RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy14174
(269 letters)
>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 = 90.7 bits (226), Expect = 9e-24
Identities = 28/41 (68%), Positives = 31/41 (75%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA FDYD DP IPCK+AGLSF KGDIL +V+QDD W
Sbjct: 1 FVRALFDYDPEEDPLIPCKEAGLSFKKGDILQIVNQDDPNW 41
>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 = 79.0 bits (195), Expect = 2e-19
Identities = 29/40 (72%), Positives = 33/40 (82%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRAHFDYD DPYIPC++ GLSF KGDILHV+SQ+D W
Sbjct: 2 VRAHFDYDPEDDPYIPCRELGLSFQKGDILHVISQEDPNW 41
>gnl|CDD|238492 cd00992, PDZ_signaling, PDZ domain found in a variety of Eumetazoan
signaling molecules, often in tandem arrangements. May
be responsible for specific protein-protein
interactions, as most PDZ domains bind C-terminal
polypeptides, and binding to internal (non-C-terminal)
polypeptides and even to lipids has been demonstrated.
In this subfamily of PDZ domains an N-terminal
beta-strand forms the peptide-binding groove base, a
circular permutation with respect to PDZ domains found
in proteases.
Length = 82
Score = 76.5 bits (189), Expect = 4e-18
Identities = 32/83 (38%), Positives = 51/83 (61%), Gaps = 3/83 (3%)
Query: 135 VKIVQLVKS-NEPLGATIKTDEESGK-IVVARVMHGGAADRSGLIHVGDEVCEVNGINVE 192
V+ V L K LG +++ ++SG I V+RV GG A+R GL VGD + EVNG++VE
Sbjct: 1 VRTVTLRKDPGGGLGFSLRGGKDSGGGIFVSRVEPGGPAERGGL-RVGDRILEVNGVSVE 59
Query: 193 GKTPGDVLKILQSSEGTITFKLI 215
G T + +++L++S +T +
Sbjct: 60 GLTHEEAVELLKNSGDEVTLTVR 82
>gnl|CDD|214570 smart00228, PDZ, Domain present in PSD-95, Dlg, and ZO-1/2. Also
called DHR (Dlg homologous region) or GLGF (relatively
well conserved tetrapeptide in these domains). Some PDZs
have been shown to bind C-terminal polypeptides; others
appear to bind internal (non-C-terminal) polypeptides.
Different PDZs possess different binding specificities.
Length = 85
Score = 72.8 bits (179), Expect = 1e-16
Identities = 27/83 (32%), Positives = 49/83 (59%), Gaps = 2/83 (2%)
Query: 135 VKIVQLVKSNEPLGATIKTDEESGK-IVVARVMHGGAADRSGLIHVGDEVCEVNGINVEG 193
++V+L K LG ++ ++ G +VV+ V+ G A ++GL VGD + EVNG +VEG
Sbjct: 2 PRLVELEKGGGGLGFSLVGGKDEGGGVVVSSVVPGSPAAKAGL-RVGDVILEVNGTSVEG 60
Query: 194 KTPGDVLKILQSSEGTITFKLIP 216
T + + +L+ + G +T ++
Sbjct: 61 LTHLEAVDLLKKAGGKVTLTVLR 83
>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 = 66.1 bits (161), Expect = 1e-14
Identities = 24/40 (60%), Positives = 30/40 (75%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V+ HFDYD SSD IPCK+AGL F GD+L +V+Q+D W
Sbjct: 2 VKCHFDYDPSSDSLIPCKEAGLKFRAGDLLQIVNQEDPNW 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 = 65.1 bits (159), Expect = 5e-14
Identities = 23/40 (57%), Positives = 29/40 (72%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA FDYD S D IPC+ AG++F GDIL ++S+DD W
Sbjct: 2 VRAQFDYDPSKDDLIPCQQAGIAFKTGDILQIISKDDHNW 41
>gnl|CDD|212966 cd12033, SH3_MPP7, Src Homology 3 domain of Membrane Protein,
Palmitoylated 7 (or MAGUK p55 subfamily member 7). MPP7
is a scaffolding protein that binds to DLG1 and promotes
tight junction formation and epithelial cell polarity.
Mutations in the MPP7 gene may be associated with the
pathogenesis of diabetes and extreme bone mineral
density. 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).
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 = 64.7 bits (157), Expect = 6e-14
Identities = 25/40 (62%), Positives = 32/40 (80%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
++A FDY+ + D IPCK+AGLSF KGDIL ++SQDDA W
Sbjct: 2 IKALFDYNPNEDKAIPCKEAGLSFKKGDILQIMSQDDATW 41
>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 = 60.7 bits (147), Expect = 2e-12
Identities = 24/40 (60%), Positives = 27/40 (67%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA DY DP IPC DAGL F KGDIL +V Q+D+ W
Sbjct: 2 VRAMVDYWPQQDPSIPCADAGLPFRKGDILQIVDQNDSLW 41
>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 = 59.7 bits (144), Expect = 4e-12
Identities = 21/40 (52%), Positives = 31/40 (77%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V+ HFDY+ +D IPCK+AGL F+KG+IL +V+++D W
Sbjct: 2 VKCHFDYNPYNDNLIPCKEAGLKFSKGEILQIVNREDPNW 41
>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 = 59.2 bits (143), Expect = 6e-12
Identities = 21/40 (52%), Positives = 29/40 (72%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+RA FDYD D IPCK+AGL F GDI+ ++++DD+ W
Sbjct: 2 MRAQFDYDPKKDNLIPCKEAGLKFQTGDIIQIINKDDSNW 41
>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 = 58.4 bits (141), Expect = 1e-11
Identities = 22/40 (55%), Positives = 27/40 (67%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA F+YD D IPCK AG+ F GDIL ++S+DD W
Sbjct: 2 VRAQFEYDPLKDDLIPCKQAGIRFRVGDILQIISKDDHNW 41
>gnl|CDD|238080 cd00136, PDZ, PDZ domain, also called DHR (Dlg homologous region)
or GLGF (after a conserved sequence motif). Many PDZ
domains bind C-terminal polypeptides, though binding to
internal (non-C-terminal) polypeptides and even to
lipids has been demonstrated. Heterodimerization through
PDZ-PDZ domain interactions adds to the domain's
versatility, and PDZ domain-mediated interactions may be
modulated dynamically through target phosphorylation.
Some PDZ domains play a role in scaffolding
supramolecular complexes. PDZ domains are found in
diverse signaling proteins in bacteria, archebacteria,
and eurkayotes. This CD contains two distinct structural
subgroups with either a N- or C-terminal beta-strand
forming the peptide-binding groove base. The circular
permutation placing the strand on the N-terminus appears
to be found in Eumetazoa only, while the C-terminal
variant is found in all three kingdoms of life, and
seems to co-occur with protease domains. PDZ domains
have been named after PSD95(post synaptic density
protein), DlgA (Drosophila disc large tumor suppressor),
and ZO1, a mammalian tight junction protein.
Length = 70
Score = 58.1 bits (141), Expect = 2e-11
Identities = 25/71 (35%), Positives = 38/71 (53%), Gaps = 3/71 (4%)
Query: 146 PLGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLKILQS 205
LG +I+ E G +VV V G A+R+GL GD + VNG +V+ T DV ++L+
Sbjct: 2 GLGFSIRGGTEGG-VVVLSVEPGSPAERAGL-QAGDVILAVNGTDVKNLTLEDVAELLKK 59
Query: 206 SEG-TITFKLI 215
G +T +
Sbjct: 60 EVGEKVTLTVR 70
>gnl|CDD|212972 cd12039, SH3_MPP3, Src Homology 3 domain of Membrane Protein,
Palmitoylated 3 (or MAGUK p55 subfamily member 3). MPP3
is a scaffolding protein that colocalizes with MPP5 and
CRB1 at the subdpical region adjacent to adherens
junctions and may function in photoreceptor polarity. It
interacts with some nectins and regulates their
trafficking and processing. Nectins are cell-cell
adhesion proteins involved in the establishment
apical-basal polarity at cell adhesion sites. 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). 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 = 57.3 bits (138), Expect = 3e-11
Identities = 23/40 (57%), Positives = 28/40 (70%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+RA FDY+ D IPC++AGL F + DIL VVSQDD W
Sbjct: 2 MRALFDYNPYEDRAIPCQEAGLPFKRRDILEVVSQDDPTW 41
>gnl|CDD|238488 cd00988, PDZ_CTP_protease, PDZ domain of C-terminal processing-,
tail-specific-, and tricorn proteases, which function in
posttranslational protein processing, maturation, and
disassembly or degradation, in Bacteria, Archaea, and
plant chloroplasts. May be responsible for substrate
recognition and/or binding, as most PDZ domains bind
C-terminal polypeptides, and binding to internal
(non-C-terminal) polypeptides and even to lipids has
been demonstrated. In this subfamily of
protease-associated PDZ domains a C-terminal beta-strand
forms the peptide-binding groove base, a circular
permutation with respect to PDZ domains found in
Eumetazoan signaling proteins.
Length = 85
Score = 54.9 bits (133), Expect = 4e-10
Identities = 22/75 (29%), Positives = 40/75 (53%), Gaps = 4/75 (5%)
Query: 147 LGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLKILQSS 206
+G +K + G +V+ V+ G A ++G I GD + ++G V+G + DV+K+L+
Sbjct: 4 IGLELK--YDDGGLVITSVLPGSPAAKAG-IKAGDIIVAIDGEPVDGLSLEDVVKLLRGK 60
Query: 207 EGT-ITFKLIPADNK 220
GT + L D +
Sbjct: 61 AGTKVRLTLKRGDGE 75
>gnl|CDD|201332 pfam00595, PDZ, PDZ domain (Also known as DHR or GLGF). PDZ
domains are found in diverse signaling proteins.
Length = 80
Score = 54.2 bits (131), Expect = 6e-10
Identities = 19/74 (25%), Positives = 37/74 (50%), Gaps = 2/74 (2%)
Query: 143 SNEPLGATIKTDEESGK-IVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLK 201
LG ++ + I V+ V+ GGAA+ G + GD + +NG ++E + + +
Sbjct: 8 GRGGLGFSLVGGSDGDPGIFVSEVLPGGAAEAGG-LQEGDRILSINGQDLENLSHDEAVL 66
Query: 202 ILQSSEGTITFKLI 215
L+ S G +T ++
Sbjct: 67 ALKGSGGEVTLTIL 80
>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 = 51.6 bits (124), Expect = 4e-09
Identities = 23/41 (56%), Positives = 27/41 (65%), Gaps = 3/41 (7%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVS-QDDAYW 269
VRA FDYD S D +P + GLSF GDILHV + DD +W
Sbjct: 2 VRALFDYDPSRDSGLPSQ--GLSFKFGDILHVTNASDDEWW 40
>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 = 45.6 bits (109), Expect = 4e-07
Identities = 16/41 (39%), Positives = 21/41 (51%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+VRA +DY A LSF KGDI+ V+ + D W
Sbjct: 4 QVRALYDYTAQDPD-------ELSFKKGDIITVLEKSDDGW 37
>gnl|CDD|197794 smart00569, L27, domain in receptor targeting proteins Lin-2 and
Lin-7.
Length = 53
Score = 44.8 bits (107), Expect = 9e-07
Identities = 26/53 (49%), Positives = 35/53 (66%)
Query: 70 QISLEVLDVLLSRLALNDDCKELFVLLQRPNLQGLLCAHDAVAQKDYYPRLPE 122
Q LE+L+ L S L+ ++D +EL LLQ P+LQ LL HD VA+ + P LPE
Sbjct: 1 QRLLELLEELQSLLSPSEDLQELRRLLQSPHLQALLKIHDKVAETELDPPLPE 53
Score = 35.6 bits (83), Expect = 0.001
Identities = 19/41 (46%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 16 LLETLQESQSTFSANDEELLFLSSLLQSKELNALVHVHNSI 56
LLE L+E QS S + E+L L LLQS L AL+ +H+ +
Sbjct: 3 LLELLEELQSLLSPS-EDLQELRRLLQSPHLQALLKIHDKV 42
>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 = 45.1 bits (106), Expect = 1e-06
Identities = 22/41 (53%), Positives = 29/41 (70%), Gaps = 3/41 (7%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV-SQDDAYW 269
VRA FDYD + D +P + GLSF+ GDILHV+ + DD +W
Sbjct: 5 VRALFDYDRTRDSCLPSQ--GLSFSYGDILHVINASDDEWW 43
>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 = 44.7 bits (105), Expect = 2e-06
Identities = 22/47 (46%), Positives = 31/47 (65%), Gaps = 3/47 (6%)
Query: 224 RESKIRVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV-SQDDAYW 269
++ + VRA FDY+ S D +P + GLSF GDILHV+ + DD +W
Sbjct: 2 QKRSLYVRAMFDYEKSKDSGLPSQ--GLSFRYGDILHVINASDDEWW 46
>gnl|CDD|223864 COG0793, Prc, Periplasmic protease [Cell envelope biogenesis, outer
membrane].
Length = 406
Score = 47.3 bits (113), Expect = 4e-06
Identities = 18/72 (25%), Positives = 40/72 (55%), Gaps = 3/72 (4%)
Query: 147 LGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLKILQSS 206
+G ++ E+ G + V + G A ++G I GD + +++G +V G + + +K+++
Sbjct: 102 IGIELQ-MEDIGGVKVVSPIDGSPAAKAG-IKPGDVIIKIDGKSVGGVSLDEAVKLIRGK 159
Query: 207 EGT-ITFKLIPA 217
GT +T ++ A
Sbjct: 160 PGTKVTLTILRA 171
>gnl|CDD|238490 cd00990, PDZ_glycyl_aminopeptidase, PDZ domain associated with
archaeal and bacterial M61 glycyl-aminopeptidases. May
be responsible for substrate recognition and/or binding,
as most PDZ domains bind C-terminal polypeptides, and
binding to internal (non-C-terminal) polypeptides and
even to lipids has been demonstrated. In this subfamily
of protease-associated PDZ domains a C-terminal
beta-strand is presumed to form the peptide-binding
groove base, a circular permutation with respect to PDZ
domains found in Eumetazoan signaling proteins.
Length = 80
Score = 43.6 bits (103), Expect = 5e-06
Identities = 21/77 (27%), Positives = 33/77 (42%), Gaps = 9/77 (11%)
Query: 151 IKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGI-------NVEGKTPGDVLKIL 203
+ D+E G V V AD++GL+ GDE+ VNG ++ GD +++
Sbjct: 5 LTLDKEEGLGKVTFVRDDSPADKAGLV-AGDELVAVNGWRVDALQDRLKEYQAGDPVELT 63
Query: 204 QSSEGT-ITFKLIPADN 219
+ I L AD
Sbjct: 64 VFRDDRLIEVPLTLADP 80
>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 = 42.8 bits (100), Expect = 7e-06
Identities = 22/41 (53%), Positives = 28/41 (68%), Gaps = 3/41 (7%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV-SQDDAYW 269
VRA FDYD + D +P + GL+F GDILHVV + DD +W
Sbjct: 5 VRALFDYDKTKDSGLPSQ--GLNFKFGDILHVVNASDDEWW 43
>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 = 42.1 bits (100), Expect = 8e-06
Identities = 17/41 (41%), Positives = 22/41 (53%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RA +DY+A D LSF KGDI+ V+ +DD W
Sbjct: 1 YARALYDYEAQDD-------DELSFKKGDIITVLEKDDDGW 34
>gnl|CDD|212816 cd11883, SH3_Sdc25, Src Homology 3 domain of Sdc25/Cdc25 guanine
nucleotide exchange factors. This subfamily is composed
of the Saccharomyces cerevisiae guanine nucleotide
exchange factors (GEFs) Sdc25 and Cdc25, and similar
proteins. These GEFs regulate Ras by stimulating the
GDP/GTP exchange on Ras. Cdc25 is involved in the
Ras/PKA pathway that plays an important role in the
regulation of metabolism, stress responses, and
proliferation, depending on available nutrients and
conditions. Proteins in this subfamily contain an
N-terminal SH3 domain as well as REM (Ras exchanger
motif) and RasGEF domains at the C-terminus. SH3 domains
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 55
Score = 38.4 bits (90), Expect = 1e-04
Identities = 13/40 (32%), Positives = 21/40 (52%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V A +D+ S LSF GDI++V+++D + W
Sbjct: 2 VVALYDFTPKSKNQ-------LSFKAGDIIYVLNKDPSGW 34
>gnl|CDD|212793 cd11859, SH3_ZO, Src homology 3 domain of the Tight junction
proteins, Zonula occludens (ZO) proteins. ZO proteins
are scaffolding proteins that associate with each other
and with other proteins of the tight junction, zonula
adherens, and gap junctions. They play roles in
regulating cytoskeletal dynamics at these cell
junctions. They are considered 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. Vertebrates contain three ZO proteins (ZO-1,
ZO-2, and ZO-3) with redundant and non-redundant roles.
They contain three PDZ domains, followed by SH3 and GuK
domains; in addition, ZO-1 and ZO-2 contains a
proline-rich (PR) actin binding domain at the C-terminus
while ZO-3 contains this PR domain between the second
and third PDZ domains. The C-terminal regions of the
three ZO proteins are unique. The SH3 domain of ZO-1 has
been shown to bind ZONAB, ZAK, afadin, and Galpha12. 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 = 37.7 bits (88), Expect = 3e-04
Identities = 13/33 (39%), Positives = 18/33 (54%), Gaps = 7/33 (21%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV 262
+R HFDY+ + LSF KG++ HVV
Sbjct: 2 IRTHFDYEKPAK-------GELSFKKGEVFHVV 27
>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 = 37.3 bits (87), Expect = 4e-04
Identities = 13/41 (31%), Positives = 20/41 (48%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
A + P+ K+ LSF KGDI+ V+ Q + +W
Sbjct: 1 TATALY-------PWRAKKENHLSFAKGDIITVLEQQEMWW 34
>gnl|CDD|219499 pfam07653, SH3_2, Variant 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 = 53
Score = 37.1 bits (87), Expect = 5e-04
Identities = 13/42 (30%), Positives = 20/42 (47%), Gaps = 8/42 (19%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQD-DAYW 269
R FDY A+ LS KGD++ V+ +D + +W
Sbjct: 1 YGRVIFDYVATDPN-------ELSLKKGDVVKVLDKDDNGWW 35
>gnl|CDD|238489 cd00989, PDZ_metalloprotease, PDZ domain of bacterial and plant
zinc metalloprotases, presumably membrane-associated or
integral membrane proteases, which may be involved in
signalling and regulatory mechanisms. May be responsible
for substrate recognition and/or binding, as most PDZ
domains bind C-terminal polypeptides, and binding to
internal (non-C-terminal) polypeptides and even to
lipids has been demonstrated. In this subfamily of
protease-associated PDZ domains a C-terminal beta-strand
forms the peptide-binding groove base, a circular
permutation with respect to PDZ domains found in
Eumetazoan signaling proteins.
Length = 79
Score = 37.6 bits (88), Expect = 5e-04
Identities = 14/62 (22%), Positives = 30/62 (48%), Gaps = 4/62 (6%)
Query: 161 VVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLKILQSSEG-TITFKLIPADN 219
V+ V+ G A ++G + GD + +NG + K+ D++ +Q + G +T +
Sbjct: 15 VIGEVVPGSPAAKAG-LKAGDRILAINGQKI--KSWEDLVDAVQENPGKPLTLTVERNGE 71
Query: 220 KL 221
+
Sbjct: 72 TI 73
>gnl|CDD|238487 cd00987, PDZ_serine_protease, PDZ domain of tryspin-like serine
proteases, such as DegP/HtrA, which are oligomeric
proteins involved in heat-shock response, chaperone
function, and apoptosis. May be responsible for
substrate recognition and/or binding, as most PDZ
domains bind C-terminal polypeptides, though binding to
internal (non-C-terminal) polypeptides and even to
lipids has been demonstrated. In this subfamily of
protease-associated PDZ domains a C-terminal beta-strand
forms the peptide-binding groove base, a circular
permutation with respect to PDZ domains found in
Eumetazoan signaling proteins.
Length = 90
Score = 37.6 bits (88), Expect = 7e-04
Identities = 20/80 (25%), Positives = 35/80 (43%), Gaps = 6/80 (7%)
Query: 138 VQLVKSNEPLGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPG 197
V + L + + G ++VA V G A ++GL GD + VNG V K+
Sbjct: 5 VTVQDLTPDLAEELGLKDTKG-VLVASVDPGSPAAKAGL-KPGDVILAVNGKPV--KSVA 60
Query: 198 DVLKILQSSE--GTITFKLI 215
D+ + L + +T ++
Sbjct: 61 DLRRALAELKPGDKVTLTVL 80
>gnl|CDD|221961 pfam13180, PDZ_2, PDZ domain.
Length = 81
Score = 37.2 bits (87), Expect = 7e-04
Identities = 16/66 (24%), Positives = 29/66 (43%), Gaps = 12/66 (18%)
Query: 147 LGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGI----------NVEGKTP 196
+G + +E +G + V V G A ++GL GD + ++G + P
Sbjct: 3 IGVRVVQNEGTG-VTVVSVKEGSPAAKAGL-KPGDIILSIDGKKVNSLTELIEVILNGKP 60
Query: 197 GDVLKI 202
GD +K+
Sbjct: 61 GDTVKL 66
>gnl|CDD|212882 cd11949, SH3_GRB2_C, C-terminal Src homology 3 domain of Growth
factor receptor-bound protein 2. GRB2 is a critical
signaling molecule that regulates the Ras pathway by
linking tyrosine kinases to the Ras guanine nucleotide
releasing protein Sos (son of sevenless), which converts
Ras to the active GTP-bound state. It is ubiquitously
expressed in all tissues throughout development and is
important in cell cycle progression, motility,
morphogenesis, and angiogenesis. In lymphocytes, GRB2 is
associated with antigen receptor signaling components.
GRB2 contains an N-terminal SH3 domain, a central SH2
domain, and a C-terminal SH3 domain. The C-terminal SH3
domain of GRB2 binds to Gab2 (Grb2-associated binder 2)
through epitopes containing RxxK motifs, as well as to
the proline-rich C-terminus of FGRF2. SH3 domains are
protein interaction domains that typically 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 = 36.0 bits (83), Expect = 0.001
Identities = 14/40 (35%), Positives = 20/40 (50%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V+A FD+D P +D L F +GD + V+ D W
Sbjct: 2 VQALFDFD-------PQEDGELGFRRGDFIEVMDNSDPNW 34
>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 = 35.6 bits (83), Expect = 0.001
Identities = 14/39 (35%), Positives = 19/39 (48%), Gaps = 7/39 (17%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
A +DY A + LSF KGDI+ V+ + D W
Sbjct: 1 VALYDYTAREP-----DE--LSFKKGDIIIVLEKSDDGW 32
>gnl|CDD|212994 cd12061, SH3_betaPIX, Src Homology 3 domain of beta-Pak Interactive
eXchange factor. Beta-PIX, also called Rho guanine
nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned
out of Library)-1, activates small GTPases by exchanging
bound GDP for free GTP. It acts as a GEF for both Cdc42
and Rac 1, and plays important roles in regulating
neuroendocrine exocytosis, focal adhesion maturation,
cell migration, synaptic vesicle localization, and
insulin secretion. PIX proteins contain an N-terminal
SH3 domain followed by RhoGEF (also called
Dbl-homologous or DH) and Pleckstrin Homology (PH)
domains, and a C-terminal leucine-zipper domain for
dimerization. The SH3 domain of PIX binds to an atypical
PxxxPR motif in p21-activated kinases (PAKs) with high
affinity. The binding of PAKs to PIX facilitate the
localization of PAKs to focal complexes and also
localizes PAKs to PIX targets Cdc43 and Rac, leading to
the activation of PAKs. 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 = 54
Score = 35.4 bits (81), Expect = 0.002
Identities = 13/40 (32%), Positives = 23/40 (57%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA F++ +++ LSF+KGD++HV ++ W
Sbjct: 2 VRAKFNFQQTNEDE-------LSFSKGDVIHVTRVEEGGW 34
>gnl|CDD|232883 TIGR00225, prc, C-terminal peptidase (prc). A C-terminal peptidase
with different substrates in different species including
processing of D1 protein of the photosystem II reaction
center in higher plants and cleavage of a peptide of 11
residues from the precursor form of penicillin-binding
protein in E.coli E.coli and H influenza have the most
distal branch of the tree and their proteins have an
N-terminal 200 amino acids that show no homology to
other proteins in the database [Protein fate,
Degradation of proteins, peptides, and glycopeptides,
Protein fate, Protein modification and repair].
Length = 334
Score = 38.5 bits (90), Expect = 0.002
Identities = 19/72 (26%), Positives = 38/72 (52%), Gaps = 3/72 (4%)
Query: 138 VQLVKSNEPLGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPG 197
S E +G + + G+IV+ G A+++G I GD++ ++NG +V G +
Sbjct: 44 ETTSGSLEGIGIQVG--MDDGEIVIVSPFEGSPAEKAG-IKPGDKIIKINGKSVAGMSLD 100
Query: 198 DVLKILQSSEGT 209
D + +++ +GT
Sbjct: 101 DAVALIRGKKGT 112
>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 = 34.6 bits (80), Expect = 0.004
Identities = 14/40 (35%), Positives = 21/40 (52%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RA +DY+A D LSF +GD+L++ + D W
Sbjct: 2 FRALYDYEAQHP------DE-LSFEEGDLLYISDKSDPNW 34
>gnl|CDD|212810 cd11877, SH3_PIX, Src Homology 3 domain of Pak Interactive eXchange
factors. PIX proteins are Rho guanine nucleotide
exchange factors (GEFs), which activate small GTPases by
exchanging bound GDP for free GTP. They act as GEFs for
both Cdc42 and Rac 1, and have been implicated in cell
motility, adhesion, neurite outgrowth, and cell
polarity. Vertebrates contain two proteins from the PIX
subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also
called ARHGEF6, is localized in dendritic spines where
it regulates spine morphogenesis. Mutations in the
ARHGEF6 gene cause X-linked intellectual disability in
humans. Beta-PIX play roles in regulating neuroendocrine
exocytosis, focal adhesion maturation, cell migration,
synaptic vesicle localization, and insulin secretion.
PIX proteins contain an N-terminal SH3 domain followed
by RhoGEF (also called Dbl-homologous or DH) and
Pleckstrin Homology (PH) domains, and a C-terminal
leucine-zipper domain for dimerization. The SH3 domain
of PIX binds to an atypical PxxxPR motif in
p21-activated kinases (PAKs) with high affinity. The
binding of PAKs to PIX facilitate the localization of
PAKs to focal complexes and also localizes PAKs to PIX
targets Cdc43 and Rac, leading to the activation of
PAKs. 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 = 33.8 bits (78), Expect = 0.006
Identities = 13/40 (32%), Positives = 21/40 (52%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA F+++ + + LSF+KGDI+ V + W
Sbjct: 2 VRAKFNFEGT-------NEDELSFDKGDIITVTQVVEGGW 34
>gnl|CDD|212789 cd11855, SH3_Sho1p, Src homology 3 domain of High osmolarity
signaling protein Sho1p. Sho1p (or Sho1), also called
SSU81 (Suppressor of SUA8-1 mutation), is a yeast
membrane protein that regulates adaptation to high salt
conditions by activating the HOG (high-osmolarity
glycerol) pathway. High salt concentrations lead to the
localization to the membrane of the MAPKK Pbs2, which is
then activated by the MAPKK Ste11 and in turn, activates
the MAPK Hog1. Pbs2 is localized to the membrane though
the interaction of its PxxP motif with the SH3 domain of
Sho1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity. 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 = 55
Score = 33.9 bits (78), Expect = 0.006
Identities = 18/42 (42%), Positives = 21/42 (50%), Gaps = 7/42 (16%)
Query: 229 RVRAHFDYDAS-SDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
R RA + YDAS DP LSF KG+IL V +W
Sbjct: 1 RARALYPYDASPDDPN------ELSFEKGEILEVSDTSGKWW 36
>gnl|CDD|217245 pfam02828, L27, L27 domain. The L27 domain is found in receptor
targeting proteins Lin-2 and Lin-7.
Length = 51
Score = 33.8 bits (78), Expect = 0.006
Identities = 24/49 (48%), Positives = 33/49 (67%)
Query: 68 AMQISLEVLDVLLSRLALNDDCKELFVLLQRPNLQGLLCAHDAVAQKDY 116
A+Q +LE+L+ L S L ++D EL +LQ P+LQ LL HD VA+K Y
Sbjct: 1 AVQRALELLEELQSLLEASEDLAELRKVLQSPHLQSLLEVHDKVAEKVY 49
Score = 31.1 bits (71), Expect = 0.065
Identities = 17/48 (35%), Positives = 26/48 (54%), Gaps = 1/48 (2%)
Query: 12 SVSSLLETLQESQSTFSANDEELLFLSSLLQSKELNALVHVHNSIVNE 59
+V LE L+E QS E+L L +LQS L +L+ VH+ + +
Sbjct: 1 AVQRALELLEELQSL-LEASEDLAELRKVLQSPHLQSLLEVHDKVAEK 47
>gnl|CDD|212884 cd11951, SH3_GRAP_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein. GRAP is a GRB-2 like
adaptor protein that is highly expressed in lymphoid
tissues. It acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. It
has been identified as a regulator of TGFbeta signaling
in diabetic kidney tubules and may have a role in the
pathogenesis of the disease. GRAP contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domains (SH3c) of the related
proteins, GRB2 and GRAP2, have been shown to bind to
classical PxxP motif ligands, as well as to
non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
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 = 33.6 bits (77), Expect = 0.007
Identities = 14/40 (35%), Positives = 22/40 (55%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V+A +D+ ++ DP LSF +GDI+ V+ D W
Sbjct: 2 VQAQYDF-SAEDPS------QLSFRRGDIIEVLDCPDPNW 34
>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 = 34.1 bits (78), Expect = 0.007
Identities = 18/43 (41%), Positives = 25/43 (58%), Gaps = 7/43 (16%)
Query: 230 VRAHFDYDASSDPYIPCK--DAGLSFNKGDILHVV-SQDDAYW 269
+RA FDYD + D C LSF GD+LHV+ + D+ +W
Sbjct: 4 IRALFDYDKTKD----CGFLSQALSFRFGDVLHVIDAGDEEWW 42
>gnl|CDD|212774 cd11840, SH3_Intersectin_5, Fifth Src homology 3 domain (or SH3E)
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 fifth SH3 domain (or SH3E) of
ITSN1 has been shown to bind many protein partners
including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2,
N-WASP, and synaptojanin-1, among others. 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 = 33.9 bits (78), Expect = 0.007
Identities = 17/41 (41%), Positives = 24/41 (58%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+V A F Y A ++ LSF KGDI++V+S+DD W
Sbjct: 1 QVIALFPYTAQNEDE-------LSFQKGDIINVLSKDDPDW 34
>gnl|CDD|226483 COG3975, COG3975, Predicted protease with the C-terminal PDZ domain
[General function prediction only].
Length = 558
Score = 37.0 bits (86), Expect = 0.007
Identities = 18/72 (25%), Positives = 31/72 (43%), Gaps = 3/72 (4%)
Query: 133 ETVKIVQLVKSNEPLGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVE 192
E + K E +K E G + V GG A ++GL GD++ +NGI+ +
Sbjct: 437 ERFGLTFTPKPREAYYLGLKVKSEGGHEKITFVFPGGPAYKAGLS-PGDKIVAINGISDQ 495
Query: 193 GK--TPGDVLKI 202
D +++
Sbjct: 496 LDRYKVNDKIQV 507
>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 = 33.8 bits (78), Expect = 0.008
Identities = 13/40 (32%), Positives = 18/40 (45%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VR + YD S D P +SF D LH+ + + W
Sbjct: 3 VRTNVGYDGSLDDDSPVPGYAVSFEAKDFLHIKEKYNNDW 42
>gnl|CDD|212961 cd12028, SH3_ZO-3, Src homology 3 domain of the Tight junction
protein, Zonula occludens protein 3. ZO-3 is a
scaffolding protein that associates with other ZO
proteins and other proteins of the tight junction,
zonula adherens, and gap junctions. ZO proteins play
roles in regulating cytoskeletal dynamics at these cell
junctions. ZO-3 is critical for epidermal barrier
function. It regulates cyclin D1-dependent cell
proliferation. It is considered 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. The C-terminal region of ZO-3 is the
smallest of the three ZO proteins. The SH3 domain of the
related protein ZO-1 has been shown to bind ZONAB, ZAK,
afadin, and Galpha12. 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 = 65
Score = 33.7 bits (77), Expect = 0.009
Identities = 12/33 (36%), Positives = 19/33 (57%), Gaps = 7/33 (21%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV 262
+R HFDY+ +GLSF +G++ HV+
Sbjct: 5 IRTHFDYEPDPP-------SGLSFTRGEVFHVL 30
>gnl|CDD|212692 cd11758, SH3_CRK_N, N-terminal Src Homology 3 domain of Ct10
Regulator of Kinase adaptor proteins. CRK adaptor
proteins consists of SH2 and SH3 domains, which bind
tyrosine-phosphorylated peptides and proline-rich
motifs, respectively. They function downstream of
protein tyrosine kinases in many signaling pathways
started by various extracellular signals, including
growth and differentiation factors. Cellular CRK (c-CRK)
contains a single SH2 domain, followed by N-terminal and
C-terminal SH3 domains. It is involved in the regulation
of many cellular processes including cell growth,
motility, adhesion, and apoptosis. CRK has been
implicated in the malignancy of various human cancers.
The N-terminal SH3 domain of CRK binds a number of
target proteins including DOCK180, C3G, SOS, and cABL.
The CRK family includes two alternatively spliced
protein forms, CRKI and CRKII, that are expressed by the
CRK gene, and the CRK-like (CRKL) protein, which is
expressed by a distinct gene (CRKL). 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 = 55
Score = 33.5 bits (77), Expect = 0.010
Identities = 14/42 (33%), Positives = 21/42 (50%), Gaps = 7/42 (16%)
Query: 228 IRVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA FD+ + D +P F KG+IL V+ + + W
Sbjct: 1 EYVRALFDFPGNDDEDLP-------FKKGEILTVIRKPEEQW 35
>gnl|CDD|212696 cd11762, SH3_FCHSD_2, Second Src Homology 3 domain of FCH and
double SH3 domains proteins. This group is composed of
FCH and double SH3 domains protein 1 (FCHSD1) and
FCHSD2. These proteins have a common domain structure
consisting of an N-terminal F-BAR (FES-CIP4 Homology and
Bin/Amphiphysin/Rvs), two SH3, and C-terminal
proline-rich domains. They have only been characterized
in silico and their functions remain unknown. This group
also includes the insect protein, nervous wreck, which
acts as a regulator of synaptic growth signaling. 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 = 57
Score = 32.8 bits (75), Expect = 0.017
Identities = 16/45 (35%), Positives = 24/45 (53%), Gaps = 12/45 (26%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQ-----DDAYW 269
VRA +DY+A SD LSF +G I+ ++ + DD +W
Sbjct: 2 VRALYDYEAQSD-------EELSFPEGAIIRILRKDDNGVDDGWW 39
>gnl|CDD|212959 cd12026, SH3_ZO-1, Src homology 3 domain of the Tight junction
protein, Zonula occludens protein 1. ZO-1 is a
scaffolding protein that associates with other ZO
proteins and other proteins of the tight junction,
zonula adherens, and gap junctions. ZO proteins play
roles in regulating cytoskeletal dynamics at these cell
junctions. ZO-1 plays an essential role in embryonic
development. It regulates the assembly and dynamics of
the cortical cytoskeleton at cell-cell junctions. It is
considered 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. The C-terminal
region of ZO-1 is the largest of the three ZO proteins
and contains an actin-binding region and domains of
unknown function designated alpha and ZU5. The SH3
domain of ZO-1 has been shown to bind ZONAB, ZAK,
afadin, and Galpha12. 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 = 65
Score = 32.7 bits (74), Expect = 0.019
Identities = 16/33 (48%), Positives = 21/33 (63%), Gaps = 7/33 (21%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVV 262
+R HF+Y+ S PY GLSFNKG++ VV
Sbjct: 5 IRTHFEYEKES-PY------GLSFNKGEVFRVV 30
>gnl|CDD|212922 cd11989, SH3_Intersectin1_2, Second Src homology 3 domain (or SH3B)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. 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 = 52
Score = 32.4 bits (73), Expect = 0.025
Identities = 12/28 (42%), Positives = 18/28 (64%)
Query: 242 PYIPCKDAGLSFNKGDILHVVSQDDAYW 269
P+ KD L+FNK D++ V+ Q D +W
Sbjct: 7 PWRAKKDNHLNFNKNDVITVLEQQDMWW 34
>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 = 32.2 bits (74), Expect = 0.026
Identities = 15/40 (37%), Positives = 20/40 (50%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
A +DY+A +D D LSF KGD L ++ D W
Sbjct: 2 YVALYDYEARTD-----DD--LSFKKGDRLQILDDSDGDW 34
>gnl|CDD|212890 cd11957, SH3_RUSC2, Src homology 3 domain of RUN and SH3
domain-containing protein 2. RUSC2, also called Iporin
or Interacting protein of Rab1, is expressed
ubiquitously with highest amounts in the brain and
testis. It interacts with the small GTPase Rab1 and the
Golgi matrix protein GM130, and may function in linking
GTPases to certain intracellular signaling pathways.
RUSC proteins are adaptor proteins consisting of RUN,
leucine zipper, and SH3 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 = 52
Score = 31.8 bits (72), Expect = 0.034
Identities = 14/27 (51%), Positives = 18/27 (66%)
Query: 243 YIPCKDAGLSFNKGDILHVVSQDDAYW 269
+I + LSFNKGDIL V+S+ D W
Sbjct: 8 HIATEPGQLSFNKGDILQVLSRADGDW 34
>gnl|CDD|212739 cd11805, SH3_GRB2_like_C, C-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have
been shown to bind to classical PxxP motif ligands, as
well as to non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
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 = 31.8 bits (73), Expect = 0.035
Identities = 12/41 (29%), Positives = 19/41 (46%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RV+A +D++ L F +GDI+ V+ D W
Sbjct: 1 RVQALYDFNPQEP-------GELEFRRGDIITVLDSSDPDW 34
>gnl|CDD|212760 cd11826, SH3_Abi, Src homology 3 domain of Abl Interactor proteins.
Abl interactor (Abi) proteins are adaptor proteins
serving as binding partners and substrates of Abl
tyrosine kinases. They are involved in regulating actin
cytoskeletal reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. They localize to sites of actin
polymerization in epithelial adherens junction and
immune synapses, as well as to the leading edge of
lamellipodia. Vertebrates contain two Abi proteins, Abi1
and Abi2. Abi1 displays a wide expression pattern while
Abi2 is highly expressed in the eye and brain. Abi
proteins contain a homeobox homology domain, a
proline-rich region, and a SH3 domain. The SH3 domain of
Abi binds to a PxxP motif in Abl. 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 = 31.5 bits (72), Expect = 0.040
Identities = 16/41 (39%), Positives = 23/41 (56%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+V A +DY A KD LSF +GDI++V ++D W
Sbjct: 1 KVVALYDYTAD-------KDDELSFQEGDIIYVTKKNDDGW 34
>gnl|CDD|212811 cd11878, SH3_Bem1p_1, First Src Homology 3 domain of Bud emergence
protein 1 and similar domains. Members of this
subfamily bear similarity to Saccharomyces cerevisiae
Bem1p, containing two Src Homology 3 (SH3) domains at
the N-terminus, a central PX domain, and a C-terminal
PB1 domain. Bem1p is a scaffolding protein that is
critical for proper Cdc42p activation during bud
formation in yeast. During budding and mating, Bem1p
migrates to the plasma membrane where it can serve as an
adaptor for Cdc42p and some other proteins. Bem1p also
functions as an effector of the G1 cyclin Cln3p and the
cyclin-dependent kinase Cdc28p in promoting vacuolar
fusion. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 54
Score = 31.5 bits (72), Expect = 0.041
Identities = 15/38 (39%), Positives = 22/38 (57%), Gaps = 9/38 (23%)
Query: 230 VRAHFDYDASSDPYIPCKDAG-LSFNKGDILHVVSQDD 266
+RA +DY A + G LSF+KGD HV+ ++D
Sbjct: 2 IRALYDYRAQT--------PGELSFSKGDFFHVIGEED 31
>gnl|CDD|212724 cd11790, SH3_Amphiphysin, Src Homology 3 domain of Amphiphysin and
related domains. Amphiphysins function primarily in
endocytosis and other membrane remodeling events. They
exist in several isoforms and mammals possess two
amphiphysin proteins from distinct genes. Amphiphysin I
proteins, enriched in the brain and nervous system,
contain domains that bind clathrin, Adaptor Protein
complex 2 (AP2), dynamin, and synaptojanin. They
function in synaptic vesicle endocytosis. Human
autoantibodies to amphiphysin I hinder GABAergic
signaling and contribute to the pathogenesis of
paraneoplastic stiff-person syndrome. Some amphiphysin
II isoforms, also called Bridging integrator 1 (Bin1),
are localized in many different tissues and may function
in intracellular vesicle trafficking. In skeletal
muscle, Bin1 plays a role in the organization and
maintenance of the T-tubule network. Mutations in Bin1
are associated with autosomal recessive centronuclear
myopathy. Amphiphysins contain an N-terminal BAR domain
with an additional N-terminal amphipathic helix (an
N-BAR), a variable central domain, and a C-terminal SH3
domain. The SH3 domain of amphiphysins bind proline-rich
motifs present in binding partners such as dynamin,
synaptojanin, and nsP3. It also belongs to a subset of
SH3 domains that bind ubiquitin in a site that overlaps
with the peptide binding site. 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 = 64
Score = 31.5 bits (72), Expect = 0.062
Identities = 15/38 (39%), Positives = 20/38 (52%), Gaps = 7/38 (18%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDD 266
+VRA DY A D L+F KGD++ V+ DD
Sbjct: 4 KVRATHDYTAEDT------DE-LTFEKGDVILVIPFDD 34
>gnl|CDD|212715 cd11781, SH3_Sorbs_1, First Src Homology 3 domain of Sorbin and SH3
domain containing (Sorbs) proteins and similar domains.
This family, also called the vinexin family, is composed
predominantly of adaptor proteins containing one sorbin
homology (SoHo) and three SH3 domains. Members include
the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or
ArgBP2), Vinexin (or Sorbs3), and similar domains. They
are involved in the regulation of cytoskeletal
organization, cell adhesion, and growth factor
signaling. Members of this family bind multiple partners
including signaling molecules like c-Abl, c-Arg, Sos,
and c-Cbl, as well as cytoskeletal molecules such as
vinculin and afadin. They may have overlapping
functions. 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 = 30.8 bits (70), Expect = 0.078
Identities = 14/39 (35%), Positives = 20/39 (51%), Gaps = 7/39 (17%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RA + + A S K+ LS KGDI+++ Q D W
Sbjct: 3 RALYPFKAQSA-----KE--LSLKKGDIIYIRRQIDKNW 34
>gnl|CDD|177681 PLN00049, PLN00049, carboxyl-terminal processing protease;
Provisional.
Length = 389
Score = 33.6 bits (77), Expect = 0.086
Identities = 19/63 (30%), Positives = 30/63 (47%), Gaps = 1/63 (1%)
Query: 147 LGATIKTDEESGKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKTPGDVLKILQSS 206
+G +D +VV GG A R+G I GD + ++G + EG + + LQ
Sbjct: 91 VGYPTGSDGPPAGLVVVAPAPGGPAARAG-IRPGDVILAIDGTSTEGLSLYEAADRLQGP 149
Query: 207 EGT 209
EG+
Sbjct: 150 EGS 152
>gnl|CDD|212754 cd11820, SH3_STAM, Src homology 3 domain of Signal Transducing
Adaptor Molecules. STAMs were discovered as proteins
that are highly phosphorylated following cytokine and
growth factor stimulation. They function in cytokine
signaling and surface receptor degradation, as well as
regulate Golgi morphology. They associate with many
proteins including Jak2 and Jak3 tyrosine kinases, Hrs,
AMSH, and UBPY. STAM adaptor proteins contain VHS
(Vps27, Hrs, STAM homology), ubiquitin interacting
(UIM), and SH3 domains. There are two vertebrate STAMs,
STAM1 and STAM2, which may be functionally redundant;
vertebrate STAMs contain ITAM motifs. They are part of
the endosomal sorting complex required for transport
(ESCRT-0). STAM2 deficiency in mice did not cause any
obvious abnormality, while STAM1 deficiency resulted in
growth retardation. Loss of both STAM1 and STAM2 in mice
proved lethal, indicating that STAMs are important for
embryonic development. 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 = 54
Score = 30.5 bits (69), Expect = 0.092
Identities = 13/42 (30%), Positives = 23/42 (54%), Gaps = 7/42 (16%)
Query: 228 IRVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+VRA +D++A+ +D L+F G+I+ V+ D W
Sbjct: 1 RKVRALYDFEAA-------EDNELTFKAGEIITVLDDSDPNW 35
>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 = 30.8 bits (69), Expect = 0.11
Identities = 12/40 (30%), Positives = 19/40 (47%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VR + Y A+ + +P +SF D LHV + + W
Sbjct: 8 VRTNVGYSAAHEDDVPVPGMAISFEAKDFLHVKEKFNNDW 47
>gnl|CDD|212720 cd11786, SH3_SH3RF_1, First Src Homology 3 domain of SH3 domain
containing ring finger proteins. This model represents
the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or
POSHER), SH3RF3 (POSH2), and similar domains. Members of
this family are scaffold proteins that function as E3
ubiquitin-protein ligases. They all contain an
N-terminal RING finger domain and multiple SH3 domains;
SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has
three. SH3RF1 plays a role in calcium homeostasis
through the control of the ubiquitin domain protein
Herp. It may also have a role in regulating death
receptor mediated and JNK mediated apoptosis. SH3RF3
interacts with p21-activated kinase 2 (PAK2) and
GTP-loaded Rac1. It may play a role in regulating JNK
mediated apoptosis in certain conditions. SH3RF2 acts as
an anti-apoptotic regulator of the JNK pathway by
binding to and promoting the degradation of SH3RF1. 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 = 30.4 bits (69), Expect = 0.11
Identities = 13/40 (32%), Positives = 21/40 (52%), Gaps = 9/40 (22%)
Query: 231 RAHFDYDASSDPYIPCKDAG-LSFNKGDILHVVSQDDAYW 269
+A ++Y+ K+ G LSF KGDI+ + + D W
Sbjct: 3 KALYNYEG--------KEPGDLSFKKGDIILLRKRIDENW 34
>gnl|CDD|212893 cd11960, SH3_Abp1_eu, Src homology 3 domain of eumetazoan
Actin-binding protein 1. Abp1, also called drebrin-like
protein, is an adaptor protein that functions in
receptor-mediated endocytosis and vesicle trafficking.
It contains an N-terminal actin-binding module, the
actin-depolymerizing factor (ADF) homology domain, a
helical domain, and a C-terminal SH3 domain. Mammalian
Abp1, unlike yeast Abp1, does not contain an acidic
domain that interacts with the Arp2/3 complex. It
regulates actin dynamics indirectly by interacting with
dynamin and WASP family proteins. Abp1 deficiency causes
abnormal organ structure and function of the spleen,
heart, and lung of mice. 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 = 54
Score = 29.7 bits (67), Expect = 0.18
Identities = 16/42 (38%), Positives = 23/42 (54%), Gaps = 8/42 (19%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQ-DDAYW 269
R RA +DY A+ D I SF+ GDI+ + Q D+ +W
Sbjct: 1 RARALYDYQAADDTEI-------SFDPGDIITDIEQIDEGWW 35
>gnl|CDD|212761 cd11827, SH3_MyoIe_If_like, Src homology 3 domain of Myosins Ie,
If, and similar proteins. Myosins Ie (MyoIe) and If
(MyoIf) are nonmuscle, unconventional, long tailed,
class I myosins containing an N-terminal motor domain
and a myosin tail with TH1, TH2, and SH3 domains. MyoIe
interacts with the endocytic proteins, dynamin and
synaptojanin-1, through its SH3 domain; it may play a
role in clathrin-dependent endocytosis. In the kidney,
MyoIe is critical for podocyte function and normal
glomerular filtration. Mutations in MyoIe is associated
with focal segmental glomerulosclerosis, a disease
characterized by massive proteinuria and progression to
end-stage kidney disease. MyoIf is predominantly
expressed in the immune system; it plays a role in
immune cell motility and innate immunity. Mutations in
MyoIf may be associated with the loss of hearing. The
MyoIf gene has also been found to be fused to the MLL
(Mixed lineage leukemia) gene in infant acute myeloid
leukemias (AML). 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 = 29.3 bits (66), Expect = 0.30
Identities = 14/42 (33%), Positives = 24/42 (57%), Gaps = 9/42 (21%)
Query: 229 RVRAHFDYDASSDPYIPCKDAG-LSFNKGDILHVVSQDDAYW 269
+ +A + YDA +D LSFN+GDI+ ++ +D + W
Sbjct: 1 QCKALYAYDA--------QDTDELSFNEGDIIEILKEDPSGW 34
>gnl|CDD|212744 cd11810, SH3_RUSC1_like, Src homology 3 domain of RUN and SH3
domain-containing proteins 1 and 2. RUSC1 and RUSC2,
that were originally characterized in silico. They are
adaptor proteins consisting of RUN, leucine zipper, and
SH3 domains. RUSC1, also called NESCA (New molecule
containing SH3 at the carboxy-terminus), is highly
expressed in the brain and is translocated to the
nuclear membrane from the cytoplasm upon stimulation
with neurotrophin. It plays a role in facilitating
neurotrophin-dependent neurite outgrowth. It also
interacts with NEMO (or IKKgamma) and may function in
NEMO-mediated activation of NF-kB. RUSC2, also called
Iporin, is expressed ubiquitously with highest amounts
in the brain and testis. It interacts with the small
GTPase Rab1 and the Golgi matrix protein GM130, and may
function in linking GTPases to certain intracellular
signaling pathways. 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 = 50
Score = 28.9 bits (65), Expect = 0.33
Identities = 11/27 (40%), Positives = 16/27 (59%)
Query: 243 YIPCKDAGLSFNKGDILHVVSQDDAYW 269
++ LSF KGDIL V+++ D W
Sbjct: 8 HVATDSGQLSFRKGDILRVIARVDDDW 34
>gnl|CDD|212755 cd11821, SH3_ASAP, Src homology 3 domain of ArfGAP with SH3 domain,
ankyrin repeat and PH domain containing proteins. ASAPs
are Arf GTPase activating proteins (GAPs) and they
function in regulating cell growth, migration, and
invasion. They contain an N-terminal BAR domain,
followed by a Pleckstrin homology (PH) domain, an Arf
GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3
domain. Vertebrates contain at least three members,
ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not
seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2
show GTPase activating protein (GAP) activity towards
Arf1 and Arf5. They do not show GAP activity towards
Arf6, but are able to mediate Arf6 signaling by binding
stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. 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 = 28.8 bits (65), Expect = 0.34
Identities = 14/41 (34%), Positives = 23/41 (56%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RVRA +D A +D L+F++G+I+ V ++D W
Sbjct: 1 RVRALYDCQADNDDE-------LTFSEGEIIVVTGEEDDEW 34
>gnl|CDD|212980 cd12047, SH3_Noxa1_C, C-terminal Src Homology 3 domain of NADPH
oxidase activator 1. Noxa1 is a homolog of p67phox and
is a cytosolic subunit of the nonphagocytic NADPH
oxidase complex Nox1, which catalyzes the transfer of
electrons from NADPH to molecular oxygen to form
superoxide. Noxa1 is co-expressed with Nox1 in colon,
stomach, uterus, prostate, and vascular smooth muscle
cells, consistent with its regulatory role. It does not
interact with p40phox, unlike p67phox, making Nox1
activity independent of p40phox, unlike Nox2. Noxa1
contains TPR, PB1, and C-terminal SH3 domains, but lacks
the central SH3 domain that is present in p67phox. The
TPR domain binds activated GTP-bound Rac. The C-terminal
SH3 domain binds the polyproline motif found at the
C-terminus of Noxo1, a homolog of p47phox. 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 = 28.6 bits (64), Expect = 0.45
Identities = 11/41 (26%), Positives = 19/41 (46%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
R+ A DY A L F++GD + ++S+ + W
Sbjct: 1 RMVAQHDYSAQGP-------EDLEFSQGDTIDILSEVNQEW 34
>gnl|CDD|212897 cd11964, SH3_STAM1, Src homology 3 domain of Signal Transducing
Adaptor Molecule 1. STAM1 is part of the endosomal
sorting complex required for transport (ESCRT-0) and is
involved in sorting ubiquitinated cargo proteins from
the endosome. It may also be involved in the regulation
of IL2 and GM-CSF mediated signaling, and has been
implicated in neural cell survival. STAMs were
discovered as proteins that are highly phosphorylated
following cytokine and growth factor stimulation. They
function in cytokine signaling and surface receptor
degradation, as well as regulate Golgi morphology. They
associate with many proteins including Jak2 and Jak3
tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor
proteins contain VHS (Vps27, Hrs, STAM homology),
ubiquitin interacting (UIM), and SH3 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 = 55
Score = 28.8 bits (64), Expect = 0.46
Identities = 13/41 (31%), Positives = 23/41 (56%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+VRA +D++A+ +D L+F GDI+ ++ D W
Sbjct: 2 KVRAIYDFEAA-------EDNELTFKAGDIITILDDSDPNW 35
>gnl|CDD|212923 cd11990, SH3_Intersectin2_2, Second Src homology 3 domain (or SH3B)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The second SH3 domain (or
SH3B) of ITSN2 is expected to bind protein partners,
similar to ITSN1 which 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 = 52
Score = 28.5 bits (63), Expect = 0.55
Identities = 10/23 (43%), Positives = 16/23 (69%)
Query: 247 KDAGLSFNKGDILHVVSQDDAYW 269
KD L+F+K DI+ V+ Q + +W
Sbjct: 12 KDNHLNFSKNDIITVLEQQENWW 34
>gnl|CDD|212738 cd11804, SH3_GRB2_like_N, N-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
N-terminal SH3 domain of GRB2 binds to Sos and
Sos-derived proline-rich peptides. 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 = 28.5 bits (64), Expect = 0.56
Identities = 15/40 (37%), Positives = 22/40 (55%), Gaps = 8/40 (20%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVS-QDDAYW 269
A D+ A+++ D LSF KG IL V++ +DD W
Sbjct: 3 VAKHDFKATAE------DE-LSFKKGSILKVLNMEDDPNW 35
>gnl|CDD|212785 cd11851, SH3_RIM-BP, Src homology 3 domains of Rab3-interacting
molecules (RIMs) binding proteins. RIMs binding
proteins (RBPs, RIM-BPs) associate with calcium channels
present in photoreceptors, neurons, and hair cells; they
interact simultaneously with specific calcium channel
subunits, and active zone proteins, RIM1 and RIM2. RIMs
are part of the matrix at the presynaptic active zone
and are associated with synaptic vesicles through their
interaction with the small GTPase Rab3. RIM-BPs play a
role in regulating synaptic transmission by serving as
adaptors and linking calcium channels with the synaptic
vesicle release machinery. RIM-BPs contain three SH3
domains and two to three fibronectin III repeats.
Invertebrates contain one, while vertebrates contain at
least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also
called peripheral-type benzodiazapine receptor
associated protein 1 (PRAX-1). Mammals contain a third
protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly
expressed in the brain where they display overlapping
but distinct expression patterns, while RIM-BP3 is
almost exclusively expressed in the testis and is
essential in spermiogenesis. The SH3 domains of RIM-BPs
bind to the PxxP motifs of RIM1, RIM2, and L-type
(alpha1D) and N-type (alpha1B) calcium channel subunits.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity. 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 = 28.4 bits (64), Expect = 0.69
Identities = 10/39 (25%), Positives = 18/39 (46%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDA 267
+ A +DY+ + + LSF+ GD++ V D
Sbjct: 1 LMVALYDYNPETMSPNDDPEEELSFHAGDVVRVYGPMDE 39
>gnl|CDD|212902 cd11969, SH3_PLCgamma2, Src homology 3 domain of Phospholipase C
(PLC) gamma 2. PLCgamma2 is primarily expressed in
haematopoietic cells, specifically in B cells. It is
activated by tyrosine phosphorylation by B cell receptor
(BCR) kinases and is recruited to the plasma membrane
where its substrate is located. It is required in
pre-BCR signaling and in the maturation of B cells. PLCs
catalyze the hydrolysis of phosphatidylinositol
(4,5)-bisphosphate [PtdIns(4,5)P2] to produce
Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3
initiates the calcium signaling cascade while DAG
functions as an activator of PKC. PLCgamma contains a
Pleckstrin homology (PH) domain followed by an
elongation factor (EF) domain, two catalytic regions of
PLC domains that flank two tandem SH2 domains, followed
by a SH3 domain and C2 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 = 55
Score = 28.3 bits (63), Expect = 0.70
Identities = 16/41 (39%), Positives = 22/41 (53%), Gaps = 9/41 (21%)
Query: 230 VRAHFDYDAS-SDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V+A +DY A SD LSF KG ++H VS++ W
Sbjct: 2 VKALYDYRAKRSDE--------LSFCKGALIHNVSKETGGW 34
>gnl|CDD|212896 cd11963, SH3_STAM2, Src homology 3 domain of Signal Transducing
Adaptor Molecule 2. STAM2, also called EAST (Epidermal
growth factor receptor-associated protein with SH3 and
TAM domain) or Hbp (Hrs binding protein), is part of the
endosomal sorting complex required for transport
(ESCRT-0). It plays a role in sorting mono-ubiquinated
endosomal cargo for trafficking to the lysosome for
degradation. It is also involved in the regulation of
exocytosis. STAMs were discovered as proteins that are
highly phosphorylated following cytokine and growth
factor stimulation. They function in cytokine signaling
and surface receptor degradation, as well as regulate
Golgi morphology. They associate with many proteins
including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and
UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs,
STAM homology), ubiquitin interacting (UIM), and SH3
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 = 57
Score = 28.4 bits (63), Expect = 0.71
Identities = 14/41 (34%), Positives = 23/41 (56%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+VRA +D++A +D L+F G+I+ V+ DA W
Sbjct: 3 KVRALYDFEA-------VEDNELTFKHGEIIIVLDDSDANW 36
>gnl|CDD|226011 COG3480, SdrC, Predicted secreted protein containing a PDZ domain
[Signal transduction mechanisms].
Length = 342
Score = 30.5 bits (69), Expect = 0.79
Identities = 31/153 (20%), Positives = 52/153 (33%), Gaps = 29/153 (18%)
Query: 94 VLLQRPNLQGLLCAHDAVAQKDYYPRLPEIPQELVDDEEETVKIVQLVKSNEPLGATIKT 153
V ++ L L A + Q++ PR ++ DEE + +++++ A
Sbjct: 61 VSVRDATLITYLYAWLSP-QEEIVPR-EQVTPPGESDEEYERRNQFYMETSQN-AAIYAA 117
Query: 154 DEESGKIV--------VARVMHGGAADRSGLIHVGDEVCEVNGINVE----------GKT 195
+ +GK V V V+ G + GD + V+G K
Sbjct: 118 YKYAGKPVEVTYAGVYVLSVIDNSPF--KGKLEAGDTIIAVDGEPFTSSDELIDYVSSKK 175
Query: 196 PGDVLKIL------QSSEGTITFKLIPADNKLG 222
PGD + I TIT + K G
Sbjct: 176 PGDEVTIDYERHNETPEIVTITLIKNDDNGKAG 208
>gnl|CDD|233695 TIGR02037, degP_htrA_DO, periplasmic serine protease, Do/DeqQ
family. This family consists of a set proteins various
designated DegP, heat shock protein HtrA, and protease
DO. The ortholog in Pseudomonas aeruginosa is designated
MucD and is found in an operon that controls mucoid
phenotype. This family also includes the DegQ (HhoA)
paralog in E. coli which can rescue a DegP mutant, but
not the smaller DegS paralog, which cannot. Members of
this family are located in the periplasm and have
separable functions as both protease and chaperone.
Members have a trypsin domain and two copies of a PDZ
domain. This protein protects bacteria from thermal and
other stresses and may be important for the survival of
bacterial pathogens.// The chaperone function is
dominant at low temperatures, whereas the proteolytic
activity is turned on at elevated temperatures [Protein
fate, Protein folding and stabilization, Protein fate,
Degradation of proteins, peptides, and glycopeptides].
Length = 428
Score = 30.6 bits (70), Expect = 0.80
Identities = 12/31 (38%), Positives = 19/31 (61%), Gaps = 1/31 (3%)
Query: 162 VARVMHGGAADRSGLIHVGDEVCEVNGINVE 192
VA+V+ G A+++GL GD + VNG +
Sbjct: 261 VAQVLPGSPAEKAGL-KAGDVITSVNGKPIS 290
>gnl|CDD|162081 TIGR00874, talAB, transaldolase. This family includes the majority
of known and predicted transaldolase sequences,
including E. coli TalA and TalB. It excluded two other
families. The first includes E. coli transaldolase-like
protein TalC. The second family includes the putative
transaldolases of Helicobacter pylori and Mycobacterium
tuberculosis [Energy metabolism, Pentose phosphate
pathway].
Length = 317
Score = 30.1 bits (68), Expect = 0.98
Identities = 14/62 (22%), Positives = 27/62 (43%), Gaps = 1/62 (1%)
Query: 181 DEVCEVNGINVEGKTPGDVLKILQSSEGTITFKLIPADNKLGYRESKIRVRAHFDYDASS 240
+E+ + G + +P +L L+ S G + KL P K ++ I + F + +
Sbjct: 229 EEILALAGCDRLTISP-ALLDELKESTGPVERKLDPESAKKVDKQPIILDESEFRFLHNE 287
Query: 241 DP 242
D
Sbjct: 288 DA 289
>gnl|CDD|212883 cd11950, SH3_GRAP2_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also has roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domain of GRAP2 binds to
different motifs found in substrate peptides including
the typical PxxP motif in hematopoietic progenitor
kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and
the RxxxxK motif in phosphatase-like protein HD-PTP. SH3
domains are protein interaction domains that typically
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 = 27.9 bits (62), Expect = 1.0
Identities = 13/40 (32%), Positives = 21/40 (52%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA +D++A +D L FN GD++ V+ + W
Sbjct: 2 VRALYDFEAL-------EDDELGFNSGDVIEVLDSSNPSW 34
>gnl|CDD|212721 cd11787, SH3_SH3RF_2, Second Src Homology 3 domain of SH3 domain
containing ring finger proteins. This model represents
the second SH3 domain of SH3RF1 (or POSH), SH3RF2 (or
POSHER), SH3RF3 (POSH2), and similar domains. Members of
this family are scaffold proteins that function as E3
ubiquitin-protein ligases. They all contain an
N-terminal RING finger domain and multiple SH3 domains;
SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has
three. SH3RF1 plays a role in calcium homeostasis
through the control of the ubiquitin domain protein
Herp. It may also have a role in regulating death
receptor mediated and JNK mediated apoptosis. SH3RF3
interacts with p21-activated kinase 2 (PAK2) and
GTP-loaded Rac1. It may play a role in regulating JNK
mediated apoptosis in certain conditions. SH3RF2 acts as
an anti-apoptotic regulator of the JNK pathway by
binding to and promoting the degradation of SH3RF1. 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 = 27.7 bits (62), Expect = 1.1
Identities = 11/39 (28%), Positives = 21/39 (53%), Gaps = 4/39 (10%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+A +D++ + C L+F KGD++ V+ + D W
Sbjct: 3 KALYDFEMKDEDEKDC----LTFKKGDVITVIRRVDENW 37
>gnl|CDD|212880 cd11947, SH3_GRAP2_N, N-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also have roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The N-terminal SH3 domain of the related protein
GRB2 binds to Sos and Sos-derived proline-rich peptides.
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 = 27.5 bits (61), Expect = 1.1
Identities = 15/39 (38%), Positives = 22/39 (56%), Gaps = 7/39 (17%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
R FD+ AS + LSF KGD+L ++S DD ++
Sbjct: 3 RGKFDFTASGEDE-------LSFKKGDVLKILSSDDIWF 34
>gnl|CDD|212737 cd11803, SH3_Endophilin_A, Src homology 3 domain of Endophilin-A.
Endophilins play roles in synaptic vesicle formation,
virus budding, mitochondrial morphology maintenance,
receptor-mediated endocytosis inhibition, and endosomal
sorting. They are classified into two types, A and B.
Vertebrates contain three endophilin-A isoforms (A1, A2,
and A3). Endophilin-A proteins are enriched in the brain
and play multiple roles in receptor-mediated
endocytosis. They tubulate membranes and regulate
calcium influx into neurons to trigger the activation of
the endocytic machinery. They are also involved in the
sorting of plasma membrane proteins, actin filament
assembly, and the uncoating of clathrin-coated vesicles
for fusion with endosomes. Endophilins contain an
N-terminal N-BAR domain (BAR domain with an additional
N-terminal amphipathic helix), followed by a variable
region containing proline clusters, and a C-terminal 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 = 55
Score = 27.6 bits (62), Expect = 1.1
Identities = 11/39 (28%), Positives = 20/39 (51%), Gaps = 7/39 (17%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RA +D++ ++ L F +GDI+ + +Q D W
Sbjct: 4 RALYDFEPENE-------GELGFKEGDIITLTNQIDENW 35
>gnl|CDD|212992 cd12059, SH3_MLK1-3, Src Homology 3 domain of Mixed Lineage Kinases
1, 2, and 3. MLKs 1, 2, and 3 are Serine/Threonine
Kinases (STKs), catalyzing the transfer of the
gamma-phosphoryl group from ATP to S/T residues on
protein substrates. MLKs act as mitogen-activated
protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs),
which phosphorylate and activate MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MLKs play roles in immunity and
inflammation, as well as in cell death, proliferation,
and cell cycle regulation. Little is known about the
specific function of MLK1, also called MAP3K9. It is
capable of activating the c-Jun N-terminal kinase
pathway. Mice lacking both MLK1 and MLK2 are viable,
fertile, and have normal life spans. MLK2, also called
MAP3K10, is abundant in brain, skeletal muscle, and
testis. It functions upstream of the MAPK, c-Jun
N-terminal kinase. It binds hippocalcin, a
calcium-sensor protein that protects neurons against
calcium-induced cell death. Both MLK2 and hippocalcin
may be associated with the pathogenesis of Parkinson's
disease. MLK3, also called MAP3K11, is highly expressed
in breast cancer cells and its signaling through c-Jun
N-terminal kinase has been implicated in the migration,
invasion, and malignancy of cancer cells. It also
functions as a negative regulator of Inhibitor of
Nuclear Factor-KappaB Kinase (IKK) and thus, impacts
inflammation and immunity. MLKs contain an SH3 domain, a
catalytic kinase domain, a leucine zipper, a
proline-rich region, and a CRIB domain that mediates
binding to GTP-bound Cdc42 and Rac. 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 = 58
Score = 27.4 bits (61), Expect = 1.5
Identities = 13/36 (36%), Positives = 21/36 (58%), Gaps = 7/36 (19%)
Query: 232 AHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDA 267
A FDY+AS++ L+ +GD + V+S+D A
Sbjct: 4 AVFDYEASAEDE-------LTLRRGDRVEVLSKDSA 32
>gnl|CDD|212928 cd11995, SH3_Intersectin1_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The fifth SH3 domain (or SH3E) of ITSN1 has
been shown to bind many protein partners including
SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP,
and synaptojanin-1, among others. 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 = 54
Score = 26.8 bits (59), Expect = 1.9
Identities = 10/27 (37%), Positives = 18/27 (66%)
Query: 243 YIPCKDAGLSFNKGDILHVVSQDDAYW 269
Y D L+F+KG I++V++++D W
Sbjct: 9 YTAQNDDELAFSKGQIINVLNKEDPDW 35
>gnl|CDD|212820 cd11887, SH3_Bbc1, Src Homology 3 domain of Bbc1 and similar
domains. This subfamily is composed of Saccharomyces
cerevisiae Bbc1p, also called Mti1p (Myosin tail
region-interacting protein), and similar proteins. Bbc1p
interacts with and regulates type I myosins in yeast,
Myo3p and Myo5p, which are involved in actin
cytoskeletal reorganization. It also binds and inhibits
Las17, a WASp family protein that functions as an
activator of the Arp2/3 complex. Bbc1p contains an
N-terminal SH3 domain. SH3 domains bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs; they play a role in the
regulation of enzymes by intramolecular interactions,
changing the subcellular localization of signal pathway
components and mediate multiprotein complex assemblies.
Length = 60
Score = 26.9 bits (60), Expect = 2.0
Identities = 10/41 (24%), Positives = 22/41 (53%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
+V+A + Y++ + L+F+ G ++ V ++DA W
Sbjct: 3 KVKALYPYESDHE-------DDLNFDVGQLITVTEEEDADW 36
>gnl|CDD|213018 cd12142, SH3_D21-like, Src Homology 3 domain of SH3
domain-containing protein 21 (SH3D21) and similar
proteins. N-terminal SH3 domain of the uncharacterized
protein SH3 domain-containing protein 21, and similar
uncharacterized domains, it belongs to the CD2AP-like_3
subfamily of proteins. The CD2AP-like_3 subfamily is
composed of the third SH3 domain (SH3C) of CD2AP, CIN85
(Cbl-interacting protein of 85 kDa), and similar
domains. CD2AP and CIN85 are adaptor proteins that bind
to protein partners and assemble complexes that have
been implicated in T cell activation, kidney function,
and apoptosis of neuronal cells. They also associate
with endocytic proteins, actin cytoskeleton components,
and other adaptor proteins involved in receptor tyrosine
kinase (RTK) signaling. CD2AP and the main isoform of
CIN85 contain three SH3 domains, a proline-rich region,
and a C-terminal coiled-coil domain. All of these
domains enable CD2AP and CIN85 to bind various protein
partners and assemble complexes that have been
implicated in many different functions. SH3C of both
proteins have been shown to bind to ubiquitin. 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 = 55
Score = 27.0 bits (60), Expect = 2.0
Identities = 10/30 (33%), Positives = 17/30 (56%), Gaps = 3/30 (10%)
Query: 243 YIPCKDAGLSFNKGDILHVVS---QDDAYW 269
Y P L+ KGD++ V+S +D+ +W
Sbjct: 8 YNPVAPDELALKKGDVIEVISKETEDEGWW 37
>gnl|CDD|182820 PRK10898, PRK10898, serine endoprotease; Provisional.
Length = 353
Score = 29.2 bits (66), Expect = 2.1
Identities = 12/29 (41%), Positives = 15/29 (51%), Gaps = 1/29 (3%)
Query: 160 IVVARVMHGGAADRSGLIHVGDEVCEVNG 188
IVV V G A ++G I V D + VN
Sbjct: 281 IVVNEVSPDGPAAKAG-IQVNDLIISVNN 308
>gnl|CDD|212891 cd11958, SH3_RUSC1, Src homology 3 domain of RUN and SH3
domain-containing protein 1. RUSC1, also called NESCA
(New molecule containing SH3 at the carboxy-terminus),
is highly expressed in the brain and is translocated to
the nuclear membrane from the cytoplasm upon stimulation
with neurotrophin. It plays a role in facilitating
neurotrophin-dependent neurite outgrowth. It also
interacts with NEMO (or IKKgamma) and may function in
NEMO-mediated activation of NF-kB. RUSC proteins are
adaptor proteins consisting of RUN, leucine zipper, and
SH3 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 = 51
Score = 26.7 bits (59), Expect = 2.2
Identities = 14/40 (35%), Positives = 17/40 (42%), Gaps = 8/40 (20%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
VRA D+ S LSF KG+ L V+ D W
Sbjct: 2 VRALCDHAGSES--------QLSFRKGEELQVLGTVDEDW 33
>gnl|CDD|236240 PRK08323, PRK08323, phenylhydantoinase; Validated.
Length = 459
Score = 29.4 bits (67), Expect = 2.3
Identities = 11/27 (40%), Positives = 16/27 (59%), Gaps = 2/27 (7%)
Query: 27 FSANDEELLFLSSLLQSKELNALVHVH 53
+D+ELL +L ++ EL AL VH
Sbjct: 155 LMLDDDELL--RALQRAAELGALPMVH 179
>gnl|CDD|212740 cd11806, SH3_PRMT2, Src homology 3 domain of Protein arginine
N-methyltransferase 2. PRMT2, also called HRMT1L1,
belongs to the arginine methyltransferase protein
family. It functions as a coactivator to both estrogen
receptor alpha (ER-alpha) and androgen receptor (AR),
presumably through arginine methylation. The ER-alpha
transcription factor is involved in cell proliferation,
differentiation, morphogenesis, and apoptosis, and is
also implicated in the development and progression of
breast cancer. PRMT2 and its variants are upregulated in
breast cancer cells and may be involved in modulating
the ER-alpha signaling pathway during formation of
breast cancer. PRMT2 also plays a role in regulating the
function of E2F transcription factors, which are
critical cell cycle regulators, by binding to the
retinoblastoma gene product (RB). It contains an
N-terminal SH3 domain and an AdoMet binding 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 = 53
Score = 26.6 bits (59), Expect = 2.4
Identities = 12/34 (35%), Positives = 18/34 (52%), Gaps = 1/34 (2%)
Query: 236 YDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
Y A +D ++ D+ LSF GD L V+ + W
Sbjct: 2 YVAIAD-FVATDDSQLSFESGDKLLVLRKPSVDW 34
>gnl|CDD|212809 cd11876, SH3_MLK, Src Homology 3 domain of Mixed Lineage Kinases.
MLKs are Serine/Threonine Kinases (STKs), catalyzing the
transfer of the gamma-phosphoryl group from ATP to S/T
residues on protein substrates. MLKs act as
mitogen-activated protein kinase kinase kinases (MAP3Ks,
MKKKs, MAPKKKs), which phosphorylate and activate MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. MLKs play roles in
immunity and inflammation, as well as in cell death,
proliferation, and cell cycle regulation. Mammals have
four MLKs (MLK1-4), mostly conserved in vertebrates,
which contain an SH3 domain, a catalytic kinase domain,
a leucine zipper, a proline-rich region, and a CRIB
domain that mediates binding to GTP-bound Cdc42 and Rac.
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 = 58
Score = 26.7 bits (59), Expect = 2.4
Identities = 12/36 (33%), Positives = 18/36 (50%), Gaps = 7/36 (19%)
Query: 232 AHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDA 267
A FDYDA + L+ +G + V+S+D A
Sbjct: 4 ALFDYDARGEDE-------LTLRRGQPVEVLSKDAA 32
>gnl|CDD|212792 cd11858, SH3_Myosin-I_fungi, Src homology 3 domain of Type I fungal
Myosins. Type I myosins (myosin-I) are actin-dependent
motors in endocytic actin structures and actin patches.
They play roles in membrane traffic in endocytic and
secretory pathways, cell motility, and mechanosensing.
Saccharomyces cerevisiae has two myosins-I, Myo3 and
Myo5, which are involved in endocytosis and the
polarization of the actin cytoskeleton. Myosin-I
contains an N-terminal actin-activated ATPase, a
phospholipid-binding TH1 (tail homology 1) domain, and a
C-terminal extension which includes an F-actin-binding
TH2 domain, an SH3 domain, and an acidic peptide that
participates in activating the Arp2/3complex. The SH3
domain of myosin-I is required for myosin-I-induced
actin polymerization. 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 = 55
Score = 26.6 bits (59), Expect = 2.4
Identities = 12/40 (30%), Positives = 20/40 (50%), Gaps = 9/40 (22%)
Query: 231 RAHFDYDASSDPYIPCKDAG-LSFNKGDILHVVSQDDAYW 269
+A +D+ S A LS K DI+++V ++D W
Sbjct: 3 KALYDFAGSV--------ANELSLKKDDIVYIVQKEDNGW 34
>gnl|CDD|212938 cd12005, SH3_Lck, Src homology 3 domain of Lck Protein Tyrosine
Kinase. Lck is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
Lck is expressed in T-cells and natural killer cells. It
plays a critical role in T-cell maturation, activation,
and T-cell receptor (TCR) signaling. Lck phosphorylates
ITAM (immunoreceptor tyr activation motif) sequences on
several subunits of TCRs, leading to the activation of
different second messenger cascades. Phosphorylated
ITAMs serve as binding sites for other signaling factor
such as Syk and ZAP-70, leading to their activation and
propagation of downstream events. In addition, Lck
regulates drug-induced apoptosis by interfering with the
mitochondrial death pathway. The apototic role of Lck is
independent of its primary function in T-cell signaling.
Src kinases 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). 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 = 54
Score = 26.7 bits (59), Expect = 2.5
Identities = 10/27 (37%), Positives = 14/27 (51%)
Query: 243 YIPCKDAGLSFNKGDILHVVSQDDAYW 269
Y P D L F KG+ L ++ Q +W
Sbjct: 8 YEPSHDGDLGFEKGEKLRILEQSGEWW 34
>gnl|CDD|212946 cd12013, SH3_RIM-BP_3, Third Src homology 3 domain of
Rab3-interacting molecules (RIMs) binding proteins.
RIMs binding proteins (RBPs, RIM-BPs) associate with
calcium channels present in photoreceptors, neurons, and
hair cells; they interact simultaneously with specific
calcium channel subunits, and active zone proteins, RIM1
and RIM2. RIMs are part of the matrix at the presynaptic
active zone and are associated with synaptic vesicles
through their interaction with the small GTPase Rab3.
RIM-BPs play a role in regulating synaptic transmission
by serving as adaptors and linking calcium channels with
the synaptic vesicle release machinery. RIM-BPs contain
three SH3 domains and two to three fibronectin III
repeats. Invertebrates contain one, while vertebrates
contain at least two RIM-BPs, RIM-BP1 and RIM-BP2.
RIM-BP1 is also called peripheral-type benzodiazapine
receptor associated protein 1 (PRAX-1). Mammals contain
a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are
predominantly expressed in the brain where they display
overlapping but distinct expression patterns, while
RIM-BP3 is almost exclusively expressed in the testis
and is essential in spermiogenesis. The SH3 domains of
RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and
L-type (alpha1D) and N-type (alpha1B) calcium channel
subunits. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity. 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 = 27.0 bits (60), Expect = 2.5
Identities = 13/33 (39%), Positives = 16/33 (48%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHV 261
R+ A FDYD + LSF GDI+ V
Sbjct: 1 RMVALFDYDPRESSPNVDAEVELSFRAGDIITV 33
>gnl|CDD|212777 cd11843, SH3_PACSIN, Src homology 3 domain of Protein kinase C and
Casein kinase Substrate in Neurons (PACSIN) proteins.
PACSINs, also called Synaptic dynamin-associated
proteins (Syndapins), act as regulators of cytoskeletal
and membrane dynamics. They bind both dynamin and
Wiskott-Aldrich syndrome protein (WASP), and may provide
direct links between the actin cytoskeletal machinery
through WASP and dynamin-dependent endocytosis.
Vetebrates harbor three isoforms with distinct
expression patterns and specific functions. PACSINs
contain an N-terminal F-BAR domain and a C-terminal 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 = 53
Score = 26.6 bits (59), Expect = 2.6
Identities = 13/38 (34%), Positives = 19/38 (50%), Gaps = 7/38 (18%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDD 266
VRA +DY+ + LSF GDIL + ++D
Sbjct: 1 PVRALYDYEGQ-------ESDELSFKAGDILTKLEEED 31
>gnl|CDD|213000 cd12067, SH3_MYO15A, Src Homology 3 domain of Myosin XVa. Myosin
XVa is an unconventional myosin that is critical for the
normal growth of mechanosensory stereocilia of inner ear
hair cells. Mutations in the myosin XVa gene are
associated with nonsyndromic hearing loss. Myosin XVa
contains a unique N-terminal extension followed by a
motor domain, light chain-binding IQ motifs, and a tail
consisting of a pair of MyTH4-FERM tandems separated by
a SH3 domain, and a PDZ domain. SH3 domains bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 80
Score = 27.1 bits (60), Expect = 3.1
Identities = 11/19 (57%), Positives = 15/19 (78%)
Query: 243 YIPCKDAGLSFNKGDILHV 261
Y+P A LSF+KGDI+H+
Sbjct: 8 YLPEDPALLSFHKGDIIHL 26
>gnl|CDD|212806 cd11873, SH3_CD2AP-like_1, First Src Homology 3 domain (SH3A) of
CD2-associated protein and similar proteins. This
subfamily is composed of the first SH3 domain (SH3A) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3A of both proteins bind to an atypical PXXXPR motif
at the C-terminus of Cbl and the cytoplasmic domain of
the cell adhesion protein CD2. CIN85 SH3A binds to
internal proline-rich motifs within the proline-rich
region; this intramolecular interaction serves as a
regulatory mechanism to keep CIN85 in a closed
conformation, preventing the recruitment of other
proteins. CIN85 SH3A has also been shown to bind
ubiquitin. 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 = 26.5 bits (59), Expect = 3.2
Identities = 13/40 (32%), Positives = 17/40 (42%), Gaps = 7/40 (17%)
Query: 230 VRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
V FDYDA D L+ GDI+ V + + W
Sbjct: 2 VIVEFDYDAEEP------DE-LTLKVGDIITNVKKMEEGW 34
>gnl|CDD|212723 cd11789, SH3_Nebulin_family_C, C-terminal Src Homology 3 domain of
the Nebulin family of proteins. Nebulin family proteins
contain multiple nebulin repeats, and may contain an
N-terminal LIM domain and/or a C-terminal SH3 domain.
They have molecular weights ranging from 34 to 900 kD,
depending on the number of nebulin repeats, and they all
bind actin. They are involved in the regulation of actin
filament architecture and function as stabilizers and
scaffolds for cytoskeletal structures with which they
associate, such as long actin filaments or focal
adhesions. Nebulin family proteins that contain a
C-terminal SH3 domain include the giant filamentous
protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2,
also called LIM-nebulette, is an alternatively spliced
variant of nebulette. 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 = 55
Score = 26.1 bits (58), Expect = 3.3
Identities = 14/41 (34%), Positives = 20/41 (48%), Gaps = 7/41 (17%)
Query: 229 RVRAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
R RA +DY A+ D + SF +GD++ V D W
Sbjct: 1 RYRAMYDYAAADDDEV-------SFQEGDVIINVEIIDDGW 34
>gnl|CDD|217806 pfam03944, Endotoxin_C, delta endotoxin. This family contains
insecticidal toxins produced by Bacillus species of
bacteria. During spore formation the bacteria produce
crystals of this protein. When an insect ingests these
proteins they are activated by proteolytic cleavage. The
N terminus is cleaved in all of the proteins and a C
terminal extension is cleaved in some members. Once
activated the endotoxin binds to the gut epithelium and
causes cell lysis leading to death. This activated
region of the delta endotoxin is composed of three
structural domains. The N-terminal helical domain is
involved in membrane insertion and pore formation. The
second and third domains are involved in receptor
binding.
Length = 144
Score = 27.7 bits (62), Expect = 3.6
Identities = 11/40 (27%), Positives = 17/40 (42%), Gaps = 3/40 (7%)
Query: 192 EGKTPGDVLKILQSSEGTITFKLIPADNKLGYRESKIRVR 231
G T GD+L++ S ++ YR IR+R
Sbjct: 22 PGFTGGDLLRLRTSGGLLGRLRVTNNSLSQRYR---IRIR 58
>gnl|CDD|212934 cd12001, SH3_BCAR1, Src homology 3 domain of the CAS
(Crk-Associated Substrate) scaffolding protein family
member, Breast Cancer Anti-estrogen Resistance 1.
BCAR1, also called p130cas or CASS1, is the founding
member of the CAS family of scaffolding proteins and was
originally identified through its ability to associate
with Crk. The name BCAR1 was designated because the
human gene was identified in a screen for genes that
promote resistance to tamoxifen. It is widely expressed
and its deletion is lethal in mice. It plays a role in
regulating cell motility, survival, proliferation,
transformation, cancer progression, and bacterial
pathogenesis. CAS proteins function as molecular
scaffolds to regulate protein complexes that are
involved in many cellular processes. They share a common
domain structure that includes an N-terminal SH3 domain,
an unstructured substrate domain that contains many YxxP
motifs, a serine-rich four-helix bundle, and a FAT-like
C-terminal domain. The SH3 domain of CAS proteins binds
to diverse partners including FAK, FRNK, Pyk2, PTP-PEST,
DOCK180, among others. 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 = 26.5 bits (58), Expect = 4.3
Identities = 11/23 (47%), Positives = 15/23 (65%), Gaps = 4/23 (17%)
Query: 251 LSFNKGDILHVVSQD----DAYW 269
LSF KGDI+ V+ +D D +W
Sbjct: 19 LSFRKGDIMTVLERDTQGLDGWW 41
>gnl|CDD|152310 pfam11874, DUF3394, Domain of unknown function (DUF3394). This
domain is functionally uncharacterized. This domain is
found in bacteria. This presumed domain is about 190
amino acids in length. This domain is found associated
with pfam06808.
Length = 183
Score = 27.5 bits (62), Expect = 5.0
Identities = 13/32 (40%), Positives = 19/32 (59%), Gaps = 1/32 (3%)
Query: 155 EESGKIVVARVMHGGAADRSGLIHVGDEVCEV 186
EE GK++V V G A+++G I E+ EV
Sbjct: 119 EEGGKVIVDEVEFGSPAEKAG-IDFDWEIVEV 149
>gnl|CDD|212865 cd11932, SH3_SH3RF2_2, Second Src Homology 3 domain of SH3 domain
containing ring finger 2. SH3RF2 is also called POSHER
(POSH-eliminating RING protein) or HEPP1 (heart protein
phosphatase 1-binding protein). It acts as an
anti-apoptotic regulator of the JNK pathway by binding
to and promoting the degradation of SH3RF1 (or POSH), a
scaffold protein that is required for pro-apoptotic JNK
activation. It may also play a role in cardiac functions
together with protein phosphatase 1. SH3RF2 contains an
N-terminal RING finger domain and three SH3 domains.
This model represents the second SH3 domain, located
C-terminal of the first SH3 domain at the N-terminal
half, of SH3RF2. 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 = 57
Score = 25.6 bits (56), Expect = 5.5
Identities = 14/39 (35%), Positives = 20/39 (51%), Gaps = 1/39 (2%)
Query: 231 RAHFDYDASSDPYIPCKDAGLSFNKGDILHVVSQDDAYW 269
RA +++D KD L F K DI+ V+S+ D W
Sbjct: 3 RALYNFDLKEKNREESKDC-LKFQKDDIITVISRVDENW 40
>gnl|CDD|181215 PRK08059, PRK08059, general stress protein 13; Validated.
Length = 123
Score = 26.5 bits (59), Expect = 7.2
Identities = 17/52 (32%), Positives = 30/52 (57%), Gaps = 2/52 (3%)
Query: 145 EPLGATIKTDEES-GKIVVARVMHGGAADRSGLIHVGDEVCEVNGINVEGKT 195
+P GA + DEE+ G + ++ + HG D + VGDEV +V ++V+ +
Sbjct: 19 QPYGAFVALDEETQGLVHISEITHGFVKDIHDFLSVGDEV-KVKVLSVDEEK 69
>gnl|CDD|234908 PRK01143, rpl11p, 50S ribosomal protein L11P; Validated.
Length = 163
Score = 26.8 bits (60), Expect = 8.0
Identities = 8/14 (57%), Positives = 10/14 (71%)
Query: 188 GINVEGKTPGDVLK 201
G+ VEGK P +V K
Sbjct: 133 GVTVEGKDPKEVQK 146
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
0.314 0.133 0.370
Gapped
Lambda K H
0.267 0.0830 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 13,262,752
Number of extensions: 1264016
Number of successful extensions: 1075
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1051
Number of HSP's successfully gapped: 117
Length of query: 269
Length of database: 10,937,602
Length adjustment: 95
Effective length of query: 174
Effective length of database: 6,723,972
Effective search space: 1169971128
Effective search space used: 1169971128
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: 58 (25.9 bits)