RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy7644
(316 letters)
>gnl|CDD|176555 cd08616, PI-PLCXD1c, Catalytic domain of
phosphatidylinositol-specific phospholipase C, X domain
containing 1. This subfamily corresponds to the
catalytic domain present in a group of
phosphatidylinositol-specific phospholipase C X domain
containing 1 (PI-PLCXD1), 2 (PI-PLCXD2) and 3
(PI-PLCXD3), which are bacterial
phosphatidylinositol-specific phospholipase C (PI-PLC,
EC 4.6.1.13) sequence homologs found in vertebrates. The
typical eukaryotic phosphoinositide-specific
phospholipase C (PI-PLC, EC 3.1.4.11) has a multidomain
organization that consists of a PLC catalytic core
domain, and various regulatory domains. The catalytic
core domain is assembled from two highly conserved X-
and Y-regions split by a divergent linker sequence. In
contrast, members in this group contain a single
TIM-barrel type catalytic domain, X domain, and are more
closely related to bacterial PI-PLCs, which participate
in Ca2+-independent PI metabolism, hydrolyzing the
membrane lipid phosphatidylinositol (PI) to produce
phosphorylated myo-inositol and diacylglycerol (DAG).
Although the biological function of eukaryotic PI-PLCXDs
still remains unclear, it may distinct from that of
typical eukaryotic PI-PLCs.
Length = 290
Score = 285 bits (732), Expect = 4e-96
Identities = 116/302 (38%), Positives = 170/302 (56%), Gaps = 26/302 (8%)
Query: 10 LPVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSV 69
LP L P+ LAIPGSHD+ TY+I K S ++PD S V+ L KVF + K++V WS
Sbjct: 1 LPEKLKDKPLTNLAIPGSHDSFTYSIDKQSPVSPDQS--VQNLVKVFPCIFKKIVKKWSK 58
Query: 70 TQHSNITEQLNMGVRYLDLRISTKPGDSSFYFVHAMFADKIF-GSSDINQAWGLFFLFCT 128
TQ ITEQL G+RY DLRI+TKP D+ YFVH ++ + +IN F T
Sbjct: 59 TQSLTITEQLEAGIRYFDLRIATKPKDNDLYFVHGLYGILVKEILEEIND-------FLT 111
Query: 129 RH----------HFYKFSKEAHVQMIQIIADVFGSKLCVQPNPVTRVSLKWMWSHGYQVI 178
H HFY ++E H +++++I +FG KLC + + V+L+++W GYQVI
Sbjct: 112 EHPKEVVILDFNHFYGMTEEDHEKLLKMIKSIFGKKLCPRDPDLLNVTLEYLWEKGYQVI 171
Query: 179 VVYRNDIIFHVDKGKRLWSGSLWPTFWPDTTSVSKLIEYCDRVLSQRGQYFGFVTQCLMT 238
V Y + K LW P+ WP+TT KLI++ + L +R V+Q ++T
Sbjct: 172 VFYHDP---VAKKPPYLWPSDAIPSPWPNTTDPKKLIQFLETTLKERRPPGFHVSQGILT 228
Query: 239 PDTKFVTKNIFSNLFNKCARPCNDVMKNWIAQKEPGE-QGVNVIIADFISMDGFDFCNTV 297
PD K + +++ S L + W+ ++EPG QGVN+IIADF+ +D +F +TV
Sbjct: 229 PDVKTILRHLTSGLLKTLTLRALPKLLEWLRKQEPGSGQGVNIIIADFVDLD--EFIDTV 286
Query: 298 IS 299
I+
Sbjct: 287 IA 288
>gnl|CDD|176529 cd08587, PI-PLCXDc_like, Catalytic domain of
phosphatidylinositol-specific phospholipase C X domain
containing and similar proteins. This family
corresponds to the catalytic domain present in
phosphatidylinositol-specific phospholipase C X domain
containing proteins (PI-PLCXD) which are bacterial
phosphatidylinositol-specific phospholipase C (PI-PLC,
EC 4.6.1.13) sequence homologs mainly found in
eukaryota. The typical eukaryotic
phosphoinositide-specific phospholipase C (PI-PLC, EC
3.1.4.11) have a multidomain organization that consists
of a PLC catalytic core domain, and various regulatory
domains. The catalytic core domain is assembled from two
highly conserved X- and Y-regions split by a divergent
linker sequence. In contrast, eukaryotic PI-PLCXDs and
their bacterial homologs contain a single TIM-barrel
type catalytic domain, X domain, which is more closely
related to that of bacterial PI-PLCs. Although the
biological function of eukaryotic PI-PLCXDs still
remains unclear, it may be distinct from that of typical
eukaryotic PI-PLCs.
Length = 288
Score = 214 bits (548), Expect = 2e-68
Identities = 96/305 (31%), Positives = 150/305 (49%), Gaps = 37/305 (12%)
Query: 11 PVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVT 70
P ++ P+ L IPGSHD+ Y I S + PD + FG + K +V WSVT
Sbjct: 1 PSAIGDLPLRDLVIPGSHDSGMYTINGDSPVGPDQPE--------FGKIAKGIVRKWSVT 52
Query: 71 QHSNITEQLNMGVRYLDLRISTKPGDSS-FYFVHAMFADKIFGS--SDINQAWGLFFLFC 127
Q +I +QL G+RY DLR++ KP + YFVH +++ + D+N F
Sbjct: 53 QSLSIYDQLEAGIRYFDLRVAYKPDSENKLYFVHGLYSGEPVDEVLEDVND-------FL 105
Query: 128 TRH----------HFY---KFSKEAHVQMIQIIADVFGSKLCVQPNPVTRVSLKWMWSHG 174
H HFY S E H ++++++ D+FG KLC + + + V+L +W G
Sbjct: 106 DEHPKEVVILDFNHFYGMDDKSPEDHEKLVELLEDIFGDKLCPRDSDLLDVTLADLWESG 165
Query: 175 YQVIVVYRNDIIFHVDKGKRLWSGSLWPTFWPDTTSVSKLIEYCDRVLSQ-RGQYFGFVT 233
+VIV Y +D+ +G LW P W +T KLI++ + L + R FV
Sbjct: 166 KRVIVFYDDDLA---SEGPYLWPSPYIPDPWANTDDPQKLIDFLENKLKERRRPDKFFVL 222
Query: 234 QCLMTPDTKFVTKNIFSNLFNKCARPCNDVMKNWIAQKEPGEQGVNVIIADFISMDGFDF 293
Q ++TP + +FS L K A N + W+ ++ PG+ G N+I+ DF+ D +F
Sbjct: 223 QWILTPQASTIVLGLFSGLLKKLALRANPALLEWLREQLPGQDGPNIILNDFV--DLGEF 280
Query: 294 CNTVI 298
+ I
Sbjct: 281 IDLAI 285
>gnl|CDD|176500 cd08557, PI-PLCc_bacteria_like, Catalytic domain of bacterial
phosphatidylinositol-specific phospholipase C and
similar proteins. This subfamily corresponds to the
catalytic domain present in bacterial
phosphatidylinositol-specific phospholipase C (PI-PLC,
EC 4.6.1.13) and their sequence homologs found in
eukaryota. Bacterial PI-PLCs participate in
Ca2+-independent PI metabolism, hydrolyzing the membrane
lipid phosphatidylinositol (PI) to produce
phosphorylated myo-inositol and diacylglycerol (DAG).
Although their precise physiological function remains
unclear, bacterial PI-PLCs may function as virulence
factors in some pathogenic bacteria. Bacterial PI-PLCs
contain a single TIM-barrel type catalytic domain. Its
catalytic mechanism is based on general base and acid
catalysis utilizing two well conserved histidines, and
consists of two steps, a phosphotransfer and a
phosphodiesterase reaction. Eukaryotic homologs in this
family are named as phosphatidylinositol-specific
phospholipase C X domain containing proteins (PI-PLCXD).
They are distinct from the typical eukaryotic
phosphoinositide-specific phospholipases C (PI-PLC, EC
3.1.4.11), which have a multidomain organization that
consists of a PLC catalytic core domain, and various
regulatory domains. The catalytic core domain is
assembled from two highly conserved X- and Y-regions
split by a divergent linker sequence. In contrast,
eukaryotic PI-PLCXDs contain a single TIM-barrel type
catalytic domain, X domain, which is closely related to
that of bacterial PI-PLCs. Although the biological
function of eukaryotic PI-PLCXDs still remains unclear,
it may be distinct from that of typical eukaryotic
PI-PLCs. This family 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 = 271
Score = 124 bits (314), Expect = 6e-34
Identities = 71/307 (23%), Positives = 113/307 (36%), Gaps = 56/307 (18%)
Query: 11 PVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVT 70
P L P+ L+IPG+H++ Y I +S +V WS T
Sbjct: 1 PALLDDLPLSQLSIPGTHNSYAYTIDGNS----------------------PIVSKWSKT 38
Query: 71 QHSNITEQLNMGVRYLDLRISTKPGDSSFYFVHAMF--ADKIFGS--SDINQAWGLFFLF 126
Q +IT+QL+ GVRYLDLR++ P D Y H +F + +++ FL
Sbjct: 39 QDLSITDQLDAGVRYLDLRVAYDPDDGDLYVCHGLFLLNGQTLEDVLNEVKD-----FL- 92
Query: 127 CTRH----------HFYKFS-KEAHVQMIQIIADVFGSKLCVQPNPVTR-VSLKWMWSHG 174
H H Y E H ++ ++ DV G L P +L + + G
Sbjct: 93 -DAHPSEVVILDLEHEYGGDNGEDHDELDALLRDVLGDPLYRPPVRAGGWPTLGELRA-G 150
Query: 175 YQVIVVYRNDIIFHVDKGKRLWSGSLWPTFWP-DTTSVSKLIEYCDRVLSQRGQY-FGFV 232
+V++ Y G W + T + L + + L+ F +V
Sbjct: 151 KRVLLFYFGG---DDSSGGYDWGSLNIQDPYANGTDKLESLKAFLNSALASPRSADFFYV 207
Query: 233 TQCLMTPDTKFVTKNIFSNLFNKCARPCNDVMKNWIAQKEPGEQGVNVIIADFISMDGFD 292
Q +TP + A N + W+ + G G N++ DF+ D D
Sbjct: 208 NQASLTPGRITIAVA---GSLYTVATRANPALYEWLKEDGSGASGPNIVATDFV--DVGD 262
Query: 293 FCNTVIS 299
+ VI
Sbjct: 263 LIDAVIR 269
>gnl|CDD|140294 PTZ00268, PTZ00268, glycosylphosphatidylinositol-specific
phospholipase C; Provisional.
Length = 380
Score = 66.8 bits (163), Expect = 2e-12
Identities = 35/106 (33%), Positives = 52/106 (49%), Gaps = 6/106 (5%)
Query: 4 EHWMRDLPVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVK-- 61
+ WM DL + I + + GSH+ +Y I K S DA + D V L +
Sbjct: 16 QSWMHDLRSFIGEMAITQVCLVGSHNAASYGIHKDSPFGADAPGFLLG-DSVVASLSRFL 74
Query: 62 --RVVFNWSVTQHSNITEQLNMGVRYLDLRISTKPGDSS-FYFVHA 104
+ +WS Q ++ QL+ GVRYLDLR++T P D++ Y H
Sbjct: 75 FRGISASWSKCQGMSVRAQLDHGVRYLDLRVATNPEDANRLYISHT 120
>gnl|CDD|176528 cd08586, PI-PLCc_BcPLC_like, Catalytic domain of Bacillus cereus
phosphatidylinositol-specific phospholipases C and
similar proteins. This subfamily corresponds to the
catalytic domain present in Bacillus cereus
phosphatidylinositol-specific phospholipase C (PI-PLC,
EC 4.6.1.13) and its sequence homologs found in bacteria
and eukaryota. Bacterial PI-PLCs participate in
Ca2+-independent PI metabolism, hydrolyzing the membrane
lipid phosphatidylinositol (PI) to produce
phosphorylated myo-inositol and diacylglycerol (DAG).
Although their precise physiological function remains
unclear, bacterial PI-PLCs may function as virulence
factors in some pathogenic bacteria. Bacterial PI-PLCs
contain a single TIM-barrel type catalytic domain. Their
catalytic mechanism 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 family also includes
some uncharacterized eukaryotic homologs, which contains
a single TIM-barrel type catalytic domain, X domain.
They are similar to bacterial PI-PLCs, and distinct from
typical eukaryotic PI-PLCs, which have a multidomain
organization that consists of a PLC catalytic core
domain, and various regulatory domains, and strictly
require Ca2+ for their catalytic activities. The
prototype of this family is Bacillus cereus PI-PLC,
which has a moderate thermal stability and is active as
a monomer.
Length = 279
Score = 58.4 bits (142), Expect = 7e-10
Identities = 21/85 (24%), Positives = 31/85 (36%), Gaps = 28/85 (32%)
Query: 22 LAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVTQHSNITEQLNM 81
L+IPG+HD+ SS Q +I EQLN
Sbjct: 13 LSIPGTHDSGALHGGLSS---------------------------SVQCQDWSIAEQLNA 45
Query: 82 GVRYLDLRISTKPGDSSFYFVHAMF 106
G+R+LD+R+ ++ H F
Sbjct: 46 GIRFLDIRLR-LIDNNDLAIHHGPF 69
>gnl|CDD|176559 cd08622, PI-PLCXDc_CG14945_like, Catalytic domain of Drosophila
melanogaster CG14945-like proteins similar to
phosphatidylinositol-specific phospholipase C, X domain
containing. This subfamily corresponds to the catalytic
domain present in uncharacterized metazoan Drosophila
melanogaster CG14945-like proteins, which are similar to
eukaryotic phosphatidylinositol-specific phospholipase
C, X domain containing proteins (PI-PLCXD). The typical
eukaryotic phosphoinositide-specific phospholipase C
(PI-PLC, EC 3.1.4.11) has a multidomain organization
that consists of a PLC catalytic core domain, and
various regulatory domains. The catalytic core domain is
assembled from two highly conserved X- and Y-regions
split by a divergent linker sequence. In contrast,
eukaryotic PI-PLCXDs contain a single TIM-barrel type
catalytic domain, X domain, and are more closely related
to bacterial PI-PLCs, which participate in
Ca2+-independent PI metabolism, hydrolyzing the membrane
lipid phosphatidylinositol (PI) to produce
phosphorylated myo-inositol and diacylglycerol (DAG).
Although the biological function of eukaryotic PI-PLCXDs
still remains unclear, it may distinct from that of
typical eukaryotic PI-PLCs.
Length = 276
Score = 57.0 bits (138), Expect = 2e-09
Identities = 59/287 (20%), Positives = 102/287 (35%), Gaps = 58/287 (20%)
Query: 22 LAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVTQHSNITEQLNM 81
L IPG+H++ Y ++ LV + +TQ +I QL
Sbjct: 12 LFIPGTHNSAAYDTNSNANE----------------SLVD----KYLLTQDLDIWTQLVH 51
Query: 82 GVRYLDLRISTKPGDS-SFYFVHAMFADKIFGSS------DINQAWGLFFLFCTR----- 129
G+RYLDLR+ P +F+ H D + D+ F+ T
Sbjct: 52 GIRYLDLRVGYYPDSPDNFWINH----DLVRIVPLLTVLNDVRN-----FVQNTGEIVVL 102
Query: 130 --HHF-YKFSK--EAHVQMIQIIADVFGSKLCVQPNPVTR-VSLKWMWSHGYQVIVVYRN 183
H F F E H ++I ++ G + + +L +W+ +VI+ Y +
Sbjct: 103 DFHRFPVGFHSHPEVHDELISLLRQELGDLILRRSRNYGWGPTLSEIWARRKRVIICYDH 162
Query: 184 DIIFHVDKGKRLWSGSLWPTFWPDTTSVSKLIEYCDRVLSQRGQYFG---FVTQCLMTPD 240
+ V + LW W + ++ L Y +++SQ F +TP
Sbjct: 163 EYF--VRESDWLWPP--VQQKWGNVQTLDDLKSYLRKLISQP-HRFTNPPVSLMAELTPV 217
Query: 241 TKFVTKNIFSNLFNKCARPCNDVMKNWIAQKEPGEQGVNVIIADFIS 287
+ + NL K A N + W ++ N++ DF
Sbjct: 218 PWDIISDRLGNL-RKLADIVNRKLTRWY--RDEWGYNANIVATDFFL 261
>gnl|CDD|176558 cd08621, PI-PLCXDc_like_2, Catalytic domain of uncharacterized
hypothetical proteins similar to eukaryotic
phosphatidylinositol-specific phospholipase C, X domain
containing proteins. This subfamily corresponds to the
catalytic domain present in a group of uncharacterized
hypothetical proteins found in bacteria and fungi, which
are similar to eukaryotic phosphatidylinositol-specific
phospholipase C, X domain containing proteins
(PI-PLCXD). The typical eukaryotic
phosphoinositide-specific phospholipase C (PI-PLC, EC
3.1.4.11) has a multidomain organization that consists
of a PLC catalytic core domain, and various regulatory
domains. The catalytic core domain is assembled from two
highly conserved X- and Y-regions split by a divergent
linker sequence. In contrast, eukaryotic PI-PLCXDs
contain a single TIM-barrel type catalytic domain, X
domain, and are more closely related to bacterial
PI-PLCs, which participate in Ca2+-independent PI
metabolism, hydrolyzing the membrane lipid
phosphatidylinositol (PI) to produce phosphorylated
myo-inositol and diacylglycerol (DAG). Although the
biological function of eukaryotic PI-PLCXDs still
remains unclear, it may distinct from that of typical
eukaryotic PI-PLCs.
Length = 300
Score = 40.4 bits (95), Expect = 7e-04
Identities = 22/96 (22%), Positives = 36/96 (37%), Gaps = 20/96 (20%)
Query: 13 SLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVTQH 72
+ P+ ++ +PG+HD SG++ L G + + TQ
Sbjct: 3 VIKDRPLRHIVMPGTHD---------SGMS--------SLTG--GLWPVDGNDSNTQTQG 43
Query: 73 SNITEQLNMGVRYLDLRISTKPGDSSFYFVHAMFAD 108
+I +QL G RY D+R G + H D
Sbjct: 44 LSIYDQLRAGARYFDIRPVITHG-GELWTGHYNGED 78
>gnl|CDD|176557 cd08620, PI-PLCXDc_like_1, Catalytic domain of uncharacterized
hypothetical proteins similar to eukaryotic
phosphatidylinositol-specific phospholipase C, X domain
containing proteins. This subfamily corresponds to the
catalytic domain present in a group of uncharacterized
hypothetical proteins found in bacteria and fungi, which
are similar to eukaryotic phosphatidylinositol-specific
phospholipase C, X domain containing proteins
(PI-PLCXD). The typical eukaryotic
phosphoinositide-specific phospholipase C (PI-PLC, EC
3.1.4.11) has a multidomain organization that consists
of a PLC catalytic core domain, and various regulatory
domains. The catalytic core domain is assembled from two
highly conserved X- and Y-regions split by a divergent
linker sequence. In contrast, eukaryotic PI-PLCXDs
contain a single TIM-barrel type catalytic domain, X
domain, and are more closely related to bacterial
PI-PLCs, which participate in Ca2+-independent PI
metabolism, hydrolyzing the membrane lipid
phosphatidylinositol (PI) to produce phosphorylated
myo-inositol and diacylglycerol (DAG). Although the
biological function of eukaryotic PI-PLCXDs still
remains unclear, it may distinct from that of typical
eukaryotic PI-PLCs.
Length = 281
Score = 39.7 bits (93), Expect = 0.001
Identities = 16/47 (34%), Positives = 20/47 (42%), Gaps = 7/47 (14%)
Query: 66 NWSVTQHSNITEQLNMGVRYLDLR-------ISTKPGDSSFYFVHAM 105
N SVTQ N++ QL +G RY D R + Y H M
Sbjct: 27 NLSVTQKDNVSTQLALGARYFDFRPGYLWPQTRVLVLLNDLYHQHNM 73
>gnl|CDD|112315 pfam03490, Varsurf_PPLC, Variant-surface-glycoprotein
phospholipase C.
Length = 51
Score = 29.2 bits (65), Expect = 0.34
Identities = 13/44 (29%), Positives = 20/44 (45%)
Query: 2 SNEHWMRDLPVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDA 45
+ WM DL + I + G+HD ++ I+K S DA
Sbjct: 7 HPQSWMHDLRSFIEEKAIGQVCFVGAHDAASHGIQKDSPFGADA 50
>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 = 31.1 bits (70), Expect = 0.60
Identities = 20/74 (27%), Positives = 31/74 (41%), Gaps = 24/74 (32%)
Query: 16 SFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVTQHSNI 75
+ P+ + +IPG+HDT A + + KQV W +TQ
Sbjct: 5 TQPLAHYSIPGTHDTYLTAGQFT-------IKQV-----------------WGLTQTEMY 40
Query: 76 TEQLNMGVRYLDLR 89
+QL G R +D+R
Sbjct: 41 RQQLLSGCRCVDIR 54
>gnl|CDD|187579 cd05271, NDUFA9_like_SDR_a, NADH dehydrogenase (ubiquinone) 1 alpha
subcomplex, subunit 9, 39 kDa, (NDUFA9) -like, atypical
(a) SDRs. This subgroup of extended SDR-like proteins
are atypical SDRs. They have a glycine-rich
NAD(P)-binding motif similar to the typical SDRs,
GXXGXXG, and have the YXXXK active site motif (though
not the other residues of the SDR tetrad). Members
identified include NDUFA9 (mitochondrial) and putative
nucleoside-diphosphate-sugar epimerase. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Atypical SDRs include
biliverdin IX beta reductase (BVR-B,aka flavin
reductase), NMRa (a negative transcriptional regulator
of various fungi), progesterone 5-beta-reductase like
proteins, phenylcoumaran benzylic ether and
pinoresinol-lariciresinol reductases, phenylpropene
synthases, eugenol synthase, triphenylmethane reductase,
isoflavone reductases, and others. SDRs are a
functionally diverse family of oxidoreductases that have
a single domain with a structurally conserved Rossmann
fold, an NAD(P)(H)-binding region, and a structurally
diverse C-terminal region. Sequence identity between
different SDR enzymes is typically in the 15-30% range;
they catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. In addition to the
Rossmann fold core region typical of all SDRs, extended
SDRs have a less conserved C-terminal extension of
approximately 100 amino acids, and typically have a
TGXXGXXG cofactor binding motif. Complex (multidomain)
SDRs such as ketoreductase domains of fatty acid
synthase have a GGXGXXG NAD(P)-binding motif and an
altered active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 273
Score = 30.7 bits (70), Expect = 0.76
Identities = 16/54 (29%), Positives = 21/54 (38%), Gaps = 9/54 (16%)
Query: 173 HGYQVIVVYRNDIIFHVDKGKRLWSGSLW---PTFW--PDTTSVSKLIEYCDRV 221
G QVIV YR + + L G L + D S+ K +E D V
Sbjct: 23 RGSQVIVPYRCEA----YARRLLVMGDLGQVLFVEFDLRDDESIRKALEGSDVV 72
>gnl|CDD|197543 smart00148, PLCXc, Phospholipase C, catalytic domain (part);
domain X. 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 = 143
Score = 29.2 bits (66), Expect = 1.7
Identities = 12/73 (16%), Positives = 22/73 (30%), Gaps = 29/73 (39%)
Query: 18 PIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVFGPLVKRVVFNWSVTQHSNITE 77
P+ + IP SH+T K++ W + +
Sbjct: 4 PLSHYFIPSSHNTYL--------------------------TGKQL---WGESSVEGYIQ 34
Query: 78 QLNMGVRYLDLRI 90
L+ G R ++L
Sbjct: 35 ALDAGCRCVELDC 47
>gnl|CDD|176556 cd08619, PI-PLCXDc_plant, Catalytic domain of
phosphatidylinositol-specific phospholipase C, X domain
containing proteins found in plants. The CD
corresponds to the catalytic domain present in
uncharacterized plant phosphatidylinositol-specific
phospholipase C, X domain containing proteins
(PI-PLCXD). The typical eukaryotic
phosphoinositide-specific phospholipase C (PI-PLC, EC
3.1.4.11) has a multidomain organization that consists
of a PLC catalytic core domain, and various regulatory
domains. The catalytic core domain is assembled from
two highly conserved X- and Y-regions split by a
divergent linker sequence. In contrast, plant PI-PLCXDs
contain a single TIM-barrel type catalytic domain, X
domain, and are more closely related to bacterial
PI-PLCs, which participate in Ca2+-independent PI
metabolism, hydrolyzing the membrane lipid
phosphatidylinositol (PI) to produce phosphorylated
myo-inositol and diacylglycerol (DAG). Although the
biological function of plant PI-PLCXDs still remains
unclear, it may distinct from that of typical
eukaryotic PI-PLCs.
Length = 285
Score = 29.4 bits (66), Expect = 2.2
Identities = 25/94 (26%), Positives = 36/94 (38%), Gaps = 27/94 (28%)
Query: 1 MSNEH--WM--RDLPVSLHSFPIIYLAIPGSHDTMTYAIKKSSGIAPDASKQVRFLDKVF 56
+++H WM L S + + PG+HD+ T I GI KV
Sbjct: 7 HTDDHKEWMSLSQLKAMDSSLKLRDIVWPGTHDSATNKI----GIP-----------KVS 51
Query: 57 GPLVKRVVFNWSVTQHSNITEQLNMGVRYLDLRI 90
P + Q +I QL G R LD+R+
Sbjct: 52 RPFAR--------CQSLSIYNQLCSGARVLDIRV 77
>gnl|CDD|215892 pfam00388, PI-PLC-X, Phosphatidylinositol-specific phospholipase
C, X domain. This associates with pfam00387 to form a
single structural unit.
Length = 145
Score = 28.6 bits (65), Expect = 2.6
Identities = 4/24 (16%), Positives = 8/24 (33%)
Query: 67 WSVTQHSNITEQLNMGVRYLDLRI 90
+ + L G R ++L
Sbjct: 24 TGKSSVEAYIQALLRGCRCVELDC 47
>gnl|CDD|145973 pfam03114, BAR, BAR domain. BAR domains are dimerisation, lipid
binding and curvature sensing modules found in many
different protein families. A BAR domain with an
additional N-terminal amphipathic helix (an N-BAR) can
drive membrane curvature. These N-BAR domains are found
in amphiphysin, endophilin, BRAP and Nadrin. BAR domains
are also frequently found alongside domains that
determine lipid specificity, like pfam00169 and
pfam00787 domains in beta centaurins and sorting nexins
respectively.
Length = 230
Score = 28.5 bits (64), Expect = 3.9
Identities = 19/121 (15%), Positives = 35/121 (28%), Gaps = 27/121 (22%)
Query: 131 HFYKFSKEAHVQ---MIQIIADVFGSKLCVQPNPVTRVSLKWMWSHGYQVIVVYRNDIIF 187
F + + + ++ + KL +QPNP R K + + +I
Sbjct: 27 DFEELERRFDTTEKLIKKLQKET---KLYLQPNPGARAKQKVLEQPEEL-LAETMIEI-- 80
Query: 188 HVDKGKRLWSGSLWPTFWPDTTSVSKLIEYCDRVLSQRGQYF----GFVTQCLMTPDTKF 243
G+ L S S K +E + Q Q + + P
Sbjct: 81 ----GEELGDDS----------SFGKALEKYGEAMKQLAQLLEQLDDRLRSNFLDPLRNL 126
Query: 244 V 244
+
Sbjct: 127 L 127
>gnl|CDD|214624 smart00331, PP2C_SIG, Sigma factor PP2C-like phosphatases.
Length = 193
Score = 28.1 bits (63), Expect = 5.4
Identities = 9/35 (25%), Positives = 18/35 (51%)
Query: 203 TFWPDTTSVSKLIEYCDRVLSQRGQYFGFVTQCLM 237
T + S+S+++E +R + + G+ F T L
Sbjct: 58 TLLSEGISLSQILERLNRAIYENGEDGMFATLFLA 92
>gnl|CDD|176532 cd08590, PI-PLCc_Rv2075c_like, Catalytic domain of
uncharacterized Mycobacterium tuberculosis Rv2075c-like
proteins. This subfamily corresponds to the catalytic
domain present in uncharacterized Mycobacterium
tuberculosis Rv2075c and its homologs. Members in this
family are more closely related to the Streptomyces
antibioticus phosphatidylinositol-specific
phospholipase C1(SaPLC1)-like proteins rather than the
typical bacterial phosphatidylinositol-specific
phospholipase C (PI-PLC, EC 4.6.1.13), which
participate in Ca2+-independent PI metabolism,
hydrolyzing the membrane lipid phosphatidylinositol
(PI) to produce phosphorylated myo-inositol and
diacylglycerol (DAG). In contrast, SaPLC1-like proteins
have two Ca2+-chelating amino acid substitutions which
convert them to metal-dependent bacterial PI-PLC.
Rv2075c and its homologs have the same amino acid
substitutions as well, which might suggest they have
metal-dependent PI-PLC activity.
Length = 267
Score = 27.8 bits (62), Expect = 6.7
Identities = 9/18 (50%), Positives = 15/18 (83%)
Query: 71 QHSNITEQLNMGVRYLDL 88
Q +IT+QL++G R+L+L
Sbjct: 43 QELSITDQLDLGARFLEL 60
>gnl|CDD|222686 pfam14331, ImcF-related_N, ImcF-related N-terminal domain. This
domain is found in bacterial ImcF (intracellular
multiplication and human macrophage-killing) proteins.
It is found to the N-terminus of the ImcF-related
domain, pfam06761.
Length = 264
Score = 27.9 bits (63), Expect = 7.4
Identities = 21/84 (25%), Positives = 34/84 (40%), Gaps = 14/84 (16%)
Query: 50 RFLDKVFG-------PLVKRVVFNWSVTQHSNITEQLNMGVRYLDLRISTKPGDSSF--- 99
+FL++VF PL+ R V+ S TQ +++ R L P
Sbjct: 164 QFLEEVFAPNRYEETPLL-RGVYFTSATQEGTPIDRVMSLSRRFGLAAGAPPAAQGTGRS 222
Query: 100 YFVHAMFADKIFGSSDI---NQAW 120
YF+ +F IF + + N+ W
Sbjct: 223 YFLRDLFRKVIFPEAGLAGPNRRW 246
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
0.327 0.138 0.453
Gapped
Lambda K H
0.267 0.0710 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 16,179,309
Number of extensions: 1503684
Number of successful extensions: 1629
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1610
Number of HSP's successfully gapped: 23
Length of query: 316
Length of database: 10,937,602
Length adjustment: 97
Effective length of query: 219
Effective length of database: 6,635,264
Effective search space: 1453122816
Effective search space used: 1453122816
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.1 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.7 bits)
S2: 59 (26.5 bits)