RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy6613
(510 letters)
>gnl|CDD|212797 cd11863, SH3_CACNB, Src Homology 3 domain of Voltage-dependent
L-type calcium channel subunit beta. Voltage-dependent
calcium channels (Ca(V)s) are multi-protein complexes
that regulate the entry of calcium into cells. They
impact muscle contraction, neuronal migration, hormone
and neurotransmitter release, and the activation of
calcium-dependent signaling pathways. They are composed
of four subunits: alpha1, alpha2delta, beta, and gamma.
The beta subunit is a soluble and intracellular protein
that interacts with the transmembrane alpha1 subunit. It
facilitates the trafficking and proper localization of
the alpha1 subunit to the cellular plasma membrane.
Vertebrates contain four different beta subunits from
distinct genes (beta1-4); each exists as multiple splice
variants. All are expressed in the brain while other
tissues show more specific expression patterns. The beta
subunits show similarity to MAGUK (membrane-associated
guanylate kinase) proteins in that they contain SH3 and
inactive guanylate kinase (GuK) domains; however, they
do not appear to contain a PDZ domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 62
Score = 135 bits (342), Expect = 5e-39
Identities = 48/62 (77%), Positives = 55/62 (88%)
Query: 48 FAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPSP 107
FAVRTNV YDGS+DDDSPV GYAVSF+ +FLHIKEKY+++WWIGRLVKEG + GFIPSP
Sbjct: 1 FAVRTNVGYDGSLDDDSPVPGYAVSFEAKDFLHIKEKYNNDWWIGRLVKEGCDIGFIPSP 60
Query: 108 VK 109
K
Sbjct: 61 AK 62
>gnl|CDD|201353 pfam00625, Guanylate_kin, Guanylate kinase.
Length = 183
Score = 137 bits (346), Expect = 6e-38
Identities = 47/168 (27%), Positives = 74/168 (44%), Gaps = 16/168 (9%)
Query: 138 ALSSDAPSPGMIIITRVTADISL-----------AKRSLMSNPSKRAIMERSNSRSSVLT 186
AL + P ++ T +K + ++ S +E + +
Sbjct: 21 ALLDEYPEKFGYSVSHTTRPPRPGEVDGKDYHFVSKEEMENDISANEFLEYAEFNGNYYG 80
Query: 187 EVQTEIERVYELASTLQLVVLDCDTINHPSQLAKTNLSPCIVYLKISSPKVLQRLIKSRG 246
+ IE++ E +LD D I QL K LSP V++K S KVLQR +K RG
Sbjct: 81 TSKEAIEQIAESGKI---CILDVD-IQGVKQLRKAELSPISVFIKPPSLKVLQRRLKRRG 136
Query: 247 KSQTRHLNVQMVAAEKLAQCPQEMFDVILDENQLEDACEHIAEYLEAY 294
Q +N +M AAE+ Q +FD I+ + L++A + + E LEA
Sbjct: 137 TEQEEKINKRMEAAEQEFQHY-ALFDYIIVNDDLDEAYKKLKEILEAE 183
Score = 74.7 bits (184), Expect = 1e-15
Identities = 20/98 (20%), Positives = 36/98 (36%), Gaps = 16/98 (16%)
Query: 414 SMRPVVLVGPSLKGYEVTDMMQKALFDFLKHRFEGRIIITRVTADISL-----------A 462
RP+VL GPS G ++KAL D +F ++ T +
Sbjct: 1 QRRPIVLSGPSGVG---KSHIKKALLDEYPEKF--GYSVSHTTRPPRPGEVDGKDYHFVS 55
Query: 463 KRSLMSNPSKRAIMERSNSRSSVLTEVQTEIERVYELA 500
K + ++ S +E + + + IE++ E
Sbjct: 56 KEEMENDISANEFLEYAEFNGNYYGTSKEAIEQIAESG 93
>gnl|CDD|212976 cd12043, SH3_CACNB4, Src Homology 3 domain of Voltage-dependent
L-type calcium channel subunit beta4. The beta4 subunit
of voltage-dependent calcium channels (Ca(V)s) is one of
four beta subunits present in vertebrates. It is the
only beta subunit expressed in the cochlea and is highly
expressed in the brain, predominantly in the cerebellum.
Ca(V)s are multi-protein complexes that regulate the
entry of calcium into cells. They impact muscle
contraction, neuronal migration, hormone and
neurotransmitter release, and the activation of
calcium-dependent signaling pathways. They are composed
of four subunits: alpha1, alpha2delta, beta, and gamma.
The beta subunit is a soluble and intracellular protein
that interacts with the transmembrane alpha1 subunit. It
facilitates the trafficking and proper localization of
the alpha1 subunit to the cellular plasma membrane.
Vertebrates contain four different beta subunits from
distinct genes (beta1-4); each exists as multiple splice
variants. All are expressed in the brain while other
tissues show more specific expression patterns. The beta
subunits show similarity to MAGUK (membrane-associated
guanylate kinase) proteins in that they contain SH3 and
inactive guanylate kinase (GuK) domains; however, they
do not appear to contain a PDZ domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 68
Score = 113 bits (284), Expect = 8e-31
Identities = 48/68 (70%), Positives = 58/68 (85%)
Query: 44 KNVAFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGF 103
K VAFAVRTNV Y G++D+D PV G A+SFD +FLHIKEKY+++WWIGRLVKEG E GF
Sbjct: 1 KPVAFAVRTNVSYCGALDEDVPVPGTAISFDAKDFLHIKEKYNNDWWIGRLVKEGCEIGF 60
Query: 104 IPSPVKLE 111
IPSP++LE
Sbjct: 61 IPSPLRLE 68
>gnl|CDD|212974 cd12041, SH3_CACNB1, Src Homology 3 domain of Voltage-dependent
L-type calcium channel subunit beta-1. The beta1
subunit of voltage-dependent calcium channels (Ca(V)s)
is one of four beta subunits present in vertebrates. It
is the only beta subunit, as the beta1a variant,
expressed in skeletal muscle; the beta1b variant is also
widely expressed in other tissues including the heart
and brain. Knockout of the beta1 gene in mice results in
embryonic lethality, demonstrating its importance in
development. Ca(V)s are multi-protein complexes that
regulate the entry of calcium into cells. They impact
muscle contraction, neuronal migration, hormone and
neurotransmitter release, and the activation of
calcium-dependent signaling pathways. They are composed
of four subunits: alpha1, alpha2delta, beta, and gamma.
The beta subunit is a soluble and intracellular protein
that interacts with the transmembrane alpha1 subunit. It
facilitates the trafficking and proper localization of
the alpha1 subunit to the cellular plasma membrane.
Vertebrates contain four different beta subunits from
distinct genes (beta1-4); each exists as multiple splice
variants. All are expressed in the brain while other
tissues show more specific expression patterns. The beta
subunits show similarity to MAGUK (membrane-associated
guanylate kinase) proteins in that they contain SH3 and
inactive guanylate kinase (GuK) domains; however, they
do not appear to contain a PDZ domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 68
Score = 110 bits (277), Expect = 1e-29
Identities = 49/68 (72%), Positives = 56/68 (82%)
Query: 44 KNVAFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGF 103
K VAFAVRTNV Y+ S DD PV G A+SF+ +FLHIKEKY+++WWIGRLVKEG E GF
Sbjct: 1 KPVAFAVRTNVGYNPSPGDDVPVQGMAISFEPKDFLHIKEKYNNDWWIGRLVKEGCEVGF 60
Query: 104 IPSPVKLE 111
IPSPVKLE
Sbjct: 61 IPSPVKLE 68
>gnl|CDD|212973 cd12040, SH3_CACNB2, Src Homology 3 domain of Voltage-dependent
L-type calcium channel subunit beta2. The beta2 subunit
of voltage-dependent calcium channels (Ca(V)s) is one of
four beta subunits present in vertebrates. It is
expressed in the heart and is present in specific
neuronal cells including cerebellar Purkinje cells,
hippocampal pyramidal neurons, and photoreceptors.
Knockout of the beta2 gene in mice results in embryonic
lethality, demonstrating its importance in development.
Ca(V)s are multi-protein complexes that regulate the
entry of calcium into cells. They impact muscle
contraction, neuronal migration, hormone and
neurotransmitter release, and the activation of
calcium-dependent signaling pathways. They are composed
of four subunits: alpha1, alpha2delta, beta, and gamma.
The beta subunit is a soluble and intracellular protein
that interacts with the transmembrane alpha1 subunit. It
facilitates the trafficking and proper localization of
the alpha1 subunit to the cellular plasma membrane.
Vertebrates contain four different beta subunits from
distinct genes (beta1-4); each exists as multiple splice
variants. All are expressed in the brain while other
tissues show more specific expression patterns. The beta
subunits show similarity to MAGUK (membrane-associated
guanylate kinase) proteins in that they contain SH3 and
inactive guanylate kinase (GuK) domains; however, they
do not appear to contain a PDZ domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 69
Score = 108 bits (271), Expect = 7e-29
Identities = 46/69 (66%), Positives = 56/69 (81%)
Query: 43 AKNVAFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECG 102
K VAFAVRTNV Y + +DD PV G A+SF+ +FLH+KEK++++WWIGRLVKEG E G
Sbjct: 1 TKPVAFAVRTNVGYSAAHEDDVPVPGMAISFEAKDFLHVKEKFNNDWWIGRLVKEGCEIG 60
Query: 103 FIPSPVKLE 111
FIPSPVKLE
Sbjct: 61 FIPSPVKLE 69
>gnl|CDD|212975 cd12042, SH3_CACNB3, Src Homology 3 domain of Voltage-dependent
L-type calcium channel subunit beta3. The beta3 subunit
of voltage-dependent calcium channels (Ca(V)s) is one of
four beta subunits present in vertebrates. It is the
main beta subunit present in smooth muscles and is
strongly expressed in the brain; it is predominant in
the olfactory bulb, cortex, and hippocampus. It may play
a role in regulating the NMDAR (N-methyl-d-aspartate
receptor) activity in the hippocampus and thus,
activity-dependent synaptic plasticity and cognitive
behaviors. Ca(V)s are multi-protein complexes that
regulate the entry of calcium into cells. They impact
muscle contraction, neuronal migration, hormone and
neurotransmitter release, and the activation of
calcium-dependent signaling pathways. They are composed
of four subunits: alpha1, alpha2delta, beta, and gamma.
The beta subunit is a soluble and intracellular protein
that interacts with the transmembrane alpha1 subunit. It
facilitates the trafficking and proper localization of
the alpha1 subunit to the cellular plasma membrane.
Vertebrates contain four different beta subunits from
distinct genes (beta1-4); each exists as multiple splice
variants. All are expressed in the brain while other
tissues show more specific expression patterns. The beta
subunits show similarity to MAGUK (membrane-associated
guanylate kinase) proteins in that they contain SH3 and
inactive guanylate kinase (GuK) domains; however, they
do not appear to contain a PDZ domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 68
Score = 102 bits (256), Expect = 6e-27
Identities = 43/68 (63%), Positives = 55/68 (80%)
Query: 44 KNVAFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGF 103
K VAFAVRTNV Y G++D++ PV G A++F+ +FLHIKEKY ++WWIGRLVKEG + F
Sbjct: 1 KPVAFAVRTNVSYCGALDEECPVQGAAINFEAKDFLHIKEKYSNDWWIGRLVKEGGDIAF 60
Query: 104 IPSPVKLE 111
IPSP +LE
Sbjct: 61 IPSPQRLE 68
>gnl|CDD|214504 smart00072, GuKc, Guanylate kinase homologues. Active enzymes
catalyze ATP-dependent phosphorylation of GMP to GDP.
Structure resembles that of adenylate kinase. So-called
membrane-associated guanylate kinase homologues (MAGUKs)
do not possess guanylate kinase activities; instead at
least some possess protein-binding functions.
Length = 174
Score = 94.7 bits (236), Expect = 1e-22
Identities = 41/181 (22%), Positives = 70/181 (38%), Gaps = 15/181 (8%)
Query: 115 LQQTQARNPKLYSSKTSSTSNLGALSSDAPSPGMIIITRVTADISLAKRSLMSNPSKRAI 174
L + P + S T+ P PG D + + K +
Sbjct: 9 LAELIQEIPDAFERVVSHTT-------RPPRPG----EVNGVDYHFVSKEEFEDDIKSGL 57
Query: 175 MERSNSRSSVLTEVQTEIERVYELASTLQLVVLDCDTINHPSQLAKTNLSPCIVYLKISS 234
T E + ++A + +LD D QL K L P ++++ S
Sbjct: 58 FLEWGEYEGNY--YGTSKETIRQVAEKGKHCLLDID-PQGVKQLRKAQLYPIVIFIAPPS 114
Query: 235 PKVLQRLIKSRGKSQTRHLNVQMVAAEKLAQCPQEMFDVILDENQLEDACEHIAEYLEAY 294
+ L+R ++ RG + + ++ AA+K AQ +FD ++ + LEDA E + E LEA
Sbjct: 115 SEELERRLRQRGTETSERIQKRLAAAQKEAQEY-HLFDYVIVNDDLEDAYEELKEILEAE 173
Query: 295 W 295
Sbjct: 174 Q 174
>gnl|CDD|204819 pfam12052, VGCC_beta4Aa_N, Voltage gated calcium channel subunit
beta domain 4Aa N terminal. The beta subunit of
voltage gated calcium channels is coded for by four
genes 1-4. Gene 4 can produce two types of beta4A
domain (beta4Aa and beta4Ab) according to how the gene
splicing is carried out. This family is part of the
beta4Aa N terminal domain. It is made up of an alpha
helix and a beta strand. It is thought to regulate the
channel properties through protein-protein interactions
with non Ca channel proteins.
Length = 42
Score = 59.9 bits (145), Expect = 5e-12
Identities = 28/42 (66%), Positives = 35/42 (83%), Gaps = 1/42 (2%)
Query: 4 GSAESNFSQPS-SDLSLDEEKETLRREKERQALSQLEKARAK 44
GSA+S S+PS SDLSL+E++E LRRE ERQA +QLEKA+ K
Sbjct: 1 GSADSYTSRPSDSDLSLEEDREALRREAERQAAAQLEKAKTK 42
Score = 59.1 bits (143), Expect = 1e-11
Identities = 27/41 (65%), Positives = 34/41 (82%), Gaps = 1/41 (2%)
Query: 331 GSAESNFSQPS-SDLSLDEEKETLRREKERQALSQLEKARV 370
GSA+S S+PS SDLSL+E++E LRRE ERQA +QLEKA+
Sbjct: 1 GSADSYTSRPSDSDLSLEEDREALRREAERQAAAQLEKAKT 41
>gnl|CDD|212968 cd12035, SH3_MPP1-like, Src Homology 3 domain of Membrane Protein,
Palmitoylated 1 (or MAGUK p55 subfamily member 1)-like
proteins. This subfamily includes MPP1, CASK
(Calcium/calmodulin-dependent Serine protein Kinase),
Caenorhabditis elegans lin-2, and similar proteins. MPP1
and CASK are scaffolding proteins from the MAGUK
(membrane-associated guanylate kinase) protein family,
which is characterized by the presence of a core of
three domains: PDZ, SH3, and guanylate kinase (GuK). In
addition, they also have the Hook (Protein 4.1 Binding)
motif in between the SH3 and GuK domains. The GuK domain
in MAGUK proteins is enzymatically inactive; instead,
the domain mediates protein-protein interactions and
associates intramolecularly with the SH3 domain. CASK
and lin-2 also contain an N-terminal
calmodulin-dependent kinase (CaMK)-like domain and two
L27 domains. MPP1 is ubiquitously-expressed and plays
roles in regulating neutrophil polarity, cell shape,
hair cell development, and neural development and
patterning of the retina. CASK is highly expressed in
the mammalian nervous system and plays roles in synaptic
protein targeting, neural development, and gene
expression regulation. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 62
Score = 47.4 bits (113), Expect = 2e-07
Identities = 24/61 (39%), Positives = 28/61 (45%), Gaps = 5/61 (8%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSE---CGFIPS 106
VR YD S DD P ++F + L I K D NWW R K G+ G IPS
Sbjct: 2 VRAQFDYDPSKDDLIPCQQAGIAFKTGDILQIISKDDHNWWQAR--KPGASKEPAGLIPS 59
Query: 107 P 107
P
Sbjct: 60 P 60
>gnl|CDD|213014 cd12081, SH3_CASK, Src Homology 3 domain of
Calcium/calmodulin-dependent Serine protein Kinase.
CASK is a scaffolding protein that is highly expressed
in the mammalian nervous system and plays roles in
synaptic protein targeting, neural development, and gene
expression regulation. CASK interacts with many
different binding partners including parkin, neurexin,
syndecans, calcium channel proteins, caskin, among
others, to perform specific functions in different
subcellular locations. Disruption of the CASK gene in
mice results in neonatal lethality while mutations in
the human gene have been associated with X-linked mental
retardation. Drosophila CASK is associated with both
pre- and postsynaptic membranes and is crucial in
synaptic transmission and vesicle cycling. CASK contains
an N-terminal calmodulin-dependent kinase (CaMK)-like
domain, two L27 domains, followed by the core of three
domains characteristic of MAGUK (membrane-associated
guanylate kinase) proteins: PDZ, SH3, and guanylate
kinase (GuK). In addition, it also contains the Hook
(Protein 4.1 Binding) motif in between the SH3 and GuK
domains. The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 62
Score = 45.3 bits (107), Expect = 1e-06
Identities = 21/59 (35%), Positives = 26/59 (44%), Gaps = 1/59 (1%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKE-GSECGFIPSP 107
VR +YD DD P + F + + L I K D NWW +L G IPSP
Sbjct: 2 VRAQFEYDPLKDDLIPCKQAGIRFRVGDILQIISKDDHNWWQAKLENSKNGTAGLIPSP 60
>gnl|CDD|213013 cd12080, SH3_MPP1, Src Homology 3 domain of Membrane Protein,
Palmitoylated 1 (or MAGUK p55 subfamily member 1).
MPP1, also called 55 kDa erythrocyte membrane protein
(p55), is a ubiquitously-expressed scaffolding protein
that plays roles in regulating neutrophil polarity, cell
shape, hair cell development, and neural development and
patterning of the retina. It was originally identified
as an erythrocyte protein that stabilizes the actin
cytoskeleton to the plasma membrane by forming a complex
with 4.1R protein and glycophorin C. MPP1 is one of
seven vertebrate homologs of the Drosophila Stardust
protein, which is required in establishing cell
polarity, and it contains the three domains
characteristic of MAGUK (membrane-associated guanylate
kinase) proteins: PDZ, SH3, and guanylate kinase (GuK).
In addition, it also contains the Hook (Protein 4.1
Binding) motif in between the SH3 and GuK domains. The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 62
Score = 44.9 bits (106), Expect = 2e-06
Identities = 22/59 (37%), Positives = 28/59 (47%), Gaps = 1/59 (1%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSE-CGFIPSP 107
+R YD D+ P + F + + I K DSNWW GR+ G E G IPSP
Sbjct: 2 MRAQFDYDPKKDNLIPCKEAGLKFQTGDIIQIINKDDSNWWQGRVEGSGEESAGLIPSP 60
>gnl|CDD|212971 cd12038, SH3_MPP6, Src Homology 3 domain of Membrane Protein,
Palmitoylated 6 (or MAGUK p55 subfamily member 6).
MPP6, also called Veli-associated MAGUK 1 (VAM-1) or
PALS2, is a scaffolding protein that binds to Veli-1, a
homolog of Caenorhabditis Lin-7. It is one of seven
vertebrate homologs of the Drosophila Stardust protein,
which is required in establishing cell polarity, and it
contains two L27 domains followed by the core of three
domains characteristic of MAGUK (membrane-associated
guanylate kinase) proteins: PDZ, SH3, and guanylate
kinase (GuK). In addition, it also contains the Hook
(Protein 4.1 Binding) motif in between the SH3 and GuK
domains. The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 43.5 bits (102), Expect = 5e-06
Identities = 20/57 (35%), Positives = 26/57 (45%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
V+ + Y+ D+ P + F E L I + D NWW VKEG G IPS
Sbjct: 2 VKCHFDYNPYNDNLIPCKEAGLKFSKGEILQIVNREDPNWWQASHVKEGGSAGLIPS 58
>gnl|CDD|212795 cd11861, SH3_DLG-like, Src Homology 3 domain of Disks large homolog
proteins. The DLG-like proteins are scaffolding
proteins that cluster at synapses and are also called
PSD (postsynaptic density)-95 proteins or SAPs
(synapse-associated proteins). They play important roles
in synaptic development and plasticity, cell polarity,
migration and proliferation. They are members of the
MAGUK (membrane-associated guanylate kinase) protein
family, which is characterized by the presence of a core
of three domains: PDZ, SH3, and guanylate kinase (GuK).
The GuK domain in MAGUK proteins is enzymatically
inactive; instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG-like proteins contain three PDZ domains
and varying N-terminal regions. All DLG proteins exist
as alternatively-spliced isoforms. Vertebrates contain
four DLG proteins from different genes, called DLG1-4.
DLG4 and DLG2 are found predominantly at postsynaptic
sites and they mediate surface ion channel and receptor
clustering. DLG3 is found axons and some presynaptic
terminals. DLG1 interacts with AMPA-type glutamate
receptors and is critical in their maturation and
delivery to synapses. The SH3 domain of DLG4 binds and
clusters the kainate subgroup of glutamate receptors via
two proline-rich sequences in their C-terminal tail. It
also binds AKAP79/150 (A-kinase anchoring protein). SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 42.7 bits (101), Expect = 1e-05
Identities = 21/60 (35%), Positives = 24/60 (40%), Gaps = 5/60 (8%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSEC---GFIPS 106
VR YD S D P +SF + LH+ D WW R V E G IPS
Sbjct: 2 VRALFDYDPSRDSGLP--SQGLSFKFGDILHVTNASDDEWWQARRVTPNGEEEEVGVIPS 59
>gnl|CDD|214620 smart00326, SH3, Src homology 3 domains. Src homology 3 (SH3)
domains bind to target proteins through sequences
containing proline and hydrophobic amino acids.
Pro-containing polypeptides may bind to SH3 domains in 2
different binding orientations.
Length = 56
Score = 42.1 bits (100), Expect = 1e-05
Identities = 17/61 (27%), Positives = 24/61 (39%), Gaps = 9/61 (14%)
Query: 46 VAFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIP 105
VR Y D+ +SF + + + EK D WW GRL + + G P
Sbjct: 1 EGPQVRALYDYTAQDPDE-------LSFKKGDIITVLEKSDDGWWKGRLGRG--KEGLFP 51
Query: 106 S 106
S
Sbjct: 52 S 52
>gnl|CDD|212963 cd12030, SH3_DLG4, Src Homology 3 domain of Disks Large homolog 4.
DLG4, also called postsynaptic density-95 (PSD95) or
synapse-associated protein 90 (SAP90), is a scaffolding
protein that clusters at synapses and plays an important
role in synaptic development and plasticity. It is
responsible for the membrane clustering and retention of
many transporters and receptors such as potassium
channels and PMCA4b, a P-type ion transport ATPase,
among others. DLG4 is a member of the MAGUK
(membrane-associated guanylate kinase) protein family,
which is characterized by the presence of a core of
three domains: PDZ, SH3, and guanylate kinase (GuK). The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG4 contains three PDZ domains. The SH3
domain of DLG4 binds and clusters the kainate subgroup
of glutamate receptors via two proline-rich sequences in
their C-terminal tail. It also binds AKAP79/150
(A-kinase anchoring protein). SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 66
Score = 41.5 bits (97), Expect = 3e-05
Identities = 23/68 (33%), Positives = 31/68 (45%), Gaps = 5/68 (7%)
Query: 47 AFAVRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLV---KEGSECGF 103
F +R YD + D A+SF + LH+ + D WW R V E E GF
Sbjct: 1 GFYIRALFDYDKT--KDCGFLSQALSFRFGDVLHVIDAGDEEWWQARRVHSDSETEEIGF 58
Query: 104 IPSPVKLE 111
IPS ++E
Sbjct: 59 IPSKRRVE 66
>gnl|CDD|212796 cd11862, SH3_MPP, Src Homology 3 domain of Membrane Protein,
Palmitoylated (or MAGUK p55 subfamily member) proteins.
The MPP/p55 subfamily of MAGUK (membrane-associated
guanylate kinase) proteins includes at least eight
vertebrate members (MPP1-7 and CASK), four Drosophila
proteins (Stardust, Varicose, CASK and Skiff), and other
similar proteins; they all contain one each of the core
of three domains characteristic of MAGUK proteins: PDZ,
SH3, and guanylate kinase (GuK). In addition, most
members except for MPP1 contain N-terminal L27 domains
and some also contain a Hook (Protein 4.1 Binding) motif
in between the SH3 and GuK domains. CASK has an
additional calmodulin-dependent kinase (CaMK)-like
domain at the N-terminus. Members of this subfamily are
scaffolding proteins that play important roles in
regulating and establishing cell polarity, cell
adhesion, and synaptic targeting and transmission, among
others. The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 41.4 bits (98), Expect = 3e-05
Identities = 20/59 (33%), Positives = 25/59 (42%), Gaps = 1/59 (1%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSEC-GFIPSP 107
VR YD D P +SF + L I + D NWW R V + + G IPS
Sbjct: 2 VRALFDYDPEEDPLIPCKEAGLSFKKGDILQIVNQDDPNWWQARKVGDPNGRAGLIPSQ 60
>gnl|CDD|212690 cd00174, SH3, Src Homology 3 domain superfamily. Src Homology 3
(SH3) domains are protein interaction domains that bind
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. Thus, they
are referred to as proline-recognition domains (PRDs).
SH3 domains are less selective and show more diverse
specificity compared to other PRDs. They have been shown
to bind peptide sequences that lack the PxxP motif;
examples include the PxxDY motif of Eps8 and the
RKxxYxxY sequence in SKAP55. SH3 domain containing
proteins play versatile and diverse roles in the cell,
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies, among others. Many members of this
superfamily are adaptor proteins that associate with a
number of protein partners, facilitating complex
formation and signal transduction.
Length = 51
Score = 38.2 bits (90), Expect = 3e-04
Identities = 16/57 (28%), Positives = 23/57 (40%), Gaps = 9/57 (15%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
R Y+ DD+ +SF + + + EK D WW G L G G P+
Sbjct: 2 ARALYDYEAQDDDE-------LSFKKGDIITVLEKDDDGWWEGEL--NGGREGLFPA 49
>gnl|CDD|212969 cd12036, SH3_MPP5, Src Homology 3 domain of Membrane Protein,
Palmitoylated 5 (or MAGUK p55 subfamily member 5).
MPP5, also called PALS1 (Protein associated with Lin7)
or Nagie oko protein in zebrafish or Stardust in
Drosophila, is a scaffolding protein which associates
with Crumbs homolog 1 (CRB1), CRB2, or CRB3 through its
PDZ domain and with PALS1-associated tight junction
protein (PATJ) or multi-PDZ domain protein 1 (MUPP1)
through its L27 domain. The resulting tri-protein
complexes are core proteins of the Crumb complex, which
localizes at tight junctions or subapical regions, and
is involved in the maintenance of apical-basal polarity
in epithelial cells and the morphogenesis and function
of photoreceptor cells. MPP5 is critical for the proper
stratification of the retina and is also expressed in T
lymphocytes where it is important for TCR-mediated
activation of NFkB. Drosophila Stardust exists in
several isoforms, some of which show opposing functions
in photoreceptor cells, which suggests that the relative
ratio of different Crumbs complexes regulates
photoreceptor homeostasis. MPP5 contains two L27 domains
followed by the core of three domains characteristic of
MAGUK (membrane-associated guanylate kinase) proteins:
PDZ, SH3, and guanylate kinase (GuK). In addition, it
also contains the Hook (Protein 4.1 Binding) motif in
between the SH3 and GuK domains. The GuK domain in MAGUK
proteins is enzymatically inactive; instead, the domain
mediates protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 63
Score = 37.8 bits (88), Expect = 6e-04
Identities = 21/64 (32%), Positives = 28/64 (43%), Gaps = 7/64 (10%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSE-----CGFI 104
VR + YD D P +SF + LH+ + D NWW + +EG E G I
Sbjct: 2 VRAHFDYDPEDDPYIPCRELGLSFQKGDILHVISQEDPNWW--QAYREGEEDNQSLAGLI 59
Query: 105 PSPV 108
PS
Sbjct: 60 PSKS 63
>gnl|CDD|212970 cd12037, SH3_MPP2, Src Homology 3 domain of Membrane Protein,
Palmitoylated 2 (or MAGUK p55 subfamily member 2). MPP2
is a scaffolding protein that interacts with the
non-receptor tyrosine kinase c-Src in epithelial cells
to negatively regulate its activity and morphological
function. It is one of seven vertebrate homologs of the
Drosophila Stardust protein, which is required in
establishing cell polarity, and it contains two L27
domains followed by the core of three domains
characteristic of MAGUK (membrane-associated guanylate
kinase) proteins: PDZ, SH3, and guanylate kinase (GuK).
In addition, it also contains the Hook (Protein 4.1
Binding) motif in between the SH3 and GuK domains. The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 37.2 bits (86), Expect = 8e-04
Identities = 20/57 (35%), Positives = 26/57 (45%), Gaps = 1/57 (1%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
V+ + YD S D P + F + L I + D NWW V+ GS G IPS
Sbjct: 2 VKCHFDYDPSSDSLIPCKEAGLKFRAGDLLQIVNQEDPNWWQACHVEGGS-AGLIPS 57
>gnl|CDD|212962 cd12029, SH3_DLG3, Src Homology 3 domain of Disks Large homolog 3.
DLG3, also called synapse-associated protein 102
(SAP102), is a scaffolding protein that clusters at
synapses and plays an important role in synaptic
development and plasticity. Mutations in DLG3 cause
midgestational embryonic lethality in mice and may be
associated with nonsyndromic X-linked mental retardation
in humans. It interacts with the NEDD4 (neural precursor
cell-expressed developmentally downregulated 4) family
of ubiquitin ligases and promotes apical tight junction
formation. DLG3 is a member of the MAGUK
(membrane-associated guanylate kinase) protein family,
which is characterized by the presence of a core of
three domains: PDZ, SH3, and guanylate kinase (GuK). The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG3 contains three PDZ domains. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 67
Score = 37.4 bits (86), Expect = 0.001
Identities = 23/65 (35%), Positives = 30/65 (46%), Gaps = 5/65 (7%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVK---EGSECGFIPS 106
VR YD + D P G +SF + LH+ D WW RLV E + G IPS
Sbjct: 5 VRALFDYDRTRDSCLPSQG--LSFSYGDILHVINASDDEWWQARLVTPHGESEQIGVIPS 62
Query: 107 PVKLE 111
++E
Sbjct: 63 KKRVE 67
>gnl|CDD|212779 cd11845, SH3_Src_like, Src homology 3 domain of Src kinase-like
Protein Tyrosine Kinases. Src subfamily members include
Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk.
Src (or c-Src) proteins are cytoplasmic (or
non-receptor) PTKs which are anchored to the plasma
membrane. They contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). However,
Brk lacks the N-terminal myristoylation sites. Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. They were identified as the first
proto-oncogene products, and they regulate cell
adhesion, invasion, and motility in cancer cells, and
tumor vasculature, contributing to cancer progression
and metastasis. Src kinases are overexpressed in a
variety of human cancers, making them attractive targets
for therapy. They are also implicated in acute
inflammatory responses and osteoclast function. Src,
Fyn, Yes, and Yrk are widely expressed, while Blk, Lck,
Hck, Fgr, Lyn, and Brk show a limited expression
pattern. This subfamily also includes Drosophila Src42A,
Src oncogene at 42A (also known as Dsrc41) which
accumulates at sites of cell-cell or cell-matrix
adhesion, and participates in Drosphila development and
wound healing. It has been shown to promote tube
elongation in the tracheal system, is essential for
proper cell-cell matching during dorsal closure, and
regulates cell-cell contacts in developing Drosophila
eyes. The SH3 domain of Src kinases contributes to
substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 36.8 bits (86), Expect = 0.001
Identities = 18/51 (35%), Positives = 26/51 (50%), Gaps = 8/51 (15%)
Query: 56 YDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
Y+ DDD +SF + L I + D +WW+ R + G E G+IPS
Sbjct: 8 YEARTDDD-------LSFKKGDRLQILDDSDGDWWLARHLSTGKE-GYIPS 50
>gnl|CDD|212964 cd12031, SH3_DLG1, Src Homology 3 domain of Disks Large homolog 1.
DLG1, also called synapse-associated protein 97 (SAP97),
is a scaffolding protein that clusters at synapses and
plays an important role in synaptic development and
plasticity. DLG1 plays roles in regulating cell
polarity, proliferation, migration, and cycle
progression. It interacts with AMPA-type glutamate
receptors and is critical in their maturation and
delivery to synapses. It also interacts with PKCalpha
and promotes wound healing. DLG1 is a member of the
MAGUK (membrane-associated guanylate kinase) protein
family, which is characterized by the presence of a core
of three domains: PDZ, SH3, and guanylate kinase (GuK).
The GuK domain in MAGUK proteins is enzymatically
inactive; instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG1 contains three PDZ domains. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 67
Score = 35.8 bits (82), Expect = 0.004
Identities = 22/65 (33%), Positives = 29/65 (44%), Gaps = 5/65 (7%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVK---EGSECGFIPS 106
VR YD + D P G ++F + LH+ D WW R V E E G IPS
Sbjct: 5 VRALFDYDKTKDSGLPSQG--LNFKFGDILHVVNASDDEWWQARQVTADGESEEIGVIPS 62
Query: 107 PVKLE 111
++E
Sbjct: 63 KRRVE 67
>gnl|CDD|215659 pfam00018, SH3_1, SH3 domain. SH3 (Src homology 3) domains are
often indicative of a protein involved in signal
transduction related to cytoskeletal organisation. First
described in the Src cytoplasmic tyrosine kinase. The
structure is a partly opened beta barrel.
Length = 47
Score = 33.7 bits (78), Expect = 0.012
Identities = 17/51 (33%), Positives = 23/51 (45%), Gaps = 9/51 (17%)
Query: 56 YDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
Y D+ +SF + + + EK D WW GRL G + G IPS
Sbjct: 6 YTAREPDE-------LSFKKGDIIIVLEKSDDGWWKGRLK--GGKEGLIPS 47
>gnl|CDD|212965 cd12032, SH3_DLG2, Src Homology 3 domain of Disks Large homolog 2.
DLG2, also called postsynaptic density-93 (PSD93) or
Channel-associated protein of synapse-110 (chapsyn 110),
is a scaffolding protein that clusters at synapses and
plays an important role in synaptic development and
plasticity. The DLG2 delta isoform binds inwardly
rectifying potassium Kir2 channels, which determine
resting membrane potential in neurons. It regulates the
spatial and temporal distribution of Kir2 channels
within neuronal membranes. DLG2 is a member of the MAGUK
(membrane-associated guanylate kinase) protein family,
which is characterized by the presence of a core of
three domains: PDZ, SH3, and guanylate kinase (GuK). The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG2 contains three PDZ domains. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 74
Score = 33.9 bits (77), Expect = 0.022
Identities = 22/65 (33%), Positives = 29/65 (44%), Gaps = 5/65 (7%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVK---EGSECGFIPS 106
VR Y+ S D P G +SF + LH+ D WW R V + E G IPS
Sbjct: 8 VRAMFDYEKSKDSGLPSQG--LSFRYGDILHVINASDDEWWQARRVTPDGDSEEMGVIPS 65
Query: 107 PVKLE 111
++E
Sbjct: 66 KRRVE 70
>gnl|CDD|234534 TIGR04286, MSEP-CTERM, MSEP-CTERM protein. Members of this protein
family average over 900 residues in length and appear to
have multiple membrane-spanning helices in the
N-terminal half. The extreme C-terminal region consists
of a motif with consensus sequence MSEP, then a
transmembrane alpha helix, then a short region with
several basic residues. This region, hereby dubbed
MSEP-CTERM, resembles other putative sorting signals
associated with the archaeosortase/exosortase protein
family (see TIGR04178). Genes for all members of this
family are found next to a gene for exosortase K.
Length = 920
Score = 36.2 bits (84), Expect = 0.043
Identities = 34/174 (19%), Positives = 56/174 (32%), Gaps = 27/174 (15%)
Query: 343 DLSLDEEKETLRREKERQALSQ-LEKARVTDDNESIGNSRAGKNTLTTPTTKEKKK--IF 399
D S +K+ L + E + LEKA V N + S++ ++ + +
Sbjct: 639 DCSAKSDKKFLIQRIEEYSKKNNLEKAEVLFVNTDV-KSKSLEDIWQAAAQPQAPEGGFN 697
Query: 400 FKKQETTTPYDVVPSMR-PVVLVGPSLKGYEVTDMMQKALFDF----LKHRFEGRIIITR 454
F + Y P PV++V V+D M KA+ F + F
Sbjct: 698 FDRAVEQILYKHEPQGTYPVIVV--------VSDNMNKAVGPFSTAGMAQTFPESRYYYA 749
Query: 455 VTADISLAKRSLMSNPSKRAIMERSNSRSSVLTEVQTEIERVYELASTLQVYYP 508
+ D+SL S + + + EV R Y S
Sbjct: 750 LNEDLSLIPHSFYDGKRVTEK-----TNAPIPAEV-----REYNGLSAPIAVLD 793
>gnl|CDD|212967 cd12034, SH3_MPP4, Src Homology 3 domain of Membrane Protein,
Palmitoylated 4 (or MAGUK p55 subfamily member 4).
MPP4, also called Disks Large homolog 6 (DLG6) or
Amyotrophic lateral sclerosis 2 chromosomal region
candidate gene 5 protein (ALS2CR5), is a retina-specific
scaffolding protein that plays a role in organizing
presynaptic protein complexes in the photoreceptor
synapse, where it localizes to the plasma membrane. It
is required in the proper localization of calcium
ATPases and for maintenance of calcium homeostasis. MPP4
is one of seven vertebrate homologs of the Drosophila
Stardust protein, which is required in establishing cell
polarity, and it contains two L27 domains followed by
the core of three domains characteristic of MAGUK
(membrane-associated guanylate kinase) proteins: PDZ,
SH3, and guanylate kinase (GuK). The GuK domain in MAGUK
proteins is enzymatically inactive; instead, the domain
mediates protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 32.6 bits (74), Expect = 0.046
Identities = 19/58 (32%), Positives = 26/58 (44%), Gaps = 1/58 (1%)
Query: 50 VRTNVKYDGSIDDDSPVHGYAVSFDIHEFLHIKEKYDSNWWIGRLVKEGSEC-GFIPS 106
VR V Y D P + F + L I ++ DS WW R + + + C G IPS
Sbjct: 2 VRAMVDYWPQQDPSIPCADAGLPFRKGDILQIVDQNDSLWWQARKLSDLAACAGLIPS 59
>gnl|CDD|212706 cd11772, SH3_OSTF1, Src Homology 3 domain of metazoan osteoclast
stimulating factor 1. OSTF1, also named OSF or SH3P2,
is a signaling protein containing SH3 and ankyrin-repeat
domains. It acts through a Src-related pathway to
enhance the formation of osteoclasts and bone
resorption. It also acts as a negative regulator of cell
motility. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 31.9 bits (73), Expect = 0.070
Identities = 14/35 (40%), Positives = 19/35 (54%), Gaps = 3/35 (8%)
Query: 72 SFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
SF+ + L+I +K D NWW G + G IPS
Sbjct: 17 SFEEGDLLYISDKSDPNWWKATC---GGKTGLIPS 48
>gnl|CDD|219804 pfam08346, AntA, AntA/AntB antirepressor. In E. coli the two
proteins AntA and AntB have 62% amino acid identities
near their N termini. AntA appears to be encoded by a
truncated and divergent copy of AntB. The two proteins
are homologous to putative antirepressors found in
numerous bacteriophages, such as the hypothetical
antirepressor protein encoded by the gene LO142 of the
bacteriophage 933W.
Length = 70
Score = 31.4 bits (72), Expect = 0.14
Identities = 10/31 (32%), Positives = 18/31 (58%), Gaps = 5/31 (16%)
Query: 74 DIHEFLHIKEKYDSNWWIGRLVKEGSECGFI 104
++H+FL +K ++ S W R+ E GF+
Sbjct: 5 ELHKFLEVKTRF-SKWIKDRI----KEYGFV 30
>gnl|CDD|212771 cd11837, SH3_Intersectin_2, Second Src homology 3 domain (or SH3B)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The second SH3 domain (or SH3B) of
ITSN1 has been shown to bind WNK and CdGAP. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 30.0 bits (68), Expect = 0.27
Identities = 15/40 (37%), Positives = 21/40 (52%), Gaps = 4/40 (10%)
Query: 72 SFDIHEFLHIKEKYDSNWWIGRLVKEGSECGFIP-SPVKL 110
SF + + + E+ + WW G L EG E G+ P S VK
Sbjct: 17 SFAKGDIITVLEQQE-MWWFGEL--EGGEEGWFPKSYVKE 53
>gnl|CDD|212765 cd11831, SH3_VAV_1, First Src homology 3 domain of VAV proteins.
VAV proteins function both as cytoplasmic guanine
nucleotide exchange factors (GEFs) for Rho GTPases and
scaffold proteins and they play important roles in cell
signaling by coupling cell surface receptors to various
effector functions. They play key roles in processes
that require cytoskeletal reorganization including
immune synapse formation, phagocytosis, cell spreading,
and platelet aggregation, among others. Vertebrates have
three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins
contain several domains that enable their function:
N-terminal calponin homology (CH), acidic, RhoGEF (also
called Dbl-homologous or DH), Pleckstrin Homology (PH),
C1 (zinc finger), SH2, and two SH3 domains. The SH3
domain of VAV is involved in the localization of
proteins to specific sites within the cell, by
interacting with proline-rich sequences within target
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 62
Score = 28.0 bits (62), Expect = 1.9
Identities = 14/33 (42%), Positives = 17/33 (51%), Gaps = 3/33 (9%)
Query: 74 DIHEFLHIKEKYDSNWWIGRLVKEGSECGFIPS 106
D+ E L K +S WW GR V E G+ PS
Sbjct: 28 DVVELL--KGDAESPWWEGRNVATR-EVGYFPS 57
>gnl|CDD|197349 cd10041, Reelin_repeat_5_subrepeat_1, N-terminal subrepeat of
tandem repeat unit 5 of reelin and related proteins.
Reelin is an extracellular glycoprotein involved in
neuronal development, specifically in the brain cortex.
It contains 8 tandemly repeated units, each of which is
composed of two highly similar subrepeats and a central
EGF domain. This model characterizes the N-terminal
subrepeat, which directly contacts the C-terminal
subrepeat and the EGF domain in a compact arrangement.
Consecutive reelin repeat units are packed together to
form an overall rod-like molecular structure. Reelin
repeats 5 and 6 are reported to interact with neuronal
receptors, the apolipoprotein E receptor 2 (ApoER2) and
the very-low-density lipoprotein receptor (VLDLR),
triggering a signaling cascade upon binding and
subsequent tyrosine phosphorylation of the cytoplasmic
disabled-1 (Dab1).
Length = 174
Score = 29.4 bits (66), Expect = 2.9
Identities = 15/51 (29%), Positives = 22/51 (43%), Gaps = 2/51 (3%)
Query: 180 SRSSVLTEVQTEIERVYELASTLQLVVLDCDTINHPSQLAKTNLSPCIVYL 230
+ SS V+ E R + +T L++ C + S L T L P VY
Sbjct: 76 TESSSADPVRLEFSR--DFGATWHLLLPLCYGSSSISSLCSTELHPSSVYY 124
>gnl|CDD|223179 COG0101, TruA, Pseudouridylate synthase [Translation, ribosomal
structure and biogenesis].
Length = 266
Score = 29.5 bits (67), Expect = 3.3
Identities = 12/26 (46%), Positives = 13/26 (50%)
Query: 285 EHIAEYLEAYWRATHPPAAPPQPLTL 310
E I E LEA R P AP + L L
Sbjct: 214 EWIKELLEAKDRKLAGPTAPAEGLYL 239
>gnl|CDD|216792 pfam01927, DUF82, Protein of unknown function DUF82. This
prokaryotic protein family has no known function. The
protein contains four conserved cysteines that may be
involved in metal binding or disulphide bridges.
Length = 146
Score = 28.4 bits (64), Expect = 5.9
Identities = 11/23 (47%), Positives = 15/23 (65%), Gaps = 3/23 (13%)
Query: 447 EGRIIITRVTADISLAKRSLMSN 469
EGRI++TR D L KR L++
Sbjct: 41 EGRILLTR---DRGLLKRRLLTG 60
>gnl|CDD|223033 PHA03291, PHA03291, envelope glycoprotein I; Provisional.
Length = 401
Score = 29.2 bits (65), Expect = 6.1
Identities = 10/53 (18%), Positives = 19/53 (35%)
Query: 300 PPAAPPQPLTLLPPRQLTAHQSVVIPPSPSMGSAESNFSQPSSDLSLDEEKET 352
P P P T P + PPS ++ + + + P + + + E
Sbjct: 205 PATPRPTPRTTASPETTPTPSTTTSPPSTTIPAPSTTIAAPQAGTTPEAEGTP 257
>gnl|CDD|236098 PRK07789, PRK07789, acetolactate synthase 1 catalytic subunit;
Validated.
Length = 612
Score = 28.4 bits (64), Expect = 9.5
Identities = 11/28 (39%), Positives = 16/28 (57%)
Query: 296 RATHPPAAPPQPLTLLPPRQLTAHQSVV 323
A PPAAP ++ P ++T Q+VV
Sbjct: 11 SAAPPPAAPAARPRIVAPERMTGAQAVV 38
>gnl|CDD|236138 PRK07994, PRK07994, DNA polymerase III subunits gamma and tau;
Validated.
Length = 647
Score = 28.7 bits (65), Expect = 9.9
Identities = 18/83 (21%), Positives = 28/83 (33%), Gaps = 9/83 (10%)
Query: 297 ATHP------PAAPPQPLTLLPPRQLTAHQSVVIPPSPSMGSAESNFSQPSSDLSLDEEK 350
A HP P PPQ Q TA + + P + S P ++ +
Sbjct: 358 AFHPAAPLPEPEVPPQSAAPAASAQATAAPTAAVAPPQAPAVPPPPASAPQQAPAVPLPE 417
Query: 351 ETLRREKERQALSQLEKARVTDD 373
T + A QL++A+
Sbjct: 418 TT---SQLLAARQQLQRAQGATK 437
>gnl|CDD|233793 TIGR02237, recomb_radB, DNA repair and recombination protein RadB.
This family consists exclusively of archaeal RadB
protein, a homolog of bacterial RecA (TIGR02012),
eukaryotic RAD51 (TIGR02239) and DMC1 (TIGR02238), and
archaeal RadA (TIGR02236).
Length = 209
Score = 28.1 bits (63), Expect = 10.0
Identities = 25/97 (25%), Positives = 36/97 (37%), Gaps = 17/97 (17%)
Query: 17 LSLDEEKETLRREKERQALSQLEKARAKNVAFAVRTNVKYDGSIDDDSPVHGYAV---SF 73
L L +++ + RE RQ L AR KN+A + V D + P+ G+ + S
Sbjct: 112 LELSDDRISRNRELARQLTLLLSLARKKNLAVVITNQVYTDVNNGTLRPLGGHLLEHWSK 171
Query: 74 DIHEF-------LHIKEKYDSNWWIGRLVKEGSECGF 103
I L EK+ R EG F
Sbjct: 172 VILRLEKFRGRRLATLEKH-------RSRPEGESVYF 201
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
0.313 0.127 0.350
Gapped
Lambda K H
0.267 0.0813 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 25,090,570
Number of extensions: 2411631
Number of successful extensions: 2462
Number of sequences better than 10.0: 1
Number of HSP's gapped: 2452
Number of HSP's successfully gapped: 65
Length of query: 510
Length of database: 10,937,602
Length adjustment: 101
Effective length of query: 409
Effective length of database: 6,457,848
Effective search space: 2641259832
Effective search space used: 2641259832
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.2 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 42 (21.9 bits)
S2: 61 (27.1 bits)