Protein modification and repair].
Length = 496
Score = 31.1 bits (70), Expect = 1.6
Identities = 13/50 (26%), Positives = 24/50 (48%)
Query: 55 SSSSSTPLHNKAVANVKAGEHPSSAFMQSRSVSLVDMYIDNTEPSENVGQ 104
S ST H + A +K S++ +Q+RS + +D+TE + +
Sbjct: 435 DSKQSTTRHTASGAVIKGTVSTSASALQNRSWKGLGDDVDSTEVDAKIEE 484
>gnl|CDD|165867 PLN02223, PLN02223, phosphoinositide phospholipase C.
Length = 537
Score = 30.8 bits (69), Expect = 1.6
Identities = 18/76 (23%), Positives = 37/76 (48%), Gaps = 5/76 (6%)
Query: 138 DPYVKVAL--LPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRF 195
D YV++++ +P + ++T +K P W E FP+ ++ V+DY+
Sbjct: 436 DLYVRISIAGVPHDEKIMKTTVKNNEWKPTWGEEF---TFPLTYPDLALISFEVYDYEVS 492
Query: 196 SRDDSIGEVFLPLCQV 211
+ D G+ LP+ ++
Sbjct: 493 TADAFCGQTCLPVSEL 508
>gnl|CDD|188111 TIGR01132, pgm, phosphoglucomutase, alpha-D-glucose
phosphate-specific. This enzyme interconverts
alpha-D-glucose-1-P and alpha-D-glucose-6-P [Energy
metabolism, Sugars].
Length = 544
Score = 30.6 bits (69), Expect = 2.1
Identities = 20/71 (28%), Positives = 28/71 (39%), Gaps = 10/71 (14%)
Query: 1 MFDGFKNHAISKLTLSRFLSQSVA-QLETAGTTVDSNNSKSPVPGSSHAM------EGAI 53
++ G HA+S+ L A +E V NN +P P SHA+ +
Sbjct: 81 LYIGKDTHALSEPAFISVLEVLAANGVEV---IVQENNGFTPTPAVSHAILTHNKKGEPL 137
Query: 54 ASSSSSTPLHN 64
A TP HN
Sbjct: 138 ADGIVITPSHN 148
>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 = 29.2 bits (66), Expect = 2.5
Identities = 14/35 (40%), Positives = 19/35 (54%), Gaps = 2/35 (5%)
Query: 135 GTSDPYVKVALLPDKKHRLETKIKRRTLNPRWNET 169
TSDPY V L + R T++ + NP WNE+
Sbjct: 56 ITSDPYATVDLAGARVAR--TRVIENSENPVWNES 88
>gnl|CDD|177868 PLN02222, PLN02222, phosphoinositide phospholipase C 2.
Length = 581
Score = 30.4 bits (68), Expect = 2.5
Identities = 22/71 (30%), Positives = 35/71 (49%), Gaps = 3/71 (4%)
Query: 141 VKVALLPDKKHRLETKIKRRTLNPRWNETLYFEGFPIQKLQSRVLHLHVFDYDRFSRDDS 200
V +A +P +TK P W+E FE FP+ + +L L V +YD +DD
Sbjct: 485 VGIAGVPGDTVMKKTKTLEDNWIPAWDEV--FE-FPLTVPELALLRLEVHEYDMSEKDDF 541
Query: 201 IGEVFLPLCQV 211
G+ LP+ ++
Sbjct: 542 GGQTCLPVWEL 552
>gnl|CDD|184889 PRK14895, gltX, glutamyl-tRNA synthetase; Provisional.
Length = 513
Score = 29.7 bits (66), Expect = 3.7
Identities = 14/62 (22%), Positives = 34/62 (54%), Gaps = 2/62 (3%)
Query: 408 FLRKCNWNNVDEELLNFSQSYNSTPHTTLGVSPAELHLGR--KLKTTFDKLLPNPTCTQN 465
+L + W++ D+E+++ +Q+ + +LG SP++L + L + ++L N + T
Sbjct: 266 YLLRLGWSHGDDEIISMTQAIDWFNLDSLGKSPSKLDFAKMNSLNAHYLRMLDNDSLTSK 325
Query: 466 KI 467
+
Sbjct: 326 TV 327
>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 = 27.9 bits (62), Expect = 4.7
Identities = 16/81 (19%), Positives = 27/81 (33%), Gaps = 21/81 (25%)
Query: 283 KRKTQIFKCNLNPVFNESFSFNVP---------WEKIRECSLNVMVMDFDNIGRNELIGR 333
K KT++ + P +NE F + +EK E
Sbjct: 32 KAKTRVCRDTTEPNWNEEFEIELEGSQTLRILCYEKCYSKVK----------LDGEGTDA 81
Query: 334 ILLAGKNG--SGASETKHWQD 352
I+ G+ + +TK WQ+
Sbjct: 82 IMGKGQIQLDPQSLQTKKWQE 102
>gnl|CDD|176020 cd08374, C2F_Ferlin, C2 domain sixth 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 sixth C2
repeat, C2E, and has a type-II topology.
Length = 133
Score = 28.0 bits (63), Expect = 5.0
Identities = 23/94 (24%), Positives = 35/94 (37%), Gaps = 25/94 (26%)
Query: 266 SDPYVKVWLQFGEKRIEKRKTQI-FKC-NLNPVFNESFSFN---VPWEK----------- 309
SD YVK WL +K+KT + ++ + FN F F +P EK
Sbjct: 25 SDIYVKGWLD--GLEEDKQKTDVHYRSLDGEGNFNWRFVFPFDYLPAEKKIVVIKKEHFW 82
Query: 310 -------IRECSLNVMVMDFDNIGRNELIGRILL 336
L + V D D ++ +G + L
Sbjct: 83 SLDETEYKIPPKLTLQVWDNDKFSPDDFLGSLEL 116
Score = 28.0 bits (63), Expect = 5.6
Identities = 12/27 (44%), Positives = 16/27 (59%)
Query: 182 SRVLHLHVFDYDRFSRDDSIGEVFLPL 208
L L V+D D+FS DD +G + L L
Sbjct: 92 PPKLTLQVWDNDKFSPDDFLGSLELDL 118
>gnl|CDD|180565 PRK06450, PRK06450, threonine synthase; Validated.
Length = 338
Score = 28.9 bits (65), Expect = 6.1
Identities = 14/41 (34%), Positives = 23/41 (56%), Gaps = 3/41 (7%)
Query: 260 KDINGKSDPYVKVWLQFGEKR--IEKRKTQIFKCN-LNPVF 297
K++ K+ PY+K ++ GE R + K+ FK + LNP
Sbjct: 38 KNLERKNFPYIKHFISLGEGRTPLIKKGNIWFKLDFLNPTG 78
>gnl|CDD|236522 PRK09450, cyaA, adenylate cyclase; Provisional.
Length = 830
Score = 28.7 bits (65), Expect = 8.0
Identities = 13/46 (28%), Positives = 22/46 (47%), Gaps = 8/46 (17%)
Query: 419 EELLNF-SQSY------NSTPHTTLGVSPAELH-LGRKLKTTFDKL 456
EL++ QSY + + +SP ++ L RKL F++L
Sbjct: 385 NELVDALMQSYRNLIRFARRNNLSSSISPQDIGILTRKLYAAFERL 430
>gnl|CDD|225382 COG2826, Tra8, Transposase and inactivated derivatives, IS30 family
[DNA replication, recombination, and repair].
Length = 318
Score = 28.5 bits (64), Expect = 8.9
Identities = 19/57 (33%), Positives = 26/57 (45%), Gaps = 3/57 (5%)
Query: 390 YHPASNGAAENMVGVVKRFLRK-CNWNNV-DEELLNFSQSYNSTPHTTLGV-SPAEL 443
Y G EN G+++RFL K + V EEL + N P LG +P E+
Sbjct: 253 YASWQRGTNENTNGLIRRFLPKGTDLAAVTQEELAAIADLLNHRPRKCLGYKTPYEV 309
>gnl|CDD|184855 PRK14853, nhaA, pH-dependent sodium/proton antiporter; Provisional.
Length = 423
Score = 28.5 bits (64), Expect = 9.3
Identities = 10/32 (31%), Positives = 12/32 (37%), Gaps = 5/32 (15%)
Query: 414 WNNVDEELLNFSQSYNSTPHTTLGVSPAELHL 445
W N + SY + LG P LHL
Sbjct: 32 WANS-----PWGDSYFALRDFKLGPEPGGLHL 58
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
0.317 0.132 0.392
Gapped
Lambda K H
0.267 0.0645 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 23,517,331
Number of extensions: 2227685
Number of successful extensions: 2035
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1823
Number of HSP's successfully gapped: 205
Length of query: 475
Length of database: 10,937,602
Length adjustment: 101
Effective length of query: 374
Effective length of database: 6,457,848
Effective search space: 2415235152
Effective search space used: 2415235152
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: 61 (27.5 bits)