RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy12421
(168 letters)
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 87.7 bits (218), Expect = 2e-23
Identities = 29/90 (32%), Positives = 49/90 (54%), Gaps = 1/90 (1%)
Query: 58 PNFTFLLRPRVMQVRQTCKLLCCLSGKPPPTVKWYKGNREL-SKRDYSMSYSDGVVSMEI 116
P FT + +Q ++ + C ++G P PTV W+K + L S + ++Y G ++ I
Sbjct: 1 PKFTQKPKDVEVQEGESARFTCTVTGDPDPTVSWFKDGQPLRSSDRFKVTYEGGTYTLTI 60
Query: 117 IDCKPEDSGEYKCVATNKHGTDETNCVVIV 146
+ +P+D G+Y CVATN G E + + V
Sbjct: 61 SNVQPDDEGKYTCVATNSAGEAEASAELTV 90
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 63.7 bits (155), Expect = 4e-14
Identities = 28/73 (38%), Positives = 37/73 (50%), Gaps = 2/73 (2%)
Query: 76 KLLCCLSGKPPPTVKWYKGNREL--SKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
L C SG PPP V WYK +L +S+S S ++ I + PEDSG Y C ATN
Sbjct: 13 TLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATN 72
Query: 134 KHGTDETNCVVIV 146
G+ + + V
Sbjct: 73 SSGSASSGTTLTV 85
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 63.7 bits (155), Expect = 4e-14
Identities = 28/73 (38%), Positives = 37/73 (50%), Gaps = 2/73 (2%)
Query: 76 KLLCCLSGKPPPTVKWYKGNREL--SKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
L C SG PPP V WYK +L +S+S S ++ I + PEDSG Y C ATN
Sbjct: 13 TLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATN 72
Query: 134 KHGTDETNCVVIV 146
G+ + + V
Sbjct: 73 SSGSASSGTTLTV 85
>gnl|CDD|143165 cd00096, Ig, Immunoglobulin domain. Ig: immunoglobulin (Ig) domain
found in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
this group are components of immunoglobulin, neuroglia,
cell surface glycoproteins, such as, T-cell receptors,
CD2, CD4, CD8, and membrane glycoproteins, such as,
butyrophilin and chondroitin sulfate proteoglycan core
protein. A predominant feature of most Ig domains is a
disulfide bridge connecting the two beta-sheets with a
tryptophan residue packed against the disulfide bond.
Length = 74
Score = 59.8 bits (144), Expect = 9e-13
Identities = 26/71 (36%), Positives = 34/71 (47%), Gaps = 5/71 (7%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELS-----KRDYSMSYSDGVVSMEIIDCKPEDSGEYKCV 130
L C SG PPPT+ W K + L + S S G ++ I + EDSG Y CV
Sbjct: 2 TLTCLASGPPPPTITWLKNGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTYTCV 61
Query: 131 ATNKHGTDETN 141
A+N GT +
Sbjct: 62 ASNSAGTVSAS 72
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 56.3 bits (136), Expect = 2e-11
Identities = 20/64 (31%), Positives = 29/64 (45%), Gaps = 3/64 (4%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVAT 132
Q+ L C G P P + W K + L + + ++ ++ I EDSG Y CVA
Sbjct: 3 QSVTLTCPAEGNPVPNITWLKDGKPLPESNRFVASGS---TLTIKSVSLEDSGLYTCVAE 59
Query: 133 NKHG 136
N G
Sbjct: 60 NSAG 63
>gnl|CDD|143225 cd05748, Ig_Titin_like, Immunoglobulin (Ig)-like domain of titin
and similar proteins. Ig_Titin_like: immunoglobulin
(Ig)-like domain found in titin-like proteins. Titin
(also called connectin) is a fibrous sarcomeric protein
specifically found in vertebrate striated muscle. Titin
is gigantic, depending on isoform composition it ranges
from 2970 to 3700 kDa, and is of a length that spans
half a sarcomere. Titin largely consists of multiple
repeats of Ig-like and fibronectin type 3 (FN-III)-like
domains. Titin connects the ends of myosin thick
filaments to Z disks and extends along the thick
filament to the H zone. It appears to function
similarly to an elastic band, keeping the myosin
filaments centered in the sarcomere during muscle
contraction or stretching. Within the sarcomere, titin
is also attached to or is associated with myosin binding
protein C (MyBP-C). MyBP-C appears to contribute to the
generation of passive tension by titin, and similar to
titin has repeated Ig-like and FN-III domains. Also
included in this group are worm twitchin and insect
projectin, thick filament proteins of invertebrate
muscle, which also have repeated Ig-like and FN-III
domains.
Length = 74
Score = 55.7 bits (135), Expect = 3e-11
Identities = 19/67 (28%), Positives = 28/67 (41%), Gaps = 1/67 (1%)
Query: 81 LSGKPPPTVKWYKGNRELSKRD-YSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTDE 139
+SG+P PTV W K + L + + S+ I + + DSG+Y N G
Sbjct: 8 ISGRPTPTVTWSKDGKPLKLSGRVQIETTASSTSLVIKNAERSDSGKYTLTLKNPAGEKS 67
Query: 140 TNCVVIV 146
V V
Sbjct: 68 ATINVKV 74
>gnl|CDD|143206 cd05729, Ig2_FGFR_like, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor and similar
proteins. Ig2_FGFR_like: domain similar to the second
immunoglobulin (Ig)-like domain of fibroblast growth
factor (FGF) receptor. FGF receptors bind FGF signaling
polypeptides. FGFs participate in multiple processes
such as morphogenesis, development, and angiogenesis.
FGFs bind to four FGF receptor tyrosine kinases (FGFR1,
-2, -3, -4). Receptor diversity is controlled by
alternative splicing producing splice variants with
different ligand binding characteristics and different
expression patterns. FGFRs have an extracellular region
comprised of three Ig-like domains, a single
transmembrane helix, and an intracellular tyrosine
kinase domain. Ligand binding and specificity reside in
the Ig-like domains 2 and 3, and the linker region that
connects these two. FGFR activation and signaling depend
on FGF-induced dimerization, a process involving cell
surface heparin or heparin sulfate proteoglycans. This
group also contains fibroblast growth factor (FGF)
receptor_like-1(FGFRL1). FGFRL1 does not have a protein
tyrosine kinase domain at its C terminus; neither does
its cytoplasmic domain appear to interact with a
signaling partner. It has been suggested that FGFRL1 may
not have any direct signaling function, but instead acts
as a decoy receptor trapping FGFs and preventing them
from binding other receptors.
Length = 85
Score = 50.8 bits (122), Expect = 3e-09
Identities = 22/68 (32%), Positives = 32/68 (47%), Gaps = 6/68 (8%)
Query: 74 TCKLLCCLSGKPPPTVKWYKGNRELSKRD----YSMSYSDGVVSMEIIDCKPEDSGEYKC 129
T +L C SG P PT+ W K + K Y + + +E P DSG+Y C
Sbjct: 11 TVRLKCPASGNPRPTITWLKDGKPFKKEHRIGGYKVRKKKWTLILE--SVVPSDSGKYTC 68
Query: 130 VATNKHGT 137
+ NK+G+
Sbjct: 69 IVENKYGS 76
>gnl|CDD|143265 cd05857, Ig2_FGFR, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor. Ig2_FGFR:
second immunoglobulin (Ig)-like domain of fibroblast
growth factor (FGF) receptor. FGF receptors bind FGF
signaling polypeptides. FGFs participate in multiple
processes such as morphogenesis, development, and
angiogenesis. FGFs bind to four FGF receptor tyrosine
kinases (FGFR1, -2, -3, -4). Receptor diversity is
controlled by alternative splicing producing splice
variants with different ligand binding characteristics
and different expression patterns. FGFRs have an
extracellular region comprised of three IG-like domains,
a single transmembrane helix, and an intracellular
tyrosine kinase domain. Ligand binding and specificity
reside in the Ig-like domains 2 and 3, and the linker
region that connects these two. FGFR activation and
signaling depend on FGF-induced dimerization, a process
involving cell surface heparin or heparin sulfate
proteoglycans.
Length = 85
Score = 50.2 bits (120), Expect = 5e-09
Identities = 21/68 (30%), Positives = 32/68 (47%), Gaps = 6/68 (8%)
Query: 74 TCKLLCCLSGKPPPTVKWYKGNRELSKRD----YSMSYSDGVVSMEIIDCKPEDSGEYKC 129
T K C +G P PT++W K +E + Y + + ME + P D G Y C
Sbjct: 11 TVKFRCPAAGNPTPTMRWLKNGKEFKQEHRIGGYKVRNQHWSLIMESV--VPSDKGNYTC 68
Query: 130 VATNKHGT 137
V N++G+
Sbjct: 69 VVENEYGS 76
>gnl|CDD|143214 cd05737, Ig_Myomesin_like_C, C-temrinal immunoglobulin (Ig)-like
domain of myomesin and M-protein. Ig_Myomesin_like_C:
domain similar to the C-temrinal immunoglobulin
(Ig)-like domain of myomesin and M-protein. Myomesin and
M-protein are both structural proteins localized to the
M-band, a transverse structure in the center of the
sarcomere, and are candidates for M-band bridges. Both
proteins are modular, consisting mainly of repetitive
Ig-like and fibronectin type III (FnIII) domains.
Myomesin is expressed in all types of vertebrate
striated muscle; M-protein has a muscle-type specific
expression pattern. Myomesin is present in both slow and
fast fibers; M-protein is present only in fast fibers.
It has been suggested that myomesin acts as a molecular
spring with alternative splicing as a means of modifying
its elasticity.
Length = 92
Score = 50.6 bits (121), Expect = 6e-09
Identities = 26/76 (34%), Positives = 38/76 (50%), Gaps = 2/76 (2%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRD-YSMSYSDG-VVSMEIIDCKPEDSGEYKCV 130
+T L C + G P P V W K ++ L+ D Y++ G S+ I EDSG+Y V
Sbjct: 17 KTLNLTCTVFGDPDPEVSWLKNDQALALSDHYNVKVEQGKYASLTIKGVSSEDSGKYGIV 76
Query: 131 ATNKHGTDETNCVVIV 146
NK+G + + V V
Sbjct: 77 VKNKYGGETVDVTVSV 92
>gnl|CDD|143205 cd05728, Ig4_Contactin-2-like, Fourth Ig domain of the neural cell
adhesion molecule contactin-2 and similar proteins.
Ig4_Contactin-2-like: fourth Ig domain of the neural
cell adhesion molecule contactin-2. Contactins are
comprised of six Ig domains followed by four fibronectin
type III (FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-2 (aliases
TAG-1, axonin-1) facilitates cell adhesion by homophilic
binding between molecules in apposed membranes. The
first four Ig domains form the intermolecular binding
fragment which arranges as a compact U-shaped module by
contacts between Ig domains 1 and 4, and domains 2 and
3. It has been proposed that a linear zipper-like array
forms, from contactin-2 molecules alternatively provided
by the two apposed membranes.
Length = 85
Score = 47.6 bits (113), Expect = 5e-08
Identities = 21/59 (35%), Positives = 30/59 (50%), Gaps = 3/59 (5%)
Query: 79 CCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGT 137
C SG P P +W K + L+ + + G + + + DSG Y+CVA NKHGT
Sbjct: 21 CKASGNPRPAYRWLKNGQPLASEN-RIEVEAGDLRITKLSL--SDSGMYQCVAENKHGT 76
>gnl|CDD|143208 cd05731, Ig3_L1-CAM_like, Third immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig3_L1-CAM_like:
domain similar to the third immunoglobulin (Ig)-like
domain of the L1 cell adhesion molecule (CAM). L1
belongs to the L1 subfamily of cell adhesion molecules
(CAMs) and is comprised of an extracellular region
having six Ig-like domains and five fibronectin type III
domains, a transmembrane region and an intracellular
domain. L1 is primarily expressed in the nervous system
and is involved in its development and function. L1 is
associated with an X-linked recessive disorder, X-linked
hydrocephalus, MASA syndrome, or spastic paraplegia type
1, that involves abnormalities of axonal growth. This
group also contains the chicken neuron-glia cell
adhesion molecule, Ng-CAM and human neurofascin.
Length = 71
Score = 46.2 bits (110), Expect = 1e-07
Identities = 22/71 (30%), Positives = 30/71 (42%), Gaps = 2/71 (2%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
L C G P P + W K EL + ++I + ED GEY+C A+N G
Sbjct: 3 LECIAEGLPTPEISWIKIGGELPADRTKFENFNKT--LKIDNVSEEDDGEYRCTASNSLG 60
Query: 137 TDETNCVVIVE 147
+ V VE
Sbjct: 61 SARHTISVTVE 71
>gnl|CDD|143299 cd05891, Ig_M-protein_C, C-terminal immunoglobulin (Ig)-like domain
of M-protein (also known as myomesin-2).
Ig_M-protein_C: the C-terminal immunoglobulin (Ig)-like
domain of M-protein (also known as myomesin-2).
M-protein is a structural protein localized to the
M-band, a transverse structure in the center of the
sarcomere, and is a candidate for M-band bridges.
M-protein is modular consisting mainly of repetitive
IG-like and fibronectin type III (FnIII) domains, and
has a muscle-type specific expression pattern. M-protein
is present in fast fibers.
Length = 92
Score = 46.8 bits (111), Expect = 1e-07
Identities = 24/76 (31%), Positives = 38/76 (50%), Gaps = 2/76 (2%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRD-YSMSYSDG-VVSMEIIDCKPEDSGEYKCV 130
+T L C + G P P V W+K ++++ + YS+ G S+ I EDSG+Y
Sbjct: 17 KTLNLTCTVFGNPDPEVIWFKNDQDIELSEHYSVKLEQGKYASLTIKGVTSEDSGKYSIN 76
Query: 131 ATNKHGTDETNCVVIV 146
NK+G + + V V
Sbjct: 77 VKNKYGGETVDVTVSV 92
>gnl|CDD|143207 cd05730, Ig3_NCAM-1_like, Third immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig3_NCAM-1_like: domain similar to the third
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-1 (NCAM). NCAM plays important roles in
the development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-non-NCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves Ig1, Ig2, and Ig3. By
this model, Ig1,and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain.
Length = 95
Score = 46.5 bits (110), Expect = 2e-07
Identities = 22/67 (32%), Positives = 31/67 (46%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVAT 132
Q+ L C G P PT+ W K + + S+++ M I+D D EY C+A
Sbjct: 19 QSVTLACDADGFPEPTMTWTKDGEPIESGEEKYSFNEDGSEMTILDVDKLDEAEYTCIAE 78
Query: 133 NKHGTDE 139
NK G E
Sbjct: 79 NKAGEQE 85
>gnl|CDD|143227 cd05750, Ig_Pro_neuregulin, Immunoglobulin (Ig)-like domain in
neuregulins (NRGs). Ig_Pro_neuregulin: immunoglobulin
(Ig)-like domain in neuregulins (NRGs). NRGs are
signaling molecules, which participate in cell-cell
interactions in the nervous system, breast, heart, and
other organ systems, and are implicated in the pathology
of diseases including schizophrenia, multiple sclerosis,
and breast cancer. There are four members of the
neuregulin gene family (NRG1, -2, -3, and -4). The NRG-1
protein, binds to and activates the tyrosine kinases
receptors ErbB3 and ErbB4, initiating signaling
cascades. The other NRGs proteins bind one or the other
or both of these ErbBs. NRG-1 has multiple functions;
for example, in the brain it regulates various processes
such as radial glia formation and neuronal migration,
dendritic development, and expression of
neurotransmitters receptors; in the peripheral nervous
system NRG-1 regulates processes such as target cell
differentiation, and Schwann cell survival. There are
many NRG-1 isoforms, which arise from the alternative
splicing of mRNA. Less is known of the functions of the
other NRGs. NRG-2 and -3 are expressed predominantly in
the nervous system. NRG-2 is expressed by motor neurons
and terminal Schwann cells, and is concentrated near
synaptic sites and may be a signal that regulates
synaptic differentiation. NRG-4 has been shown to direct
pancreatic islet cell development towards the delta-cell
lineage.
Length = 75
Score = 43.7 bits (103), Expect = 1e-06
Identities = 20/63 (31%), Positives = 28/63 (44%), Gaps = 4/63 (6%)
Query: 82 SGKPPPTVKWYKGNRELSK----RDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGT 137
S P KW+K +EL++ R+ + ++I K DSGEY CV N G
Sbjct: 9 SEYPSLRFKWFKDGKELNRKNKPRNIKIRNKKKNSELQINKAKLADSGEYTCVVENILGN 68
Query: 138 DET 140
D
Sbjct: 69 DTV 71
>gnl|CDD|143222 cd05745, Ig3_Peroxidasin, Third immunoglobulin (Ig)-like domain of
peroxidasin. Ig3_Peroxidasin: the third immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 74
Score = 43.4 bits (102), Expect = 2e-06
Identities = 24/74 (32%), Positives = 33/74 (44%), Gaps = 2/74 (2%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVAT 132
QT LC G P P + W KG +LS + S G ++ I D G+Y+C A
Sbjct: 3 QTVDFLCEAQGYPQPVIAWTKGGSQLSVDRRHLVLSSG--TLRISRVALHDQGQYECQAV 60
Query: 133 NKHGTDETNCVVIV 146
N G+ T + V
Sbjct: 61 NIVGSQRTVAQLTV 74
>gnl|CDD|143202 cd05725, Ig3_Robo, Third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig3_Robo: domain similar to the
third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 69
Score = 42.4 bits (100), Expect = 4e-06
Identities = 22/68 (32%), Positives = 30/68 (44%), Gaps = 3/68 (4%)
Query: 79 CCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTD 138
C + G P PTV W K + EL K + S++I + D G Y C A N G
Sbjct: 5 CEVGGDPVPTVLWRKEDGELPKGRAEILDDK---SLKIRNVTAGDEGSYTCEAENMVGKI 61
Query: 139 ETNCVVIV 146
E + + V
Sbjct: 62 EASASLTV 69
>gnl|CDD|143240 cd05763, Ig_1, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_1: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 75
Score = 41.8 bits (98), Expect = 6e-06
Identities = 23/73 (31%), Positives = 32/73 (43%), Gaps = 2/73 (2%)
Query: 76 KLLCCLSGKPPPTVKWYK--GNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
+L C +G P P + W K G + R+ M I+D K ED+G Y C A N
Sbjct: 2 RLECAATGHPTPQIAWQKDGGTDFPAARERRMHVMPEDDVFFIVDVKIEDTGVYSCTAQN 61
Query: 134 KHGTDETNCVVIV 146
G+ N + V
Sbjct: 62 TAGSISANATLTV 74
>gnl|CDD|143169 cd04968, Ig3_Contactin_like, Third Ig domain of contactin.
Ig3_Contactin_like: Third Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four fibronectin
type III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of
neuronal act ivity in the rat auditory system.
Contactin-5 is highly expressed in the adult human brain
in the occipital lobe and in the amygdala. Contactin-1
is differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 88
Score = 42.5 bits (100), Expect = 6e-06
Identities = 23/75 (30%), Positives = 34/75 (45%), Gaps = 3/75 (4%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVAT 132
Q L C G P P +KW K + + +S S V ++I + + ED G Y+C A
Sbjct: 17 QNVTLECFALGNPVPQIKWRKVDGSMPSS-AEISMSGAV--LKIPNIQFEDEGTYECEAE 73
Query: 133 NKHGTDETNCVVIVE 147
N G D + V+
Sbjct: 74 NIKGKDTHQGRIYVQ 88
>gnl|CDD|143277 cd05869, Ig5_NCAM-1, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig5_NCAM-1: The fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM). NCAM plays
important roles in the development and regeneration of
the central nervous system, in synaptogenesis and neural
migration. NCAM mediates cell-cell and cell-substratum
recognition and adhesion via homophilic (NCAM-NCAM) and
heterophilic (NCAM-non-NCAM) interactions. NCAM is
expressed as three major isoforms having different
intracellular extensions. The extracellular portion of
NCAM has five N-terminal Ig-like domains and two
fibronectin type III domains. The double zipper adhesion
complex model for NCAM homophilic binding involves Ig1,
Ig2, and Ig3. By this model, Ig1 and Ig2 mediate
dimerization of NCAM molecules situated on the same cell
surface (cis interactions), and Ig3 domains mediate
interactions between NCAM molecules expressed on the
surface of opposing cells (trans interactions), through
binding to the Ig1 and Ig2 domains. The adhesive ability
of NCAM is modulated by the addition of polysialic acid
chains to the fifth Ig-like domain.
Length = 97
Score = 42.3 bits (99), Expect = 7e-06
Identities = 25/90 (27%), Positives = 41/90 (45%), Gaps = 12/90 (13%)
Query: 58 PNFTFLLRPRVMQVRQTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDG------- 110
P T++ M++ + L C SG P P++ W R +S + ++ DG
Sbjct: 3 PKITYVENQTAMELEEQITLTCEASGDPIPSITWRTSTRNISSEEKTL---DGHIVVRSH 59
Query: 111 --VVSMEIIDCKPEDSGEYKCVATNKHGTD 138
V S+ + + D+GEY C A+N G D
Sbjct: 60 ARVSSLTLKYIQYTDAGEYLCTASNTIGQD 89
>gnl|CDD|143177 cd04976, Ig2_VEGFR, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR).
Ig2_VEGFR: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR). The
VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of three
members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGFRs bind VEGFs with high affinity at
the Ig-like domains. VEGF-A is important to the growth
and maintenance of vascular endothelial cells and to the
development of new blood- and lymphatic-vessels in
physiological and pathological states. VEGFR-2 is a
major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A.
VEGFR-1 may play an inhibitory part in these processes
by binding VEGF and interfering with its interaction
with VEGFR-2. VEGFR-1 has a signaling role in mediating
monocyte chemotaxis. VEGFR-2 and -1 may mediate a
chemotactic and a survival signal in hematopoietic stem
cells or leukemia cells. VEGFR-3 has been shown to be
involved in tumor angiogenesis and growth.
Length = 71
Score = 41.2 bits (97), Expect = 9e-06
Identities = 20/59 (33%), Positives = 32/59 (54%), Gaps = 3/59 (5%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNK 134
+L + PPP ++WYK + +S++ + + G S+ I D ED+G Y V TNK
Sbjct: 2 RLPVKVKAYPPPEIQWYKNGKLISEK--NRTKKSG-HSLTIKDVTEEDAGNYTVVLTNK 57
>gnl|CDD|143216 cd05739, Ig3_RPTP_IIa_LAR_like, Third immunoglobulin (Ig)-like
domain of the receptor protein tyrosine phosphatase
(RPTP)-F, also known as LAR. Ig3_RPTP_IIa_LAR_like:
domain similar to the third immunoglobulin (Ig)-like
domain found in the receptor protein tyrosine
phosphatase (RPTP)-F, also known as LAR. LAR belongs to
the RPTP type IIa subfamily. Members of this subfamily
are cell adhesion molecule-like proteins involved in
central nervous system (CNS) development. They have
large extracellular portions, comprised of multiple
IG-like domains and two to nine fibronectin type III
(FNIII) domains, and a cytoplasmic portion having two
tandem phosphatase domains. Included in this group is
Drosophila LAR (DLAR).
Length = 69
Score = 41.0 bits (96), Expect = 1e-05
Identities = 25/68 (36%), Positives = 31/68 (45%), Gaps = 5/68 (7%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
L C G P P VKW KG EL+K D M V +E+ + +S Y CVA + G
Sbjct: 6 LTCVAVGAPMPYVKWMKGGEELTKED-EMPVGRNV--LELTNIY--ESANYTCVAISSLG 60
Query: 137 TDETNCVV 144
E V
Sbjct: 61 MIEATAQV 68
>gnl|CDD|143172 cd04971, Ig_TrKABC_d5, Fifth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d5: the fifth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrkB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 81
Score = 40.8 bits (96), Expect = 2e-05
Identities = 19/71 (26%), Positives = 31/71 (43%), Gaps = 8/71 (11%)
Query: 83 GKPPPTVKWYKGNRELSKRDY--SMSYSDGVVSMEIIDC----KPE--DSGEYKCVATNK 134
G P PT+ WY L++ DY + + + E C P ++G Y VA+N+
Sbjct: 9 GNPKPTLTWYHNGAVLNESDYIRTEIHYEVTTPTEYHGCLQFDNPTHVNNGNYTLVASNE 68
Query: 135 HGTDETNCVVI 145
+G D +
Sbjct: 69 YGQDSKSISAH 79
>gnl|CDD|143264 cd05856, Ig2_FGFRL1-like, Second immunoglobulin (Ig)-like domain of
fibroblast growth factor (FGF) receptor_like-1(FGFRL1).
Ig2_FGFRL1-like: second immunoglobulin (Ig)-like domain
of fibroblast growth factor (FGF)
receptor_like-1(FGFRL1). FGFRL1 is comprised of a signal
peptide, three extracellular Ig-like modules, a
transmembrane segment, and a short intracellular domain.
FGFRL1 is expressed preferentially in skeletal tissues.
Similar to FGF receptors, the expressed protein
interacts specifically with heparin and with FGF2.
FGFRL1 does not have a protein tyrosine kinase domain at
its C terminus; neither does its cytoplasmic domain
appear to interact with a signaling partner. It has been
suggested that FGFRL1 may not have any direct signaling
function, but instead acts as a decoy receptor trapping
FGFs and preventing them from binding other receptors.
Length = 82
Score = 40.6 bits (95), Expect = 2e-05
Identities = 22/66 (33%), Positives = 35/66 (53%), Gaps = 1/66 (1%)
Query: 71 VRQTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCV 130
V + +L C SG P P + W K N+ L+ + S ++ + + KPEDSG+Y C
Sbjct: 8 VGSSVRLKCVASGNPRPDITWLKDNKPLTPTEIGESRKKKW-TLSLKNLKPEDSGKYTCH 66
Query: 131 ATNKHG 136
+N+ G
Sbjct: 67 VSNRAG 72
>gnl|CDD|143178 cd04977, Ig1_NCAM-1_like, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1 and similar
proteins. Ig1_NCAM-1 like: first immunoglobulin
(Ig)-like domain of neural cell adhesion molecule
NCAM-1. NCAM-1 plays important roles in the development
and regeneration of the central nervous system, in
synaptogenesis and neural migration. NCAM mediates
cell-cell and cell-substratum recognition and adhesion
via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as three
major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate dimerization
of NCAM molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain. Also included in this group is
NCAM-2 (also known as OCAM/mamFas II and RNCAM). NCAM-2
is differentially expressed in the developing and mature
olfactory epithelium (OE).
Length = 92
Score = 41.0 bits (96), Expect = 2e-05
Identities = 24/80 (30%), Positives = 44/80 (55%), Gaps = 4/80 (5%)
Query: 69 MQVRQTCKLLCCLSGKPPPTVKWY--KGNRELSKRDYSMSYSDGVVS-MEIIDCKPEDSG 125
+ V ++ LC + G+P + W+ G + ++++ S+ +D V S + I + ED+G
Sbjct: 12 ISVGESKFFLCQVIGEPK-DISWFSPNGEKLVTQQQISVVQNDDVRSTLTIYNANIEDAG 70
Query: 126 EYKCVATNKHGTDETNCVVI 145
YKCVAT+ GT+ V +
Sbjct: 71 IYKCVATDAKGTESEATVNL 90
>gnl|CDD|212460 cd05723, Ig4_Neogenin, Fourth immunoglobulin (Ig)-like domain in
neogenin and similar proteins. Ig4_Neogenin: fourth
immunoglobulin (Ig)-like domain in neogenin and related
proteins. Neogenin is a cell surface protein which is
expressed in the developing nervous system of vertebrate
embryos in the growing nerve cells. It is also expressed
in other embryonic tissues, and may play a general role
in developmental processes such as cell migration,
cell-cell recognition, and tissue growth regulation.
Included in this group is the tumor suppressor protein
DCC, which is deleted in colorectal carcinoma . DCC and
neogenin each have four Ig-like domains followed by six
fibronectin type III domains, a transmembrane domain,
and an intracellular domain.
Length = 71
Score = 39.9 bits (93), Expect = 3e-05
Identities = 20/68 (29%), Positives = 34/68 (50%), Gaps = 2/68 (2%)
Query: 79 CCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTD 138
C ++GKP PTVKW K + DY + +++++ D G Y+C+A N G
Sbjct: 6 CEVTGKPTPTVKWVKNGDMVIPSDYFKIVKEH--NLQVLGLVKSDEGFYQCIAENDVGNV 63
Query: 139 ETNCVVIV 146
+ +I+
Sbjct: 64 QAGAQLII 71
>gnl|CDD|143209 cd05732, Ig5_NCAM-1_like, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM) and similar
proteins. Ig5_NCAM-1 like: domain similar to the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-1 (NCAM). NCAM plays important roles in
the development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-non-NCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves Ig1, Ig2, and Ig3. By
this model, Ig1 and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain. Also included in this group is
NCAM-2 (also known as OCAM/mamFas II and RNCAM) NCAM-2
is differentially expressed in the developing and mature
olfactory epithelium (OE).
Length = 96
Score = 40.2 bits (94), Expect = 4e-05
Identities = 27/90 (30%), Positives = 41/90 (45%), Gaps = 13/90 (14%)
Query: 58 PNFTFLLRPRVMQVRQTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDG------- 110
P T+L +++ Q L C G P P + W + R S+ D S+ DG
Sbjct: 3 PKITYLENQTAVELEQI-TLTCEAEGDPIPEITWRRATRNFSEGDKSL---DGRIVVRGH 58
Query: 111 --VVSMEIIDCKPEDSGEYKCVATNKHGTD 138
V S+ + D + D+G Y C A+N+ G D
Sbjct: 59 ARVSSLTLKDVQLTDAGRYDCEASNRIGGD 88
>gnl|CDD|143259 cd05851, Ig3_Contactin-1, Third Ig domain of contactin-1.
Ig3_Contactin-1: Third Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 88
Score = 40.0 bits (93), Expect = 4e-05
Identities = 26/76 (34%), Positives = 38/76 (50%), Gaps = 5/76 (6%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNREL-SKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVA 131
Q L C G P P ++W K + + + SMS G V ++I + +PED G Y+C A
Sbjct: 17 QNVTLECFALGNPVPVIRWRKILEPMPATAEISMS---GAV-LKIFNIQPEDEGTYECEA 72
Query: 132 TNKHGTDETNCVVIVE 147
N G D+ V V+
Sbjct: 73 ENIKGKDKHQARVYVQ 88
>gnl|CDD|143179 cd04978, Ig4_L1-NrCAM_like, Fourth immunoglobulin (Ig)-like domain
of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule),
and NrCAM (Ng-CAM-related). Ig4_L1-NrCAM_like: fourth
immunoglobulin (Ig)-like domain of L1, Ng-CAM
(Neuron-glia CAM cell adhesion molecule), and NrCAM
(Ng-CAM-related). These proteins belong to the L1
subfamily of cell adhesion molecules (CAMs) and are
comprised of an extracellular region having six Ig-like
domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. These
molecules are primarily expressed in the nervous system.
L1 is associated with an X-linked recessive disorder,
X-linked hydrocephalus, MASA syndrome, or spastic
paraplegia type 1, that involves abnormalities of axonal
growth.
Length = 76
Score = 39.3 bits (92), Expect = 5e-05
Identities = 16/64 (25%), Positives = 28/64 (43%)
Query: 74 TCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
T +L C G P PT+ W + + ++ + + +P D+ Y+C A+N
Sbjct: 3 TGRLDCEAEGIPQPTITWRLNGVPIEELPPDPRRRVDGGTLILSNVQPNDTAVYQCNASN 62
Query: 134 KHGT 137
HG
Sbjct: 63 VHGY 66
>gnl|CDD|143242 cd05765, Ig_3, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_3: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 81
Score = 39.4 bits (92), Expect = 6e-05
Identities = 23/76 (30%), Positives = 36/76 (47%), Gaps = 8/76 (10%)
Query: 73 QTCKLLCCLSGKPPPTVKWYK---GNRELSKRDYSMSYSDGVVS----MEIIDCKPEDSG 125
+T C ++G+PPP + W K G L R + + VV+ + I + +P+D+G
Sbjct: 2 ETASFHCDVTGRPPPEITWEKQVHGKENLIMRPNHV-RGNVVVTNIGQLVIYNAQPQDAG 60
Query: 126 EYKCVATNKHGTDETN 141
Y C A N G N
Sbjct: 61 LYTCTARNSGGLLRAN 76
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 39.0 bits (91), Expect = 9e-05
Identities = 24/75 (32%), Positives = 30/75 (40%), Gaps = 11/75 (14%)
Query: 64 LRPRVMQVRQTCKLL--CCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKP 121
L P V + + C G PPP WYK LS + ++ V
Sbjct: 4 LTPSPTVVFEGEDVTLTCSAPGNPPPNYTWYKDGVPLSSS-QNGFFTPNVS--------A 54
Query: 122 EDSGEYKCVATNKHG 136
EDSG Y CVA+N G
Sbjct: 55 EDSGTYTCVASNGGG 69
>gnl|CDD|143170 cd04969, Ig5_Contactin_like, Fifth Ig domain of contactin.
Ig5_Contactin_like: Fifth Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four fibronectin
type III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of
neuronal act ivity in the rat auditory system.
Contactin-5 is highly expressed in the adult human brain
in the occipital lobe and in the amygdala. Contactin-1
is differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 73
Score = 38.6 bits (90), Expect = 1e-04
Identities = 23/70 (32%), Positives = 30/70 (42%), Gaps = 6/70 (8%)
Query: 79 CCLSGKPPPTVKWYKGNREL--SKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
C P PT+ W KG L S R DG S+EI++ D G+Y C A N G
Sbjct: 8 CKPKAAPKPTISWSKGTELLTNSSRICIWP--DG--SLEILNVTKSDEGKYTCFAENFFG 63
Query: 137 TDETNCVVIV 146
+ + V
Sbjct: 64 KANSTGSLSV 73
>gnl|CDD|143210 cd05733, Ig6_L1-CAM_like, Sixth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM) and similar
proteins. Ig6_L1-CAM_like: domain similar to the sixth
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
NrCAM [Ng(neuronglia)CAM-related cell adhesion
molecule], which is primarily expressed in the nervous
system, and human neurofascin.
Length = 77
Score = 38.5 bits (90), Expect = 1e-04
Identities = 20/73 (27%), Positives = 34/73 (46%), Gaps = 5/73 (6%)
Query: 79 CCLSGKPPPTVKWYKGNRE---LSKRDYSMSYSDGVVSMEIID-CKPED-SGEYKCVATN 133
C G PPPT W + +M G + ++ ++ + ED GEY+C A+N
Sbjct: 5 CEAKGNPPPTFSWTRNGTHFDPEKDPRVTMKPDSGTLVIDNMNGGRAEDYEGEYQCYASN 64
Query: 134 KHGTDETNCVVIV 146
+ GT +N + +
Sbjct: 65 ELGTAISNEIHLR 77
>gnl|CDD|143257 cd05849, Ig1_Contactin-1, First Ig domain of contactin-1.
Ig1_Contactin-1: First Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 93
Score = 38.8 bits (90), Expect = 1e-04
Identities = 19/61 (31%), Positives = 29/61 (47%), Gaps = 5/61 (8%)
Query: 79 CCLSGKPPPTVKWYKGNRE--LSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
C P P KW K N + L+ YSM + V++ K +D+G Y C+ +N +G
Sbjct: 26 CRARANPFPIYKWRKNNLDIDLTNDRYSMVGGNLVINNPD---KYKDAGRYVCIVSNIYG 82
Query: 137 T 137
Sbjct: 83 K 83
>gnl|CDD|143237 cd05760, Ig2_PTK7, Second immunoglobulin (Ig)-like domain of
protein tyrosine kinase (PTK) 7, also known as CCK4.
Ig2_PTK7: domain similar to the second immunoglobulin
(Ig)-like domain in protein tyrosine kinase (PTK) 7,
also known as CCK4. PTK7 is a subfamily of the receptor
protein tyrosine kinase family, and is referred to as an
RPTK-like molecule. RPTKs transduce extracellular
signals across the cell membrane, and play important
roles in regulating cell proliferation, migration, and
differentiation. PTK7 is organized as an extracellular
portion having seven Ig-like domains, a single
transmembrane region, and a cytoplasmic tyrosine
kinase-like domain. PTK7 is considered a pseudokinase as
it has several unusual residues in some of the highly
conserved tyrosine kinase (TK) motifs; it is predicted
to lack TK activity. PTK7 may function as a
cell-adhesion molecule. PTK7 mRNA is expressed at high
levels in placenta, melanocytes, liver, lung, pancreas,
and kidney. PTK7 is overexpressed in several cancers,
including melanoma and colon cancer lines.
Length = 77
Score = 38.4 bits (89), Expect = 1e-04
Identities = 20/61 (32%), Positives = 30/61 (49%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
L C + G P PT +W++ LS + S S ++ + P+DSG Y C A N G
Sbjct: 3 LRCHIDGHPRPTYQWFRDGTPLSDGQGNYSVSSKERTLTLRSAGPDDSGLYYCCAHNAFG 62
Query: 137 T 137
+
Sbjct: 63 S 63
>gnl|CDD|143284 cd05876, Ig3_L1-CAM, Third immunoglobulin (Ig)-like domain of the
L1 cell adhesion molecule (CAM). Ig3_L1-CAM: third
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains, five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
the chicken neuron-glia cell adhesion molecule, Ng-CAM.
Length = 71
Score = 38.0 bits (88), Expect = 2e-04
Identities = 20/71 (28%), Positives = 31/71 (43%), Gaps = 2/71 (2%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
L C G P P V W + + LS ++ ++++ + D GEY C A N G
Sbjct: 3 LECIAEGLPTPEVHWDRIDGPLSPNRTKKLNNNK--TLQLDNVLESDDGEYVCTAENSEG 60
Query: 137 TDETNCVVIVE 147
+ + V VE
Sbjct: 61 SARHHYTVTVE 71
>gnl|CDD|143168 cd04967, Ig1_Contactin, First Ig domain of contactin.
Ig1_Contactin: First Ig domain of contactins. Contactins
are neural cell adhesion molecules and are comprised of
six Ig domains followed by four fibronectin type
III(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. The first four Ig domains
form the intermolecular binding fragment, which arranges
as a compact U-shaped module via contacts between Ig
domains 1 and 4, and between Ig domains 2 and 3.
Contactin-2 (TAG-1, axonin-1) may play a part in the
neuronal processes of neurite outgrowth, axon guidance
and fasciculation, and neuronal migration. This group
also includes contactin-1 and contactin-5. The different
contactins show different expression patterns in the
central nervous system. During development and in
adulthood, contactin-2 is transiently expressed in
subsets of central and peripheral neurons. Contactin-5
is expressed specifically in the rat postnatal nervous
system, peaking at about 3 weeks postnatal, and a lack
of contactin-5 (NB-2) results in an impairment of
neuronal activity in the rat auditory system.
Contactin-5 is highly expressed in the adult human brain
in the occipital lobe and in the amygdala. Contactin-1
is differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 91
Score = 37.8 bits (88), Expect = 3e-04
Identities = 22/64 (34%), Positives = 31/64 (48%), Gaps = 6/64 (9%)
Query: 77 LLCCLSGKPPPTVKWYKGNRE---LSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
L C G PPPT +W E YS+ + V+S K +D+G Y+C+A+N
Sbjct: 24 LNCRARGSPPPTYRWLMNGTEIDDEPDSRYSLVGGNLVISNPS---KAKDAGRYQCLASN 80
Query: 134 KHGT 137
GT
Sbjct: 81 IVGT 84
>gnl|CDD|143201 cd05724, Ig2_Robo, Second immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig2_Robo: domain similar to the
second immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 86
Score = 37.4 bits (87), Expect = 3e-04
Identities = 22/62 (35%), Positives = 29/62 (46%), Gaps = 7/62 (11%)
Query: 83 GKPPPTVKWYKGNRELSKRDYSMSY---SDGVVSMEIIDCKPEDSGEYKCVATNKHGTDE 139
G P PTV W K + L + DG ++ I + + D G YKCVATN G E
Sbjct: 23 GHPEPTVSWRKDGQPL--NLDNERVRIVDDG--NLLIAEARKSDEGTYKCVATNMVGERE 78
Query: 140 TN 141
+
Sbjct: 79 SA 80
>gnl|CDD|143305 cd05897, Ig2_IL1R2_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor-2 (IL1R2). Ig2_IL1R2_like:
domain similar to the second immunoglobulin (Ig)-like
domain of interleukin-1 receptor-2 (IL1R2). IL-1 alpha
and IL-1 beta are cytokines which participate in the
regulation of inflammation, immune responses, and
hematopoiesis. These cytokines bind to the IL-1 receptor
type 1 (IL1R1), which is activated on additional
association with an accessory protein, IL1RAP. IL-1 also
binds the type II (IL1R2) represented in this group.
Mature IL1R2 consists of three IG-like domains, a
transmembrane domain, and a short cytoplasmic domain. It
lacks the large cytoplasmic domain of Mature IL1R1, and
does not initiate signal transduction. A naturally
occurring cytokine IL-1RA (IL-1 receptor antagonist) is
widely expressed and binds to IL-1 receptors, inhibiting
the binding of IL-1 alpha and IL-1 beta.
Length = 95
Score = 37.4 bits (87), Expect = 4e-04
Identities = 17/59 (28%), Positives = 25/59 (42%)
Query: 89 VKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTDETNCVVIVE 147
++WYK + L K + G + IID DSG Y C H + N I++
Sbjct: 32 LQWYKDSVLLDKDNEKFYSLKGSTYLHIIDVSLNDSGYYTCKLQFTHEGKKYNITRIIK 90
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 37.0 bits (85), Expect = 4e-04
Identities = 18/58 (31%), Positives = 25/58 (43%), Gaps = 5/58 (8%)
Query: 78 LCCLS--GKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
L C + G PPPT+ WY+ ++ + EDSG Y CVA+N
Sbjct: 20 LTCSAEGGPPPPTISWYRNGSISGGSGGL---GSSGSTLTLSSVTSEDSGTYTCVASN 74
>gnl|CDD|143241 cd05764, Ig_2, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_2: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 74
Score = 36.3 bits (84), Expect = 6e-04
Identities = 17/65 (26%), Positives = 32/65 (49%), Gaps = 3/65 (4%)
Query: 73 QTCKLLCCLSGKPPPTVKW-YKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVA 131
Q L C G P P + W + +S ++ Y +G +++I+ +D+G + C+A
Sbjct: 2 QRATLRCKARGDPEPAIHWISPDGKLISNSSRTLVYDNG--TLDILITTVKDTGSFTCIA 59
Query: 132 TNKHG 136
+N G
Sbjct: 60 SNAAG 64
>gnl|CDD|143260 cd05852, Ig5_Contactin-1, Fifth Ig domain of contactin-1.
Ig5_Contactin-1: fifth Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 73
Score = 36.2 bits (83), Expect = 8e-04
Identities = 21/68 (30%), Positives = 27/68 (39%), Gaps = 2/68 (2%)
Query: 79 CCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTD 138
C P P W KG L + DG S+EI++ D G Y C A N G
Sbjct: 8 CKPKAAPKPKFSWSKGTELLVNNSRISIWDDG--SLEILNITKLDEGSYTCFAENNRGKA 65
Query: 139 ETNCVVIV 146
+ V+ V
Sbjct: 66 NSTGVLSV 73
>gnl|CDD|143224 cd05747, Ig5_Titin_like, M5, fifth immunoglobulin (Ig)-like domain
of human titin C terminus and similar proteins.
Ig5_Titin_like: domain similar to the M5, fifth
immunoglobulin (Ig)-like domain from the human titin C
terminus. Titin (also called connectin) is a fibrous
sarcomeric protein specifically found in vertebrate
striated muscle. Titin is gigantic; depending on isoform
composition it ranges from 2970 to 3700 kDa, and is of a
length that spans half a sarcomere. Titin largely
consists of multiple repeats of Ig-like and fibronectin
type 3 (FN-III)-like domains. Titin connects the ends of
myosin thick filaments to Z disks and extends along the
thick filament to the H zone, and appears to function
similar to an elastic band, keeping the myosin filaments
centered in the sarcomere during muscle contraction or
stretching.
Length = 92
Score = 36.6 bits (84), Expect = 8e-04
Identities = 23/82 (28%), Positives = 40/82 (48%), Gaps = 3/82 (3%)
Query: 61 TFLLRPRVMQVRQ--TCKLLCCLSGKPPPTVKWY-KGNRELSKRDYSMSYSDGVVSMEII 117
T L +PR + V + + + C + G+P PTV W +G +S + + ++ ++ + EI
Sbjct: 5 TILTKPRSLTVSEGESARFSCDVDGEPAPTVTWMREGQIIVSSQRHQITSTEYKSTFEIS 64
Query: 118 DCKPEDSGEYKCVATNKHGTDE 139
+ D G Y V N G E
Sbjct: 65 KVQMSDEGNYTVVVENSEGKQE 86
>gnl|CDD|143275 cd05867, Ig4_L1-CAM_like, Fourth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig4_L1-CAM_like:
fourth immunoglobulin (Ig)-like domain of the L1 cell
adhesion molecule (CAM). L1 is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
the chicken neuron-glia cell adhesion molecule, Ng-CAM.
Length = 76
Score = 36.0 bits (83), Expect = 0.001
Identities = 17/64 (26%), Positives = 29/64 (45%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVAT 132
+T +L C + G P P + W + D ++ + D +P D+ Y+C A
Sbjct: 2 ETARLDCQVEGIPTPNITWSINGAPIEGTDPDPRRHVSSGALILTDVQPSDTAVYQCEAR 61
Query: 133 NKHG 136
N+HG
Sbjct: 62 NRHG 65
>gnl|CDD|143215 cd05738, Ig2_RPTP_IIa_LAR_like, Second immunoglobulin (Ig)-like
domain of the receptor protein tyrosine phosphatase
(RPTP)-F, also known as LAR. Ig2_RPTP_IIa_LAR_like:
domain similar to the second immunoglobulin (Ig)-like
domain found in the receptor protein tyrosine
phosphatase (RPTP)-F, also known as LAR. LAR belongs to
the RPTP type IIa subfamily. Members of this subfamily
are cell adhesion molecule-like proteins involved in
central nervous system (CNS) development. They have
large extracellular portions, comprised of multiple
Ig-like domains and two to nine fibronectin type III
(FNIII) domains, and a cytoplasmic portion having two
tandem phosphatase domains.
Length = 74
Score = 35.8 bits (82), Expect = 0.001
Identities = 19/69 (27%), Positives = 29/69 (42%), Gaps = 16/69 (23%)
Query: 77 LLCCLSGKPPPTVKWYK--------GNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYK 128
+LC SG P P + W+K N + + + + + D G+Y+
Sbjct: 3 MLCAASGNPDPEITWFKDFLPVDTTSNGRIKQLRSGALQIE--------NSEESDQGKYE 54
Query: 129 CVATNKHGT 137
CVATN GT
Sbjct: 55 CVATNSAGT 63
>gnl|CDD|143220 cd05743, Ig_Perlecan_D2_like, Immunoglobulin (Ig)-like domain II
(D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2.
Ig_Perlecan_D2_like: the immunoglobulin (Ig)-like domain
II (D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2. Perlecan
consists of five domains. Domain I has three putative
heparan sulfate attachment sites; domain II has four LDL
receptor-like repeats, and one Ig-like repeat; domain
III resembles the short arm of laminin chains; domain IV
has multiple Ig-like repeats (21 repeats in human
perlecan); and domain V resembles the globular G domain
of the laminin A chain and internal repeats of EGF.
Perlecan may participate in a variety of biological
functions including cell binding, LDL-metabolism,
basement membrane assembly and selective permeability,
calcium binding, and growth- and neurite-promoting
activities.
Length = 78
Score = 35.5 bits (82), Expect = 0.001
Identities = 21/67 (31%), Positives = 28/67 (41%), Gaps = 3/67 (4%)
Query: 73 QTCKLLCCLSGKPPPTVKWYK--GNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCV 130
+T + C +G P P + W G+ S R S G ++ I D K D G Y C
Sbjct: 2 ETVEFTCVATGVPTPIINWRLNWGHVPDSARVSITSEG-GYGTLTIRDVKESDQGAYTCE 60
Query: 131 ATNKHGT 137
A N G
Sbjct: 61 AINTRGM 67
>gnl|CDD|143302 cd05894, Ig_C5_MyBP-C, C5 immunoglobulin (Ig) domain of cardiac
myosin binding protein C (MyBP-C). Ig_C5_MyBP_C : the
C5 immunoglobulin (Ig) domain of cardiac myosin binding
protein C (MyBP-C). MyBP_C consists of repeated domains,
Ig and fibronectin type 3, and various linkers. Three
isoforms of MYBP_C exist and are included in this group:
cardiac(c), and fast and slow skeletal muscle (s)
MyBP_C. cMYBP_C has insertions between and inside
domains and an additional cardiac-specific Ig domain at
the N-terminus. For cMYBP_C an interaction has been
demonstrated between this C5 domain and the Ig C8
domain.
Length = 86
Score = 35.6 bits (82), Expect = 0.001
Identities = 25/70 (35%), Positives = 35/70 (50%), Gaps = 6/70 (8%)
Query: 81 LSGKPPPTVKWYKGNR---ELSKRDYSMSYSDGVVSMEIID-CKPEDSGEYKCVATNKHG 136
+SG+P PTV W +G++ E R SY D +S +I+ + ED G Y TN G
Sbjct: 19 ISGEPAPTVTWSRGDKAFTETEGRVRVESYKD--LSSFVIEGAEREDEGVYTITVTNPVG 76
Query: 137 TDETNCVVIV 146
D + V V
Sbjct: 77 EDHASLFVKV 86
>gnl|CDD|143272 cd05864, Ig2_VEGFR-2, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
Ig2_VEGF-2: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-2 (KDR/Flk-1) is
a major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A;
VEGF-A is important to the growth and maintenance of
vascular endothelial cells and to the development of new
blood- and lymphatic-vessels in physiological and
pathological states. VEGF-A also interacts with VEGFR-1,
which it binds more strongly than VEGFR-2. VEGFR-2 and
-1 may mediate a chemotactic and a survival signal in
hematopoietic stem cells or leukemia cells.
Length = 70
Score = 35.3 bits (81), Expect = 0.001
Identities = 18/52 (34%), Positives = 26/52 (50%), Gaps = 4/52 (7%)
Query: 83 GKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNK 134
G PPP VKWYK + + ++ GV + I + +D+G Y V TN
Sbjct: 9 GYPPPEVKWYKNGQLIVLN---HTFKRGVH-LTIYEVTEKDAGNYTVVLTNP 56
>gnl|CDD|215677 pfam00047, ig, Immunoglobulin domain. Members of the
immunoglobulin superfamily are found in hundreds of
proteins of different functions. Examples include
antibodies, the giant muscle kinase titin and receptor
tyrosine kinases. Immunoglobulin-like domains may be
involved in protein-protein and protein-ligand
interactions. The Pfam alignments do not include the
first and last strand of the immunoglobulin-like domain.
Length = 62
Score = 35.2 bits (81), Expect = 0.002
Identities = 19/58 (32%), Positives = 28/58 (48%), Gaps = 2/58 (3%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVV--SMEIIDCKPEDSGEYKCVA 131
L C +SG P V W+K + L + + + V ++ I + PEDSG Y CV
Sbjct: 5 TLTCSVSGPPQVDVTWFKEGKGLEESTTVGTDENRVSSITLTISNVTPEDSGTYTCVV 62
>gnl|CDD|143256 cd05848, Ig1_Contactin-5, First Ig domain of contactin-5.
Ig1_Contactin-5: First Ig domain of the neural cell
adhesion molecule contactin-5. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains, anchored to the membrane by
glycosylphosphatidylinositol. The different contactins
show different expression patterns in the central
nervous system. In rats, a lack of contactin-5 (NB-2)
results in an impairment of the neuronal activity in the
auditory system. Contactin-5 is expressed specifically
in the postnatal nervous system, peaking at about 3
weeks postnatal. Contactin-5 is highly expressed in the
adult human brain in the occipital lobe and in the
amygdala; lower levels of expression have been detected
in the corpus callosum, caudate nucleus, and spinal
cord.
Length = 94
Score = 35.7 bits (82), Expect = 0.002
Identities = 24/62 (38%), Positives = 32/62 (51%), Gaps = 6/62 (9%)
Query: 79 CCLSGKPPPTVKWYKGNRELS-KRDYSMSYSDGVVSMEIIDCKPE--DSGEYKCVATNKH 135
C G P PT +W + E+ + DY S DG + II E DSG Y+C+ATN
Sbjct: 26 CEARGNPVPTYRWLRNGTEIDTESDYRYSLIDGNL---IISNPSEVKDSGRYQCLATNSI 82
Query: 136 GT 137
G+
Sbjct: 83 GS 84
>gnl|CDD|143221 cd05744, Ig_Myotilin_C_like, Immunoglobulin (Ig)-like domain of
myotilin, palladin, and myopalladin.
Ig_Myotilin_like_C: immunoglobulin (Ig)-like domain in
myotilin, palladin, and myopalladin. Myotilin,
palladin, and myopalladin function as scaffolds that
regulate actin organization. Myotilin and myopalladin
are most abundant in skeletal and cardiac muscle;
palladin is ubiquitously expressed in the organs of
developing vertebrates and plays a key role in cellular
morphogenesis. The three family members each interact
with specific molecular partners: all three bind to
alpha-actinin; in addition, palladin also binds to
vasodilator-stimulated phosphoprotein (VASP) and ezrin,
myotilin binds to filamin and actin, and myopalladin
also binds to nebulin and cardiac ankyrin repeat protein
(CARP).
Length = 75
Score = 35.2 bits (81), Expect = 0.002
Identities = 22/64 (34%), Positives = 32/64 (50%), Gaps = 3/64 (4%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMS-YSD--GVVSMEIIDCKPEDSGEYKCVAT 132
+L C +S PPP + W K N L+ +S Y D G + + I + ED+G Y A
Sbjct: 2 RLECRVSAIPPPQIFWKKNNEMLTYNTDRISLYQDNCGRICLLIQNANKEDAGWYTVSAV 61
Query: 133 NKHG 136
N+ G
Sbjct: 62 NEAG 65
>gnl|CDD|143213 cd05736, Ig2_Follistatin_like, Second immunoglobulin (Ig)-like
domain of a follistatin-like molecule encoded by the
Mahya gene and similar proteins. Ig2_Follistatin_like:
domain similar to the second immunoglobulin (Ig)-like
domain found in a follistatin-like molecule encoded by
the CNS-related Mahya gene. Mahya genes have been
retained in certain Bilaterian branches during
evolution. They are conserved in Hymenoptera and
Deuterostomes, but are absent from other metazoan
species such as fruit fly and nematode. Mahya proteins
are secretory, with a follistatin-like domain
(Kazal-type serine/threonine protease inhibitor domain
and EF-hand calcium-binding domain), two Ig-like
domains, and a novel C-terminal domain. Mahya may be
involved in learning and memory and in processing of
sensory information in Hymenoptera and vertebrates.
Follistatin is a secreted, multidomain protein that
binds activins with high affinity and antagonizes their
signaling.
Length = 76
Score = 35.3 bits (81), Expect = 0.002
Identities = 21/72 (29%), Positives = 34/72 (47%), Gaps = 1/72 (1%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELS-KRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKH 135
L C G P P + W K +++ K ++ + I + + ED+G Y C+A N+
Sbjct: 3 LRCHAEGIPLPRLTWLKNGMDITPKLSKQLTLIANGSELHISNVRYEDTGAYTCIAKNEA 62
Query: 136 GTDETNCVVIVE 147
G DE + VE
Sbjct: 63 GVDEDISSLFVE 74
>gnl|CDD|143223 cd05746, Ig4_Peroxidasin, Fourth immunoglobulin (Ig)-like domain of
peroxidasin. Ig4_Peroxidasin: the fourth immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted, and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells, which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 69
Score = 34.5 bits (79), Expect = 0.003
Identities = 19/69 (27%), Positives = 32/69 (46%), Gaps = 2/69 (2%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKH 135
++ C G P PT+ W K ++++ +G ++ I D D G Y+CVA N
Sbjct: 2 QIPCSAQGDPEPTITWNKDGVQVTESGKFHISPEGYLA--IRDVGVADQGRYECVARNTI 59
Query: 136 GTDETNCVV 144
G + V+
Sbjct: 60 GYASVSMVL 68
>gnl|CDD|143199 cd05722, Ig1_Neogenin, First immunoglobulin (Ig)-like domain in
neogenin and similar proteins. Ig1_Neogenin: first
immunoglobulin (Ig)-like domain in neogenin and related
proteins. Neogenin is a cell surface protein which is
expressed in the developing nervous system of vertebrate
embryos in the growing nerve cells. It is also expressed
in other embryonic tissues, and may play a general role
in developmental processes such as cell migration,
cell-cell recognition, and tissue growth regulation.
Included in this group is the tumor suppressor protein
DCC, which is deleted in colorectal carcinoma . DCC and
neogenin each have four Ig-like domains followed by six
fibronectin type III domains, a transmembrane domain,
and an intracellular domain.
Length = 95
Score = 35.1 bits (81), Expect = 0.003
Identities = 23/80 (28%), Positives = 34/80 (42%), Gaps = 7/80 (8%)
Query: 62 FLLRPR-VMQVRQTCKLL-CCLSGKPPPTVKWYKGNR--ELSKRDYSMSYSDG---VVSM 114
FL P ++ VR +L C G+PPP ++W K L + +G + S+
Sbjct: 2 FLSEPSDIVAVRGGPVVLNCSAEGEPPPKIEWKKDGVLLNLVSDERRQQLPNGSLLITSV 61
Query: 115 EIIDCKPEDSGEYKCVATNK 134
D G Y+CVA N
Sbjct: 62 VHSKHNKPDEGFYQCVAQND 81
>gnl|CDD|143301 cd05893, Ig_Palladin_C, C-terminal immunoglobulin (Ig)-like domain
of palladin. Ig_Palladin_C: C-terminal immunoglobulin
(Ig)-like domain of palladin. Palladin belongs to the
palladin-myotilin-myopalladin family. Proteins belonging
to this family contain multiple Ig-like domains and
function as scaffolds, modulating actin cytoskeleton.
Palladin binds to alpha-actinin ezrin,
vasodilator-stimulated phosphoprotein VASP, SPIN90 (DIP,
mDia interacting protein), and Src. Palladin also binds
F-actin directly, via its Ig3 domain. Palladin is
expressed as several alternatively spliced isoforms,
having various combinations of Ig-like domains, in a
cell-type-specific manner. It has been suggested that
palladin's different Ig-like domains may be specialized
for distinct functions.
Length = 75
Score = 33.9 bits (77), Expect = 0.005
Identities = 20/64 (31%), Positives = 29/64 (45%), Gaps = 3/64 (4%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSD---GVVSMEIIDCKPEDSGEYKCVAT 132
+L C +SG P P + W K N L+ +S G + + I ED+G Y A
Sbjct: 2 RLECRVSGVPHPQIFWKKENESLTHNTDRVSMHQDNCGYICLLIQGATKEDAGWYTVSAK 61
Query: 133 NKHG 136
N+ G
Sbjct: 62 NEAG 65
>gnl|CDD|143282 cd05874, Ig6_NrCAM, Sixth immunoglobulin (Ig)-like domain of NrCAM
(Ng (neuronglia) CAM-related cell adhesion molecule).
Ig6_NrCAM: sixth immunoglobulin (Ig)-like domain of
NrCAM (Ng (neuronglia) CAM-related cell adhesion
molecule). NrCAM belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region,
and an intracellular domain. NrCAM is primarily
expressed in the nervous system.
Length = 77
Score = 33.8 bits (77), Expect = 0.007
Identities = 20/72 (27%), Positives = 37/72 (51%), Gaps = 5/72 (6%)
Query: 79 CCLSGKPPPTVKWYKGNR--ELSKRDY-SMSYSDGVVSMEIIDCKPEDS--GEYKCVATN 133
C GKPPP+ W + ++ K +M + G + + I++ + ++ G Y+C A N
Sbjct: 5 CEAKGKPPPSFSWTRNGTHFDIDKDPKVTMKPNTGTLVINIMNGEKAEAYEGVYQCTARN 64
Query: 134 KHGTDETNCVVI 145
+ G +N +VI
Sbjct: 65 ERGAAVSNNIVI 76
>gnl|CDD|143231 cd05754, Ig3_Perlecan_like, Third immunoglobulin (Ig)-like domain
found in Perlecan and similar proteins.
Ig3_Perlecan_like: domain similar to the third
immunoglobulin (Ig)-like domain found in Perlecan.
Perlecan is a large multi-domain heparin sulfate
proteoglycan, important in tissue development and
organogenesis. Perlecan can be represented as 5 major
portions; its fourth major portion (domain IV) is a
tandem repeat of immunoglobulin-like domains (Ig2-Ig15),
which can vary in size due to alternative splicing.
Perlecan binds many cellular and extracellular ligands.
Its domain IV region has many binding sites. Some of
these have been mapped at the level of individual
Ig-like domains, including a site restricted to the Ig5
domain for heparin/sulfatide, a site restricted to the
Ig3 domain for nidogen-1 and nidogen-2, a site
restricted to Ig4-5 for fibronectin, and sites
restricted to Ig2 and to Ig13-15 for fibulin-2.
Length = 85
Score = 33.3 bits (76), Expect = 0.010
Identities = 21/83 (25%), Positives = 34/83 (40%), Gaps = 8/83 (9%)
Query: 66 PRVMQVR--QTCKLLC-CLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPE 122
PR +VR +C S P T+ W + L R +G+++ I + +
Sbjct: 8 PRSQEVRPGADVSFICRAKSKSPAYTLVWTRVGGGLPSRAMD---FNGILT--IRNVQLS 62
Query: 123 DSGEYKCVATNKHGTDETNCVVI 145
D+G Y C +N TDE +
Sbjct: 63 DAGTYVCTGSNMLDTDEATATLY 85
>gnl|CDD|143300 cd05892, Ig_Myotilin_C, C-terminal immunoglobulin (Ig)-like domain
of myotilin. Ig_Myotilin_C: C-terminal immunoglobulin
(Ig)-like domain of myotilin. Mytolin belongs to the
palladin-myotilin-myopalladin family. Proteins belonging
to the latter family contain multiple Ig-like domains
and function as scaffolds, modulating actin
cytoskeleton. Myotilin is most abundant in skeletal and
cardiac muscle, and is involved in maintaining sarcomere
integrity. It binds to alpha-actinin, filamin and actin.
Mutations in myotilin lead to muscle disorders.
Length = 75
Score = 33.0 bits (75), Expect = 0.011
Identities = 21/64 (32%), Positives = 32/64 (50%), Gaps = 3/64 (4%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMS-YSD--GVVSMEIIDCKPEDSGEYKCVAT 132
KL C +S PPP + W + N + +S Y D G V++ I + +D+G Y A
Sbjct: 2 KLECQISAIPPPKIFWKRNNEMVQYNTDRISLYQDNSGRVTLLIKNVNKKDAGWYTVSAV 61
Query: 133 NKHG 136
N+ G
Sbjct: 62 NEAG 65
>gnl|CDD|143303 cd05895, Ig_Pro_neuregulin-1, Immunoglobulin (Ig)-like domain found
in neuregulin (NRG)-1. Ig_Pro_neuregulin-1:
immunoglobulin (Ig)-like domain found in neuregulin
(NRG)-1. There are many NRG-1 isoforms which arise from
the alternative splicing of mRNA. NRG-1 belongs to the
neuregulin gene family, which is comprised of four
genes. This group represents NRG-1. NRGs are signaling
molecules, which participate in cell-cell interactions
in the nervous system, breast, and heart, and other
organ systems, and are implicated in the pathology of
diseases including schizophrenia, multiple sclerosis,
and breast cancer. The NRG-1 protein binds to and
activates the tyrosine kinases receptors ErbB3 and
ErbB4, initiating signaling cascades. NRG-1 has multiple
functions; for example, in the brain it regulates
various processes such as radial glia formation and
neuronal migration, dendritic development, and
expression of neurotransmitters receptors; in the
peripheral nervous system NRG-1 regulates processes such
as target cell differentiation, and Schwann cell
survival.
Length = 76
Score = 33.1 bits (75), Expect = 0.011
Identities = 17/68 (25%), Positives = 29/68 (42%), Gaps = 5/68 (7%)
Query: 82 SGKPPPTVKWYKGNRELSKRDYSMSY-----SDGVVSMEIIDCKPEDSGEYKCVATNKHG 136
S P KW+K +E+ ++ + ++I D+GEYKC+ ++K G
Sbjct: 9 SEYPSLRFKWFKNGKEIGAKNKPDNKIKIRKKKKSSELQISKASLADNGEYKCMVSSKLG 68
Query: 137 TDETNCVV 144
D V
Sbjct: 69 NDSVTANV 76
>gnl|CDD|143263 cd05855, Ig_TrkB_d5, Fifth domain (immunoglobulin-like) of Trk
receptor TrkB. TrkB_d5: the fifth domain of Trk
receptor TrkB, this is an immunoglobulin (Ig)-like
domain which binds to neurotrophin. The Trk family of
receptors are tyrosine kinase receptors, which mediate
the trophic effects of the neurotrophin Nerve growth
factor (NGF) family. The Trks are activated by
dimerization, leading to autophosphorylation of
intracellular tyrosine residues, and triggering the
signal transduction pathway. TrkB shares significant
sequence homology and domain organization with TrkA, and
TrkC. The first three domains are leucine-rich domains.
The fourth and fifth domains are Ig-like domains playing
a part in ligand binding. TrKB is recognized by
brain-derived neurotrophic factor (BDNF) and
neurotrophin (NT)-4. In some cell systems NT-3 can
activate TrkA and TrkB receptors. TrKB transcripts are
found throughout multiple structures of the central and
peripheral nervous systems.
Length = 79
Score = 33.3 bits (76), Expect = 0.011
Identities = 19/67 (28%), Positives = 32/67 (47%), Gaps = 6/67 (8%)
Query: 81 LSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDS------GEYKCVATNK 134
+ G P PT++W+ L++ +Y + + + E C D+ G Y VA N+
Sbjct: 7 VKGNPKPTLQWFHEGAILNESEYICTKIHVINNTEYHGCLQLDNPTHLNNGIYTLVAKNE 66
Query: 135 HGTDETN 141
+G DE N
Sbjct: 67 YGEDEKN 73
>gnl|CDD|143211 cd05734, Ig7_DSCAM, Seventh immunoglobulin (Ig)-like domain of Down
Syndrome Cell Adhesion molecule (DSCAM). Ig7_DSCAM: the
seventh immunoglobulin (Ig)-like domain of Down Syndrome
Cell Adhesion molecule (DSCAM). DSCAM is a cell adhesion
molecule expressed largely in the developing nervous
system. The gene encoding DSCAM is located at human
chromosome 21q22, the locus associated with the mental
retardation phenotype of Down Syndrome. DSCAM is
predicted to be the largest member of the IG
superfamily. It has been demonstrated that DSCAM can
mediate cation-independent homophilic intercellular
adhesion.
Length = 79
Score = 32.6 bits (74), Expect = 0.019
Identities = 20/68 (29%), Positives = 25/68 (36%), Gaps = 6/68 (8%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVV------SMEIIDCKPEDSGEYKCV 130
L C G PPPT+ W + G + S+ I EDSG Y C
Sbjct: 3 LNCSAEGYPPPTIVWKHSKGRGHPQHTHTCCLAGRIQLLSNGSLLIKHVLEEDSGYYLCK 62
Query: 131 ATNKHGTD 138
+N G D
Sbjct: 63 VSNDVGAD 70
>gnl|CDD|143273 cd05865, Ig1_NCAM-1, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1. Ig1_NCAM-1: first
immunoglobulin (Ig)-like domain of neural cell adhesion
molecule NCAM-1. NCAM-1 plays important roles in the
development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as three
major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate dimerization
of NCAM molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain.
Length = 96
Score = 32.7 bits (74), Expect = 0.019
Identities = 18/72 (25%), Positives = 35/72 (48%), Gaps = 5/72 (6%)
Query: 77 LLCCLSGKPPPT-VKWYKGNRE---LSKRDYSMSYSDGVVS-MEIIDCKPEDSGEYKCVA 131
LC ++G+ + W+ N E +++ S+ +D S + I + +D+G YKCV
Sbjct: 20 FLCQVAGEAKDKDISWFSPNGEKLTPNQQRISVVRNDDYSSTLTIYNANIDDAGIYKCVV 79
Query: 132 TNKHGTDETNCV 143
+N+ + V
Sbjct: 80 SNEDEGESEATV 91
>gnl|CDD|143267 cd05859, Ig4_PDGFR-alpha, Fourth immunoglobulin (Ig)-like domain of
platelet-derived growth factor receptor (PDGFR) alpha.
IG4_PDGFR-alpha: The fourth immunoglobulin (Ig)-like
domain of platelet-derived growth factor receptor
(PDGFR) alpha. PDGF is a potent mitogen for connective
tissue cells. PDGF-stimulated processes are mediated by
three different PDGFs (PDGF-A,-B, and C). PDGFR alpha
binds to all three PDGFs, whereas the PDGFR beta (not
included in this group) binds only to PDGF-B. PDGF alpha
is organized as an extracellular component having five
Ig-like domains, a transmembrane segment, and a
cytoplasmic portion having protein tyrosine kinase
activity. In mice, PDGFR alpha and PDGFR beta are
essential for normal development.
Length = 101
Score = 32.5 bits (74), Expect = 0.026
Identities = 19/56 (33%), Positives = 29/56 (51%), Gaps = 7/56 (12%)
Query: 85 PPPTVKWYKGNRELSKRDYSMSYSDGVVS-------MEIIDCKPEDSGEYKCVATN 133
PPP ++W K NR L + ++ S+ V +++I K EDSG Y +A N
Sbjct: 31 PPPQIRWLKDNRTLIENLTEITTSEHNVQETRYVSKLKLIRAKEEDSGLYTALAQN 86
>gnl|CDD|143234 cd05757, Ig2_IL1R_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor (IL1R) and similar proteins.
Ig2_IL1R_like: domain similar to the second
immunoglobulin (Ig)-like domain of interleukin-1
receptor (IL1R). IL-1 alpha and IL-1 beta are cytokines
which participate in the regulation of inflammation,
immune responses, and hematopoiesis. These cytokines
bind to the IL-1 receptor type 1 (IL1R1), which is
activated on additional association with an accessory
protein, IL1RAP. IL-1 also binds a second receptor
designated type II (IL1R2). Mature IL1R1 consists of
three IG-like domains, a transmembrane domain, and a
large cytoplasmic domain. Mature IL1R2 is organized
similarly except that it has a short cytoplasmic domain.
The latter does not initiate signal transduction. A
naturally occurring cytokine IL-1RA (IL-1 receptor
antagonist) is widely expressed and binds to IL-1
receptors, inhibiting the binding of IL-1 alpha and IL-1
beta. This group also contains ILIR-like 1 (IL1R1L)
which maps to the same chromosomal location as IL1R1 and
IL1R2.
Length = 92
Score = 32.3 bits (74), Expect = 0.028
Identities = 14/49 (28%), Positives = 19/49 (38%), Gaps = 3/49 (6%)
Query: 87 PTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKH 135
P V+WYK + L + I + ED+G Y C T H
Sbjct: 30 PPVQWYKDCKLLEGDRKRFVKGS---KLLIQNVTEEDAGNYTCKLTFTH 75
>gnl|CDD|143238 cd05761, Ig2_Necl-1-4_like, Second immunoglobulin (Ig)-like
domain of the nectin-like molecules Necl-1 - Necl-4
(also known as cell adhesion molecules CADM3, CADM1,
CADM2, and CADM4, respectively). Ig2_Necl-1-4_like:
domain similar to the second immunoglobulin (Ig)-like
domain of the nectin-like molecules Necl-1 (also known
as cell adhesion molecule 3 (CADM3)), Necl-2 (CADM1),
Necl-3 (CADM2) and Necl-4 (CADM4). These nectin-like
molecules have similar domain structures to those of
nectins. At least five nectin-like molecules have been
identified (Necl-1 - Necl-5). These have an
extracellular region containing three Ig-like domains,
one transmembrane region, and one cytoplasmic region.
The N-terminal Ig-like domain of the extracellular
region belongs to the V-type subfamily of Ig domains,
is essential to cell-cell adhesion, and plays a part in
the interaction with the envelope glycoprotein D of
various viruses. Necl-1 and Necl-2 have
Ca(2+)-independent homophilic and heterophilic
cell-cell adhesion activity. Necl-1 is specifically
expressed in neural tissue and is important to the
formation of synapses, axon bundles, and myelinated
axons. Necl-2 is expressed in a wide variety of
tissues, and is a putative tumour suppressor gene,
which is downregulated in aggressive neuroblastoma.
Necl-3 has been shown to accumulate in tissues of the
central and peripheral nervous system, where it is
expressed in ependymal cells and myelinated axons. It
is observed at the interface between the axon shaft and
the myelin sheath. Necl-4 is expressed on Schwann
cells, and plays a key part in initiating peripheral
nervous system (PNS) myelination. Necl-4 participates
in cell-cell adhesion and is proposed to play a role in
tumor suppression.
Length = 82
Score = 31.9 bits (73), Expect = 0.028
Identities = 11/23 (47%), Positives = 16/23 (69%), Gaps = 2/23 (8%)
Query: 78 LCCLS--GKPPPTVKWYKGNREL 98
L C S KP T++W+KG++EL
Sbjct: 4 LTCTSSGSKPAATIRWFKGDKEL 26
>gnl|CDD|143174 cd04973, Ig1_FGFR, First immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig1_FGFR: The
first immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth factors
(FGFs) participate in morphogenesis, development,
angiogenesis, and wound healing. These FGF-stimulated
processes are mediated by four FGFR tyrosine kinases
(FGRF1-4). FGFRs are comprised of an extracellular
portion consisting of three Ig-like domains, a
transmembrane helix, and a cytoplasmic portion having
protein tyrosine kinase activity. The highly conserved
Ig-like domains 2 and 3, and the linker region between
D2 and D3 define a general binding site for all FGFs.
Length = 79
Score = 31.8 bits (72), Expect = 0.030
Identities = 14/33 (42%), Positives = 19/33 (57%)
Query: 114 MEIIDCKPEDSGEYKCVATNKHGTDETNCVVIV 146
++I D P DSG Y CV ++ G+D T V V
Sbjct: 47 VQIKDAVPRDSGLYACVTSSPSGSDTTYFSVNV 79
>gnl|CDD|143317 cd07693, Ig1_Robo, First immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors and similar proteins. Ig1_Robo:
domain similar to the first immunoglobulin (Ig)-like
domain in Robo (roundabout) receptors. Robo receptors
play a role in the development of the central nervous
system (CNS), and are receptors of Slit protein. Slit is
a repellant secreted by the neural cells in the midline.
Slit acts through Robo to prevent most neurons from
crossing the midline from either side. Three mammalian
Robo homologs (robo1, -2, and -3), and three mammalian
Slit homologs (Slit-1,-2, -3), have been identified.
Commissural axons, which cross the midline, express low
levels of Robo; longitudinal axons, which avoid the
midline, express high levels of Robo. robo1, -2, and -3
are expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 100
Score = 32.1 bits (73), Expect = 0.033
Identities = 18/67 (26%), Positives = 29/67 (43%), Gaps = 8/67 (11%)
Query: 79 CCLSGKPPPTVKWYKGNREL-----SKRDYSMSYSDG-VVSMEIIDCKP--EDSGEYKCV 130
C G+P PT++W K + L R + + G + + ++ + D G Y CV
Sbjct: 23 CKAEGRPTPTIQWLKNGQPLETDKDDPRSHRIVLPSGSLFFLRVVHGRKGRSDEGVYVCV 82
Query: 131 ATNKHGT 137
A N G
Sbjct: 83 AHNSLGE 89
>gnl|CDD|143212 cd05735, Ig8_DSCAM, Eight immunoglobulin (Ig) domain of Down
Syndrome Cell Adhesion molecule (DSCAM). Ig8_DSCAM:
the eight immunoglobulin (Ig) domain of Down Syndrome
Cell Adhesion molecule (DSCAM). DSCAM is a cell adhesion
molecule expressed largely in the developing nervous
system. The gene encoding DSCAM is located at human
chromosome 21q22, the locus associated with the mental
retardation phenotype of Down Syndrome. DSCAM is
predicted to be the largest member of the IG
superfamily. It has been demonstrated that DSCAM can
mediate cation-independent homophilic intercellular
adhesion.
Length = 88
Score = 31.5 bits (71), Expect = 0.047
Identities = 25/81 (30%), Positives = 40/81 (49%), Gaps = 6/81 (7%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNR----ELSKRDYSM-SYSDGVVS-MEIIDCKPEDSGE 126
Q ++ C G+ P V+W K +R E+S+ S D V+S ++I+ EDSG
Sbjct: 2 QKKEMSCTAHGEKPIIVRWEKEDRIINPEMSRYLVSTKEVGDEVISTLQILPTVREDSGF 61
Query: 127 YKCVATNKHGTDETNCVVIVE 147
+ C A N +G D + V+
Sbjct: 62 FSCHAINSYGEDRGIIQLTVQ 82
>gnl|CDD|143193 cd05716, Ig_pIgR, Immunoglobulin (Ig)-like domain in the polymeric
Ig receptor (pIgR). Ig_pIgR: Immunoglobulin (Ig)-like
domain in the polymeric Ig receptor (pIgR). pIgR
delivers dimeric IgA and pentameric IgM to mucosal
secretions. Polymeric immunoglobulin (pIgs) are the
first defense against pathogens and toxins. IgA and IgM
can form polymers via an 18-residue extension at their
c-termini referred to as the tailpiece. pIgR transports
pIgs across mucosal epithelia into mucosal secretions.
Human pIgR is a glycosylated type I transmembrane
protein, comprised of a 620 residue extracellular
region, a 23 residue transmembrane region, and a 103
residue cytoplasmic tail. The extracellular region
contains five domains that share sequence similarity
with Ig variable (v) regions.
Length = 98
Score = 31.6 bits (72), Expect = 0.056
Identities = 17/69 (24%), Positives = 27/69 (39%), Gaps = 7/69 (10%)
Query: 75 CK---LLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVA 131
CK CCL +V+ R +S D +GV ++ + + ED+G Y C
Sbjct: 28 CKWGSAGCCLIIVSEGSVQSQYEGR-VSLTDDPD---NGVFTVTLNQLRKEDAGWYWCGV 83
Query: 132 TNKHGTDET 140
+ T
Sbjct: 84 GDDGDQGLT 92
>gnl|CDD|143274 cd05866, Ig1_NCAM-2, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-2. Ig1_NCAM-2:
first immunoglobulin (Ig)-like domain of neural cell
adhesion molecule NCAM-2 (OCAM/mamFas II, RNCAM). NCAM-2
is organized similarly to NCAM , including five
N-terminal Ig-like domains and two fibronectin type III
domains. NCAM-2 is differentially expressed in the
developing and mature olfactory epithelium (OE), and may
function like NCAM, as an adhesion molecule.
Length = 92
Score = 31.2 bits (70), Expect = 0.081
Identities = 21/73 (28%), Positives = 37/73 (50%), Gaps = 4/73 (5%)
Query: 76 KLLCCLSGKPPPTVKWY--KGNRELSKRDYSMSYSDGVVS-MEIIDCKPEDSGEYKCVAT 132
K C + P ++ WY +G + +S + + +GV S + I + ED+G Y+C AT
Sbjct: 18 KFFTCTAIGEPESIDWYNPQGEKIVSSQRVVV-QKEGVRSRLTIYNANIEDAGIYRCQAT 76
Query: 133 NKHGTDETNCVVI 145
+ G + VV+
Sbjct: 77 DAKGQTQEATVVL 89
>gnl|CDD|143283 cd05875, Ig6_hNeurofascin_like, Sixth immunoglobulin (Ig)-like
domain of human neurofascin (NF).
Ig6_hNeurofascin_like: the sixth immunoglobulin
(Ig)-like domain of human neurofascin (NF). NF belongs
to the L1 subfamily of cell adhesion molecules (CAMs)
and is comprised of an extracellular region having six
Ig-like domains and five fibronectin type III domains, a
transmembrane region, and a cytoplasmic domain. NF has
many alternatively spliced isoforms having different
temporal expression patterns during development. NF
participates in axon subcellular targeting and synapse
formation, however little is known of the functions of
the different isoforms.
Length = 77
Score = 30.3 bits (68), Expect = 0.097
Identities = 24/71 (33%), Positives = 34/71 (47%), Gaps = 11/71 (15%)
Query: 79 CCLSGKPPPTVKWYKGNRELS-KRD--YSMSYSDGVVSMEIIDC----KPED-SGEYKCV 130
C G P PT +W + + + +D SM G + +ID +PED GEY+C
Sbjct: 5 CEAKGNPVPTFQWTRNGKFFNVAKDPRVSMRRRSGTL---VIDFSGGGRPEDYEGEYQCF 61
Query: 131 ATNKHGTDETN 141
A N GT +N
Sbjct: 62 ARNNLGTALSN 72
>gnl|CDD|143271 cd05863, Ig2_VEGFR-3, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
Ig2_VEGFR-3: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-3 (Flt-4) binds
two members of the VEGF family (VEGF-C and -D) and is
involved in tumor angiogenesis and growth.
Length = 67
Score = 30.3 bits (68), Expect = 0.099
Identities = 16/59 (27%), Positives = 25/59 (42%), Gaps = 7/59 (11%)
Query: 76 KLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNK 134
KL ++ PPP +WYK + +S + S++I D +G Y V N
Sbjct: 2 KLPVKVAAYPPPEFQWYKDGKLISGKHSQH-------SLQIKDVTEASAGTYTLVLWNS 53
>gnl|CDD|143258 cd05850, Ig1_Contactin-2, First Ig domain of contactin-2.
Ig1_Contactin-2: First Ig domain of the neural cell
adhesion molecule contactin-2-like. Contactins are
comprised of six Ig domains followed by four fibronectin
type III (FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-2 (TAG-1,
axonin-1) facilitates cell adhesion by homophilic
binding between molecules in apposed membranes. It may
play a part in the neuronal processes of neurite
outgrowth, axon guidance and fasciculation, and neuronal
migration. The first four Ig domains form the
intermolecular binding fragment, which arranges as a
compact U-shaped module by contacts between IG domains 1
and 4, and domains 2 and 3. The different contactins
show different expression patterns in the central
nervous system. During development and in adulthood,
contactin-2 is transiently expressed in subsets of
central and peripheral neurons. Contactin-2 is also
expressed in retinal amacrine cells in the developing
chick retina, corresponding to the period of formation
and maturation of AC processes.
Length = 94
Score = 30.7 bits (69), Expect = 0.12
Identities = 18/64 (28%), Positives = 30/64 (46%), Gaps = 6/64 (9%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELS---KRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
L C PP T +W E+ + Y++ + V++ K D+G Y+C+A N
Sbjct: 24 LGCRARASPPATYRWKMNGTEIKFAPESRYTLVAGNLVINNPQ---KARDAGSYQCLAIN 80
Query: 134 KHGT 137
+ GT
Sbjct: 81 RCGT 84
>gnl|CDD|143235 cd05758, Ig5_KIRREL3-like, Fifth immunoglobulin (Ig)-like domain of
Kirrel (kin of irregular chiasm-like) 3 (also known as
Neph2) and similar proteins. Ig5_KIRREL3-like: domain
similar to the fifth immunoglobulin (Ig)-like domain of
Kirrel (kin of irregular chiasm-like) 3 (also known as
Neph2). This protein has five Ig-like domains, one
transmembrane domain, and a cytoplasmic tail. Included
in this group is mammalian Kirrel (Neph1), Kirrel2
(Neph3), and Drosophila RST (irregular chiasm
C-roughest) protein. These proteins contain multiple Ig
domains, have properties of cell adhesion molecules, and
are important in organ development.
Length = 98
Score = 30.5 bits (69), Expect = 0.12
Identities = 18/77 (23%), Positives = 27/77 (35%), Gaps = 9/77 (11%)
Query: 71 VRQTCKLLCCLSGKPPP-TVKWYKGNRELSK---RDYSM---SYSDGVVSMEIIDCKPED 123
+ ++ C + PPP + W EL Y++ GV+S I E
Sbjct: 15 LGDKGRVECFIFSTPPPDRIVWTWKENELESGSSGRYTVETDPSPGGVLSTLTISNTQES 74
Query: 124 --SGEYKCVATNKHGTD 138
Y C A N G+
Sbjct: 75 DFQTSYNCTAWNSFGSG 91
>gnl|CDD|143278 cd05870, Ig5_NCAM-2, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-2 (also known as
OCAM/mamFas II and RNCAM). Ig5_NCAM-2: the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-2 (also known as OCAM/mamFas II and
RNCAM). NCAM-2 is organized similarly to NCAM ,
including five N-terminal Ig-like domains and two
fibronectin type III domains. NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE), and may function like NCAM, as an
adhesion molecule.
Length = 98
Score = 30.3 bits (68), Expect = 0.17
Identities = 22/89 (24%), Positives = 38/89 (42%), Gaps = 17/89 (19%)
Query: 64 LRPRVMQVRQ-------TCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVV---- 112
++P ++Q++ L C G+P P + W + + + + S DG +
Sbjct: 1 VQPHIIQLKNETTVENGAATLSCKAEGEPIPEITWKRASDGHTFSEGDKS-PDGRIEVKG 59
Query: 113 -----SMEIIDCKPEDSGEYKCVATNKHG 136
S+ I D K DSG Y C A ++ G
Sbjct: 60 QHGESSLHIKDVKLSDSGRYDCEAASRIG 88
>gnl|CDD|219745 pfam08205, C2-set_2, CD80-like C2-set immunoglobulin domain.
These domains belong to the immunoglobulin superfamily.
Length = 89
Score = 29.7 bits (67), Expect = 0.22
Identities = 11/26 (42%), Positives = 13/26 (50%), Gaps = 2/26 (7%)
Query: 76 KLLCCLS--GKPPPTVKWYKGNRELS 99
+ C S GKP P + WY REL
Sbjct: 17 VVATCSSAGGKPAPRITWYLDGRELE 42
>gnl|CDD|143329 cd07705, Ig2_Necl-1, Second immunoglobulin (Ig)-like domain of
nectin-like molcule-1 (Necl-1, also known as cell
adhesion molecule3 (CADM3)). Ig2_Necl-1: second
immunoglobulin (Ig)-like domain of nectin-like molcule-1
(Necl-1, also known as cell adhesion molecule3 (CADM3)).
These nectin-like molecules have similar domain
structures to those of nectins. At least five
nectin-like molecules have been identified (Necl-1 -
Necl-5). These have an extracellular region containing
three Ig-like domains, one transmembrane region, and one
cytoplasmic region. The N-terminal Ig-like domain of the
extracellular region belongs to the V-type subfamily of
Ig domains, is essential to cell-cell adhesion, and
plays a part in the interaction with the envelope
glycoprotein D of various viruses. Necl-1 and Necl-2
have Ca(2+)-independent homophilic and heterophilic
cell-cell adhesion activity. Necl-1 is specifically
expressed in neural tissue and is important to the
formation of synapses, axon bundles, and myelinated
axons. Necl-2 is expressed in a wide variety of tissues,
and is a putative tumour suppressor gene, which is
downregulated in aggressive neuroblastoma. Ig domains
are likely to participate in ligand binding and
recognition.
Length = 83
Score = 29.2 bits (65), Expect = 0.37
Identities = 14/33 (42%), Positives = 18/33 (54%), Gaps = 1/33 (3%)
Query: 74 TCKLLCCLSG-KPPPTVKWYKGNRELSKRDYSM 105
KL C SG KP +KW KG++EL S+
Sbjct: 1 KAKLRCTSSGSKPAANIKWRKGDQELEGAPTSV 33
>gnl|CDD|143291 cd05883, Ig2_Necl-2, Second immunoglobulin (Ig)-like domain of
nectin-like molecule 2 (also known as cell adhesion
molecule 1 (CADM1)). Ig2_Necl-2: second immunoglobulin
(Ig)-like domain of nectin-like molecule 2 (also known
as cell adhesion molecule 1 (CADM1)). Nectin-like
molecules (Necls) have similar domain structures to
those of nectins. At least five nectin-like molecules
have been identified (Necl-1 - Necl-5). These have an
extracellular region containing three Ig-like domains,
one transmembrane region, and one cytoplasmic region.
Necl-2 has Ca(2+)-independent homophilic and
heterophilic cell-cell adhesion activity. Necl-1 is
expressed in a wide variety of tissues, and is a
putative tumour suppressor gene, which is downregulated
in aggressive neuroblastoma. Ig domains are likely to
participate in ligand binding and recognition.
Length = 82
Score = 28.8 bits (64), Expect = 0.39
Identities = 16/48 (33%), Positives = 27/48 (56%), Gaps = 3/48 (6%)
Query: 81 LSGKPPPTVKWYKGNRELS-KRDYSMSYSD--GVVSMEIIDCKPEDSG 125
++ KP T++W+KGN+EL+ K ++S V S ++ ED G
Sbjct: 9 MASKPAATIRWFKGNKELTGKSTVEETWSRMFTVTSQLMLKVTKEDDG 56
>gnl|CDD|143173 cd04972, Ig_TrkABC_d4, Fourth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d4: the fourth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrKB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 90
Score = 29.0 bits (65), Expect = 0.43
Identities = 13/62 (20%), Positives = 24/62 (38%), Gaps = 1/62 (1%)
Query: 79 CCLSGKPPPTVKWYK-GNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGT 137
C G P P V+W G + R ++ + + ++++ + E C A N G
Sbjct: 22 CTAEGSPLPKVEWIIAGLIVIQTRTDTLETTVDIYNLQLSNITSETQTTVTCTAENPVGQ 81
Query: 138 DE 139
Sbjct: 82 AN 83
>gnl|CDD|227469 COG5140, UFD1, Ubiquitin fusion-degradation protein
[Posttranslational modification, protein turnover,
chaperones].
Length = 331
Score = 30.3 bits (68), Expect = 0.45
Identities = 14/59 (23%), Positives = 24/59 (40%), Gaps = 1/59 (1%)
Query: 98 LSKRD-YSMSYSDGVVSMEIIDCKPEDSGEYKCVATNKHGTDETNCVVIVESEEESKEQ 155
L++ D + Y+D V S++ PE S V D + E ++ KE+
Sbjct: 154 LTEGDEIEIQYNDEVGSIKFTVVHPEPSANAIYVVETDLVVDFLPPIGYKEKAQQDKER 212
>gnl|CDD|143245 cd05768, IgC_CH4, CH4 domain (fourth constant Ig domain of the
heavy chain) in immunoglobulin. IgC_CH4: The fourth
immunoglobulin constant domain (IgC), of immunoglobulin
(Ig) heavy chains. This domain is found on the Fc
fragment. The basic structure of Ig molecules is a
tetramer of two light chains and two heavy chains linked
by disulfide bonds. There are two types of light chains:
kappa and lambda; each composed of a constant domain and
a variable domain. There are five types of heavy chains:
alpha, delta, epsilon, gamma and mu, all consisting of a
variable domain (VH) and three (in alpha, delta and
gamma) or four (in epsilon and mu) constant domains (CH1
to CH4). Ig molecules are modular proteins, in which the
variable and constant domains have clear, conserved
sequence patterns.
Length = 102
Score = 28.5 bits (64), Expect = 0.71
Identities = 19/83 (22%), Positives = 29/83 (34%), Gaps = 21/83 (25%)
Query: 72 RQTCKLLCCLSGKPPPT--VKWYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKC 129
++T L C + G P VKW + + LSK+ Y + M+ E G
Sbjct: 16 QETATLTCLVKGFSPSDIFVKWLQNGQPLSKQKYVTT-----APMQ------EPGGNESY 64
Query: 130 VATNKHGTDETN--------CVV 144
+K + CVV
Sbjct: 65 FLYSKLTVSAEDWNAGDVFTCVV 87
>gnl|CDD|219514 pfam07686, V-set, Immunoglobulin V-set domain. This domain is
found in antibodies as well as neural protein P0 and
CTL4 amongst others.
Length = 114
Score = 28.0 bits (62), Expect = 1.3
Identities = 13/42 (30%), Positives = 18/42 (42%), Gaps = 5/42 (11%)
Query: 92 YKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVATN 133
+KG LS S S+ I + + DSG Y C +N
Sbjct: 64 FKGRVTLSGNG-----SKNDFSLTISNLRLSDSGTYTCAVSN 100
>gnl|CDD|143167 cd00099, IgV, Immunoglobulin variable domain (IgV). IgV:
Immunoglobulin variable domain (IgV). Members of the IgV
family are components of immunoglobulin (Ig) and T cell
receptors. The basic structure of Ig molecules is a
tetramer of two light chains and two heavy chains linked
by disulfide bonds. In Ig, each chain is composed of one
variable domain (IgV) and one or more constant domains
(IgC); these names reflect the fact that the variability
in sequences is higher in the variable domain than in
the constant domain. Within the variable domain, there
are regions of even more variability called the
hypervariable or complementarity-determining regions
(CDRs) which are responsible for antigen binding. A
predominant feature of most Ig domains is the disulfide
bridge connecting 2 beta-sheets with a tryptophan
residue packed against the disulfide bond.
Length = 105
Score = 27.7 bits (62), Expect = 1.3
Identities = 17/93 (18%), Positives = 29/93 (31%), Gaps = 21/93 (22%)
Query: 68 VMQVRQTCKLLCCLSGKPP-PTVKWYKGN------------------RELSKRDYSMSYS 108
+ ++ L C SG + WY+ K +S +
Sbjct: 2 SVSEGESVTLSCTYSGSFSSYYIFWYRQKPGKGPELLIYISSNGSQYAGGVKGRFSGTRD 61
Query: 109 DGV--VSMEIIDCKPEDSGEYKCVATNKHGTDE 139
++ I +PEDS Y C + GT +
Sbjct: 62 SSKSSFTLTISSLQPEDSAVYYCAVSLSGGTYK 94
>gnl|CDD|143266 cd05858, Ig3_FGFR-2, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor 2 (FGFR2).
Ig3_FGFR-2-like; domain similar to the third
immunoglobulin (Ig)-like domain of human fibroblast
growth factor receptor 2 (FGFR2). Fibroblast growth
factors (FGFs) participate in morphogenesis,
development, angiogenesis, and wound healing. These
FGF-stimulated processes are mediated by four FGFR
tyrosine kinases (FGRF1-4). FGFRs are comprised of an
extracellular portion consisting of three Ig-like
domains, a transmembrane helix, and a cytoplasmic
portion having protein tyrosine kinase activity. The
highly conserved Ig-like domains 2 and 3, and the linker
region between D2 and D3 define a general binding site
for FGFs. FGFR2 is required for male sex determination.
Length = 90
Score = 27.2 bits (60), Expect = 1.6
Identities = 19/82 (23%), Positives = 33/82 (40%), Gaps = 22/82 (26%)
Query: 73 QTCKLLCCLSGKPPPTVKWYKGNRELSKRDYSMSYSDGVV---------------SMEII 117
T + +C + P ++W K +++ S DG+ ME++
Sbjct: 2 STVEFVCKVYSDAQPHIQWLKHV----EKNGSKYGPDGLPYVTVLKTAGVNTTDKEMEVL 57
Query: 118 DCKP---EDSGEYKCVATNKHG 136
+ ED+GEY C+A N G
Sbjct: 58 YLRNVTFEDAGEYTCLAGNSIG 79
>gnl|CDD|143176 cd04975, Ig4_SCFR_like, Fourth immunoglobulin (Ig)-like domain of
stem cell factor receptor (SCFR) and similar proteins.
Ig4_SCFR_like; fourth immunoglobulin (Ig)-like domain of
stem cell factor receptor (SCFR). In addition to SCFR
this group also includes the fourth Ig domain of
platelet-derived growth factor receptors (PDGFR), alpha
and beta, the fourth Ig domain of macrophage colony
stimulating factor (M-CSF), and the Ig domain of the
receptor tyrosine kinase KIT. SCFR and the PDGFR alpha
and beta have similar organization: an extracellular
component having five Ig-like domains, a transmembrane
segment, and a cytoplasmic portion having protein
tyrosine kinase activity. SCFR and its ligand SCF are
critical for normal hematopoiesis, mast cell
development, melanocytes and gametogenesis. SCF binds to
the second and third Ig-like domains of SCFR, this
fourth Ig-like domain participates in SCFR dimerization,
which follows ligand binding. Deletion of this fourth
SCFR_Ig-like domain abolishes the ligand-induced
dimerization of SCFR and completely inhibits signal
transduction. PDGF is a potent mitogen for connective
tissue cells. PDGF-stimulated processes are mediated by
three different PDGFs (PDGF-A,-B, and C). PDGFR alpha
binds to all three PDGFs, whereas the PDGFR beta, binds
only to PDGF-B. In mice, PDGFR alpha, and PDGFR beta,
are essential for normal development.
Length = 101
Score = 27.3 bits (61), Expect = 1.8
Identities = 14/59 (23%), Positives = 27/59 (45%), Gaps = 6/59 (10%)
Query: 85 PPPTVKWYKGNREL--SKRDYSMSYSDG----VVSMEIIDCKPEDSGEYKCVATNKHGT 137
PPP + W NR L + S ++ V ++++ K ++G Y +A+N +
Sbjct: 32 PPPHINWTYDNRTLTNKLTEIVTSENESEYRYVSELKLVRLKESEAGTYTFLASNSDAS 90
>gnl|CDD|143184 cd04983, IgV_TCR_alpha_like, Immunoglobulin (Ig) variable (V)
domain of T-cell receptor (TCR) alpha chain and similar
proteins. IgV_TCR_alpha: immunoglobulin (Ig) variable
domain of the alpha chain of alpha/beta T-cell antigen
receptors (TCRs). TCRs mediate antigen recognition by T
lymphocytes, and are composed of alpha and beta, or
gamma and delta, polypeptide chains with variable (V)
and constant (C) regions. This group represents the
variable domain of the alpha chain of TCRs and also
includes the variable domain of delta chains of TCRs.
Alpha/beta TCRs recognize antigen as peptide fragments
presented by major histocompatibility complex (MHC)
molecules. The variable domain of TCRs is responsible
for antigen recognition, and is located at the
N-terminus of the receptor. Gamma/delta TCRs recognize
intact protein antigens; they recognize proteins
antigens directly and without antigen processing, and
MHC independently of the bound peptide.
Length = 109
Score = 27.6 bits (62), Expect = 1.8
Identities = 18/87 (20%), Positives = 27/87 (31%), Gaps = 17/87 (19%)
Query: 69 MQVRQTCKLLCCLSGKPPPTVKWYK---------------GNRELSKRDYSMSY--SDGV 111
+Q + L C S + WY+ E K +S + S
Sbjct: 10 VQEGENVTLNCNYSTSTFYYLFWYRQYPGQGPQFLIYISSNGEEKEKGRFSATLDKSRKS 69
Query: 112 VSMEIIDCKPEDSGEYKCVATNKHGTD 138
S+ I + DS Y C + GT
Sbjct: 70 SSLHISAAQLSDSAVYFCALSESGGTG 96
>gnl|CDD|143276 cd05868, Ig4_NrCAM, Fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). Ig4_ NrCAM:
fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). NrCAM belongs to
the L1 subfamily of cell adhesion molecules (CAMs) and
is comprised of an extracellular region having six
IG-like domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. NrCAM
is primarily expressed in the nervous system.
Length = 76
Score = 26.9 bits (59), Expect = 2.1
Identities = 23/74 (31%), Positives = 35/74 (47%), Gaps = 8/74 (10%)
Query: 77 LLCCLSGKPPPTVKWYKGNR--ELSKRDYSMSYSDGVVSMEIIDCKPED--SGEYKCVAT 132
L+C +G P P++ W E++ D S DG II K ++ S Y+C A+
Sbjct: 6 LICRANGNPKPSISWLTNGVPIEIAPTDPSRKV-DGDT---IIFSKVQERSSAVYQCNAS 61
Query: 133 NKHGTDETNCVVIV 146
N++G N V V
Sbjct: 62 NEYGYLLANAFVNV 75
>gnl|CDD|214650 smart00406, IGv, Immunoglobulin V-Type.
Length = 81
Score = 26.6 bits (59), Expect = 2.3
Identities = 12/51 (23%), Positives = 18/51 (35%), Gaps = 10/51 (19%)
Query: 89 VKWYKGNRELSKRDYSMSYSDGV----------VSMEIIDCKPEDSGEYKC 129
++W Y SY VS+ I + + ED+G Y C
Sbjct: 29 LEWLGYIGSNGSSYYQESYKGRFTISKDTSKNDVSLTISNLRVEDTGTYYC 79
>gnl|CDD|143280 cd05872, Ig_Sema4B_like, Immunoglobulin (Ig)-like domain of the
class IV semaphorin Sema4B. Ig_Sema4B_like;
Immunoglobulin (Ig)-like domain of Sema4B_like. Sema4B
is a Class IV semaphorin. Semaphorins are classified
based on structural features additional to the Sema
domain. Sema4B has extracellular Sema and Ig domains, a
transmembrane domain and a short cytoplasmic domain.
Sema4B has been shown to preferentially regulate the
development of the postsynaptic specialization at the
glutamatergic synapses. This cytoplasmic domain includes
a PDZ-binding motif upon which the synaptic localization
of Sem4B is dependent. Sema4B is a ligand of CLCP1,
CLCP1 was identified in an expression profiling
analysis, which compared a highly metastic lung cancer
subline with its low metastic parental line. Sema4B was
shown to promote CLCP1 endocytosis, and their
interaction is a potential target for therapeutic
intervention of metastasis.
Length = 85
Score = 26.2 bits (58), Expect = 3.9
Identities = 12/41 (29%), Positives = 17/41 (41%), Gaps = 3/41 (7%)
Query: 91 WYKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKCVA 131
W L+ SY G + I+ PE SG Y+C +
Sbjct: 29 WLFNGTPLN---AQFSYRVGTDGLLILVTSPEHSGTYRCYS 66
>gnl|CDD|216915 pfam02171, Piwi, Piwi domain. This domain is found in the protein
Piwi and its relatives. The function of this domain is
the dsRNA guided hydrolysis of ssRNA. Determination of
the crystal structure of Argonaute reveals that PIWI is
an RNase H domain, and identifies Argonaute as Slicer,
the enzyme that cleaves mRNA in the RNAi RISC complex.
In addition, Mg+2 dependence and production of 3'-OH and
5' phosphate products are shared characteristics of
RNaseH and RISC. The PIWI domain core has a tertiary
structure belonging to the RNase H family of enzymes.
RNase H fold proteins all have a five-stranded mixed
beta-sheet surrounded by helices. By analogy to RNase H
enzymes which cleave single-stranded RNA guided by the
DNA strand in an RNA/DNA hybrid, the PIWI domain can be
inferred to cleave single-stranded RNA, for example
mRNA, guided by double stranded siRNA.
Length = 296
Score = 27.3 bits (61), Expect = 4.0
Identities = 13/54 (24%), Positives = 28/54 (51%), Gaps = 1/54 (1%)
Query: 25 IPKTIPAYVPEVQQVRRREPLQITFWQETVESAPNFTFLLRPRVMQVRQTCKLL 78
+ + I + + R+++P +I +++ V S F +L V Q+++ CK L
Sbjct: 123 LKEIILESLRSFYKSRKKKPERIIVYRDGV-SEGQFPQVLNYEVNQIKEACKEL 175
>gnl|CDD|143180 cd04979, Ig_Semaphorin_C, Immunoglobulin (Ig)-like domain of
semaphorin. Ig_Semaphorin_C; Immunoglobulin (Ig)-like
domain in semaphorins. Semaphorins are transmembrane
protein that have important roles in a variety of
tissues. Functionally, semaphorins were initially
characterized for their importance in the development of
the nervous system and in axonal guidance. Later they
have been found to be important for the formation and
functioning of the cardiovascular, endocrine,
gastrointestinal, hepatic, immune, musculoskeletal,
renal, reproductive, and respiratory systems.
Semaphorins function through binding to their receptors
and transmembrane semaphorins also serves as receptors
themselves. Although molecular mechanism of semaphorins
is poorly understood, the Ig-like domains may involve in
ligand binding or dimerization.
Length = 89
Score = 26.2 bits (58), Expect = 4.2
Identities = 16/72 (22%), Positives = 26/72 (36%), Gaps = 8/72 (11%)
Query: 77 LLCCLSGKPPPTVKWYKGNRELSKRDYSMSY----SDGVVSMEIIDCKPEDSGEYKCVAT 132
L C +V W L +++ DG++ I P D+G Y C +
Sbjct: 15 FLECSPKSNLASVVWLFQGGPLQRKEEPEERLLVTEDGLL---IRSVSPADAGVYTCQSV 71
Query: 133 NKHGTDETNCVV 144
+HG +T
Sbjct: 72 -EHGFKQTLATY 82
>gnl|CDD|143293 cd05885, Ig2_Necl-4, Second immunoglobulin (Ig)-like domain of
nectin-like molecule-4 (Necl-4, also known as cell
adhesion molecule 4 (CADM4)). Ig2_Necl-4: second
immunoglobulin (Ig)-like domain of nectin-like
molecule-4 (Necl-4, also known as cell adhesion
molecule 4 (CADM4)). Nectin-like molecules have similar
domain structures to those of nectins. At least five
nectin-like molecules have been identified
(Necl-1-Necl-5). These have an extracellular region
containing three Ig-like domains, one transmembrane
region, and one cytoplasmic region. Ig domains are
likely to participate in ligand binding and
recognition. Necl-4 is expressed on Schwann cells, and
plays a key part in initiating peripheral nervous
system (PNS) myelination. In injured peripheral nerve
cells, the mRNA signal for both Necl-4 and Necl-5 was
observed to be elevated. Necl-4 participates in
cell-cell adhesion and is proposed to play a role in
tumor suppression.
Length = 80
Score = 26.1 bits (57), Expect = 4.4
Identities = 11/23 (47%), Positives = 15/23 (65%), Gaps = 2/23 (8%)
Query: 78 LCCLS--GKPPPTVKWYKGNREL 98
L CLS KP T++WY+ +EL
Sbjct: 4 LTCLSPRSKPAATLRWYRDRKEL 26
>gnl|CDD|143252 cd05775, Ig_SLAM-CD84_like_N, N-terminal immunoglobulin (Ig)-like
domain of the signaling lymphocyte activation molecule
(SLAM) family, CD84_like. Ig_SLAM-CD84_like_N: The
N-terminal immunoglobulin (Ig)-like domain of the
signaling lymphocyte activation molecule (SLAM) family,
CD84_like. The SLAM family is a group of immune-cell
specific receptors that can regulate both adaptive and
innate immune responses. Members of this group include
proteins such as CD84, SLAM (CD150), Ly-9 (CD229), NTB-A
(ly-108, SLAM6), 19A (CRACC), and SLAMF9. The genes
coding for the SLAM family are nested on chromosome 1,
in humans at 1q23, and in mice at 1H2. The SLAM family
is a subset of the CD2 family, which also includes CD2
and CD58 located on chromosome 1 at 1p13 in humans. In
mice, CD2 is located on chromosome 3, and there is no
CD58 homolog. The SLAM family proteins are organized as
an extracellular domain with either two or four Ig-like
domains, a single transmembrane segment, and a
cytoplasmic region having Tyr-based motifs. The
extracellular domain is organized as a membrane-distal
Ig variable (IgV) domain that is responsible for ligand
recognition and a membrane-proximal truncated Ig
constant-2 (IgC2) domain.
Length = 97
Score = 26.1 bits (58), Expect = 4.5
Identities = 12/37 (32%), Positives = 17/37 (45%), Gaps = 9/37 (24%)
Query: 92 YKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYK 128
YK S+ DYS+ I + K ED+G Y+
Sbjct: 50 YKERVNFSQNDYSLQ---------ISNLKMEDAGSYR 77
>gnl|CDD|143285 cd05877, Ig_LP_like, Immunoglobulin (Ig)-like domain of human
cartilage link protein (LP). Ig_LP_like: immunoglobulin
(Ig)-like domain similar to that that found in human
cartilage link protein (LP). In cartilage,
chondroitin-keratan sulfate proteoglycan (CSPG),
aggrecan, forms cartilage link protein stabilized
aggregates with hyaluronan (HA). These aggregates
contribute to the tissue's load bearing properties.
Aggregates having other CSPGs substituting for aggrecan
may contribute to the structural integrity of many
different tissues. Members of the vertebrate HPLN
(hyaluronan/HA and proteoglycan binding link) protein
family are physically linked adjacent to CSPG genes.
Length = 106
Score = 25.8 bits (57), Expect = 6.0
Identities = 9/22 (40%), Positives = 12/22 (54%)
Query: 108 SDGVVSMEIIDCKPEDSGEYKC 129
D S+ I D + ED G Y+C
Sbjct: 64 HDLDASLVITDLRLEDYGRYRC 85
>gnl|CDD|227033 COG4689, Adc, Acetoacetate decarboxylase [Secondary metabolites
biosynthesis, transport, and catabolism].
Length = 247
Score = 26.3 bits (58), Expect = 7.4
Identities = 15/35 (42%), Positives = 18/35 (51%)
Query: 15 QDNPRLRTRAIPKTIPAYVPEVQQVRRREPLQITF 49
QD R A+P T PAY P + R RE IT+
Sbjct: 3 QDTVRKTAFAMPLTSPAYPPGPYRFRNREYFIITY 37
>gnl|CDD|143190 cd05713, Ig_MOG_like, Immunoglobulin (Ig)-like domain of myelin
oligodendrocyte glycoprotein (MOG). Ig_MOG_like:
immunoglobulin (Ig)-like domain of myelin
oligodendrocyte glycoprotein (MOG). MOG, a minor
component of the myelin sheath, is an important
CNS-specific autoantigen, linked to the pathogenesis of
multiple sclerosis (MS) and experimental autoimmune
encephalomyelitis (EAE). It is a transmembrane protein
having an extracellular Ig domain. MOG is expressed in
the CNS on the outermost lamellae of the myelin sheath,
and on the surface of oligodendrocytes, and may
participate in the completion, compaction, and/or
maintenance of myelin. This group also includes
butyrophilin (BTN). BTN is the most abundant protein in
bovine milk-fat globule membrane (MFGM).
Length = 100
Score = 25.6 bits (57), Expect = 7.8
Identities = 12/38 (31%), Positives = 19/38 (50%), Gaps = 4/38 (10%)
Query: 92 YKGNRELSKRDYSMSYSDGVVSMEIIDCKPEDSGEYKC 129
Y+G EL K + +G V++ I + + D G Y C
Sbjct: 49 YRGRTELLKDAIA----EGSVALRIHNVRASDEGLYTC 82
>gnl|CDD|165149 PHA02785, PHA02785, IL-beta-binding protein; Provisional.
Length = 326
Score = 26.5 bits (58), Expect = 8.0
Identities = 23/99 (23%), Positives = 44/99 (44%), Gaps = 9/99 (9%)
Query: 56 SAPNFTFLLRPRVMQVRQTCKLLC-----CLSGKPPPTVKWYKGNRELSKRDYSMSYSDG 110
S N + P+++ R T +++C ++ + W G+R L + + G
Sbjct: 120 SESNIDLISYPQIVNERSTGEMVCPNINAFIASNVNADIIW-SGHRRLRNKRLKQR-TPG 177
Query: 111 VVSMEIIDCKPEDSGEYKCVATNKHGTDETNCVVIVESE 149
++++E D + D+G Y CV +G N IV+ E
Sbjct: 178 IITIE--DVRKNDAGYYTCVLKYIYGDKTYNVTRIVKLE 214
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
0.317 0.133 0.402
Gapped
Lambda K H
0.267 0.0637 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 8,391,915
Number of extensions: 731775
Number of successful extensions: 729
Number of sequences better than 10.0: 1
Number of HSP's gapped: 674
Number of HSP's successfully gapped: 103
Length of query: 168
Length of database: 10,937,602
Length adjustment: 90
Effective length of query: 78
Effective length of database: 6,945,742
Effective search space: 541767876
Effective search space used: 541767876
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 55 (25.2 bits)