RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy12822
(82 letters)
>gnl|CDD|215891 pfam00387, PI-PLC-Y, Phosphatidylinositol-specific phospholipase C,
Y domain. This associates with pfam00388 to form a
single structural unit.
Length = 117
Score = 129 bits (328), Expect = 4e-41
Identities = 41/63 (65%), Positives = 49/63 (77%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRP 64
Q SRVYPKG R+DSSNY+P P WN G QM+ALN+QTPD MQ+N A F NG CGY+L+P
Sbjct: 54 QLSRVYPKGLRVDSSNYDPQPFWNAGCQMVALNWQTPDLGMQLNEAMFADNGRCGYVLKP 113
Query: 65 AFM 67
F+
Sbjct: 114 EFL 116
>gnl|CDD|128454 smart00149, PLCYc, Phospholipase C, catalytic domain (part); domain
Y. Phosphoinositide-specific phospholipases C. These
enzymes contain 2 regions (X and Y) which together form
a TIM barrel-like structure containing the active site
residues. Phospholipase C enzymes (PI-PLC) act as signal
transducers that generate two second messengers,
inositol-1,4,5-trisphosphate and diacylglycerol. The
bacterial enzyme appears to be a homologue of the
mammalian PLCs.
Length = 115
Score = 121 bits (305), Expect = 1e-37
Identities = 44/63 (69%), Positives = 50/63 (79%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRP 64
Q SRVYPKG R+DSSNYNP WN G QM+ALNFQTPDK MQ+N FR NGGCGY+L+P
Sbjct: 53 QLSRVYPKGTRVDSSNYNPQVFWNHGCQMVALNFQTPDKPMQLNQGMFRANGGCGYVLKP 112
Query: 65 AFM 67
F+
Sbjct: 113 DFL 115
>gnl|CDD|176534 cd08592, PI-PLCc_gamma, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-gamma. This
family corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-gamma isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-gamma represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C2 domain.The PLC
catalytic core domain is a TIM barrel with two highly
conserved regions (X and Y) split by a highly degenerate
linker sequence. Unique to PI-PLC-gamma, a second PH
domain, two SH2 (Src homology 2) regions, and one SH3
(Src homology 3) region is present within this linker
region. There are two PI-PLC-gamma isozymes (1-2). They
are activated by receptor and non-receptor tyrosine
kinases due to the presence of two SH2 and a single SH3
domain within the linker region. Aside from the two
PI-PLC-gamma isozymes identified in mammals, some
eukaryotic PI-PLC-gamma homologs have been classified
with this subfamily.
Length = 229
Score = 110 bits (277), Expect = 5e-32
Identities = 39/51 (76%), Positives = 45/51 (88%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SRVYPKGQR+DSSNY+PVP+WN GSQM+ALNFQTPDK MQ+N A F +N
Sbjct: 179 QLSRVYPKGQRVDSSNYDPVPMWNCGSQMVALNFQTPDKPMQLNQALFMLN 229
>gnl|CDD|176501 cd08558, PI-PLCc_eukaryota, Catalytic domain of eukaryotic
phosphoinositide-specific phospholipase C and similar
proteins. This family corresponds to the catalytic
domain present in eukaryotic phosphoinositide-specific
phospholipase C (PI-PLC, EC 3.1.4.11) and similar
proteins. The higher eukaryotic PI-PLCs play a critical
role in most signal transduction pathways, controlling
numerous cellular events such as cell growth,
proliferation, excitation and secretion. They strictly
require Ca2+ for the catalytic activity. They display a
clear preference towards the hydrolysis of the more
highly phosphorylated membrane phospholipids
PI-analogues, phosphatidylinositol 4,5-bisphosphate
(PIP2) and phosphatidylinositol-4-phosphate (PIP), to
generate two important second messengers in eukaryotic
signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. The
eukaryotic PI-PLCs have a multidomain organization that
consists of a PLC catalytic core domain, and various
regulatory domains, such as the pleckstrin homology (PH)
domain, EF-hand motif, and C2 domain. The catalytic core
domain is a TIM barrel with two highly conserved regions
(X and Y) split by a linker region. The catalytic
mechanism of eukaryotic PI-PLCs is based on general base
and acid catalysis utilizing two well conserved
histidines and consists of two steps, a phosphotransfer
and a phosphodiesterase reaction. The mammalian PI-PLCs
consist of 13 isozymes, which are classified into
six-subfamilies, PI-PLC-delta (1,3 and 4), -beta(1-4),
-gamma(1,2), -epsilon, -zeta, and -eta (1,2). Ca2+ is
required for the activation of all forms of mammalian
PI-PLCs, and the concentration of calcium influences
substrate specificity. This family also includes
metazoan phospholipase C related but catalytically
inactive proteins (PRIP), which belong to a group of
novel inositol trisphosphate binding proteins. Due to
the replacement of critical catalytic residues, PRIP
does not have PLC enzymatic activity.
Length = 226
Score = 109 bits (275), Expect = 1e-31
Identities = 35/51 (68%), Positives = 39/51 (76%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SRVYPKG R+DSSNYNP P WN G QM+ALN+QTPD MQ+N KF N
Sbjct: 176 QLSRVYPKGTRVDSSNYNPQPFWNAGCQMVALNYQTPDLPMQLNQGKFEQN 226
>gnl|CDD|176535 cd08593, PI-PLCc_delta, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-delta. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-delta isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-delta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C-terminal C2 domain.
This CD corresponds to the catalytic domain which is a
TIM barrel with two highly conserved regions (X and Y)
split by a highly degenerate linker sequence. There are
three PI-PLC-delta isozymes (1,3 and 4). PI-PLC-delta1
is relatively well characterized. It is activated by
high calcium levels generated by other PI-PLC family
members, and therefore functions as a calcium amplifier
within the cell. Different PI-PLC-delta isozymes have
different tissue distribution and different subcellular
locations. PI-PLC-delta1 is mostly a cytoplasmic
protein, PI-PLC-delta3 is located in the membrane, and
PI-PLC-delta4 is predominantly detected in the cell
nucleus. Aside from three PI-PLC-delta isozymes
identified in mammals, some eukaryotic PI-PLC-delta
homologs have been classified to this CD.
Length = 257
Score = 95.5 bits (238), Expect = 6e-26
Identities = 30/51 (58%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YP G R DSSNY+P +WNVG Q++ALNFQTP + M +N FR N
Sbjct: 207 QLSRIYPAGLRTDSSNYDPQEMWNVGCQIVALNFQTPGEEMDLNDGLFRQN 257
>gnl|CDD|176533 cd08591, PI-PLCc_beta, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-beta. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-beta isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-beta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal coiled-coil (CT) domain necessary for
homodimerization. The PLC catalytic core domain is a TIM
barrel with two highly conserved regions (X and Y) split
by a highly degenerate linker sequence. There are four
PLC-beta isozymes (1-4). They are activated by the
heterotrimeric G protein alpha q subunits through their
C2 domain and long C-terminal extension. The beta-gamma
subunits of heterotrimeric G proteins are known to
activate the PLC-beta2 and -beta3 isozymes only. Aside
from four PLC-beta isozymes identified in mammals, some
eukaryotic PLC-beta homologs have been classified into
this subfamily, such as NorpA and PLC-21 from Drosophila
and PLC-beta from turkey, Xenopus, sponge, and hydra.
Length = 257
Score = 90.9 bits (226), Expect = 3e-24
Identities = 33/51 (64%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YPKG R+DSSNY P WN G QM+ALNFQTPD MQ+N KF N
Sbjct: 207 QLSRIYPKGTRVDSSNYMPQIFWNAGCQMVALNFQTPDLPMQLNQGKFEYN 257
>gnl|CDD|176565 cd08628, PI-PLCc_gamma2, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-gamma2. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-gamma isozyme 2. PI-PLC is a
signaling enzyme that hydrolyze the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-gamma represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C2 domain. The PLC
catalytic core domain is a TIM barrel with two highly
conserved regions (X and Y) split by a highly degenerate
linker sequence. Unique to PI-PLC-gamma2, a second PH
domain, two SH2 (Src homology 2) regions, and one SH3
(Src homology 3) region is present within this linker
region. PI-PLC-gamma2 is highly expressed in cells of
hematopoietic origin. It is activated by receptor and
non-receptor tyrosine kinases due to the presence of two
SH2 and a single SH3 domain within the linker region.
Unlike PI-PLC-gamma1, the activation of PI-PLC-gamma2
may require concurrent stimulation of PI 3-kinase.
Length = 254
Score = 87.4 bits (216), Expect = 6e-23
Identities = 35/50 (70%), Positives = 41/50 (82%)
Query: 6 FSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
+RVYPKGQR+DSSNY+P LW GSQM+ALNFQT DK MQ+NHA F +N
Sbjct: 205 LTRVYPKGQRVDSSNYDPFRLWLCGSQMVALNFQTADKYMQLNHALFSLN 254
>gnl|CDD|176563 cd08626, PI-PLCc_beta4, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-beta4. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-beta isozyme 4. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-beta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal coiled-coil (CT) domain necessary for
homodimerization. The PLC catalytic core domain is a TIM
barrel with two highly conserved regions (X and Y) split
by a highly degenerate linker sequence. PI-PLC-beta4 is
expressed in high concentrations in cerebellar Purkinje
and granule cells, the median geniculate body, and the
lateral geniculate nucleus. It is activated by the
heterotrimeric G protein alpha q subunits through their
C2 domain and long C-terminal extension.
Length = 257
Score = 84.0 bits (208), Expect = 1e-21
Identities = 32/51 (62%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YPKG R+DSSNY P WN G QM++LNFQTPD MQ+N KF N
Sbjct: 207 QMSRIYPKGTRVDSSNYMPQIFWNAGCQMVSLNFQTPDLGMQLNQGKFEYN 257
>gnl|CDD|176564 cd08627, PI-PLCc_gamma1, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-gamma1. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-gamma isozyme 1. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-gamma represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C2 domain. The PLC
catalytic core domain is a TIM barrel with two highly
conserved regions (X and Y) split by a highly degenerate
linker sequence. Unique to PI-PLC-gamma1, a second PH
domain, two SH2 (Src homology 2) regions, and one SH3
(Src homology 3) region is present within this linker
region. PI-PLC-gamma1 is ubiquitously expressed. It is
activated by receptor and non-receptor tyrosine kinases
due to the presence of two SH2 and a single SH3 domain
within the linker region.
Length = 229
Score = 83.5 bits (206), Expect = 1e-21
Identities = 34/51 (66%), Positives = 43/51 (84%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YPKGQR+DSSNY+P+P+W GSQ++ALNFQTPDK MQ+N A F +
Sbjct: 179 QLSRIYPKGQRLDSSNYDPLPMWICGSQLVALNFQTPDKPMQMNQALFMLG 229
>gnl|CDD|176536 cd08594, PI-PLCc_eta, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-eta. This
family corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-eta isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-eta represents a
class of neuron-speific PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal tail that terminates with a PDZ-binding
motif, a potential interaction site for other signaling
proteins. The PLC catalytic core domain is a TIM barrel
with two highly conserved regions (X and Y) split by a
highly degenerate linker sequence. There are two
PI-PLC-eta isozymes (1-2), both neuron-specific enzymes.
They function as calcium sensors that are activated by
small increases in intracellular calcium concentrations.
The PI-PLC-eta isozymes are also activated through GPCR
stimulation. Aside from the PI-PLC-eta isozymes
identified in mammals, their eukaryotic homologs are
also present in this family.
Length = 227
Score = 82.5 bits (204), Expect = 3e-21
Identities = 30/51 (58%), Positives = 38/51 (74%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YP RIDSSN+NP P WN G Q++ALN+QT + +Q+N AKFR N
Sbjct: 177 QLSRIYPSAYRIDSSNFNPQPYWNAGCQLVALNYQTEGRMLQLNRAKFRAN 227
>gnl|CDD|176540 cd08598, PI-PLC1c_yeast, Catalytic domain of putative yeast
phosphatidylinositide-specific phospholipases C. This
family corresponds to the catalytic domain present in a
group of putative phosphoinositide-specific
phospholipase C (PI-PLC, EC 3.1.4.11) encoded by PLC1
genes from yeasts, which are homologs of the delta
isoforms of mammalian PI-PLC in terms of overall
sequence similarity and domain organization. Mammalian
PI-PLC is a signaling enzyme that hydrolyzes the
membrane phospholipids
phosphatidylinositol-4,5-bisphosphate (PIP2) to
generate two important second messengers in eukaryotic
signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. The prototype of this CD
is protein Plc1p encoded by PLC1 genes from
Saccharomyces cerevisiae. Plc1p contains both highly
conserved X- and Y- regions of PLC catalytic core
domain, as well as a presumptive EF-hand like calcium
binding motif. Experiments show that Plc1p displays
calcium dependent catalytic properties with high
similarity to those of the mammalian PLCs, and plays
multiple roles in modulating the membrane/protein
interactions in filamentation control. CaPlc1p encoded
by CAPLC1 from the closely related yeast Candida
albicans, an orthologue of S. cerevisiae Plc1p, is also
included in this group. Like Plc1p, CaPlc1p has
conserved presumptive catalytic domain, shows PLC
activity when expressed in E. coli, and is involved in
multiple cellular processes. There are two other gene
copies of CAPLC1 in C. albicans, CAPLC2 (also named as
PIPLC) and CAPLC3. Experiments show CaPlc1p is the only
enzyme in C. albicans which functions as PLC. The
biological functions of CAPLC2 and CAPLC3 gene products
must be clearly different from CaPlc1p, but their exact
roles remain unclear. Moreover, CAPLC2 and CAPLC3 gene
products are more similar to extracellular bacterial
PI-PLC than to the eukaryotic PI-PLC, and they are not
included in this subfamily.
Length = 231
Score = 80.0 bits (198), Expect = 3e-20
Identities = 28/47 (59%), Positives = 33/47 (70%)
Query: 6 FSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKF 52
RVYP G RI SSN+NP+P W G QM+ALN+QT D MQ+N A F
Sbjct: 182 LMRVYPSGTRISSSNFNPLPFWRAGVQMVALNWQTYDLGMQLNEAMF 228
>gnl|CDD|178538 PLN02952, PLN02952, phosphoinositide phospholipase C.
Length = 599
Score = 80.4 bits (198), Expect = 2e-19
Identities = 37/89 (41%), Positives = 53/89 (59%), Gaps = 7/89 (7%)
Query: 1 MKLVQFS-----RVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
+V+F+ R+YPKG RI SSNY P+ W G+QM+A N Q K++ + H FR N
Sbjct: 379 QDVVRFTQRNILRIYPKGTRITSSNYKPLIGWMHGAQMIAFNMQGYGKSLWLMHGMFRAN 438
Query: 56 GGCGYLLRPAFMFSESYDP--YDPENSYP 82
GGCGYL +P F+ + + +DP+ P
Sbjct: 439 GGCGYLKKPDFLMKKGFHDEVFDPKKKLP 467
>gnl|CDD|176569 cd08632, PI-PLCc_eta1, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-eta1. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-eta isozyme 1. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-eta represents a
class of neuron-speific PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal tail that terminates with a PDZ-binding
motif, a potential interaction site for other signaling
proteins. The PLC catalytic core domain is a TIM barrel
with two highly conserved regions (X and Y) split by a
highly degenerate linker sequence. PI-PLC-eta1 is a
neuron-specific enzyme and expressed in only nerve
tissues such as the brain and spinal cord. It may
perform a fundamental role in the brain.
Length = 253
Score = 77.8 bits (191), Expect = 3e-19
Identities = 29/51 (56%), Positives = 40/51 (78%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q +R+YP RIDSSN+NP+P WNVG Q++ALN+Q+ + MQ+N AKF +N
Sbjct: 203 QLTRIYPSAYRIDSSNFNPLPYWNVGCQLVALNYQSEGRMMQLNRAKFMVN 253
>gnl|CDD|177868 PLN02222, PLN02222, phosphoinositide phospholipase C 2.
Length = 581
Score = 78.1 bits (192), Expect = 9e-19
Identities = 32/77 (41%), Positives = 48/77 (62%), Gaps = 2/77 (2%)
Query: 8 RVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRPAFM 67
R+YPKG R+ SSNYNP+ W+ G+QM+A N Q +++ + FR NGGCGY+ +P +
Sbjct: 373 RIYPKGTRVTSSNYNPLVGWSHGAQMVAFNMQGYGRSLWLMQGMFRANGGCGYIKKPDLL 432
Query: 68 FSESYDP--YDPENSYP 82
D +DP+ + P
Sbjct: 433 LKSGSDSDIFDPKATLP 449
>gnl|CDD|176566 cd08629, PI-PLCc_delta1, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-delta1. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-delta1 isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-delta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C-terminal C2 domain.
This subfamily corresponds to the catalytic domain which
is a TIM barrel with two highly conserved regions (X and
Y) split by a highly degenerate linker sequence. There
are three PI-PLC-delta isozymes (1,3 and 4).
PI-PLC-delta1 is relatively well characterized. It is
activated by high calcium levels generated by other
PI-PLC family members, and therefore functions as a
calcium amplifier within the cell. Unlike PI-PLC-delta
4, PI-PLC-delta1 and 3 possess a putative nuclear export
sequence (NES) located in the EF-hand domain, which may
be responsible transporting PI-PLC-delta1and 3 from the
cell nucleus. Experiments show PI-PLC-delta1 is
essential for normal hair formation.
Length = 258
Score = 75.5 bits (185), Expect = 3e-18
Identities = 28/51 (54%), Positives = 34/51 (66%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
SR+YP G R DSSNY+PV +WN G Q++ALNFQTP M V F+ N
Sbjct: 208 CLSRIYPAGWRTDSSNYSPVEMWNGGCQIVALNFQTPGPEMDVYLGCFQDN 258
>gnl|CDD|176539 cd08597, PI-PLCc_PRIP_metazoa, Catalytic domain of metazoan
phospholipase C related, but catalytically inactive
protein. This family corresponds to the catalytic
domain present in metazoan phospholipase C related, but
catalytically inactive proteins (PRIP), which belong to
a group of novel Inositol 1,4,5-trisphosphate (InsP3)
binding protein. PRIP has a primary structure and domain
architecture, incorporating a pleckstrin homology (PH)
domain, an array of EF hands, a PLC catalytic core
domain with highly conserved X- and Y-regions split by a
linker sequence, and a C-terminal C2 domain, similar to
phosphoinositide-specific phospholipases C (PI-PLC, EC
3.1.4.11)-delta isoforms. Due to replacement of critical
catalytic residues, PRIP do not have PLC enzymatic
activity. PRIP consists of two subfamilies,
PRIP-1(previously known as p130 or PLC-1), which is
predominantly expressed in the brain, and PRIP-2
(previously known as PLC-2), which exhibits a relatively
ubiquitous expression. Experiments show both, PRIP-1 and
PRIP-2, are involved in InsP3-mediated calcium signaling
pathway and GABA(A)receptor-mediated signaling pathway.
In addition, PRIP-2 acts as a negative regulator of
B-cell receptor signaling and immune responses.
Length = 260
Score = 75.2 bits (185), Expect = 3e-18
Identities = 27/49 (55%), Positives = 33/49 (67%)
Query: 7 SRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
SRVYP R+DSSNYNP WN G Q++A+N+QTP M +N KF N
Sbjct: 212 SRVYPSPMRVDSSNYNPQDFWNCGCQIVAMNYQTPGLMMDLNTGKFLEN 260
>gnl|CDD|176568 cd08631, PI-PLCc_delta4, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-delta4. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-delta4 isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-delta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C-terminal C2 domain.
This CD corresponds to the catalytic domain which is a
TIM barrel with two highly conserved regions (X and Y)
split by a highly degenerate linker sequence. There are
three PI-PLC-delta isozymes (1,3 and 4). Unlike
PI-PLC-delta 1 and 3, a putative nuclear export sequence
(NES) located in the EF-hand domain, which may be
responsible transporting PI-PLC-delta1 and 3 from the
cell nucleus, is not present in PI-PLC-delta4.
Experiments show PI-PLC-delta4 is required for the
acrosome reaction in fertilization.
Length = 258
Score = 73.4 bits (180), Expect = 2e-17
Identities = 31/51 (60%), Positives = 34/51 (66%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SRVYP G R DSSNYNP +WN G QM+ALNFQT M +N FR N
Sbjct: 208 QLSRVYPSGLRTDSSNYNPQEMWNAGCQMVALNFQTAGLEMDLNDGLFRQN 258
>gnl|CDD|176541 cd08599, PI-PLCc_plant, Catalytic domain of plant
phosphatidylinositide-specific phospholipases C. This
family corresponds to the catalytic domain present in a
group of phosphoinositide-specific phospholipases C
(PI-PLC, EC 3.1.4.11) encoded by PLC genes from higher
plants, which are homologs of mammalian PI-PLC in terms
of overall sequence similarity and domain organization.
Mammalian PI-PLC is a signaling enzyme that hydrolyzes
the membrane phospholipids
phosphatidylinositol-4,5-bisphosphate (PIP2) to
generate two important second messengers in eukaryotic
signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. The domain arrangement of
plant PI-PLCs is structurally similar to the mammalian
PLC-zeta isoform, which lacks the N-terminal pleckstrin
homology (PH) domain, but contains EF-hand like motifs
(which are absent in a few plant PLCs), a PLC catalytic
core domain with X- and Y- highly conserved regions
split by a linker sequence, and a C2 domain. However, at
the sequence level, the plant PI-PLCs are closely
related to the mammalian PLC-delta isoform. Experiments
show that plant PLCs display calcium dependent PLC
catalytic properties, although they lack some of the
N-terminal motifs found in their mammalian counterparts.
A putative calcium binding site may be located at the
region spanning the X- and Y- domains.
Length = 228
Score = 72.8 bits (179), Expect = 2e-17
Identities = 26/50 (52%), Positives = 33/50 (66%)
Query: 6 FSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
RVYP G RI SSNY+P+ W G+QM+ALN Q D+ + +N KFR N
Sbjct: 179 LLRVYPAGLRITSSNYDPMLAWMHGAQMVALNMQGYDRPLWLNRGKFRAN 228
>gnl|CDD|176561 cd08624, PI-PLCc_beta2, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-beta2. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-beta isozyme 2. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-beta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal coiled-coil (CT) domain necessary for
homodimerization. The PLC catalytic core domain is a TIM
barrel with two highly conserved regions (X and Y) split
by a highly degenerate linker sequence. PI-PLC-beta2 is
expressed at highest levels in cells of hematopoietic
origin. It is activated by the heterotrimeric G protein
alpha q subunits through their C2 domain and long
C-terminal extension. It is also activated by the
beta-gamma subunits of heterotrimeric G proteins.
Length = 261
Score = 73.2 bits (179), Expect = 2e-17
Identities = 33/51 (64%), Positives = 36/51 (70%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YPKG R+DSSNY P WNVG QM+ALNFQT D MQ N A F N
Sbjct: 211 QMSRIYPKGTRMDSSNYMPQMFWNVGCQMVALNFQTMDLPMQQNMALFEFN 261
>gnl|CDD|176570 cd08633, PI-PLCc_eta2, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-eta2. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-eta isozyme 2. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-eta represents a
class of neuron-speific PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal tail that terminates with a PDZ-binding
motif, a potential interaction site for other signaling
proteins. The PLC catalytic core domain is a TIM barrel
with two highly conserved regions (X and Y) split by a
highly degenerate linker sequence. PI-PLC-eta2 is a
neuron-specific enzyme and expressed in the brain. It
may in part function downstream of G-protein-coupled
receptors and play an important role in the formation
and maintenance of the neuronal network in the postnatal
brain.
Length = 254
Score = 72.4 bits (177), Expect = 3e-17
Identities = 29/51 (56%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YP R+DSSNYNP P WN G QM+ALN+Q+ + +Q+N AKF N
Sbjct: 204 QLSRIYPSSYRVDSSNYNPQPFWNAGCQMVALNYQSEGRMLQLNRAKFSAN 254
>gnl|CDD|177873 PLN02228, PLN02228, Phosphoinositide phospholipase C.
Length = 567
Score = 73.5 bits (180), Expect = 4e-17
Identities = 36/85 (42%), Positives = 50/85 (58%), Gaps = 6/85 (7%)
Query: 3 LVQFS-----RVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGG 57
LV+F+ R+YPKG R+DSSNY+P W G+QM+A N Q K + + FR NGG
Sbjct: 345 LVRFTQRNLVRIYPKGTRVDSSNYDPHVGWTHGAQMVAFNMQGHGKQLWIMQGMFRANGG 404
Query: 58 CGYLLRPAFMFSESYDPYDPENSYP 82
CGY+ +P + E + +DP P
Sbjct: 405 CGYVKKPRILLDE-HTLFDPCKRLP 428
>gnl|CDD|176537 cd08595, PI-PLCc_zeta, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-zeta. This
family corresponds to the catalytic domain presenting in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-zeta isozyme. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-zeta represents a
class of sperm-specific PI-PLC that has an N-terminal
EF-hand domain, a PLC catalytic core domain, and a
C-terminal C2 domain. The PLC catalytic core domain is a
TIM barrel with two highly conserved regions (X and Y)
split by a highly degenerate linker sequence. There is
one PLC-zeta isozyme (1). PLC-zeta plays a fundamental
role in vertebrate fertilization by initiating
intracellular calcium oscillations that trigger the
embryo development. However, the mechanism of its
activation still remains unclear. Aside from PI-PLC-zeta
identified in mammals, its eukaryotic homologs have been
classified with this family.
Length = 257
Score = 71.9 bits (176), Expect = 5e-17
Identities = 28/49 (57%), Positives = 33/49 (67%)
Query: 7 SRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
+R+YPKG R SSNYNP WNVG QM+ALNFQT M + + KF N
Sbjct: 209 TRIYPKGTRASSSNYNPQEFWNVGCQMVALNFQTLGAPMDLQNGKFLDN 257
>gnl|CDD|176560 cd08623, PI-PLCc_beta1, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-beta1. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-beta isozyme 1. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-beta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal coiled-coil (CT) domain necessary for
homodimerization. The PLC catalytic core domain is a TIM
barrel with two highly conserved regions (X and Y) split
by a highly degenerate linker sequence. PI-PLC-beta1 is
expressed at highest levels in specific regions of the
brain. It is activated by the heterotrimeric G protein
alpha q subunits through their C2 domain and long
C-terminal extension.
Length = 258
Score = 71.7 bits (175), Expect = 7e-17
Identities = 30/52 (57%), Positives = 37/52 (71%)
Query: 4 VQFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
+Q SR+YPKG R+DSSNY P WN G QM+ALNFQT D +MQ+N + N
Sbjct: 207 MQLSRIYPKGTRVDSSNYMPQLFWNAGCQMVALNFQTVDLSMQINMGMYEYN 258
>gnl|CDD|176562 cd08625, PI-PLCc_beta3, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-beta3. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-beta isozyme 3. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which goes on to phosphorylate other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-beta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, a C2 domain, and a unique
C-terminal coiled-coil (CT) domain necessary for
homodimerization. The PLC catalytic core domain is a TIM
barrel with two highly conserved regions (X and Y) split
by a highly degenerate linker sequence. PI-PLC-beta3 is
widely expressed at highest levels in brain, liver, and
parotid gland. It is activated by the heterotrimeric G
protein alpha q subunits through their C2 domain and
long C-terminal extension. It is also activated by the
beta-gamma subunits of heterotrimeric G proteins.
Length = 258
Score = 71.2 bits (174), Expect = 9e-17
Identities = 33/51 (64%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q SR+YPKG R+DSSNY P WNVG QM+ALNFQT D AMQ+N F N
Sbjct: 208 QLSRIYPKGTRVDSSNYMPQLFWNVGCQMVALNFQTLDLAMQLNMGVFEYN 258
>gnl|CDD|177875 PLN02230, PLN02230, phosphoinositide phospholipase C 4.
Length = 598
Score = 70.9 bits (173), Expect = 3e-16
Identities = 35/80 (43%), Positives = 46/80 (57%), Gaps = 3/80 (3%)
Query: 6 FSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRPA 65
F R+YPKG R +SSNY P W G+QM+A N Q +A+ + FR NGGCGY+ +P
Sbjct: 388 FLRIYPKGTRFNSSNYKPQIGWMSGAQMIAFNMQGYGRALWLMEGMFRANGGCGYVKKPD 447
Query: 66 FMF---SESYDPYDPENSYP 82
F+ D Y +NS P
Sbjct: 448 FLMDAGPNGQDFYPKDNSCP 467
>gnl|CDD|176538 cd08596, PI-PLCc_epsilon, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-epsilon. This
family corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-epsilon isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PI-PLC-epsilon represents
a class of mammalian PI-PLC that has an N-terminal CDC25
homology domain with a guanyl-nucleotide exchange factor
(GFF) activity, a pleckstrin homology (PH) domain, an
array of EF hands, a PLC catalytic core domain, a C2
domain, and two predicted RA (Ras association) domains
that are implicated in the binding of small GTPases,
such as Ras or Rap, from the Ras family. The PLC
catalytic core domain is a TIM barrel with two highly
conserved regions (X and Y) split by a highly degenerate
linker sequence. There is one PI-PLC-epsilon isozyme
(1). PI-PLC-epsilon is activated by G alpha(12/13), G
beta gamma, and activated members of Ras and Rho small
GTPases. Aside from PI-PLC-epsilon identified in
mammals, its eukaryotic homologs have been classified
with this family.
Length = 254
Score = 69.1 bits (169), Expect = 5e-16
Identities = 26/51 (50%), Positives = 31/51 (60%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q R YP RIDSSN NP+ W G Q++ALN+QT D M +N A F N
Sbjct: 204 QLLRTYPAATRIDSSNPNPLIFWLHGLQLVALNYQTDDLPMHLNAAMFEAN 254
>gnl|CDD|176567 cd08630, PI-PLCc_delta3, Catalytic domain of metazoan
phosphoinositide-specific phospholipase C-delta3. This
subfamily corresponds to the catalytic domain present in
metazoan phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11)-delta3 isozymes. PI-PLC is a
signaling enzyme that hydrolyzes the membrane
phospholipids phosphatidylinositol-4,5-bisphosphate
(PIP2) to generate two important second messengers in
eukaryotic signal transduction cascades, Inositol
1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG).
InsP3 triggers inflow of calcium from intracellular
stores, while DAG, together with calcium, activates
protein kinase C, which then phosphorylates other
molecules, leading to altered cellular activity. Calcium
is required for the catalysis. PLC-delta represents a
class of mammalian PI-PLC that has an N-terminal
pleckstrin homology (PH) domain, an array of EF hands, a
PLC catalytic core domain, and a C-terminal C2 domain.
This family corresponds to the catalytic domain which is
a TIM barrel with two highly conserved regions (X and Y)
split by a highly degenerate linker sequence. There are
three PI-PLC-delta isozymes (1,3 and 4). Unlike
PI-PLC-delta 4, PI-PLC-delta1 and 3 possess a putative
nuclear export sequence (NES) located in the EF-hand
domain, which may be responsible transporting
PI-PLC-delta1 and 3 from the cell nucleus.
Length = 258
Score = 68.5 bits (167), Expect = 1e-15
Identities = 26/51 (50%), Positives = 37/51 (72%)
Query: 5 QFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMN 55
Q +RVYP G R++S+NY+P +WN G Q++ALNFQTP M +N +F +N
Sbjct: 208 QLTRVYPLGLRMNSANYSPQEMWNSGCQLVALNFQTPGYEMDLNAGRFLVN 258
>gnl|CDD|165867 PLN02223, PLN02223, phosphoinositide phospholipase C.
Length = 537
Score = 45.0 bits (106), Expect = 5e-07
Identities = 21/66 (31%), Positives = 37/66 (56%), Gaps = 1/66 (1%)
Query: 5 QFSRVYPKGQRIDS-SNYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLR 63
+F R PK + + + Y P W G+Q++AL+ + + + + FR NGGCGY+ +
Sbjct: 327 KFLRTRPKKKNLLINAPYKPQRAWMHGAQLIALSRKDDKEKLWLMQGMFRANGGCGYVKK 386
Query: 64 PAFMFS 69
P F+ +
Sbjct: 387 PDFLLN 392
>gnl|CDD|176497 cd00137, PI-PLCc, Catalytic domain of prokaryotic and eukaryotic
phosphoinositide-specific phospholipase C. This
subfamily corresponds to the catalytic domain present in
prokaryotic and eukaryotic phosphoinositide-specific
phospholipase C (PI-PLC), which is a ubiquitous enzyme
catalyzing the cleavage of the sn3-phosphodiester bond
in the membrane phosphoinositides (phosphatidylinositol,
PI; Phosphatidylinositol-4-phosphate, PIP;
phosphatidylinositol 4,5-bisphosphate, PIP2) to yield
inositol phosphates (inositol monosphosphate, InsP;
inositol diphosphate, InsP2; inositol trisphosphate,
InsP3) and diacylglycerol (DAG). The higher eukaryotic
PI-PLCs (EC 3.1.4.11) have a multidomain organization
that consists of a PLC catalytic core domain, and
various regulatory domains. They play a critical role in
most signal transduction pathways, controlling numerous
cellular events, such as cell growth, proliferation,
excitation and secretion. These PI-PLCs strictly require
Ca2+ for their catalytic activity. They display a clear
preference towards the hydrolysis of the more highly
phosphorylated PI-analogues, PIP2 and PIP, to generate
two important second messengers, InsP3 and DAG. InsP3
triggers inflow of calcium from intracellular stores,
while DAG, together with calcium, activates protein
kinase C, which then phosphorylates other molecules,
leading to altered cellular activity. In contrast,
bacterial PI-PLCs contain a single catalytic domain.
Although their precise physiological function remains
unclear, bacterial PI-PLCs may function as virulence
factors in some pathogenic bacteria. They participate in
Ca2+-independent PI metabolism. They are characterized
as phosphatidylinositol-specific phospholipase C (EC
4.6.1.13) that selectively hydrolyze PI, not PIP or
PIP2. The TIM-barrel type catalytic domain in bacterial
PI-PLCs is very similar to the one in eukaryotic
PI-PLCs, in which the catalytic domain is assembled from
two highly conserved X- and Y-regions split by a
divergent linker sequence. The catalytic mechanism of
both prokaryotic and eukaryotic PI-PLCs is based on
general base and acid catalysis utilizing two well
conserved histidines, and consists of two steps, a
phosphotransfer and a phosphodiesterase reaction. This
superfamily also includes a distinctly different type of
eukaryotic PLC, glycosylphosphatidylinositol-specific
phospholipase C (GPI-PLC), an integral membrane protein
characterized in the protozoan parasite Trypanosoma
brucei. T. brucei GPI-PLC hydrolyzes the GPI-anchor on
the variant specific glycoprotein (VSG), releasing
dimyristyl glycerol (DMG), which may facilitate the
evasion of the protozoan to the host#s immune system. It
does not require Ca2+ for its activity and is more
closely related to bacterial PI-PLCs, but not mammalian
PI-PLCs.
Length = 274
Score = 43.8 bits (103), Expect = 1e-06
Identities = 23/63 (36%), Positives = 27/63 (42%), Gaps = 12/63 (19%)
Query: 5 QFSRVYPKGQRI---------DSSNYNPVPLWN---VGSQMLALNFQTPDKAMQVNHAKF 52
Q SR YP G DS+NY P WN G ++ L+FQT D MQ A
Sbjct: 212 QLSRNYPSGTSGGTAWYYYAMDSNNYMPQMFWNANPAGCGIVILDFQTMDLPMQQYMAVI 271
Query: 53 RMN 55
N
Sbjct: 272 EFN 274
>gnl|CDD|225851 COG3314, COG3314, Uncharacterized protein conserved in bacteria
[Function unknown].
Length = 427
Score = 34.6 bits (80), Expect = 0.002
Identities = 19/75 (25%), Positives = 24/75 (32%), Gaps = 3/75 (4%)
Query: 3 LVQFSRVYPKGQRIDSSNYNPVPLWNVGSQMLALN---FQTPDKAMQVNHAKFRMNGGCG 59
L + P S + L G M + FQ P ++ A F NG G
Sbjct: 116 LAPLLTIVPFAGLFLSFLNSYGLLEFFGVLMEPIMRPIFQLPGRSAIDALASFLGNGSLG 175
Query: 60 YLLRPAFMFSESYDP 74
LL F Y P
Sbjct: 176 LLLTDGFYEEGKYTP 190
>gnl|CDD|111019 pfam02077, SURF4, SURF4 family.
Length = 267
Score = 27.4 bits (61), Expect = 0.64
Identities = 11/31 (35%), Positives = 14/31 (45%), Gaps = 5/31 (16%)
Query: 38 FQTPDKAMQVNHAKFRMNGGCGYLLRPAFMF 68
FQ D QVN+ + GCGY F+
Sbjct: 43 FQWSD---QVNY--MDYSWGCGYFFATVFVI 68
>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 = 26.9 bits (60), Expect = 1.1
Identities = 13/51 (25%), Positives = 20/51 (39%), Gaps = 4/51 (7%)
Query: 20 NYNPVPLWNVGSQMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRPAFMFSE 70
Y VPL G +++Q A+ N + GY RP+ +E
Sbjct: 131 GYREVPLLENGK----VDWQAVKTAITPNTKLIGIQRSKGYAWRPSLTIAE 177
>gnl|CDD|173895 cd00517, ATPS, ATP-sulfurylase. ATP-sulfurylase (ATPS), also known
as sulfate adenylate transferase, catalyzes the transfer
of an adenylyl group from ATP to sulfate, forming
adenosine 5'-phosphosulfate (APS). This reaction is
generally accompanied by a further reaction, catalyzed
by APS kinase, in which APS is phosphorylated to yield
3'-phospho-APS (PAPS). In some organisms the APS kinase
is a separate protein, while in others it is
incorporated with ATP sulfurylase in a bifunctional
enzyme that catalyzes both reactions. In bifunctional
proteins, the domain that performs the kinase activity
can be attached at the N-terminal end of the sulfurylase
unit or at the C-terminal end, depending on the
organism. While the reaction is ubiquitous among
organisms, the physiological role of the reaction
varies. In some organisms it is used to generate APS
from sulfate and ATP, while in others it proceeds in the
opposite direction to generate ATP from APS and
pyrophosphate. ATP sulfurylase can be a monomer, a
homodimer, or a homo-oligomer, depending on the
organism. ATPS belongs to a large superfamily of
nucleotidyltransferases that includes pantothenate
synthetase (PanC), phosphopantetheine
adenylyltransferase (PPAT), and the amino-acyl tRNA
synthetases. The enzymes of this family are structurally
similar and share a dinucleotide-binding domain.
Length = 353
Score = 26.4 bits (59), Expect = 1.5
Identities = 11/36 (30%), Positives = 16/36 (44%), Gaps = 5/36 (13%)
Query: 49 HAKFRMNGGCGYLL--R-PAFM--FSESYDPYDPEN 79
HA R N G + + R A + + Y PYD +
Sbjct: 244 HAIIRKNYGATHFIVGRDHAGVGHPGDYYGPYDAQE 279
>gnl|CDD|215396 PLN02743, PLN02743, nicotinamidase.
Length = 239
Score = 25.9 bits (57), Expect = 2.6
Identities = 8/19 (42%), Positives = 11/19 (57%)
Query: 64 PAFMFSESYDPYDPENSYP 82
P F +S+ P PE+ YP
Sbjct: 76 PVLAFLDSHHPDKPEHPYP 94
>gnl|CDD|173845 cd01156, IVD, Isovaleryl-CoA dehydrogenase. Isovaleryl-CoA
dehydrogenase (IVD) is an is an acyl-CoA dehydrogenase,
which catalyzes the third step in leucine catabolism,
the conversion of isovaleryl-CoA (3-methylbutyryl-CoA)
into 3-methylcrotonyl-CoA. IVD is a homotetramer and
has the greatest affinity for small branched chain
substrates.
Length = 376
Score = 25.4 bits (56), Expect = 3.9
Identities = 7/17 (41%), Positives = 8/17 (47%)
Query: 11 PKGQRIDSSNYNPVPLW 27
P +ID N P LW
Sbjct: 23 PLAAKIDRDNEFPRDLW 39
>gnl|CDD|176498 cd08555, PI-PLCc_GDPD_SF, Catalytic domain of
phosphoinositide-specific phospholipase C-like
phosphodiesterases superfamily. The PI-PLC-like
phosphodiesterases superfamily represents the catalytic
domains of bacterial phosphatidylinositol-specific
phospholipase C (PI-PLC, EC 4.6.1.13), eukaryotic
phosphoinositide-specific phospholipase C (PI-PLC, EC
3.1.4.11), glycerophosphodiester phosphodiesterases
(GP-GDE, EC 3.1.4.46), sphingomyelinases D (SMases D)
(sphingomyelin phosphodiesterase D, EC 3.1.4.41) from
spider venom, SMases D-like proteins, and phospholipase
D (PLD) from several pathogenic bacteria, as well as
their uncharacterized homologs found in organisms
ranging from bacteria and archaea to metazoans, plants,
and fungi. PI-PLCs are ubiquitous enzymes hydrolyzing
the membrane lipid phosphoinositides to yield two
important second messengers, inositol phosphates and
diacylglycerol (DAG). GP-GDEs play essential roles in
glycerol metabolism and catalyze the hydrolysis of
glycerophosphodiesters to sn-glycerol-3-phosphate (G3P)
and the corresponding alcohols that are major sources of
carbon and phosphate. Both, PI-PLCs and GP-GDEs, can
hydrolyze the 3'-5' phosphodiester bonds in different
substrates, and utilize a similar mechanism of general
base and acid catalysis with conserved histidine
residues, which consists of two steps, a phosphotransfer
and a phosphodiesterase reaction. This superfamily also
includes Neurospora crassa ankyrin repeat protein NUC-2
and its Saccharomyces cerevisiae counterpart, Phosphate
system positive regulatory protein PHO81,
glycerophosphodiester phosphodiesterase (GP-GDE)-like
protein SHV3 and SHV3-like proteins (SVLs). The residues
essential for enzyme activities and metal binding are
not conserved in these sequence homologs, which might
suggest that the function of catalytic domains in these
proteins might be distinct from those in typical
PLC-like phosphodiesterases.
Length = 179
Score = 24.7 bits (54), Expect = 5.6
Identities = 7/32 (21%), Positives = 14/32 (43%), Gaps = 4/32 (12%)
Query: 7 SRVYPKGQRIDSSNYNPVPLWNVGSQMLALNF 38
SR++ ++ +N N+G L +F
Sbjct: 152 SRIWT----VNDNNEIINKFLNLGVDGLITDF 179
>gnl|CDD|217821 pfam03969, AFG1_ATPase, AFG1-like ATPase. This family of proteins
contains a P-loop motif and are predicted to be ATPases.
Length = 361
Score = 24.7 bits (54), Expect = 6.1
Identities = 8/35 (22%), Positives = 12/35 (34%)
Query: 32 QMLALNFQTPDKAMQVNHAKFRMNGGCGYLLRPAF 66
L L P ++V R G L+ +F
Sbjct: 231 DALTLGEPQPLSTLEVAARLARARAAGGDLVWFSF 265
>gnl|CDD|216677 pfam01747, ATP-sulfurylase, ATP-sulfurylase. This domain is the
catalytic domain of ATP-sulfurylase or sulfate
adenylyltransferase EC:2.7.7.4 some of which are part of
a bifunctional polypeptide chain associated with
adenosyl phosphosulphate (APS) kinase pfam01583. Both
enzymes are required for PAPS
(phosphoadenosine-phosphosulfate) synthesis from
inorganic sulphate. ATP sulfurylase catalyzes the
synthesis of adenosine-phosphosulfate APS from ATP and
inorganic sulphate.
Length = 214
Score = 24.5 bits (54), Expect = 6.3
Identities = 11/34 (32%), Positives = 14/34 (41%), Gaps = 8/34 (23%)
Query: 49 HAKFRMNGGCGYLL--R---PAFMFSESYDPYDP 77
HA R N GC + + R + Y PYD
Sbjct: 106 HAIIRKNYGCTHFIVGRDHAGVGDY---YGPYDA 136
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 0.430
Gapped
Lambda K H
0.267 0.0766 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 4,113,468
Number of extensions: 299799
Number of successful extensions: 213
Number of sequences better than 10.0: 1
Number of HSP's gapped: 212
Number of HSP's successfully gapped: 39
Length of query: 82
Length of database: 10,937,602
Length adjustment: 51
Effective length of query: 31
Effective length of database: 8,675,548
Effective search space: 268941988
Effective search space used: 268941988
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: 53 (24.1 bits)