RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy11534
(81 letters)
>gnl|CDD|133134 cd06603, GH31_GANC_GANAB_alpha, This family includes the closely
related glycosyl hydrolase family 31 (GH31) isozymes,
neutral alpha-glucosidase C (GANC) and the alpha subunit
of heterodimeric neutral alpha-glucosidase AB (GANAB).
Initially distinguished on the basis of differences in
electrophoretic mobility in starch gel, GANC and GANAB
have been shown to have other differences, including
those of substrate specificity. GANC and GANAB are key
enzymes in glycogen metabolism that hydrolyze terminal,
non-reducing 1,4-linked alpha-D-glucose residues from
glycogen in the endoplasmic reticulum. The GANC/GANAB
family includes the alpha-glucosidase II (ModA) from
Dictyostelium discoideum as well as the
alpha-glucosidase II (GLS2, or ROT2 - Reversal of TOR2
lethality protein 2) from Saccharomyces cerevisiae.
Length = 339
Score = 129 bits (327), Expect = 2e-38
Identities = 42/63 (66%), Positives = 49/63 (77%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSL 60
+ MATF+GLLKRS +RPF+LTRS FAGSQR+ AIWTGDN A W HLKIS+PM LSL
Sbjct: 194 LYMHMATFDGLLKRSEGNKRPFVLTRSFFAGSQRYAAIWTGDNTATWEHLKISIPMLLSL 253
Query: 61 AVS 63
+
Sbjct: 254 NIC 256
>gnl|CDD|133135 cd06604, GH31_glucosidase_II_MalA, Alpha-glucosidase II
(alpha-D-glucoside glucohydrolase) is a glycosyl
hydrolase family 31 (GH31) enzyme, found in bacteria and
plants, which has exo-alpha-1,4-glucosidase and
oligo-1,6-glucosidase activities. Alpha-glucosidase II
has been characterized in Bacillus
thermoamyloliquefaciens where it forms a homohexamer.
This family also includes the MalA alpha-glucosidase
from Sulfolobus sulfataricus and the AglA
alpha-glucosidase from Picrophilus torridus. MalA is
part of the carbohydrate-metabolizing machinery that
allows this organism to utilize carbohydrates, such as
maltose, as the sole carbon and energy source.
Length = 339
Score = 108 bits (271), Expect = 4e-30
Identities = 34/63 (53%), Positives = 49/63 (77%), Gaps = 1/63 (1%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSL 60
+L AT+EGL K++ +RPFILTR+G+AG QR+ A+WTGDN + W HL++S+PM L+L
Sbjct: 195 LLMARATYEGL-KKARPNERPFILTRAGYAGIQRYAAVWTGDNRSSWEHLRLSIPMLLNL 253
Query: 61 AVS 63
+S
Sbjct: 254 GLS 256
>gnl|CDD|216268 pfam01055, Glyco_hydro_31, Glycosyl hydrolases family 31. Glycosyl
hydrolases are key enzymes of carbohydrate metabolism.
Family 31 comprises of enzymes that are, or similar to,
alpha- galactosidases.
Length = 436
Score = 100 bits (251), Expect = 7e-27
Identities = 35/63 (55%), Positives = 44/63 (69%), Gaps = 1/63 (1%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSL 60
+L AT+EGL KR +RPFIL+RSGFAGSQR+ A WTGDN + W L+ S+P LS
Sbjct: 201 LLMARATYEGLRKRRP-NKRPFILSRSGFAGSQRYAAHWTGDNTSSWEGLRYSIPGGLSF 259
Query: 61 AVS 63
+S
Sbjct: 260 GLS 262
>gnl|CDD|133131 cd06600, GH31_MGAM-like, This family includes the following closely
related glycosyl hydrolase family 31 (GH31) enzymes:
maltase-glucoamylase (MGAM), sucrase-isomaltase (SI),
lysosomal acid alpha-glucosidase (GAA), neutral
alpha-glucosidase C (GANC), the alpha subunit of neutral
alpha-glucosidase AB (GANAB), and alpha-glucosidase II.
MGAM is one of the two enzymes responsible for
catalyzing the last glucose-releasing step in starch
digestion. SI is implicated in the digestion of dietary
starch and major disaccharides such as sucrose and
isomaltose, while GAA degrades glycogen in the lysosome,
cleaving both alpha-1,4 and alpha-1,6 glucosidic
linkages. MGAM and SI are anchored to small-intestinal
brush-border epithelial cells. The absence of SI from
the brush border membrane or its malfunction is
associated with malabsorption disorders such as
congenital sucrase-isomaltase deficiency (CSID). The
domain architectures of MGAM and SI include two tandem
GH31 catalytic domains, an N-terminal domain found near
the membrane-bound end and a C-terminal luminal domain.
Both of the tandem GH31 domains of MGAM and SI are
included in this family. The domain architecture of GAA
includes an N-terminal TFF (trefoil factor family)
domain in addition to the GH31 catalytic domain.
Deficient GAA expression causes pompe disease, an
autosomal recessive genetic disorder also known as
glycogen storage disease type II (GSDII). GANC and GANAB
are key enzymes in glycogen metabolism that hydrolyze
terminal, non-reducing 1,4-linked alpha-D-glucose
residues from glycogen in the endoplasmic reticulum.
Alpha-glucosidase II is a GH31 enzyme, found in bacteria
and plants, which has exo-alpha-1,4-glucosidase and
oligo-1,6-glucosidase activities. Alpha-glucosidase II
has been characterized in Bacillus
thermoamyloliquefaciens where it forms a homohexamer.
This family also includes the MalA alpha-glucosidase
from Sulfolobus sulfataricus and the AglA
alpha-glucosidase from Picrophilus torridus. MalA is
part of the carbohydrate-metabolizing machinery that
allows this organism to utilize carbohydrates, such as
maltose, as the sole carbon and energy source. The
MGAM-like family corresponds to subgroup 1 in the Ernst
et al classification of GH31 enzymes.
Length = 317
Score = 92.3 bits (229), Expect = 3e-24
Identities = 34/61 (55%), Positives = 43/61 (70%), Gaps = 1/61 (1%)
Query: 3 QVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLAV 62
+ MAT EG + R FILTRSGFAGSQ++ AIWTGDN A W LK+S+P+ L L++
Sbjct: 175 EAMATAEGFRTSHP-RNRIFILTRSGFAGSQKYAAIWTGDNTASWDDLKLSIPLVLGLSI 233
Query: 63 S 63
S
Sbjct: 234 S 234
>gnl|CDD|215408 PLN02763, PLN02763, hydrolase, hydrolyzing O-glycosyl compounds.
Length = 978
Score = 89.9 bits (223), Expect = 7e-23
Identities = 35/73 (47%), Positives = 51/73 (69%), Gaps = 1/73 (1%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSL 60
ML +T+EG+L +N +RPF+LTR+GF GSQR+ A WTGDN++ W HL +S+PM L L
Sbjct: 374 MLMARSTYEGMLL-ANKNKRPFVLTRAGFIGSQRYAATWTGDNLSNWEHLHMSIPMVLQL 432
Query: 61 AVSEKKSANFVVG 73
+S + + +G
Sbjct: 433 GLSGQPLSGPDIG 445
>gnl|CDD|224418 COG1501, COG1501, Alpha-glucosidases, family 31 of glycosyl
hydrolases [Carbohydrate transport and metabolism].
Length = 772
Score = 84.4 bits (209), Expect = 6e-21
Identities = 31/63 (49%), Positives = 43/63 (68%), Gaps = 1/63 (1%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSL 60
+L A +E L K +RPFIL+RSG+AGSQR+ A W+GDN + W L+ S+P LSL
Sbjct: 439 LLYAKAVYEAL-KELGGNERPFILSRSGYAGSQRYAAHWSGDNRSSWDSLRESIPAGLSL 497
Query: 61 AVS 63
++S
Sbjct: 498 SLS 500
>gnl|CDD|133121 cd06589, GH31, The enzymes of glycosyl hydrolase family 31 (GH31)
occur in prokaryotes, eukaryotes, and archaea with a
wide range of hydrolytic activities, including
alpha-glucosidase (glucoamylase and sucrase-isomaltase),
alpha-xylosidase, 6-alpha-glucosyltransferase,
3-alpha-isomaltosyltransferase and alpha-1,4-glucan
lyase. All GH31 enzymes cleave a terminal carbohydrate
moiety from a substrate that varies considerably in
size, depending on the enzyme, and may be either a
starch or a glycoprotein. In most cases, the pyranose
moiety recognized in subsite -1 of the substrate binding
site is an alpha-D-glucose, though some GH31 family
members show a preference for alpha-D-xylose. Several
GH31 enzymes can accommodate both glucose and xylose and
different levels of discrimination between the two have
been observed. Most characterized GH31 enzymes are
alpha-glucosidases. In mammals, GH31 members with
alpha-glucosidase activity are implicated in at least
three distinct biological processes. The lysosomal acid
alpha-glucosidase (GAA) is essential for glycogen
degradation and a deficiency or malfunction of this
enzyme causes glycogen storage disease II, also known as
pompe disease. In the endoplasmic reticulum,
alpha-glucosidase II catalyzes the second step in the
N-linked oligosaccharide processing pathway that
constitutes part of the quality control system for
glycoprotein folding and maturation. The intestinal
enzymes sucrase-isomaltase (SI) and maltase-glucoamylase
(MGAM) play key roles in the final stage of carbohydrate
digestion, making alpha-glucosidase inhibitors useful in
the treatment of type 2 diabetes. GH31
alpha-glycosidases are retaining enzymes that cleave
their substrates via an acid/base-catalyzed,
double-displacement mechanism involving a covalent
glycosyl-enzyme intermediate. Two aspartic acid residues
have been identified as the catalytic nucleophile and
the acid/base, respectively.
Length = 265
Score = 75.5 bits (186), Expect = 3e-18
Identities = 29/62 (46%), Positives = 44/62 (70%), Gaps = 1/62 (1%)
Query: 2 LQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLA 61
L AT+E L K S +RPFIL+RSG+AGSQR+ +W+GDN + W +L+ +P L+++
Sbjct: 145 LYAEATYEALRKNSK-NKRPFILSRSGYAGSQRYAGMWSGDNTSTWGYLRSQIPAGLTMS 203
Query: 62 VS 63
+S
Sbjct: 204 MS 205
>gnl|CDD|133133 cd06602, GH31_MGAM_SI_GAA, This family includes the following three
closely related glycosyl hydrolase family 31 (GH31)
enzymes: maltase-glucoamylase (MGAM), sucrase-isomaltase
(SI), and lysosomal acid alpha-glucosidase (GAA), also
known as acid-maltase. MGAM is one of the two enzymes
responsible for catalyzing the last glucose-releasing
step in starch digestion. SI is implicated in the
digestion of dietary starch and major disaccharides such
as sucrose and isomaltose, while GAA degrades glycogen
in the lysosome, cleaving both alpha-1,4 and alpha-1,6
glucosidic linkages. MGAM and SI are anchored to
small-intestinal brush-border epithelial cells. The
absence of SI from the brush border membrane or its
malfunction is associated with malabsorption disorders
such as congenital sucrase-isomaltase deficiency (CSID).
The domain architectures of MGAM and SI include two
tandem GH31 catalytic domains, an N-terminal domain
found near the membrane-bound end, and a C-terminal
luminal domain. Both of the tandem GH31 domains of MGAM
and SI are included in this family. The domain
architecture of GAA includes an N-terminal TFF (trefoil
factor family) domain in addition to the GH31 catalytic
domain. Deficient GAA expression causes pompe disease,
an autosomal recessive genetic disorder also known as
glycogen storage disease type II (GSDII).
Length = 339
Score = 70.3 bits (173), Expect = 5e-16
Identities = 19/53 (35%), Positives = 31/53 (58%), Gaps = 2/53 (3%)
Query: 3 QVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLP 55
+ +AT++ L +RPF+++RS F GS R+ W GDN + W L+ S+
Sbjct: 180 EAIATYKALQSIPG--KRPFVISRSTFPGSGRYAGHWLGDNASTWEDLRYSII 230
>gnl|CDD|133132 cd06601, GH31_lyase_GLase, GLases (alpha-1,4-glucan lyases) are
glycosyl hydrolase family 31 (GH31) enzymes that degrade
alpha-1,4-glucans and maltooligosaccharides via a
nonhydrolytic pathway to yield 1,5-D-anhydrofructose
from the nonreducing end. GLases cleave the bond between
C1 and O1 of the nonreducing sugar residue of
alpha-glucans to generate a monosaccharide product with
a double bond between C1 and C2. This family corresponds
to subgroup 2 in the Ernst et al classification of GH31
enzymes.
Length = 332
Score = 64.4 bits (157), Expect = 5e-14
Identities = 24/59 (40%), Positives = 36/59 (61%), Gaps = 1/59 (1%)
Query: 6 ATFEGLLK-RSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLAVS 63
AT+ GL + +R FI+ R +AG QRF +WTGDN + W L+I++ L+L +S
Sbjct: 180 ATWHGLNNLNARKNKRNFIIGRGSYAGMQRFAGLWTGDNSSSWDFLQINIAQVLNLGMS 238
>gnl|CDD|133129 cd06598, GH31_transferase_CtsZ, CtsZ (cyclic
tetrasaccharide-synthesizing enzyme Z) is a bacterial
6-alpha-glucosyltransferase, first identified in
Arthrobacter globiformis, that produces cyclic
tetrasaccharides together with a closely related enzyme
CtsY. CtsZ and CtsY both have a glycosyl hydrolase
family 31 (GH31) catalytic domain. All GH31 enzymes
cleave a terminal carbohydrate moiety from a substrate
that varies considerably in size, depending on the
enzyme, and may be either a starch or a glycoprotein.
Length = 317
Score = 60.9 bits (148), Expect = 1e-12
Identities = 23/47 (48%), Positives = 30/47 (63%), Gaps = 1/47 (2%)
Query: 18 QQRPFILTRSGFAGSQRFGAI-WTGDNMAEWSHLKISLPMCLSLAVS 63
+RPFIL R+GFAGSQR+G I W+GD W LK L +++S
Sbjct: 204 NERPFILMRAGFAGSQRYGVIPWSGDVGRTWDGLKSQPNAALQMSMS 250
>gnl|CDD|133122 cd06591, GH31_xylosidase_XylS, XylS is a glycosyl hydrolase family
31 (GH31) alpha-xylosidase found in prokaryotes,
eukaryotes, and archaea, that catalyzes the release of
alpha-xylose from the non-reducing terminal side of the
alpha-xyloside substrate. XylS has been characterized in
Sulfolobus solfataricus where it hydrolyzes
isoprimeverose, the p-nitrophenyl-beta derivative of
isoprimeverose, and xyloglucan oligosaccharides, and has
transxylosidic activity. All GH31 enzymes cleave a
terminal carbohydrate moiety from a substrate that
varies considerably in size, depending on the enzyme,
and may be either a starch or a glycoprotein. The XylS
family corresponds to subgroup 3 in the Ernst et al
classification of GH31 enzymes.
Length = 319
Score = 60.4 bits (147), Expect = 1e-12
Identities = 22/64 (34%), Positives = 39/64 (60%), Gaps = 2/64 (3%)
Query: 1 MLQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAI-WTGDNMAEWSHLKISLPMCLS 59
++ +EG + + ++R ILTRS +AGSQR+GA+ W+GD + W L+ + L+
Sbjct: 188 LMHAKGIYEGQ-RAAGDEKRVVILTRSAWAGSQRYGALVWSGDIDSSWETLRRQIAAGLN 246
Query: 60 LAVS 63
+ +S
Sbjct: 247 MGLS 250
>gnl|CDD|133130 cd06599, GH31_glycosidase_Aec37, Glycosyl hydrolase family 31
(GH31) domain of a bacterial protein family represented
by Escherichia coli protein Aec37. The gene encoding
Aec37 (aec-37) is located within a genomic island
(AGI-3) isolated from the extraintestinal avian
pathogenic Escherichia coli strain BEN2908. The function
of Aec37 and its orthologs is unknown; however, deletion
of a region of the genome that includes aec-37 affects
the assimilation of seven carbohydrates, decreases
growth rate of the strain in minimal medium containing
galacturonate or trehalose, and attenuates the virulence
of E. coli BEN2908 in chickens. All GH31 enzymes cleave
a terminal carbohydrate moiety from a substrate that
varies considerably in size, depending on the enzyme,
and may be either a starch or a glycoprotein.
Length = 317
Score = 60.4 bits (147), Expect = 2e-12
Identities = 20/44 (45%), Positives = 30/44 (68%)
Query: 20 RPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLAVS 63
RP+I++RSGFAG QR+ W+GDN W L+ ++ M L + +S
Sbjct: 214 RPYIVSRSGFAGIQRYAQTWSGDNRTSWKTLRYNIAMGLGMGLS 257
>gnl|CDD|133127 cd06596, GH31_CPE1046, CPE1046 is an uncharacterized Clostridium
perfringens protein with a glycosyl hydrolase family 31
(GH31) domain. The domain architecture of CPE1046 and
its orthologs includes a C-terminal fibronectin type 3
(FN3) domain and a coagulation factor 5/8 type C domain
in addition to the GH31 domain. Enzymes of the GH31
family possess a wide range of different hydrolytic
activities including alpha-glucosidase (glucoamylase and
sucrase-isomaltase), alpha-xylosidase,
6-alpha-glucosyltransferase,
3-alpha-isomaltosyltransferase and alpha-1,4-glucan
lyase. All GH31 enzymes cleave a terminal carbohydrate
moiety from a substrate that varies considerably in
size, depending on the enzyme, and may be either a
starch or a glycoprotein.
Length = 261
Score = 53.2 bits (128), Expect = 5e-10
Identities = 22/52 (42%), Positives = 32/52 (61%), Gaps = 2/52 (3%)
Query: 4 VMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLP 55
V A +G+ SN RPFI+T G+AG+QR+ IWTGD W +++ +P
Sbjct: 132 VKAAADGIESNSN--ARPFIVTVDGWAGTQRYAGIWTGDQSGSWEYIRFHIP 181
>gnl|CDD|133124 cd06593, GH31_xylosidase_YicI, YicI alpha-xylosidase is a glycosyl
hydrolase family 31 (GH31) enzyme that catalyzes the
release of an alpha-xylosyl residue from the
non-reducing end of alpha-xyloside substrates such as
alpha-xylosyl fluoride and isoprimeverose. YicI forms a
homohexamer (a trimer of dimers). All GH31 enzymes
cleave a terminal carbohydrate moiety from a substrate
that varies considerably in size, depending on the
enzyme, and may be either a starch or a glycoprotein.
The YicI family corresponds to subgroup 4 in the Ernst
et al classification of GH31 enzymes.
Length = 308
Score = 43.8 bits (104), Expect = 9e-07
Identities = 19/62 (30%), Positives = 29/62 (46%), Gaps = 1/62 (1%)
Query: 2 LQVMATFEGLLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLA 61
L A +E K + + RS +AGSQ++ W GD + + + SL LSL
Sbjct: 183 LYNKAVYE-ATKEVKGEGEAVVWARSAWAGSQKYPVHWGGDCESTFEGMAESLRGGLSLG 241
Query: 62 VS 63
+S
Sbjct: 242 LS 243
>gnl|CDD|236691 PRK10426, PRK10426, alpha-glucosidase; Provisional.
Length = 635
Score = 39.2 bits (92), Expect = 6e-05
Identities = 16/46 (34%), Positives = 23/46 (50%), Gaps = 4/46 (8%)
Query: 22 FILTRSGFAGSQRFG-AIWTGDNMAEWSH---LKISLPMCLSLAVS 63
R+G+ GSQ++ W GD +WS L +P LSL +S
Sbjct: 406 LFFMRAGYTGSQKYSTLFWAGDQNVDWSLDDGLASVVPAALSLGMS 451
>gnl|CDD|133125 cd06594, GH31_glucosidase_YihQ, YihQ is a bacterial
alpha-glucosidase with a conserved glycosyl hydrolase
family 31 (GH31) domain that catalyzes the release of an
alpha-glucosyl residue from the non-reducing end of
alpha-glucoside substrates such as alpha-glucosyl
fluoride. Orthologs of YihQ that have not yet been
functionally characterized are present in plants and
fungi. YihQ has sequence similarity to other GH31
enzymes such as CtsZ, a 6-alpha-glucosyltransferase from
Bacillus globisporus, and YicI, an alpha-xylosidase from
Echerichia coli. In bacteria, YihQ (along with YihO) is
important for bacterial O-antigen capsule assembly and
translocation.
Length = 317
Score = 35.0 bits (81), Expect = 0.002
Identities = 18/43 (41%), Positives = 23/43 (53%), Gaps = 4/43 (9%)
Query: 25 TRSGFAGSQRFGAI-WTGDNMAEWSH---LKISLPMCLSLAVS 63
RSGF GSQ++ + W GD M W LK +P LS +S
Sbjct: 212 MRSGFTGSQKYSTLFWAGDQMVSWDAHDGLKSVVPGALSSGLS 254
>gnl|CDD|133128 cd06597, GH31_transferase_CtsY, CtsY (cyclic
tetrasaccharide-synthesizing enzyme Y) is a bacterial
3-alpha-isomaltosyltransferase, first identified in
Arthrobacter globiformis, that produces cyclic
tetrasaccharides together with a closely related enzyme
CtsZ. CtsY and CtsZ both have a glycosyl hydrolase
family 31 (GH31) catalytic domain. All GH31 enzymes
cleave a terminal carbohydrate moiety from a substrate
that varies considerably in size, depending on the
enzyme, and may be either a starch or a glycoprotein.
Length = 340
Score = 32.5 bits (74), Expect = 0.011
Identities = 12/47 (25%), Positives = 23/47 (48%)
Query: 17 YQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKISLPMCLSLAVS 63
++ +R+G+ G+Q G W GD + + + S+ LS + S
Sbjct: 224 AKKDGVTFSRAGYTGAQAHGIFWAGDENSTFGAFRWSVFAGLSASAS 270
>gnl|CDD|236731 PRK10658, PRK10658, putative alpha-glucosidase; Provisional.
Length = 665
Score = 30.3 bits (69), Expect = 0.081
Identities = 17/44 (38%), Positives = 19/44 (43%), Gaps = 12/44 (27%)
Query: 26 RSGFAGSQRFGAIWTGDN------MAEWSHLKISLPMCLSLAVS 63
RS G Q+F W GD MAE SL LSL +S
Sbjct: 465 RSATVGGQQFPVHWGGDCYSNYESMAE------SLRGGLSLGLS 502
>gnl|CDD|241271 cd01238, PH_Btk, Bruton's tyrosine kinase pleckstrin homology
(PH) domain. Btk is a member of the Tec family of
cytoplasmic protein tyrosine kinases that includes BMX,
IL2-inducible T-cell kinase (Itk) and Tec. Btk plays a
role in the maturation of B cells. Tec proteins general
have an N-terminal PH domain, followed by a Tek
homology (TH) domain, a SH3 domain, a SH2 domain and a
kinase domain. The Btk PH domain binds
phosphatidylinositol 3,4,5-trisphosphate and responds
to signalling via phosphatidylinositol 3-kinase. The PH
domain is also involved in membrane anchoring which is
confirmed by the discovery of a mutation of a critical
arginine residue in the BTK PH domain. This results in
severe human immunodeficiency known as X-linked
agammaglobulinemia (XLA) in humans and a related
disorder is mice.PH domains have diverse functions, but
in general are involved in targeting proteins to the
appropriate cellular location or in the interaction
with a binding partner. They share little sequence
conservation, but all have a common fold, which is
electrostatically polarized. Less than 10% of PH
domains bind phosphoinositide phosphates (PIPs) with
high affinity and specificity. PH domains are
distinguished from other PIP-binding domains by their
specific high-affinity binding to PIPs with two vicinal
phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or
PtdIns(3,4,5)P3 which results in targeting some PH
domain proteins to the plasma membrane. A few display
strong specificity in lipid binding. Any specificity is
usually determined by loop regions or insertions in the
N-terminus of the domain, which are not conserved
across all PH domains. PH domains are found in cellular
signaling proteins such as serine/threonine kinase,
tyrosine kinases, regulators of G-proteins, endocytotic
GTPases, adaptors, as well as cytoskeletal associated
molecules and in lipid associated enzymes.
Length = 140
Score = 28.0 bits (63), Expect = 0.32
Identities = 11/29 (37%), Positives = 17/29 (58%), Gaps = 9/29 (31%)
Query: 11 LLKRS---------NYQQRPFILTRSGFA 30
L+KRS NY++R F+LT+S +
Sbjct: 5 LVKRSQGKKRFGPVNYKERWFVLTKSSLS 33
>gnl|CDD|133126 cd06595, GH31_xylosidase_XylS-like, This family represents an
uncharacterized glycosyl hydrolase family 31 (GH31)
enzyme found in bacteria and eukaryotes that is related
to the XylS xylosidase of Sulfolobus solfataricus.
Alpha-xylosidases catalyze the release of an
alpha-xylose residue from the non-reducing end of
alpha-xyloside substrates. Enzymes of the GH31 family
possess a wide range of different hydrolytic activities
including alpha-glucosidase (glucoamylase and
sucrase-isomaltase), alpha-xylosidase,
6-alpha-glucosyltransferase,
3-alpha-isomaltosyltransferase and alpha-1,4-glucan
lyase. All GH31 enzymes cleave a terminal carbohydrate
moiety from a substrate that varies considerably in
size, depending on the enzyme, and may be either a
starch or a glycoprotein.
Length = 292
Score = 28.5 bits (64), Expect = 0.33
Identities = 11/33 (33%), Positives = 18/33 (54%)
Query: 18 QQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHL 50
+RP I +R GS R+ ++GD + W+ L
Sbjct: 186 GRRPLIFSRWAGLGSHRYPIGFSGDTIISWASL 218
>gnl|CDD|200587 cd10965, CE4_IcaB_5s, Putative catalytic polysaccharide
deacetylase domain of bacterial intercellular adhesion
protein IcaB and similar proteins. The family is
represented by the surface-attached protein
intercellular adhesion protein IcaB
(Poly-beta-1,6-N-acetyl-D-glucosamine N-deacetylase, EC
3.5.1.-), encoded by Staphylococcus epidermidis icaB
gene from the icaABC gene cluster that is involved in
the synthesis of polysaccharide intercellular adhesin
(PIA), which is located mainly on the cell surface.
IcaB is a secreted, cell wall-associated protein that
plays a crucial role in exopolysaccharide modification
in bacterial biofilm formation. It catalyzes the
N-deacetylation of poly-beta-1,6-N-acetyl-D-glucosamine
(PNAG, also referred to as PIA), a biofilm adhesin
polysaccharide. IcaB shows high homology to the
N-terminal NodB homology domain of Escherichia coli
PgaB. At this point, they are classified in the same
family.
Length = 172
Score = 26.6 bits (59), Expect = 1.4
Identities = 12/42 (28%), Positives = 20/42 (47%), Gaps = 7/42 (16%)
Query: 11 LLKRSNYQQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHLKI 52
+LK+ PF + F + + G+ G N+A WS +K
Sbjct: 23 ILKKLKI---PF----TQFVITGQVGSTNFGLNLATWSQIKE 57
>gnl|CDD|176515 cd08573, GDPD_GDE1, Glycerophosphodiester phosphodiesterase domain
of mammalian glycerophosphodiester phosphodiesterase
GDE1 and similar proteins. This subfamily corresponds
to the glycerophosphodiester phosphodiesterase domain
(GDPD) present in mammalian GDE1 (also known as MIR16,
membrane interacting protein of RGS16) and their
metazoan homologs. GDE1 is widely expressed in mammalian
tissues, including the heart, brain, liver, and kidney.
It shows sequence homology to bacterial
glycerophosphodiester phosphodiesterases (GP-GDEs, EC
3.1.4.46), which catalyzes the hydrolysis of various
glycerophosphodiesters, and produce
sn-glycerol-3-phosphate (G3P) and the corresponding
alcohols. GDE1 has been characterized as GPI-GDE (EC
3.1.4.44) that selectively hydrolyzes extracellular
glycerophosphoinositol (GPI) to generate glycerol
phosphate and inositol. It functions as an integral
membrane-bound glycoprotein interacting with regulator
of G protein signaling protein RGS16, and is modulated
by G protein-coupled receptor (GPCR) signaling. In
addition, GDE1 may interact with PRA1 domain family,
member 2 (PRAF2, also known as JM4), which is an
interacting protein of the G protein-coupled chemokine
receptor CCR5. The catalytic activity, which is
dependent on the integrity of the GDPD domain, is
required for GDE1 cellular function.
Length = 258
Score = 26.1 bits (58), Expect = 2.3
Identities = 10/44 (22%), Positives = 15/44 (34%), Gaps = 6/44 (13%)
Query: 20 RPFILTRSGFAGSQRFGAIWT------GDNMAEWSHLKISLPMC 57
RP+ L+ + G R + W D + EWS
Sbjct: 161 RPWFLSYTDDEGGPRRKSGWKHFLYSMLDVILEWSLHSWLPYFL 204
>gnl|CDD|236885 PRK11246, PRK11246, hypothetical protein; Provisional.
Length = 218
Score = 25.8 bits (57), Expect = 2.5
Identities = 9/16 (56%), Positives = 12/16 (75%)
Query: 12 LKRSNYQQRPFILTRS 27
KR+ +QQ PF+LT S
Sbjct: 186 GKRTRWQQSPFLLTAS 201
>gnl|CDD|151110 pfam10574, UPF0552, Uncharacterized protein family UPF0552. This
family of proteins has no known function.
Length = 224
Score = 25.6 bits (56), Expect = 2.8
Identities = 11/25 (44%), Positives = 14/25 (56%)
Query: 24 LTRSGFAGSQRFGAIWTGDNMAEWS 48
+T+ FAG GA WT + MA S
Sbjct: 180 VTKCNFAGDSNAGASWTDNIMARKS 204
>gnl|CDD|235074 PRK02830, PRK02830, Na(+)-translocating NADH-quinone reductase
subunit E; Provisional.
Length = 202
Score = 25.3 bits (56), Expect = 4.0
Identities = 16/33 (48%), Positives = 19/33 (57%), Gaps = 4/33 (12%)
Query: 42 DNMAEWSHLKISLPMCLSLAVSEKKSANFVVGI 74
+NMA L L MC LAVS+K S F +GI
Sbjct: 15 ENMA----LAFFLGMCTFLAVSKKVSTAFGLGI 43
>gnl|CDD|239225 cd02895, GGTase-I, Geranylgeranyltransferase types I
(GGTase-I)-like proteins containing the protein
prenyltransferase (PTase) domain, beta subunit (alpha 6
- alpha 6 barrel fold). GGTase-I s are a subgroup of
the protein prenyltransferase family of lipid-modifying
enzymes PTases catalyze the carboxyl-terminal
lipidation of Ras, Rab, and several other cellular
signal transduction proteins, facilitating membrane
associations and specific protein-protein interactions.
Prenyltransferases employ a Zn2+ ion to alkylate a
thiol group catalyzing the formation of thioether
linkages between cysteine residues at or near the
C-terminus of protein acceptors and the C1 atom of
isoprenoid lipids (geranylgeranyl (20-carbon) in the
case of GGTase-I ). GGTase-I prenylates the cysteine in
the terminal sequence, "CAAX" when X is Leu or Phe.
Substrates for GTTase-I include the gamma subunit of
neural G-proteins and several Ras-related G-proteins.
PTases are heterodimeric with both alpha and beta
subunits required for catalytic activity.
Length = 307
Score = 24.5 bits (54), Expect = 6.8
Identities = 8/33 (24%), Positives = 12/33 (36%), Gaps = 1/33 (3%)
Query: 18 QQRPFILTRSGFAGSQRFGAIWTGDNMAEWSHL 50
Q L R GF GS + + + +L
Sbjct: 61 LQVLSNLPRGGFRGS-STLGLPGTASKYDTGNL 92
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
0.322 0.132 0.395
Gapped
Lambda K H
0.267 0.0604 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 3,949,020
Number of extensions: 292813
Number of successful extensions: 232
Number of sequences better than 10.0: 1
Number of HSP's gapped: 224
Number of HSP's successfully gapped: 29
Length of query: 81
Length of database: 10,937,602
Length adjustment: 50
Effective length of query: 31
Effective length of database: 8,719,902
Effective search space: 270316962
Effective search space used: 270316962
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 (22.0 bits)
S2: 53 (24.5 bits)