RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy17207
(123 letters)
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 43.0 bits (102), Expect = 2e-06
Identities = 18/48 (37%), Positives = 25/48 (52%)
Query: 3 LETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
L +++R + G +TL I V D G Y+C ATN G+ A EL
Sbjct: 41 LRSSDRFKVTYEGGTYTLTISNVQPDDEGKYTCVATNSAGEAEASAEL 88
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 39.4 bits (92), Expect = 3e-05
Identities = 17/49 (34%), Positives = 22/49 (44%)
Query: 3 LETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
L + R + GS TL I V D G Y+C ATN G + L+
Sbjct: 36 LAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGTTLT 84
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 39.4 bits (92), Expect = 3e-05
Identities = 17/49 (34%), Positives = 22/49 (44%)
Query: 3 LETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
L + R + GS TL I V D G Y+C ATN G + L+
Sbjct: 36 LAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGTTLT 84
>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 = 37.5 bits (86), Expect = 1e-04
Identities = 15/46 (32%), Positives = 18/46 (39%)
Query: 4 ETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLE 49
T R T TL I V D G Y+C A+N G A +
Sbjct: 29 LTRVRSSRGTSSGSSTLTISNVTLEDSGTYTCVASNSAGTVSASVT 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 = 37.0 bits (86), Expect = 2e-04
Identities = 15/29 (51%), Positives = 19/29 (65%)
Query: 18 HTLMIRKVVASDFGNYSCEATNPMGKHRA 46
+L IR V A D G+Y+CEA N +GK A
Sbjct: 35 KSLKIRNVTAGDEGSYTCEAENMVGKIEA 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 = 36.8 bits (86), Expect = 2e-04
Identities = 15/48 (31%), Positives = 25/48 (52%)
Query: 3 LETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
L+ + R +ET S +L+I+ SD G Y+ NP G+ A + +
Sbjct: 25 LKLSGRVQIETTASSTSLVIKNAERSDSGKYTLTLKNPAGEKSATINV 72
>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 = 36.3 bits (84), Expect = 4e-04
Identities = 16/37 (43%), Positives = 19/37 (51%)
Query: 8 RRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKH 44
R + + G TL IR V SD G Y+CEA N G
Sbjct: 32 RVSITSEGGYGTLTIRDVKESDQGAYTCEAINTRGMV 68
>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 = 33.1 bits (76), Expect = 0.004
Identities = 12/27 (44%), Positives = 14/27 (51%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHR 45
TL I V D G Y C A+N +G R
Sbjct: 37 TLKIDNVSEEDDGEYRCTASNSLGSAR 63
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 32.8 bits (75), Expect = 0.006
Identities = 12/32 (37%), Positives = 14/32 (43%)
Query: 11 METRGSRHTLMIRKVVASDFGNYSCEATNPMG 42
S TL I+ V D G Y+C A N G
Sbjct: 32 NRFVASGSTLTIKSVSLEDSGLYTCVAENSAG 63
>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 = 32.6 bits (74), Expect = 0.010
Identities = 14/36 (38%), Positives = 19/36 (52%)
Query: 16 SRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
S TL I +V D G Y C+A N +G R +L+
Sbjct: 38 SSGTLRISRVALHDQGQYECQAVNIVGSQRTVAQLT 73
>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 = 30.9 bits (70), Expect = 0.038
Identities = 12/25 (48%), Positives = 14/25 (56%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGK 43
+L I V SD G Y+C A N GK
Sbjct: 40 SLEILNVTKSDEGKYTCFAENFFGK 64
>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 = 30.7 bits (70), Expect = 0.061
Identities = 14/40 (35%), Positives = 20/40 (50%), Gaps = 3/40 (7%)
Query: 7 ERRIMETRGSRHTLMIRKVVASDFGNYSCEATNP-MGKHR 45
R +GS+ L+I+ V D GNY+C+ T GK
Sbjct: 43 GDRKRFVKGSK--LLIQNVTEEDAGNYTCKLTFTHNGKQY 80
>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 = 0.072
Identities = 15/44 (34%), Positives = 20/44 (45%), Gaps = 5/44 (11%)
Query: 4 ETTERRIMET----RGSRHTLMIRKVVASDF-GNYSCEATNPMG 42
++ R +ET G TL I SDF +Y+C A N G
Sbjct: 46 GSSGRYTVETDPSPGGVLSTLTISNTQESDFQTSYNCTAWNSFG 89
>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 = 30.6 bits (69), Expect = 0.078
Identities = 13/34 (38%), Positives = 21/34 (61%), Gaps = 2/34 (5%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHRA--YLEL 50
+L ++ V +D G Y CEA+N +G + YLE+
Sbjct: 63 SLTLKDVQLTDAGRYDCEASNRIGGDQQSMYLEV 96
>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 = 29.4 bits (66), Expect = 0.15
Identities = 12/33 (36%), Positives = 18/33 (54%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
TL I D G+++C A+N G+ A +EL
Sbjct: 41 TLDILITTVKDTGSFTCIASNAAGEATATVELH 73
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 29.3 bits (65), Expect = 0.15
Identities = 11/39 (28%), Positives = 16/39 (41%)
Query: 1 MRLETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATN 39
R + S TL + V + D G Y+C A+N
Sbjct: 36 YRNGSISGGSGGLGSSGSTLTLSSVTSEDSGTYTCVASN 74
>gnl|CDD|143204 cd05727, Ig2_Contactin-2-like, Second Ig domain of the neural
cell adhesion molecule contactin-2 and similar
proteins. Ig2_Contactin-2-like: second 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 = 96
Score = 29.4 bits (66), Expect = 0.16
Identities = 17/40 (42%), Positives = 23/40 (57%), Gaps = 4/40 (10%)
Query: 3 LETTERR-IMETRGSRHTLMIRKVVASDFGNYSCEATNPM 41
+ RR + +T G+ L I KV ASD GNYSC ++P
Sbjct: 47 IPEDGRRFVSQTNGN---LYIAKVEASDRGNYSCFVSSPS 83
>gnl|CDD|143195 cd05718, Ig1_PVR_like, First immunoglobulin (Ig) domain of
poliovirus receptor (PVR, also known as CD155) and
similar proteins. Ig1_PVR_like: domain similar to the
first immunoglobulin (Ig) domain of poliovirus receptor
(PVR, also known as CD155). Poliovirus (PV) binds to
its cellular receptor (PVR/CD155) to initiate
infection. CD155 is a membrane-anchored, single-span
glycoprotein; its extracellular region has three
Ig-like domains. There are four different isotypes of
CD155 (referred to as alpha, beta, gamma, and delta),
that result from alternate splicing of the CD155 mRNA,
and have identical extracellular domains. CD155-beta
and - gamma, are secreted, CD155-alpha and delta are
membrane-bound and function as PV receptors. The virus
recognition site is contained in the amino-terminal
domain, D1. Having the virus attachment site on the
receptor distal from the plasma membrane, may be
important for successful initiation of infection of
cells by the virus. CD155 binds in the poliovirus
"canyon" with a footprint similar to that of the
intercellular adhesion molecule-1 receptor on human
rhinoviruses. This group also includes the first
Ig-like domain of nectin-1 (also known as poliovirus
receptor related protein(PVRL)1; CD111), nectin-3 (also
known as PVRL 3), nectin-4 (also known as PVRL4; LNIR
receptor)and DNAX accessory molecule 1 (DNAM-1; CD226).
Length = 98
Score = 29.6 bits (67), Expect = 0.18
Identities = 12/25 (48%), Positives = 14/25 (56%), Gaps = 1/25 (4%)
Query: 19 TLMIRKVVASDFGNYSCE-ATNPMG 42
T+ I + D GNY CE AT P G
Sbjct: 63 TISISNLRLEDEGNYICEFATFPQG 87
>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 = 29.1 bits (65), Expect = 0.19
Identities = 13/33 (39%), Positives = 16/33 (48%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
L IR V +D G Y C A N +G + LS
Sbjct: 37 YLAIRDVGVADQGRYECVARNTIGYASVSMVLS 69
>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 = 29.2 bits (65), Expect = 0.22
Identities = 15/42 (35%), Positives = 23/42 (54%), Gaps = 2/42 (4%)
Query: 11 METRG--SRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
+E +G +L I+ V SD G Y CEA + +G H+ + L
Sbjct: 55 IEVKGQHGESSLHIKDVKLSDSGRYDCEAASRIGGHQKSMYL 96
>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 = 29.2 bits (65), Expect = 0.23
Identities = 15/49 (30%), Positives = 24/49 (48%)
Query: 3 LETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLELS 51
+ +++R + + + T I KV SD GNY+ N GK A L+
Sbjct: 44 IVSSQRHQITSTEYKSTFEISKVQMSDEGNYTVVVENSEGKQEAQFTLT 92
>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 = 28.5 bits (64), Expect = 0.33
Identities = 11/23 (47%), Positives = 14/23 (60%)
Query: 20 LMIRKVVASDFGNYSCEATNPMG 42
L+I + SD G Y C ATN +G
Sbjct: 53 LLIAEARKSDEGTYKCVATNMVG 75
>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 = 28.7 bits (64), Expect = 0.36
Identities = 14/47 (29%), Positives = 23/47 (48%), Gaps = 1/47 (2%)
Query: 5 TTERRI-METRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
TE R+ +E+ + +I D G Y+ TNP+G+ A L +
Sbjct: 38 ETEGRVRVESYKDLSSFVIEGAEREDEGVYTITVTNPVGEDHASLFV 84
>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 = 28.2 bits (63), Expect = 0.45
Identities = 14/39 (35%), Positives = 17/39 (43%), Gaps = 2/39 (5%)
Query: 12 ETRGSRHTLMIRKVVASDFGNYSCEATNPMGK--HRAYL 48
E S L I + D G Y CEA N GK H+ +
Sbjct: 47 EISMSGAVLKIPNIQFEDEGTYECEAENIKGKDTHQGRI 85
>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 = 28.5 bits (63), Expect = 0.46
Identities = 12/42 (28%), Positives = 23/42 (54%)
Query: 2 RLETTERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGK 43
++ +++R +++ G R L I D G Y C+AT+ G+
Sbjct: 40 KIVSSQRVVVQKEGVRSRLTIYNANIEDAGIYRCQATDAKGQ 81
>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 = 27.8 bits (62), Expect = 0.74
Identities = 16/38 (42%), Positives = 17/38 (44%), Gaps = 8/38 (21%)
Query: 7 ERRIMETRGSRHTLMIRKVVAS-----DFGNYSCEATN 39
ERR GS L+I VV S D G Y C A N
Sbjct: 46 ERRQQLPNGS---LLITSVVHSKHNKPDEGFYQCVAQN 80
>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 = 27.0 bits (60), Expect = 0.92
Identities = 10/29 (34%), Positives = 14/29 (48%)
Query: 14 RGSRHTLMIRKVVASDFGNYSCEATNPMG 42
R TL++ V +D Y C A+N G
Sbjct: 37 RVDGGTLILSNVQPNDTAVYQCNASNVHG 65
>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 = 26.9 bits (59), Expect = 1.4
Identities = 14/38 (36%), Positives = 20/38 (52%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHRAYLELSGKPNP 56
TL I V D G +SC A N G+ R ++L+ + P
Sbjct: 48 TLQILPTVREDSGFFSCHAINSYGEDRGIIQLTVQEPP 85
>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 = 26.8 bits (59), Expect = 1.5
Identities = 10/31 (32%), Positives = 14/31 (45%)
Query: 20 LMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
+ I V D Y+C A N G+ A + L
Sbjct: 60 MTILDVDKLDEAEYTCIAENKAGEQEAEIHL 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 = 26.5 bits (58), Expect = 1.5
Identities = 13/33 (39%), Positives = 18/33 (54%)
Query: 18 HTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
H L + +V SD G Y C A N +G +A +L
Sbjct: 37 HNLQVLGLVKSDEGFYQCIAENDVGNVQAGAQL 69
>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 = 26.3 bits (58), Expect = 1.6
Identities = 9/24 (37%), Positives = 12/24 (50%)
Query: 20 LMIRKVVASDFGNYSCEATNPMGK 43
L I K +D G Y+C N +G
Sbjct: 45 LQINKAKLADSGEYTCVVENILGN 68
>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 = 26.8 bits (59), Expect = 1.8
Identities = 13/31 (41%), Positives = 17/31 (54%), Gaps = 2/31 (6%)
Query: 20 LMIRKVVASDFGNYSCEATNPMG--KHRAYL 48
L +R V D G Y+C A N +G H A+L
Sbjct: 57 LYLRNVTFEDAGEYTCLAGNSIGISHHSAWL 87
>gnl|CDD|143217 cd05740, Ig_CEACAM_D4, Fourth immunoglobulin (Ig)-like domain of
carcinoembryonic antigen (CEA) related cell adhesion
molecule (CEACAM). Ig_CEACAM_D4: immunoglobulin
(Ig)-like domain 4 in carcinoembryonic antigen (CEA)
related cell adhesion molecule (CEACAM) protein
subfamily. The CEA family is a group of anchored or
secreted glycoproteins, expressed by epithelial cells,
leukocytes, endothelial cells and placenta. The CEA
family is divided into the CEACAM and
pregnancy-specific glycoprotein (PSG) subfamilies. This
group represents the CEACAM subfamily. CEACAM1 has many
important cellular functions, it is a cell adhesion
molecule, and a signaling molecule that regulates the
growth of tumor cells, it is an angiogenic factor, and
is a receptor for bacterial and viral pathogens,
including mouse hepatitis virus (MHV). In mice, four
isoforms of CEACAM1 generated by alternative splicing
have either two [D1, D4] or four [D1-D4] Ig-like
domains on the cell surface. This family corresponds to
the D4 Ig-like domain.
Length = 91
Score = 26.5 bits (58), Expect = 1.9
Identities = 11/32 (34%), Positives = 15/32 (46%)
Query: 15 GSRHTLMIRKVVASDFGNYSCEATNPMGKHRA 46
TL V SD G+Y CEA+N + +
Sbjct: 52 NDNRTLTFNNVTRSDTGHYQCEASNEVSNMTS 83
>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 = 26.4 bits (58), Expect = 1.9
Identities = 9/24 (37%), Positives = 16/24 (66%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMG 42
+L+I+ V+ D G Y C+ +N +G
Sbjct: 45 SLLIKHVLEEDSGYYLCKVSNDVG 68
>gnl|CDD|236422 PRK09234, fbiC, FO synthase; Reviewed.
Length = 843
Score = 27.7 bits (62), Expect = 1.9
Identities = 10/18 (55%), Positives = 12/18 (66%)
Query: 1 MRLETTERRIMETRGSRH 18
M LETT RR+ E +G H
Sbjct: 192 MMLETTSRRLFEEKGGPH 209
>gnl|CDD|220703 pfam10342, GPI-anchored, Ser-Thr-rich
glycosyl-phosphatidyl-inositol-anchored membrane family.
Some members of this family appear to be serine-
threonine-rich membrane-anchored proteins, anchored by
glycosylphosphatidylinositol. In A. fumigatus these
proteins play a role in fungal cell wall organisation.
In Lentinula edodes this family is involved in fruiting
body formation, and may have a more general role in
signalling in other organisms as it interacts with MAPK.
The family is also found in archaea and bacteria.
Length = 94
Score = 26.6 bits (59), Expect = 2.0
Identities = 7/40 (17%), Positives = 10/40 (25%), Gaps = 2/40 (5%)
Query: 70 SYNITWMVSSYTPLEEFKIKYRKIPGNEPSPMSNQLTGTN 109
+Y ITW P I G + +
Sbjct: 16 TYTITWTDVGTDPPSTVTIYLSN--GGGTTLPDVTTIASV 53
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 26.2 bits (58), Expect = 2.1
Identities = 11/31 (35%), Positives = 15/31 (48%), Gaps = 1/31 (3%)
Query: 22 IRKVVASDFGNYSCEATNP-MGKHRAYLELS 51
V A D G Y+C A+N GK + L+
Sbjct: 49 TPNVSAEDSGTYTCVASNGGGGKTSNPVTLT 79
>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 = 26.4 bits (58), Expect = 2.3
Identities = 18/45 (40%), Positives = 20/45 (44%), Gaps = 3/45 (6%)
Query: 6 TERRIMETRGSRHTLMIRKVVASDFGNYSCEATNPMGKHRAYLEL 50
+E RI G L I K+ SD G Y C A N G A EL
Sbjct: 42 SENRIEVEAG---DLRITKLSLSDSGMYQCVAENKHGTIYASAEL 83
>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 = 26.1 bits (57), Expect = 2.7
Identities = 15/39 (38%), Positives = 18/39 (46%), Gaps = 2/39 (5%)
Query: 12 ETRGSRHTLMIRKVVASDFGNYSCEATNPMG--KHRAYL 48
E S L I + D G Y CEA N G KH+A +
Sbjct: 47 EISMSGAVLKIFNIQPEDEGTYECEAENIKGKDKHQARV 85
>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 = 26.0 bits (57), Expect = 2.8
Identities = 12/29 (41%), Positives = 16/29 (55%)
Query: 14 RGSRHTLMIRKVVASDFGNYSCEATNPMG 42
R +L++ VV SD GNY+C N G
Sbjct: 47 RNQHWSLIMESVVPSDKGNYTCVVENEYG 75
>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 = 26.0 bits (58), Expect = 2.9
Identities = 9/17 (52%), Positives = 10/17 (58%)
Query: 19 TLMIRKVVASDFGNYSC 35
L I V ASD G Y+C
Sbjct: 66 ALRIHNVRASDEGLYTC 82
>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 = 25.7 bits (56), Expect = 3.9
Identities = 13/34 (38%), Positives = 17/34 (50%), Gaps = 6/34 (17%)
Query: 15 GSRHTLMIRKVV------ASDFGNYSCEATNPMG 42
SR+TL+ +V A D G+Y C A N G
Sbjct: 50 ESRYTLVAGNLVINNPQKARDAGSYQCLAINRCG 83
>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 = 26.0 bits (57), Expect = 4.1
Identities = 9/28 (32%), Positives = 14/28 (50%)
Query: 13 TRGSRHTLMIRKVVASDFGNYSCEATNP 40
+ +L I + SD G Y+C +NP
Sbjct: 74 GSKNDFSLTISNLRLSDSGTYTCAVSNP 101
>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 = 25.4 bits (55), Expect = 4.6
Identities = 14/34 (41%), Positives = 15/34 (44%), Gaps = 2/34 (5%)
Query: 9 RIMETRGSRHTLMIRKVVASDFGNYSCEATNPMG 42
RI + R L I SD G Y C ATN G
Sbjct: 31 RIKQLRSG--ALQIENSEESDQGKYECVATNSAG 62
>gnl|CDD|143270 cd05862, Ig1_VEGFR, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
IG1_VEGFR: first immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
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). VEGF_A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but
binds other members of the VEGF family (VEGF-C and -D).
VEGFRs bind VEGFs with high affinity with 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 = 86
Score = 25.2 bits (55), Expect = 4.9
Identities = 10/21 (47%), Positives = 13/21 (61%)
Query: 19 TLMIRKVVASDFGNYSCEATN 39
TL I V SD G Y+C A++
Sbjct: 51 TLTIENVTLSDLGRYTCTASS 71
>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 = 24.9 bits (54), Expect = 5.0
Identities = 12/27 (44%), Positives = 14/27 (51%)
Query: 19 TLMIRKVVASDFGNYSCEATNPMGKHR 45
TL + V+ SD G Y C A N G R
Sbjct: 37 TLQLDNVLESDDGEYVCTAENSEGSAR 63
>gnl|CDD|143279 cd05871, Ig_Semaphorin_classIII, Immunoglobulin (Ig)-like domain
of class III semaphorin. Ig_Semaphorin_class III;
Immunoglobulin (Ig)-like domain of class III
semaphorins. Semaphorins are classified into various
classes on the basis of structural features additional
to the Sema domain. Class III semaphorins are a
vertebrate class having a Sema domain, an Ig domain, a
short basic domain, and are secreted. They have been
shown to be axonal guidance cues and have a part in the
regulation of the cardiovascular, immune and
respiratory systems. Sema3A, the prototype member of
this class III subfamily, induces growth cone collapse
and is an inhibitor of axonal sprouting. In perinatal
rat cortex as a chemoattractant, it functions to
direct, for pyramidal neurons, the orientated extension
of apical dendrites. It may play a role, prior to the
development of apical dendrites, in signaling the
radial migration of newborn cortical neurons towards
the upper layers. Sema3A selectively inhibits vascular
endothelial growth factor receptor (VEGF)-induced
angiogenesis and induces microvascular permeability.
This group also includes Sema3B, -C, -D, -E, -G.
Length = 91
Score = 25.4 bits (56), Expect = 5.3
Identities = 14/34 (41%), Positives = 20/34 (58%), Gaps = 5/34 (14%)
Query: 6 TERRIMET-RGSRHTLMIRKVVASDFGNYSCEAT 38
TE R++ T RG L++R + SD G Y+C A
Sbjct: 44 TEERLIHTERG----LLLRSLQRSDAGVYTCTAV 73
>gnl|CDD|143175 cd04974, Ig3_FGFR, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig3_FGFR:
third 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 FGFs.
Length = 90
Score = 25.5 bits (56), Expect = 5.4
Identities = 15/42 (35%), Positives = 19/42 (45%), Gaps = 2/42 (4%)
Query: 10 IMETRGSRHTLMIRKVVASDFGNYSCEATNPMG--KHRAYLE 49
I T L +R V D G Y+C A N +G H A+L
Sbjct: 47 INTTDNESEVLYLRNVSFDDAGEYTCLAGNSIGPSHHSAWLT 88
>gnl|CDD|143296 cd05888, Ig1_Nectin-4_like, Frst immunoglobulin (Ig) domain of
nectin-4 (also known as poliovirus receptor related
protein 4, or as LNIR receptor) and similar proteins.
Ig1_Nectin-4_like: domain similar to the first
immunoglobulin (Ig) domain of nectin-4 (also known as
poliovirus receptor related protein 4, or as LNIR
receptor). Nectin-4 belongs to the nectin family, which
is comprised of four transmembrane glycoproteins
(nectins-1 through -4). Nectins are synaptic cell
adhesion molecules (CAMs) which participate in adhesion
and signaling at various intracellular junctions.
Nectins form homophilic cis-dimers, followed by
homophilic and heterophilic trans-dimers involved in
cell-cell adhesion. For example nectin-4
trans-interacts with nectin-1. Nectin-4 has also been
shown to interact with the actin filament-binding
protein, afadin. Unlike the other nectins, which are
widely expressed in adult tissues, nectin-4 is mainly
expressed during embryogenesis, and is not detected in
normal adult tissue or in serum. Nectin-4 is
re-expressed in breast carcinoma, and patients having
metastatic breast cancer have a circulating form of
nectin-4 formed from the ectodomain.
Length = 100
Score = 25.2 bits (55), Expect = 7.1
Identities = 13/32 (40%), Positives = 16/32 (50%), Gaps = 1/32 (3%)
Query: 20 LMIRKVVASDFGNYSCE-ATNPMGKHRAYLEL 50
L++R V +D G Y C T P G A L L
Sbjct: 66 LILRNAVQADEGKYKCRVITFPAGNFEAELVL 97
>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 = 24.5 bits (53), Expect = 7.1
Identities = 11/26 (42%), Positives = 14/26 (53%)
Query: 18 HTLMIRKVVASDFGNYSCEATNPMGK 43
L I +V D GNY+ TNP+ K
Sbjct: 34 VHLTIYEVTEKDAGNYTVVLTNPITK 59
>gnl|CDD|181933 PRK09532, PRK09532, DNA polymerase III subunit alpha; Reviewed.
Length = 874
Score = 25.9 bits (57), Expect = 7.9
Identities = 10/19 (52%), Positives = 11/19 (57%)
Query: 76 MVSSYTPLEEFKIKYRKIP 94
M+S TP EFK KY P
Sbjct: 482 MISDETPEPEFKEKYDNDP 500
>gnl|CDD|219744 pfam08204, V-set_CD47, CD47 immunoglobulin-like domain. This
family represents the CD47 leukocyte antigen V-set like
Ig domain.
Length = 93
Score = 24.7 bits (54), Expect = 8.5
Identities = 9/26 (34%), Positives = 11/26 (42%), Gaps = 2/26 (7%)
Query: 30 FGNYSCEATNPM--GKHRAYLELSGK 53
GNY+CE T GK L+
Sbjct: 67 SGNYTCEVTELFNEGKTTIELKYVVS 92
>gnl|CDD|143295 cd05887, Ig1_Nectin-3_like, First immunoglobulin (Ig) domain of
nectin-3 (also known as poliovirus receptor related
protein 3) and similar proteins. Ig1_Nectin-3_like:
domain similar to the first immunoglobulin (Ig) domain
of nectin-3 (also known as poliovirus receptor related
protein 3). Nectin-3 belongs to the nectin family
comprised of four transmembrane glycoproteins
(nectins-1 through -4). Nectins are synaptic cell
adhesion molecules (CAMs) which participate in adhesion
and signaling at various intracellular junctions.
Nectins form homophilic cis-dimers, followed by
homophilic and heterophilic trans-dimers involved in
cell-cell adhesion. For example, during spermatid
development, the nectin-3,-2 trans-interaction is
required for the formation of Sertoli cell-spermatid
junctions in testis, and during morphogenesis of the
ciliary body, the nectin-3,-1 trans-interaction is
important for apex-apex adhesion between the pigment
and non-pigment layers of the ciliary epithelia.
Nectins also heterophilically trans-interact with other
CAMs such as nectin-like molecules (Necls); nectin-3
for example, trans-interacts with Necl-5, regulating
cell movement and proliferation. Other proteins with
which nectin-3 interacts include the actin
filament-binding protein, afadin, integrin alpha-beta3,
Par-3, and PDGF receptor; its interaction with PDGF
receptor regulates the latter's signaling for
anti-apoptosis.
Length = 96
Score = 24.9 bits (54), Expect = 9.2
Identities = 12/29 (41%), Positives = 18/29 (62%), Gaps = 1/29 (3%)
Query: 19 TLMIRKVVASDFGNYSCEA-TNPMGKHRA 46
T+M+ V SD G Y C+A T P+G ++
Sbjct: 61 TIMLENVGFSDIGVYICKAVTFPLGNTQS 89
>gnl|CDD|143203 cd05726, Ig4_Robo, Third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig4_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 = 90
Score = 24.5 bits (53), Expect = 9.3
Identities = 14/35 (40%), Positives = 18/35 (51%), Gaps = 2/35 (5%)
Query: 20 LMIRKVVASDFGNYSCEATNPMGK--HRAYLELSG 52
L I V SD G Y C+ N G +AYLE++
Sbjct: 49 LTITNVQRSDVGYYICQTLNVAGSILTKAYLEVTD 83
>gnl|CDD|143219 cd05742, Ig1_VEGFR_like, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor (R)
and similar proteins. Ig1_VEGFR_like: first
immunoglobulin (Ig)-like domain of vascular endothelial
growth factor (VEGF) receptor(R) related proteins. 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). VEGF-A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but
binds other members of the VEGF family (VEGF-C and -D).
VEGFRs bind VEGFs with high affinity with 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. This group
also contains alpha-type platelet-derived growth factor
receptor precursor (PDGFR)-alpha (CD140a), and
PDGFR-beta (CD140b). PDGFRs alpha and beta have an
extracellular component with five Ig-like domains, a
transmembrane segment, and a cytoplasmic portion that
has protein tyrosine kinase activity.
Length = 84
Score = 24.7 bits (54), Expect = 9.7
Identities = 8/30 (26%), Positives = 12/30 (40%)
Query: 17 RHTLMIRKVVASDFGNYSCEATNPMGKHRA 46
TL I D G Y+C A++ +
Sbjct: 48 SSTLTIPNATLKDSGTYTCAASSGTMDQKE 77
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
0.316 0.131 0.387
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: 6,231,678
Number of extensions: 528611
Number of successful extensions: 463
Number of sequences better than 10.0: 1
Number of HSP's gapped: 463
Number of HSP's successfully gapped: 63
Length of query: 123
Length of database: 10,937,602
Length adjustment: 85
Effective length of query: 38
Effective length of database: 7,167,512
Effective search space: 272365456
Effective search space used: 272365456
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.6 bits)
S2: 53 (24.4 bits)