RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy11101
(157 letters)
>gnl|CDD|241395 cd13241, PH2_Kalirin_Trio_p63RhoGEF, p63RhoGEF pleckstrin homology
(PH) domain, repeat 2. The guanine nucleotide exchange
factor p63RhoGEF is an effector of the heterotrimeric G
protein, Galphaq and linking Galphaq-coupled receptors
(GPCRs) to the activation of RhoA. The Dbl(DH) and PH
domains of p63RhoGEF interact with the effector-binding
site and the C-terminal region of Galphaq and appear to
relieve autoinhibition of the catalytic DH domain by the
PH domain. Trio, Duet, and p63RhoGEF are shown to
constitute a family of Galphaq effectors that appear to
activate RhoA both in vitro and in intact cells. Dbs is
a guanine nucleotide exchange factor (GEF), which
contains spectrin repeats, a rhoGEF (DH) domain and a PH
domain. The Dbs PH domain participates in binding to
both the Cdc42 and RhoA GTPases. Trio plays an essential
role in regulating the actin cytoskeleton during axonal
guidance and branching. Trio is a multidomain signaling
protein that contains two RhoGEF(DH)-PH domains in
tandem. 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 = 179 bits (456), Expect = 5e-59
Identities = 77/157 (49%), Positives = 96/157 (61%), Gaps = 28/157 (17%)
Query: 4 VARLKGFDGKITAQGKLLMRGPLYCTETSVASSSSSNSRGKELQVFLFEQSMIFSEAVGK 63
V RL+GFDGKITAQGKLL++ L +E + +S+GKE +VFLFEQ +IFSE +GK
Sbjct: 1 VGRLQGFDGKITAQGKLLLQDTLLVSEPE----AGLSSKGKERRVFLFEQIIIFSEILGK 56
Query: 64 KTQFS-----------VNKMSVEEKVPEELTPAGSGGSRGGLSAYFLLKSIDPKKPALTF 112
KTQFS VNKMS+EE V + F L+S DP KP +F
Sbjct: 57 KTQFSNPGYIYKNSIKVNKMSLEENVDGDPCR-------------FALRSRDPNKPGESF 103
Query: 113 LCQAPTEESRSEWLRCLGLILQTQRDFLKAIQSPIAY 149
+ QAP+ E R EW+ + IL TQRDFL A+QSPIAY
Sbjct: 104 VLQAPSPEIRQEWVDTINQILDTQRDFLNALQSPIAY 140
>gnl|CDD|241394 cd13240, PH1_Kalirin_Trio_like, Triple functional domain pleckstrin
homology pleckstrin homology (PH) domain, repeat 1.
RhoGEFs, Kalirin and Trio, the mammalian homologs of
Drosophila Trio and Caenorhabditis elegans UNC-73
regulate a novel step in secretory granule maturation.
Their signaling modulates the extent to which regulated
cargo enter and remain in the regulated secretory
pathway. This allows for fine tuning of peptides
released by a single secretory cell type with impaired
signaling leading to pathological states. Trio plays an
essential role in regulating the actin cytoskeleton
during axonal guidance and branching. Kalirin and Trio
are encoded by separate genes in mammals and by a single
one in invertebrates. Kalirin and Trio share the same
complex multidomain structure and display several splice
variants. The longest Kalirin and Trio proteins have a
Sec14 domain, a stretch of spectrin repeats, a
RhoGEF(DH)/PH cassette (also called GEF1), an SH3
domain, a second RhoGEF(DH)/PH cassette (also called
GEF2), a second SH3 domain, Ig/FNIII domains, and a
kinase domain. The first RhoGEF(DH)/PH cassette
catalyzes exchange on Rac1 and RhoG while the second
RhoGEF(DH)/PH cassette is specific for RhoA. Kalirin and
Trio are closely related to p63RhoGEF and have PH
domains of similar function. 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.not conserved
across all PH domains. PH domains are found in cellular
signaling proteins such as serine/threonine kinases,
tyrosine kinases, regulators of G-proteins, endocytotic
GTPases, adaptors, cytoskeletal associated molecules,
and in lipid associated enzymes.
Length = 123
Score = 39.2 bits (92), Expect = 1e-04
Identities = 30/137 (21%), Positives = 58/137 (42%), Gaps = 27/137 (19%)
Query: 7 LKGFDGKITAQGKLLMRGPLYCTETSVASSSSSNSRGKELQVFLFEQSMIFSEAV----G 62
L+GFD + + G+++++ V +G+E VFLFE ++FS+ V G
Sbjct: 2 LEGFDESLESLGEVILQ-----DSFQVWDPKQLIRKGRERHVFLFELCLVFSKEVKDSNG 56
Query: 63 K-----KTQFSVNKMSVEEKVPEELTPAGSGGSRGGLSAYFLLKSIDPKKPALTFLCQAP 117
K K++ +++ V E + G F L + + +A
Sbjct: 57 KSKYIYKSKLMTSELGVTEHIE-------------GDPCKFALWTGRVPTSDNKIVLKAS 103
Query: 118 TEESRSEWLRCLGLILQ 134
+ E + EW++ L ++Q
Sbjct: 104 SLEVKQEWVKKLREVIQ 120
>gnl|CDD|214574 smart00233, PH, Pleckstrin homology domain. Domain commonly found
in eukaryotic signalling proteins. The domain family
possesses multiple functions including the abilities to
bind inositol phosphates, and various proteins. PH
domains have been found to possess inserted domains
(such as in PLC gamma, syntrophins) and to be inserted
within other domains. Mutations in Brutons tyrosine
kinase (Btk) within its PH domain cause X-linked
agammaglobulinaemia (XLA) in patients. Point mutations
cluster into the positively charged end of the molecule
around the predicted binding site for
phosphatidylinositol lipids.
Length = 102
Score = 37.5 bits (87), Expect = 4e-04
Identities = 23/116 (19%), Positives = 42/116 (36%), Gaps = 25/116 (21%)
Query: 20 LLMRGPLYCTETSVASSSSSNSRGKELQVFLFEQSMIFSEAVGKKTQ------FSVNKMS 73
++ G LY S K+ LF ++++ ++ K ++ +
Sbjct: 1 VIKEGWLYK------KSGGGKKSWKKRYFVLFNSTLLYYKSKKDKKSYKPKGSIDLSGCT 54
Query: 74 VEEKVPEELTPAGSGGSRGGLSAYFLLKSIDPKKPALTFLCQAPTEESRSEWLRCL 129
V E + + F +K+ D K T L QA +EE R +W+ L
Sbjct: 55 VREAPDPDSSKK---------PHCFEIKTSDRK----TLLLQAESEEEREKWVEAL 97
>gnl|CDD|241308 cd10572, PH_RhoGEF3_XPLN, Rho guanine nucleotide exchange factor 3
Pleckstrin homology (PH) domain. RhoGEF3/XPLN, a Rho
family GEF, preferentially stimulates guanine nucleotide
exchange on RhoA and RhoB, but not RhoC, RhoG, Rac1, or
Cdc42 in vitro. It also possesses transforming activity.
RhoGEF3/XPLN contains a tandem Dbl homology and PH
domain, but lacks homology with other known functional
domains or motifs. It is expressed in the brain,
skeletal muscle, heart, kidney, platelets, and
macrophage and neuronal cell lines. 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 = 143
Score = 36.9 bits (86), Expect = 0.001
Identities = 31/103 (30%), Positives = 47/103 (45%), Gaps = 14/103 (13%)
Query: 40 NSRGKELQVFLFEQSMIFSEAV--GKKTQFSVNK--MSVEEKVPEELTPAG---SGGS-R 91
N RG +L VFLFE ++ + V ++ + V + + V++ V E+L P G GGS R
Sbjct: 38 NKRGTKLHVFLFEDVLVLTRPVTRNEQLCYQVYRQPIPVQDLVLEDL-PDGEVRLGGSFR 96
Query: 92 GGLS-----AYFLLKSIDPKKPALTFLCQAPTEESRSEWLRCL 129
G S F S + QA E + +WL C+
Sbjct: 97 GAFSNNDKAKNFFRVSFKDGSKGQSHTLQANDEFDKQQWLNCI 139
>gnl|CDD|241261 cd01227, PH_Dbs, DBL's big sister protein pleckstrin homology (PH)
domain. Dbs (also called MCF2-transforming
sequence-like protein 2) is a guanine nucleotide
exchange factor (GEF), which contains spectrin repeats,
a rhoGEF (DH) domain and a PH domain. The Dbs PH domain
participates in binding to both the Cdc42 and RhoA
GTPases. 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 = 132
Score = 34.9 bits (80), Expect = 0.006
Identities = 30/139 (21%), Positives = 61/139 (43%), Gaps = 21/139 (15%)
Query: 9 GFDGKITAQGKLLMRGPL--YCTETSVASSSSSNSRGKELQ--VFLFEQSMIFSEAVGKK 64
G++G ++ GKLLM+G + + +R K +Q +FL+E++++F + +
Sbjct: 4 GYEGNLSDLGKLLMQGSFNVWTEHKKGHNKVKKLARFKPMQRHLFLYEKAVLFCKKREEN 63
Query: 65 TQFSVNKMSVEEKVPEELTPAGSGGSRGGLSAYFLLKSIDPKKPAL-------TFLCQAP 117
+ S K +++ G + G D KK + ++ QAP
Sbjct: 64 GEGYEKAPSYSYKNSLKMSAVGITENVKG----------DNKKFEIWYNGREEVYIIQAP 113
Query: 118 TEESRSEWLRCLGLILQTQ 136
T E ++ W+ + +L +Q
Sbjct: 114 TPEIKAAWVNEIRKVLTSQ 132
>gnl|CDD|215766 pfam00169, PH, PH domain. PH stands for pleckstrin homology.
Length = 101
Score = 32.1 bits (73), Expect = 0.032
Identities = 18/94 (19%), Positives = 37/94 (39%), Gaps = 8/94 (8%)
Query: 36 SSSSNSRGKELQVFLFEQSMIFSEAVGKKTQFSVNKMSVEEKVPEELTPAGSGGSRGGLS 95
S K+ LF+ +++ + K + + + ++ G
Sbjct: 11 GSGGRKSWKKRYFVLFDGVLLYYKDSKKSSSRPKGSIPLSGCQVTKVPD----SEDGKRK 66
Query: 96 AYFLLKSIDPKKPALTFLCQAPTEESRSEWLRCL 129
F +++ D + TFL QA +EE R EW++ +
Sbjct: 67 NCFEIRTGDRE----TFLLQAESEEERKEWVKAI 96
>gnl|CDD|241378 cd13224, PH_Net1, Neuroepithelial cell transforming 1 Pleckstrin
homology (PH) domain. Net1 (also called ArhGEF8) is
part of the family of Rho guanine nucleotide exchange
factors. Members of this family activate Rho proteins by
catalyzing the exchange of GDP for GTP. The protein
encoded by this gene interacts with RhoA within the cell
nucleus and may play a role in repairing DNA damage
after ionizing radiation. Net1 binds to caspase
activation and recruitment domain (CARD)- and
membrane-associated guanylate kinase-like
domain-containing (CARMA) proteins and regulates nuclear
factor kB activation. Net1 contains a RhoGEF domain
N-terminal to a single PH domain. PH domains have
diverse functions, but in generally 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 = 119
Score = 31.0 bits (70), Expect = 0.095
Identities = 28/103 (27%), Positives = 47/103 (45%), Gaps = 14/103 (13%)
Query: 40 NSRGKELQVFLFEQSMIFSEAVGKKTQ--FSVNK--MSVEEKVPEELTPAG--SGGS-RG 92
N G +L VFLF+ ++ + V + + + V + + V+E + E+L GGS RG
Sbjct: 12 NKSGHKLHVFLFQDVLVLTRPVTRNERQCYQVYRQPIPVQELLLEDLQDGDVRMGGSFRG 71
Query: 93 GLS------AYFLLKSIDPKKPALTFLCQAPTEESRSEWLRCL 129
S F ++ DP P + QA + +WL C+
Sbjct: 72 AFSNSEKAKNIFRVRFKDP-SPGQSHTLQANDVFHKQQWLNCI 113
>gnl|CDD|241231 cd00821, PH, Pleckstrin homology (PH) domain. 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 = 92
Score = 28.9 bits (64), Expect = 0.43
Identities = 18/93 (19%), Positives = 35/93 (37%), Gaps = 9/93 (9%)
Query: 36 SSSSNSRGKELQVFLFEQSMIFSEAVGKKTQFSVNKMSVEEKVPEELTPAGSGGSRGGLS 95
K+ LF+ +++ ++ ++ + + + + EL G
Sbjct: 9 GGKGLKSWKKRWFVLFDDVLLYYKSKKDSSKKPKGLIPLSDGLEVELVS------SSGKP 62
Query: 96 AYFLLKSIDPKKPALTFLCQAPTEESRSEWLRC 128
F L + D + T+ QA +EE R EWL
Sbjct: 63 NCFELVTPDRGR---TYYLQAESEEEREEWLEA 92
>gnl|CDD|234018 TIGR02799, thio_ybgC, tol-pal system-associated acyl-CoA
thioesterase. The tol-pal system consists of five
critical genes. Inner membrane proteins TolQ and TolR
convert protomotive force to energy that is transduced
through TolA to an outer membrane complex of TolB and
Pal. The system is known to be required to maintain
outer membrane integrity. In a system with several
homologous parts, ExbB and ExbD transduces energy
through TonB to a variety of outer membrane proteins,
many of which are siderophore receptors. The tol-pal
system therefore may also be involved in transport. This
family consists of a protein nearly always found in
operons with the genes of the tol-pal system. The
significance of this thioesterase to the tol-pal system
is unclear, but either of two observations may be
relevant. First, Pal, or peptidoglycan-associated
lipoprotein, has a conserved N-terminal cleavage and
acylation that makes it a lipoprotein. Second, the
tol-pal system is implicated not only in the import of
certain organics but also in the maintenance of outer
membrane integrity (by an unknown mechanism).
Length = 126
Score = 28.7 bits (65), Expect = 0.75
Identities = 8/17 (47%), Positives = 10/17 (58%)
Query: 119 EESRSEWLRCLGLILQT 135
E +R+EWLR LG
Sbjct: 28 ERARTEWLRALGFEQSA 44
>gnl|CDD|241396 cd13242, PH_puratrophin-1, Puratrophin-1 pleckstrin homology (PH)
domain. Puratrophin-1 (also called Purkinje cell
atrophy-associated protein 1 or PLEKHG4/Pleckstrin
homology domain-containing family G member 4) contains
a spectrin repeat, a RhoGEF (DH) domain, and a PH
domain. It is thought to function in intracellular
signaling and cytoskeleton dynamics at the Golgi.
Puratrophin-1 is expressed in kidney, Leydig cells in
the testis, epithelial cells in the prostate gland and
Langerhans islet in the pancreas. A single nucleotide
substitution in the puratrophin-1 gene were once
thought to result in autosomal dominant cerebellar
ataxia (ADCA), but now it has been demonstrated that
this ataxia is a result of defects in the BEAN gene.
Puratrophin contains a domain architecture similar to
that of Dbl family members Dbs and Trio. Dbs is a
guanine nucleotide exchange factor (GEF), which
contains spectrin repeats, a RhoGEF (DH) domain and a
PH domain. The Dbs PH domain participates in binding to
both the Cdc42 and RhoA GTPases. Trio plays an
essential role in regulating the actin cytoskeleton
during axonal guidance and branching. Trio is a
multidomain signaling protein that contains two
RhoGEF(DH)-PH domains in tandem. 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 = 136
Score = 28.8 bits (65), Expect = 0.83
Identities = 18/60 (30%), Positives = 27/60 (45%), Gaps = 13/60 (21%)
Query: 2 MDVARLKGFDGKITAQGKLLMRGPLYCTETSVASSSSSNSRGKEL-QVFLFEQSMIFSEA 60
MD ++G D + QG+LL + + R K L VFLFE ++FS+
Sbjct: 13 MDA--IRGCDVNLKEQGQLLRQDEFLVWQ----------GRKKSLRHVFLFEDLILFSKP 60
>gnl|CDD|241393 cd13239, PH_Obscurin, Obscurin pleckstrin homology (PH) domain.
Obscurin (also called Obscurin-RhoGEF; Obscurin-myosin
light chain kinase/Obscurin-MLCK) is a giant muscle
protein that is concentrated at the peripheries of
Z-disks and M-lines. It binds small ankyrin I, a
component of the sarcoplasmic reticulum (SR) membrane.
It is associated with the contractile apparatus through
binding with titin and sarcomeric myosin. It plays
important roles in the organization and assembly of the
myofibril and the SR. Obscurin has been observed as
alternatively-spliced isoforms. The major isoform in
sleletal muscle, approximately 800 kDa in size, is
composed of many adhesion modules and signaling
domains. It harbors 49 Ig and 2 FNIII repeats at the
N-terminues, a complex middle region with additional Ig
domains, an IQ motif, and a conserved SH3 domain near
RhoGEF and PH domains, and a non-modular C-terminus
with phosphorylation motifs. The obscurin gene also
encodes two kinase domains, which are not part of the
800 kDa form of the protein, but is part of smaller
spliced products that present in heart muscle. 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 = 125
Score = 28.2 bits (63), Expect = 0.98
Identities = 12/51 (23%), Positives = 25/51 (49%), Gaps = 2/51 (3%)
Query: 7 LKGFDGKITAQGKLLMRGPLYCTETSVASSSSSNSRGKELQVFLFEQSMIF 57
++ + G + A G+ + +G E A ++S+G VFLF+ ++
Sbjct: 2 IENYPGNLEALGEPIRQGHFTVWEG--APGVRTSSKGHHRHVFLFKNCIVI 50
>gnl|CDD|241409 cd13255, PH_TAAP2-like, Tandem PH-domain-containing protein 2
Pleckstrin homology (PH) domain. The binding of TAPP2
(also called PLEKHA2) adaptors to PtdIns(3,4)P(2), but
not PI(3,4, 5)P3, function as negative regulators of
insulin and PI3K signalling pathways (i.e.
TAPP/utrophin/syntrophin complex). TAPP2 contains two
sequential PH domains in which the C-terminal PH domain
specifically binds PtdIns(3,4)P2 with high affinity. The
N-terminal PH domain does not interact with any
phosphoinositide tested. They also contain a C-terminal
PDZ-binding motif that interacts with several
PDZ-binding proteins, including PTPN13 (known previously
as PTPL1 or FAP-1) as well as the scaffolding proteins
MUPP1 (multiple PDZ-domain-containing protein 1),
syntrophin and utrophin. The members here are most
sequence similar to TAPP2 proteins, but may not be
actual TAPP2 proteins. 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 = 110
Score = 28.1 bits (63), Expect = 1.0
Identities = 10/31 (32%), Positives = 14/31 (45%)
Query: 108 PALTFLCQAPTEESRSEWLRCLGLILQTQRD 138
PA TF QA ++ W+ + L Q R
Sbjct: 74 PARTFYVQADSKAEMESWISAINLARQALRA 104
>gnl|CDD|241282 cd01251, PH2_ADAP, ArfGAP with dual PH domains Pleckstrin homology
(PH) domain, repeat 2. ADAP (also called centaurin
alpha) is a phophatidlyinositide binding protein
consisting of an N-terminal ArfGAP domain and two PH
domains. In response to growth factor activation, PI3K
phosphorylates phosphatidylinositol 4,5-bisphosphate to
phosphatidylinositol 3,4,5-trisphosphate. Centaurin
alpha 1 is recruited to the plasma membrane following
growth factor stimulation by specific binding of its PH
domain to phosphatidylinositol 3,4,5-trisphosphate.
Centaurin alpha 2 is constitutively bound to the plasma
membrane since it binds phosphatidylinositol
4,5-bisphosphate and phosphatidylinositol
3,4,5-trisphosphate with equal affinity. This cd
contains the second PH domain repeat. 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 = 105
Score = 27.6 bits (62), Expect = 1.3
Identities = 11/27 (40%), Positives = 16/27 (59%)
Query: 108 PALTFLCQAPTEESRSEWLRCLGLILQ 134
P TF+ A TEE R EW+ + +L+
Sbjct: 78 PDRTFVLSAETEEERREWITAIQKVLE 104
>gnl|CDD|220674 pfam10282, Lactonase, Lactonase, 7-bladed beta-propeller. This
entry contains bacterial 6-phosphogluconolactonases
(6PGL)YbhE-type (EC:3.1.1.31) which hydrolyse
6-phosphogluconolactone to 6-phosphogluconate. The entry
also contains the fungal muconate lactonising enzyme
carboxy-cis,cis-muconate cyclase (EC:5.5.1.5) and
muconate cycloisomerase (EC:5.5.1.1), which convert
cis,cis-muconates to muconolactones and vice versa as
part of the microbial beta-ketoadipate pathway.
Structures of proteins in this family have revealed a
7-bladed beta-propeller fold.
Length = 344
Score = 28.7 bits (65), Expect = 1.4
Identities = 14/31 (45%), Positives = 16/31 (51%), Gaps = 4/31 (12%)
Query: 89 GSRGGLSAYFLLKSIDPKKPALTFLCQAPTE 119
G GG+SA+ IDP LT L Q PT
Sbjct: 58 GEDGGVSAF----RIDPDTGKLTLLNQVPTG 84
>gnl|CDD|224366 COG1449, COG1449, Alpha-amylase/alpha-mannosidase [Carbohydrate
transport and metabolism].
Length = 615
Score = 28.6 bits (64), Expect = 1.5
Identities = 13/48 (27%), Positives = 18/48 (37%), Gaps = 3/48 (6%)
Query: 112 FLCQAPTEESRSEWLRCLG---LILQTQRDFLKAIQSPIAYQKELSKD 156
L + +E E LR L I T+ DF +AI + S
Sbjct: 118 GLPLSFWQEENVEILRRLLNEAWIPATRIDFDRAIADTNLFIPNYSLS 165
>gnl|CDD|241423 cd13269, PH_alsin, Alsin Pleckstrin homology (PH) domain. The ALS2
gene encodes alsin, a GEF, that has dual specificity for
Rac1 and Rab5 GTPases. Alsin mutations in the form of
truncated proteins are responsible for motor function
disorders including juvenile-onset amyotrophic lateral
sclerosis, familial juvenile primary lateral sclerosis,
and infantile-onset ascending hereditary spastic
paralysis. The alsin protein is widely expressed in the
developing CNS including neurons of the cerebral cortex,
brain stem, spinal cord, and cerebellum. Alsin contains
a regulator of chromosome condensation 1 (RCC1) domain,
a Rho guanine nucleotide exchanging factor (RhoGEF)
domain, a PH domain, a Membrane Occupation and
Recognition Nexus (MORN), a vacuolar protein sorting 9
(Vps9) domain, and a Dbl homology (DH) domain. Alsin
interacts with Rab5 through its Vps9 domain and through
this interaction modulates early endosome fusion and
trafficking. The GEF activity of alsin towards Rab5 is
regulated by Rac1 function. The GEF activity of alsin
for Rac1 occurs via its DH domain and this interaction
plays a role in promoting spinal motor neuron survival
via multiple Rac-dependent signaling pathways. 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 = 106
Score = 27.0 bits (60), Expect = 2.7
Identities = 8/22 (36%), Positives = 13/22 (59%)
Query: 108 PALTFLCQAPTEESRSEWLRCL 129
P +F A T + ++EWLR +
Sbjct: 75 PEESFTLVASTPQEKAEWLRAI 96
>gnl|CDD|241404 cd13250, PH_ACAP, ArfGAP with coiled-coil, ankyrin repeat and PH
domains Pleckstrin homology (PH) domain. ACAP (also
called centaurin beta) functions both as a Rab35
effector and as an Arf6-GTPase-activating protein (GAP)
by which it controls actin remodeling and membrane
trafficking. ACAP contain an NH2-terminal
bin/amphiphysin/Rvs (BAR) domain, a phospholipid-binding
domain, a PH domain, a GAP domain, and four ankyrin
repeats. The AZAPs constitute a family of Arf GAPs that
are characterized by an NH2-terminal pleckstrin homology
(PH) domain and a central Arf GAP domain followed by two
or more ankyrin repeats. On the basis of sequence and
domain organization, the AZAP family is further
subdivided into four subfamilies: 1) the ACAPs contain
an NH2-terminal bin/amphiphysin/Rvs (BAR) domain (a
phospholipid-binding domain that is thought to sense
membrane curvature), a single PH domain followed by the
GAP domain, and four ankyrin repeats; 2) the ASAPs also
contain an NH2-terminal BAR domain, the tandem PH
domain/GAP domain, three ankyrin repeats, two
proline-rich regions, and a COOH-terminal Src homology 3
domain; 3) the AGAPs contain an NH2-terminal GTPase-like
domain (GLD), a split PH domain, and the GAP domain
followed by four ankyrin repeats; and 4) the ARAPs
contain both an Arf GAP domain and a Rho GAP domain, as
well as an NH2-terminal sterile-a motif (SAM), a
proline-rich region, a GTPase-binding domain, and five
PH domains. PMID 18003747 and 19055940 Centaurin can
bind to phosphatidlyinositol (3,4,5)P3. 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 = 98
Score = 26.0 bits (58), Expect = 3.9
Identities = 8/27 (29%), Positives = 16/27 (59%), Gaps = 3/27 (11%)
Query: 103 IDPKKPALTFLCQAPTEESRSEWLRCL 129
+ P K +++ QA +EE R W++ +
Sbjct: 66 VSPTK---SYMLQAESEEDRQAWIQAI 89
>gnl|CDD|241414 cd13260, PH_RASA1, RAS p21 protein activator (GTPase activating
protein) 1 Pleckstrin homology (PH) domain. RASA1 (also
called RasGap1 or p120) is a member of the RasGAP family
of GTPase-activating proteins. RASA1 contains N-terminal
SH2-SH3-SH2 domains, followed by two C2 domains, a PH
domain, a RasGAP domain, and a BTK domain. Splice
variants lack the N-terminal domains. It is a cytosolic
vertebrate protein that acts as a suppressor of RAS via
its C-terminal GAP domain function, enhancing the weak
intrinsic GTPase activity of RAS proteins resulting in
the inactive GDP-bound form of RAS, allowing control of
cellular proliferation and differentiation.
Additionally, it is involved in mitogenic signal
transmission towards downstream interacting partners
through its N-terminal SH2-SH3-SH2 domains. RASA1
interacts with a number of proteins including: G3BP1,
SOCS3, ANXA6, Huntingtin, KHDRBS1, Src, EPHB3, EPH
receptor B2, Insulin-like growth factor 1 receptor,
PTK2B, DOK1, PDGFRB, HCK, Caveolin 2, DNAJA3, HRAS,
GNB2L1 and NCK1. 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 = 103
Score = 26.1 bits (58), Expect = 4.1
Identities = 7/19 (36%), Positives = 11/19 (57%), Gaps = 1/19 (5%)
Query: 111 TFLCQAPTEESRSEWLRCL 129
+LC A T E +W++ L
Sbjct: 82 YYLC-ADTAELAQDWMKAL 99
>gnl|CDD|227434 COG5103, CDC39, Cell division control protein, negative regulator of
transcription [Cell division and chromosome partitioning
/ Transcription].
Length = 2005
Score = 26.9 bits (59), Expect = 7.1
Identities = 12/53 (22%), Positives = 20/53 (37%), Gaps = 3/53 (5%)
Query: 14 ITAQGKLLMRGPLYCTETSVASSSSSNSRGKELQVFLFEQSMIFSEAVGKKTQ 66
+TA+ + CT +A SS + + +M+ A G K Q
Sbjct: 1443 VTAEVPICTVYDFICTLEMLAGSSDPKVKDFFQK---ISNTMMHIVAKGNKQQ 1492
>gnl|CDD|241296 cd01265, PH_TBC1D2A, TBC1 domain family member 2A pleckstrin
homology (PH) domain. TBC1D2A (also called
PARIS-1/Prostate antigen recognized and identified by
SEREX 1 and ARMUS) contains a PH domain and a TBC-type
GTPase catalytic domain. TBC1D2A integrates signaling
between Arf6, Rac1, and Rab7 during junction
disassembly. Activated Rac1 recruits TBC1D2A to locally
inactivate Rab7 via its C-terminal TBC/RabGAP domain and
facilitate E-cadherin degradation in lysosomes. The
TBC1D2A PH domain mediates localization at cell-cell
contacts and coprecipitates with cadherin complexes. 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 = 101
Score = 25.3 bits (56), Expect = 8.1
Identities = 7/31 (22%), Positives = 15/31 (48%), Gaps = 4/31 (12%)
Query: 108 PALTFLCQAPTEESRSEWLRCLGLILQTQRD 138
P ++ +A ++ WL+ LQ++R
Sbjct: 70 PGRVYILKASDRQAMLYWLQ----ELQSKRR 96
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
0.315 0.130 0.363
Gapped
Lambda K H
0.267 0.0618 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,506,080
Number of extensions: 630385
Number of successful extensions: 512
Number of sequences better than 10.0: 1
Number of HSP's gapped: 504
Number of HSP's successfully gapped: 26
Length of query: 157
Length of database: 10,937,602
Length adjustment: 89
Effective length of query: 68
Effective length of database: 6,990,096
Effective search space: 475326528
Effective search space used: 475326528
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.6 bits)
S2: 55 (25.2 bits)