RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy3181
(349 letters)
>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 = 238 bits (610), Expect = 9e-80
Identities = 88/122 (72%), Positives = 99/122 (81%), Gaps = 1/122 (0%)
Query: 46 VGRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLLPQ 105
VGRL+ITVVQAKLVKNYGL T+MDPY R+RVGH VYET T +G K PRWNK + C LP+
Sbjct: 1 VGRLSITVVQAKLVKNYGL-TRMDPYCRIRVGHAVYETPTAYNGAKNPRWNKTIQCTLPE 59
Query: 106 GVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDKEGMINLVL 165
GV SIY+EI+DE +FTMDE IAW I IP SV GET +DW+ LSGKQGEDKEGMINLV
Sbjct: 60 GVDSIYIEIFDERAFTMDERIAWTHITIPESVFNGETLDDWYSLSGKQGEDKEGMINLVF 119
Query: 166 SY 167
SY
Sbjct: 120 SY 121
>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 = 69.8 bits (171), Expect = 5e-15
Identities = 28/103 (27%), Positives = 54/103 (52%), Gaps = 3/103 (2%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPYVRLRVG-HCVYETHTDPSGGKFPRWNKE-VFCLLPQG 106
L +TV++A+ + L K DPYV++ +G ++T + P WN+ F +L
Sbjct: 1 LRVTVIEARNLPAKDLNGKSDPYVKVSLGGKQKFKTKVVKNTLN-PVWNETFEFPVLDPE 59
Query: 107 VTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPL 149
++ +E++D+ F+ D+ + +IP+ + G+ E W PL
Sbjct: 60 SDTLTVEVWDKDRFSKDDFLGEVEIPLSELLDSGKEGELWLPL 102
>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 = 69.6 bits (171), Expect = 9e-15
Identities = 32/122 (26%), Positives = 59/122 (48%), Gaps = 5/122 (4%)
Query: 47 GRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKE-VFCLLPQ 105
G L + V++A+ + N + K DPY LR+G +T TD GG+ P W++E F +
Sbjct: 1 GTLVVVVLKARNLPNKRKLDKQDPYCVLRIGGVTKKTKTDFRGGQHPEWDEELRFEITED 60
Query: 106 GVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDKEGMINLVL 165
+ + ++D+ +LI ++ + S +K +DW+ L G + L L
Sbjct: 61 KKPILKVAVFDD-DKRKPDLIGDTEVDL-SPALKEGEFDDWYEL--TLKGRYAGEVYLEL 116
Query: 166 SY 167
++
Sbjct: 117 TF 118
>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 = 60.7 bits (148), Expect = 1e-11
Identities = 33/125 (26%), Positives = 55/125 (44%), Gaps = 11/125 (8%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPYVRLRV-GHCVYETHTDPSGGKFPRWNKEVFCLLP--- 104
L IT++ A+ +KN L KM Y + + T D GG P WN+ + L
Sbjct: 2 LEITIISAEDLKNVNLFGKMKVYAVVWIDPSHKQSTPVDRDGGTNPTWNETLRFPLDERL 61
Query: 105 --QGVTSIYLEIYDECSFTMDELIAWAKIP----IPSSVMKGETHEDWFPLSGKQGEDKE 158
QG ++ +E+Y E D+LI ++P + + GE + L G+ +
Sbjct: 62 LQQGRLALTIEVYCERPSLGDKLIGEVRVPLKDLLDGASPAGELRFLSYQLRRPSGKPQ- 120
Query: 159 GMINL 163
G++N
Sbjct: 121 GVLNF 125
>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 = 58.7 bits (142), Expect = 5e-11
Identities = 25/103 (24%), Positives = 46/103 (44%), Gaps = 6/103 (5%)
Query: 48 RLNITVVQAKLVKNYGLVTKMDPYVRLRVGH---CVYETHTDPSGGKFPRWNKE-VFCLL 103
L + ++ A+ + K DPYV++ + +T + P WN+ F +
Sbjct: 1 TLTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEKKKTKVVKNTLN-PVWNETFEFEVP 59
Query: 104 PQGVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDW 146
P + + +E+YD+ F D+ I IP+ S ++ G HE
Sbjct: 60 PPELAELEIEVYDKDRFGRDDFIGQVTIPL-SDLLLGGRHEKL 101
>gnl|CDD|215765 pfam00168, C2, C2 domain.
Length = 85
Score = 53.8 bits (130), Expect = 2e-09
Identities = 23/86 (26%), Positives = 37/86 (43%), Gaps = 5/86 (5%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPYVRLRVG---HCVYETHTDPSGGKFPRWNKE-VFCLLP 104
L +TV+ AK + L K DPYV++ +G +T P WN+ F +
Sbjct: 1 LRVTVISAKNLPPKDLNGKSDPYVKVSLGGQKKDTKKTKVVK-NTLNPVWNETFTFEVTL 59
Query: 105 QGVTSIYLEIYDECSFTMDELIAWAK 130
+ + +E+YD F D+ I
Sbjct: 60 PELAELRIEVYDYDRFGKDDFIGEVT 85
>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 = 45.7 bits (109), Expect = 2e-06
Identities = 37/134 (27%), Positives = 59/134 (44%), Gaps = 28/134 (20%)
Query: 47 GRLNITVVQAK-----------LVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRW 95
G L I V++A+ LVK K DPYV +RVG +++ P+W
Sbjct: 1 GVLRIHVIEAQDLVAKDKFVGGLVKG-----KSDPYVIVRVGAQTFKSKVIKENLN-PKW 54
Query: 96 NKEVF-CLLPQ--GVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGK 152
N EV+ ++ + G + +E++DE D+ + I + S KG E W PL
Sbjct: 55 N-EVYEAVVDEVPG-QELEIELFDE-DPDKDDFLGRLSIDLGSVEKKGFIDE-WLPLEDV 110
Query: 153 QGEDKEGMINLVLS 166
+ G ++L L
Sbjct: 111 K----SGRLHLKLE 120
>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 = 42.8 bits (101), Expect = 3e-05
Identities = 35/130 (26%), Positives = 54/130 (41%), Gaps = 13/130 (10%)
Query: 47 GRLNITVVQAK-LV-KNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLLP 104
G L + VV+AK L K+ K DPY L VG ++T T P+ P+WN +C P
Sbjct: 1 GVLRVHVVEAKDLAAKDRSGKGKSDPYAILSVGAQRFKTQTIPNTLN-PKWN--YWCEFP 57
Query: 105 ---QGVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHE--DWFPL---SGKQGED 156
+ L ++D+ F + + I + G+T + W L +
Sbjct: 58 IFSAQNQLLKLILWDKDRFAGKDYLGEFDIALEEVFADGKTGQSDKWITLKSTRPGKTSV 117
Query: 157 KEGMINLVLS 166
G I+L S
Sbjct: 118 VSGEIHLQFS 127
>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 = 42.8 bits (101), Expect = 3e-05
Identities = 30/119 (25%), Positives = 48/119 (40%), Gaps = 18/119 (15%)
Query: 51 ITVVQAKLVKNYGLVTK-----MDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLLPQ 105
+TV+QA+ GL+ K D YV +++G Y T P W +E LP
Sbjct: 3 VTVLQAR-----GLLCKGKSGTNDAYVIIQLGKEKYSTSVKEKTTS-PVWKEECSFELPG 56
Query: 106 GVT------SIYLEIYDECSFTMDELIAWAKIPIPS-SVMKGETHEDWFPLSGKQGEDK 157
++ ++ L + +D+ + IP+ KG WF L K G+D
Sbjct: 57 LLSGNGNRATLQLTVMHRNLLGLDKFLGQVSIPLNDLDEDKGRRRTRWFKLESKPGKDD 115
>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 = 42.2 bits (100), Expect = 4e-05
Identities = 26/109 (23%), Positives = 40/109 (36%), Gaps = 11/109 (10%)
Query: 48 RLNITVVQAKLVKNYGLVTKMDPYVRLRV----GHCVYETHTDPSGGKFPRWNKEVFCLL 103
L + V++A + L++ D YV L + S P WN E F
Sbjct: 1 LLTVRVLRATNITKGDLLSTPDCYVELWLPTASDEKKRTKTIKNS--INPVWN-ETFEFR 57
Query: 104 PQGVTSIYLEI--YDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLS 150
Q LE+ DE + MD+ + + S + GE F L+
Sbjct: 58 IQSQVKNVLELTVMDE-DYVMDDHLGTVLFDV-SKLKLGEKVRVTFSLN 104
>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 = 38.8 bits (91), Expect = 6e-04
Identities = 27/105 (25%), Positives = 52/105 (49%), Gaps = 11/105 (10%)
Query: 69 DPYVRLRV-GHCVYETHT---DPSGGKFPRWNKEVFCLLPQGVTS-IYLEIYDECSFTMD 123
DPYV+ + G VY++ T + + P W+ E F L + VT +Y++++D D
Sbjct: 22 DPYVKFKYGGKTVYKSKTIYKNLN----PVWD-EKFTLPIEDVTQPLYIKVFDYDRGLTD 76
Query: 124 ELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDKEGMINLVLSYT 168
+ + A + + S++ + E L ++ G I+LV++ T
Sbjct: 77 DFMGSAFVDL-STLELNKPTEVKLKLEDPNSDEDLGYISLVVTLT 120
>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 = 38.5 bits (90), Expect = 8e-04
Identities = 26/99 (26%), Positives = 46/99 (46%), Gaps = 6/99 (6%)
Query: 47 GRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLL--- 103
G L + ++ AK +++ + K+DPYV ++ ++ G+ P WN E F
Sbjct: 1 GTLEVLLISAKGLQDTDFLGKIDPYVIIQCRTQERKSKVAKGDGRNPEWN-EKFKFTVEY 59
Query: 104 --PQGVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKG 140
G T + L I D+ +F+ D+ I A I + +G
Sbjct: 60 PGWGGDTKLILRIMDKDNFSDDDFIGEATIHLKGLFEEG 98
>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 = 37.0 bits (86), Expect = 0.003
Identities = 18/60 (30%), Positives = 32/60 (53%), Gaps = 2/60 (3%)
Query: 93 PRWNKE-VFCLLPQGVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSG 151
P W++E VF LP V S + + ++ + D IA + + S + G+ ++W+PLS
Sbjct: 46 PVWSEEFVFDDLPPDVNSFTISLSNKAKRSKDSEIAEVTVQL-SKLQNGQETDEWYPLSS 104
>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 = 36.5 bits (85), Expect = 0.004
Identities = 36/127 (28%), Positives = 56/127 (44%), Gaps = 19/127 (14%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPY--VRLRVGHCVYETHT--DPSGGKFPRWNKE-VFCLL 103
L + +++AK + + G DPY V L V T T + P W +E VF
Sbjct: 2 LRLRILEAKNLPSKGT---RDPYCTVSLDQVE-VARTKTVEKLN----PFWGEEFVFDDP 53
Query: 104 PQGVTSIYLEIY--DECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSG-KQGEDKEGM 160
P VT L Y D+ S D +I K+ + S + G+ ++WFPL+ + +G
Sbjct: 54 PPDVTFFTLSFYNKDKRSKDRDIVIG--KVAL-SKLDLGQGKDEWFPLTPVDPDSEVQGS 110
Query: 161 INLVLSY 167
+ L Y
Sbjct: 111 VRLRARY 117
>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 = 34.1 bits (79), Expect = 0.026
Identities = 28/92 (30%), Positives = 42/92 (45%), Gaps = 10/92 (10%)
Query: 56 AKLVKNYGLVTKMDPYVRLRV-GHCVYETHTDPSGGKFPRWNKEVFCLLPQGVTS----I 110
A +KN V K+DPYVR+ V G T T + P W++ ++ +P VTS I
Sbjct: 10 ANDLKNLEGVGKIDPYVRVLVNGIVKGRTVTISN-TLNPVWDEVLY--VP--VTSPNQKI 64
Query: 111 YLEIYDECSFTMDELIAWAKIPIPSSVMKGET 142
LE+ D D + +I + + K E
Sbjct: 65 TLEVMDYEKVGKDRSLGSVEINVSDLIKKNED 96
>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 = 34.2 bits (79), Expect = 0.031
Identities = 25/84 (29%), Positives = 39/84 (46%), Gaps = 4/84 (4%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPYVRLRV-GHCVYETHTDPSGGKFPRWNKEVFCLLPQGV 107
L ITV AKL K+ K DPYV + V G +T P+WN E F +L
Sbjct: 4 LQITVESAKL-KSNSKSFKPDPYVEVTVDGQPPKKT-EVSKKTSNPKWN-EHFTVLVTPQ 60
Query: 108 TSIYLEIYDECSFTMDELIAWAKI 131
+++ +++ + D L+ A +
Sbjct: 61 STLEFKVWSHHTLKADVLLGEASL 84
>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 = 33.3 bits (77), Expect = 0.054
Identities = 25/99 (25%), Positives = 45/99 (45%), Gaps = 14/99 (14%)
Query: 48 RLNITVVQA-KLVKNYGLVT-KMDPYVRLRVGHCV-------YETHTDPSGGKFPRWNKE 98
L I ++ +L K G +DPYV + + H + ++T + G P WN+
Sbjct: 3 TLTIKIISGQQLPKPKGDKGSIVDPYVEVEI-HGLPADDSAKFKTKVVKNNGFNPVWNET 61
Query: 99 -VF-CLLPQGVTSIYLEIYDECSFTMDELIAWAKIPIPS 135
F +P+ + + +YDE S D+ + A +P+ S
Sbjct: 62 FEFDVTVPE-LAFLRFVVYDEDSGD-DDFLGQACLPLDS 98
>gnl|CDD|133343 cd04143, Rhes_like, Ras homolog enriched in striatum (Rhes) and
activator of G-protein signaling 1 (Dexras1/AGS1). This
subfamily includes Rhes (Ras homolog enriched in
striatum) and Dexras1/AGS1 (activator of G-protein
signaling 1). These proteins are homologous, but exhibit
significant differences in tissue distribution and
subcellular localization. Rhes is found primarily in the
striatum of the brain, but is also expressed in other
areas of the brain, such as the cerebral cortex,
hippocampus, inferior colliculus, and cerebellum. Rhes
expression is controlled by thyroid hormones. In rat
PC12 cells, Rhes is farnesylated and localizes to the
plasma membrane. Rhes binds and activates PI3K, and
plays a role in coupling serpentine membrane receptors
with heterotrimeric G-protein signaling. Rhes has
recently been shown to be reduced under conditions of
dopamine supersensitivity and may play a role in
determining dopamine receptor sensitivity. Dexras1/AGS1
is a dexamethasone-induced Ras protein that is expressed
primarily in the brain, with low expression levels in
other tissues. Dexras1 localizes primarily to the
cytoplasm, and is a critical regulator of the circadian
master clock to photic and nonphotic input. Most Ras
proteins contain a lipid modification site at the
C-terminus, with a typical sequence motif CaaX, where a
= an aliphatic amino acid and X = any amino acid. Lipid
binding is essential for membrane attachment, a key
feature of most Ras proteins.
Length = 247
Score = 34.0 bits (78), Expect = 0.085
Identities = 15/37 (40%), Positives = 23/37 (62%), Gaps = 3/37 (8%)
Query: 300 KLDILDTYLFSANKPIPLLKKFKIRTRSLFLQIFGID 336
+LDILDT S N P P +++ I T +F+ +F +D
Sbjct: 49 QLDILDT---SGNHPFPAMRRLSILTGDVFILVFSLD 82
>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 = 33.1 bits (76), Expect = 0.086
Identities = 25/90 (27%), Positives = 47/90 (52%), Gaps = 6/90 (6%)
Query: 46 VGRLNITVVQAK--LVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLL 103
+G L + VV+ V++ T DPYV L +G+ +T P WN+E+ +
Sbjct: 1 LGLLKVRVVRGTNLAVRD---FTSSDPYVVLTLGNQKVKTRVIKKNLN-PVWNEELTLSV 56
Query: 104 PQGVTSIYLEIYDECSFTMDELIAWAKIPI 133
P + + LE++D+ +F+ D+ + A+I +
Sbjct: 57 PNPMAPLKLEVFDKDTFSKDDSMGEAEIDL 86
>gnl|CDD|178585 PLN03008, PLN03008, Phospholipase D delta.
Length = 868
Score = 34.3 bits (78), Expect = 0.11
Identities = 23/99 (23%), Positives = 43/99 (43%), Gaps = 2/99 (2%)
Query: 57 KLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCLLPQGVTSIYLEIYD 116
K ++++ V DPYV + V + P W+++ + + ++ D
Sbjct: 66 KNIRSHRKVITSDPYVTVVVPQATLARTRVLKNSQEPLWDEKFNISIAHPFAYLEFQVKD 125
Query: 117 ECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGKQGE 155
+ F ++I AKIP+ + GE WFP+ G G+
Sbjct: 126 DDVFGA-QIIGTAKIPV-RDIASGERISGWFPVLGASGK 162
>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 = 31.7 bits (72), Expect = 0.18
Identities = 29/116 (25%), Positives = 51/116 (43%), Gaps = 7/116 (6%)
Query: 48 RLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCL-LPQG 106
RL V++A+ + DP+VR+ ET +PRWN EVF L +G
Sbjct: 1 RLRCHVLEARDLAPKDRNGTSDPFVRVFYNGQTLETSV-VKKSCYPRWN-EVFEFELMEG 58
Query: 107 VTS-IYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLS--GKQGEDKEG 159
S + +E++D + ++ + I ++ + + E WF L + E+ G
Sbjct: 59 ADSPLSVEVWDWDLVSKNDFLGKVVFSI-QTLQQAKQEEGWFRLLPDPRAEEESGG 113
>gnl|CDD|237513 PRK13803, PRK13803, bifunctional phosphoribosylanthranilate
isomerase/tryptophan synthase subunit beta; Provisional.
Length = 610
Score = 32.5 bits (74), Expect = 0.33
Identities = 18/88 (20%), Positives = 35/88 (39%), Gaps = 9/88 (10%)
Query: 30 ELAGAYSTASSLIQNPVGRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSG 89
+L GA S A + + +I + + L+ + +D Y V + +++ T G
Sbjct: 84 QLHGAESKAEPAYCQRIYKKSIKKIGSFLIDDAFGFEVLDEYRDH-VKYFLFDNKTKIYG 142
Query: 90 G--------KFPRWNKEVFCLLPQGVTS 109
G KF +N + L G++
Sbjct: 143 GSGKSFDWEKFYNYNFKFPFFLSGGLSP 170
>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 = 30.7 bits (70), Expect = 0.45
Identities = 28/117 (23%), Positives = 43/117 (36%), Gaps = 20/117 (17%)
Query: 51 ITVVQAKLVKNYGLVTKMDPYVRL-------RVG--HCVYETHTDPSGGKFPRWNKEVFC 101
I +V+A+ +K DPYV L R+ +Y+T PRW++E
Sbjct: 5 IRIVRAENLKADSSNGLSDPYVTLVDTNGKRRIAKTRTIYDTLN-------PRWDEEFEL 57
Query: 102 LLPQGVTS-IYLEIYDECSFTMDELIAWAKIPIPSSVMK--GETHEDWFPLSGKQGE 155
+P G I ++D +L A + + G E W L QG
Sbjct: 58 EVPAGEPLWISATVWDRSFVGKHDLCGRASLKLDPKRFGDDGLPREIWLDLD-TQGR 113
>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 = 30.6 bits (69), Expect = 0.48
Identities = 10/27 (37%), Positives = 18/27 (66%)
Query: 47 GRLNITVVQAKLVKNYGLVTKMDPYVR 73
GRL +T+++A+ +K + DPYV+
Sbjct: 14 GRLTLTIIKARNLKAMDITGFSDPYVK 40
>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 = 30.6 bits (69), Expect = 0.52
Identities = 23/75 (30%), Positives = 35/75 (46%), Gaps = 11/75 (14%)
Query: 48 RLNITVVQAKLVKNYGLVTK-----MDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCL 102
+++ITVV A+ GL+ K DPYV ++VG T T P P WN++
Sbjct: 2 KISITVVCAQ-----GLIAKDKTGTSDPYVTVQVGKTKKRTKTIP-QNLNPVWNEKFHFE 55
Query: 103 LPQGVTSIYLEIYDE 117
I + ++DE
Sbjct: 56 CHNSSDRIKVRVWDE 70
>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 = 30.3 bits (69), Expect = 0.53
Identities = 32/122 (26%), Positives = 57/122 (46%), Gaps = 10/122 (8%)
Query: 49 LNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKEVFCL--LPQG 106
+ I +V+ K + DPYV+ R+G+ Y++ P+W E F L
Sbjct: 2 VTIVLVEGKNLPPMDDNGLSDPYVKFRLGNEKYKSKVCSKTLN-PQW-LEQFDLHLFDDQ 59
Query: 107 VTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDKEGMINLVLS 166
+ +E++D+ + DE I +I + S++ + +TH L ED EG + L+L+
Sbjct: 60 SQILEIEVWDKDTGKKDEFIGRCEIDL-SALPREQTHSLELEL-----EDGEGSLLLLLT 113
Query: 167 YT 168
T
Sbjct: 114 LT 115
>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 = 30.4 bits (69), Expect = 0.56
Identities = 23/117 (19%), Positives = 51/117 (43%), Gaps = 24/117 (20%)
Query: 69 DPYVRLRVGHCVYETHTDPSGGKF----------PRWNKE-VFCLLPQGVTSIYLEIYDE 117
DPYV++ +Y+ + P+WN+E F + P+ + E++DE
Sbjct: 22 DPYVKI----SLYDPDGNGEIDSVQTKTIKKTLNPKWNEEFFFRVNPRE-HRLLFEVFDE 76
Query: 118 CSFTMDELIAWAKIPIPSSVMKGE------THEDWFPLSGKQGEDK-EGMINLVLSY 167
T D+ + ++P+ + + T +D + L + + + +G + L ++Y
Sbjct: 77 NRLTRDDFLGQVEVPLNNLPTETPGNERRYTFKD-YLLRPRSSKSRVKGHLRLYMAY 132
>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 = 29.9 bits (68), Expect = 1.0
Identities = 31/125 (24%), Positives = 50/125 (40%), Gaps = 24/125 (19%)
Query: 49 LNITVVQAK-LV---KNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWNKE-VFCLL 103
L +TV++A+ LV KN + +V+ ++G+ V T + P WN+E +F
Sbjct: 2 LRVTVIEAQDLVPSDKN----RVPEVFVKAQLGNQVLRTRPSQTRNGNPSWNEELMF--- 54
Query: 104 PQGVTS------IYLEIYDECSFTMDELIAWAKIP---IPSSVMKGETHEDWFPLSGKQG 154
V + + L + D DE + A IP I V WF L G
Sbjct: 55 ---VAAEPFEDHLILSVEDRVGPNKDEPLGRAVIPLNDIERRVDDRPVPSRWFSLERPGG 111
Query: 155 EDKEG 159
++
Sbjct: 112 AMEQK 116
>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 = 29.6 bits (67), Expect = 1.5
Identities = 28/113 (24%), Positives = 40/113 (35%), Gaps = 22/113 (19%)
Query: 69 DPYVRLRVGHC-VYETHTDPSGGKFPRWNKEVFCLLPQGVTSIYLEIY-DECSFTMD--- 123
DPY + + V T + P WN E F IY Y FT+
Sbjct: 59 DPYATVDLAGARVARTRVIENSEN-PVWN-ESF--------HIYCAHYASHVEFTVKDND 108
Query: 124 ----ELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDKEGMINLVLSYTVSFF 172
+LI A IP+ ++ GE E W P+ G K + ++ F
Sbjct: 109 VVGAQLIGRAYIPV-EDLLSGEPVEGWLPILDSNG--KPPKPGAKIRVSLQFT 158
>gnl|CDD|227371 COG5038, COG5038, Ca2+-dependent lipid-binding protein, contains C2
domain [General function prediction only].
Length = 1227
Score = 29.7 bits (67), Expect = 2.5
Identities = 21/102 (20%), Positives = 40/102 (39%), Gaps = 18/102 (17%)
Query: 44 NPVGRLNITVVQAK-LVKNYGLVT-KMDPYVRLRVGHCVYETHTDPSGGKF--------P 93
+G + + + A+ L K+ + +DPY+ D GK P
Sbjct: 433 TAIGVVEVKIKSAEGLKKSDSTINGTVDPYI-------TVTFS-DRVIGKTRVKKNTLNP 484
Query: 94 RWNKEVFCLLPQGVTSIYLEIYDECSFTMDELIAWAKIPIPS 135
WN+ + LL + L +YD SF D+++ ++ +
Sbjct: 485 VWNETFYILLNSFTDPLNLSLYDFNSFKSDKVVGSTQLDLAL 526
Score = 28.6 bits (64), Expect = 5.9
Identities = 21/98 (21%), Positives = 41/98 (41%)
Query: 36 STASSLIQNPVGRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRW 95
S++ ++ P+G + ++V +A ++N K DPY + V + V S P W
Sbjct: 700 SSSKTVYDTPIGAIRVSVRKANDLRNEIPGGKSDPYATVLVNNLVKYRTIYGSSTLNPIW 759
Query: 96 NKEVFCLLPQGVTSIYLEIYDECSFTMDELIAWAKIPI 133
N+ ++ + + LE D D + I +
Sbjct: 760 NEILYVPVTSKNQRLTLECMDYEESGDDRNLGEVNINV 797
>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 = 28.0 bits (63), Expect = 3.2
Identities = 23/100 (23%), Positives = 40/100 (40%), Gaps = 15/100 (15%)
Query: 47 GRLNITVVQAKLVKNYGLVT-KMDPYVRL---RVGHCVYETHT---DPSGGKFPRWNKEV 99
G L +T+ +A + T DPYV + G +Y T D + P W +
Sbjct: 1 GVLVVTIHRATDLPKADFGTGSSDPYVTASFAKFGKPLYSTRIIRKDLN----PVWEETW 56
Query: 100 F-CLLPQGVTS---IYLEIYDECSFTMDELIAWAKIPIPS 135
F + P V + + ++D FT D+ + +I +
Sbjct: 57 FVLVTPDEVKAGERLSCRLWDSDRFTADDRLGRVEIDLKE 96
>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 = 27.6 bits (62), Expect = 4.1
Identities = 33/127 (25%), Positives = 55/127 (43%), Gaps = 24/127 (18%)
Query: 54 VQAKLVKNYGLVT-----KMDPYVRLRVGHCVYETHT-----DPSGGKFPRWNKEVFCLL 103
+Q K+++ GL K DP+ L + + +THT +P WNK +F
Sbjct: 3 LQVKVIRASGLAAADIGGKSDPFCVLELVNARLQTHTIYKTLNPE------WNK-IFTFP 55
Query: 104 PQGVTSIYLE--IYDECSFTMDELIAWAKIPIPSSVMKGETHEDWFPLSGKQGEDK-EGM 160
+ + + LE +YDE E + IP+ S+ GE W+ L K+ + +G
Sbjct: 56 IKDIHDV-LEVTVYDEDKDKKPEFLGKVAIPL-LSIKNGE--RKWYALKDKKLRTRAKGS 111
Query: 161 INLVLSY 167
I L +
Sbjct: 112 ILLEMDV 118
>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 = 27.7 bits (62), Expect = 5.2
Identities = 16/60 (26%), Positives = 28/60 (46%), Gaps = 1/60 (1%)
Query: 37 TASSLIQNPVGRLNITVVQAKLVKNYGLVTKMDPYVRLRVGHCVYETHTDPSGGKFPRWN 96
A S + +GRL + +V+ + +K K DPY + +G ++T P+WN
Sbjct: 5 LARSQRASGIGRLMVVIVEGRDLKPCNSNGKSDPYCEVSMGSQEHKTKVVS-DTLNPKWN 63
>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 = 27.5 bits (61), Expect = 5.4
Identities = 10/32 (31%), Positives = 21/32 (65%)
Query: 47 GRLNITVVQAKLVKNYGLVTKMDPYVRLRVGH 78
GRLN+ +++AK + + DP+V++++ H
Sbjct: 14 GRLNVDIIRAKQLLQTDMSQGSDPFVKIQLVH 45
>gnl|CDD|184795 PRK14698, PRK14698, V-type ATP synthase subunit A; Provisional.
Length = 1017
Score = 28.8 bits (64), Expect = 5.8
Identities = 12/31 (38%), Positives = 20/31 (64%)
Query: 102 LLPQGVTSIYLEIYDECSFTMDELIAWAKIP 132
++P G+ +EI DE +T++E+IA K P
Sbjct: 150 MVPPGIEGEIVEIADEGEYTIEEVIAKVKTP 180
>gnl|CDD|191750 pfam07467, BLIP, Beta-lactamase inhibitor (BLIP). The structure of
BLIP reveals two structural domains, which form a polar,
concave surface that docks onto a predominantly polar,
convex protrusion on beta-lactamase. The ability of BLIP
to adapt to a variety of class A beta-lactamases is
thought to be due to flexibility between these two
domains.
Length = 156
Score = 27.6 bits (61), Expect = 5.9
Identities = 13/52 (25%), Positives = 22/52 (42%)
Query: 95 WNKEVFCLLPQGVTSIYLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDW 146
+K LL ++ L Y++ + M E WA +P S E + +W
Sbjct: 65 DSKRQEKLLAASAPTLTLAKYNQTTVGMTEAQVWAAVPQDSCTTWSEYYPNW 116
>gnl|CDD|148445 pfam06838, Alum_res, Aluminium resistance protein. This family
represents the aluminium resistance protein, which
confers resistance to aluminium in bacteria. Structural
characterisation has shown proteins in this family bind
a pyridoxal-5'-phosphate cofactor, and that they belongs
to the PLP dependent aminotransferase superfamily.
Crystal packing analysis suggests that in solution, a
tetramer may be the stable oligomeric form. This is in
contrast to most other aminotransferases which form
dimers (information from TOPSAN).
Length = 405
Score = 28.1 bits (63), Expect = 8.2
Identities = 17/44 (38%), Positives = 21/44 (47%), Gaps = 7/44 (15%)
Query: 239 GAYSTAGSLIQNPVGRLNITVVQILSIGRYLVPTYQIVSGAYYR 282
GA AGSLI+NP G I G Y+ ++V A YR
Sbjct: 213 GADLIAGSLIKNPGG-------GIAKTGGYIAGKEELVEQASYR 249
>gnl|CDD|225314 COG2516, COG2516, Biotin synthase-related enzyme [General function
prediction only].
Length = 339
Score = 27.8 bits (62), Expect = 8.9
Identities = 13/67 (19%), Positives = 23/67 (34%), Gaps = 23/67 (34%)
Query: 111 YLEIYDECSFTMDELIAWAKIPIPSSVMKGETHEDWF-------------------PLSG 151
Y E ++ + E ++ I V GE+ +D PL G
Sbjct: 173 YWEFLEKVA----EAFGKGRVGIHLIVGLGESDKDIVETIKRVRKRGGIVSLFAFTPLKG 228
Query: 152 KQGEDKE 158
Q E+++
Sbjct: 229 TQMENRK 235
>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 = 27.0 bits (60), Expect = 9.5
Identities = 11/37 (29%), Positives = 21/37 (56%), Gaps = 1/37 (2%)
Query: 39 SSLIQNPV-GRLNITVVQAKLVKNYGLVTKMDPYVRL 74
SL NP R+ + +++A+ +K + DPYV++
Sbjct: 6 LSLCYNPTANRITVNIIKARNLKAMDINGTSDPYVKV 42
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
0.320 0.136 0.402
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: 17,536,517
Number of extensions: 1669481
Number of successful extensions: 1335
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1324
Number of HSP's successfully gapped: 47
Length of query: 349
Length of database: 10,937,602
Length adjustment: 98
Effective length of query: 251
Effective length of database: 6,590,910
Effective search space: 1654318410
Effective search space used: 1654318410
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.8 bits)
S2: 59 (26.7 bits)