RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy15390
(142 letters)
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 59.2 bits (144), Expect = 1e-12
Identities = 23/74 (31%), Positives = 33/74 (44%), Gaps = 2/74 (2%)
Query: 15 ESTPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHM-HYGEQLNITK 73
P V V+E + TC G P P + W + D QP+ + R KV L I+
Sbjct: 4 TQKPKDVEVQEGESARFTCTVTGDPDPTVSWFK-DGQPLRSSDRFKVTYEGGTYTLTISN 62
Query: 74 ISRTEMGAYLCIAT 87
+ + G Y C+AT
Sbjct: 63 VQPDDEGKYTCVAT 76
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 57.8 bits (140), Expect = 3e-12
Identities = 22/60 (36%), Positives = 32/60 (53%), Gaps = 4/60 (6%)
Query: 28 NITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
++TLTC AEG P P I W + D +P+ + R + G L I +S + G Y C+A
Sbjct: 4 SVTLTCPAEGNPVPNITWLK-DGKPLPESNR---FVASGSTLTIKSVSLEDSGLYTCVAE 59
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 56.4 bits (136), Expect = 2e-11
Identities = 23/71 (32%), Positives = 39/71 (54%), Gaps = 1/71 (1%)
Query: 18 PSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQ-LNITKISR 76
P SV V+E ++TL+C+A G P PE+ W ++ + ++ + R V L I+ ++
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTP 60
Query: 77 TEMGAYLCIAT 87
+ G Y C AT
Sbjct: 61 EDSGTYTCAAT 71
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 56.4 bits (136), Expect = 2e-11
Identities = 23/71 (32%), Positives = 39/71 (54%), Gaps = 1/71 (1%)
Query: 18 PSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQ-LNITKISR 76
P SV V+E ++TL+C+A G P PE+ W ++ + ++ + R V L I+ ++
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTP 60
Query: 77 TEMGAYLCIAT 87
+ G Y C AT
Sbjct: 61 EDSGTYTCAAT 71
>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 = 51.9 bits (124), Expect = 1e-09
Identities = 24/79 (30%), Positives = 39/79 (49%), Gaps = 2/79 (2%)
Query: 8 PPNILDTESTPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGE 67
PP I +S ++ A ++TL C A+GFP P + W + D +PI + K G
Sbjct: 1 PPTIRARQSEVNATA-NLGQSVTLACDADGFPEPTMTWTK-DGEPIESGEEKYSFNEDGS 58
Query: 68 QLNITKISRTEMGAYLCIA 86
++ I + + + Y CIA
Sbjct: 59 EMTILDVDKLDEAEYTCIA 77
>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 = 47.1 bits (112), Expect = 7e-08
Identities = 27/68 (39%), Positives = 34/68 (50%), Gaps = 6/68 (8%)
Query: 29 ITLTCKAEGFPAPEIKWRRE----DNQPISINKRKKVHMHYGEQ-LNITKISRTEMGAYL 83
ITLTC+AEG P PEI WRR S++ R V H L + + T+ G Y
Sbjct: 19 ITLTCEAEGDPIPEITWRRATRNFSEGDKSLDGRIVVRGHARVSSLTLKDVQLTDAGRYD 78
Query: 84 CIA-TKIG 90
C A +IG
Sbjct: 79 CEASNRIG 86
>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 = 45.7 bits (108), Expect = 2e-07
Identities = 21/58 (36%), Positives = 33/58 (56%), Gaps = 3/58 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+ L C AEG P PE+ W R D P+S N+ KK ++ + L + + ++ G Y+C A
Sbjct: 1 LVLECIAEGLPTPEVHWDRIDG-PLSPNRTKK--LNNNKTLQLDNVLESDDGEYVCTA 55
>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 = 44.7 bits (106), Expect = 3e-07
Identities = 18/58 (31%), Positives = 28/58 (48%), Gaps = 3/58 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+ L C AEG P PEI W + + ++ K ++ + L I +S + G Y C A
Sbjct: 1 LLLECIAEGLPTPEISWIKI-GGELPADRTKF--ENFNKTLKIDNVSEEDDGEYRCTA 55
>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 = 44.7 bits (106), Expect = 3e-07
Identities = 15/59 (25%), Positives = 26/59 (44%), Gaps = 6/59 (10%)
Query: 29 ITLTCKAEGFPAPEIKWRRED-NQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+ C+ G P P + WR+ED P + + + L I ++ + G+Y C A
Sbjct: 1 VEFQCEVGGDPVPTVLWRKEDGELPKG-----RAEILDDKSLKIRNVTAGDEGSYTCEA 54
>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 = 44.4 bits (104), Expect = 5e-07
Identities = 19/64 (29%), Positives = 32/64 (50%), Gaps = 6/64 (9%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGE-----QLNITKISRTEMGAYL 83
+TLTC A G P P I W + + +P+ + +V G L I+ ++ + G Y
Sbjct: 1 VTLTCLASGPPPPTITWLK-NGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTYT 59
Query: 84 CIAT 87
C+A+
Sbjct: 60 CVAS 63
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 42.4 bits (100), Expect = 2e-06
Identities = 22/71 (30%), Positives = 32/71 (45%), Gaps = 10/71 (14%)
Query: 17 TPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISR 76
TPS V E ++TLTC A G P P W + D P+S + + +S
Sbjct: 5 TPSPTVVFEGEDVTLTCSAPGNPPPNYTWYK-DGVPLS-SSQNGFF--------TPNVSA 54
Query: 77 TEMGAYLCIAT 87
+ G Y C+A+
Sbjct: 55 EDSGTYTCVAS 65
>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 = 3e-06
Identities = 23/62 (37%), Positives = 27/62 (43%), Gaps = 4/62 (6%)
Query: 28 NITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
N+TL C A G P P+IKWR+ D S G L I I + G Y C A
Sbjct: 18 NVTLECFALGNPVPQIKWRKVDGSMPS----SAEISMSGAVLKIPNIQFEDEGTYECEAE 73
Query: 88 KI 89
I
Sbjct: 74 NI 75
>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 = 41.3 bits (97), Expect = 6e-06
Identities = 22/58 (37%), Positives = 31/58 (53%), Gaps = 2/58 (3%)
Query: 30 TLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
TL CKA G P P I W D + IS + R V+ + + IT + T G++ CIA+
Sbjct: 5 TLRCKARGDPEPAIHWISPDGKLISNSSRTLVYDNGTLDILITTVKDT--GSFTCIAS 60
>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 = 41.9 bits (98), Expect = 7e-06
Identities = 20/69 (28%), Positives = 31/69 (44%), Gaps = 9/69 (13%)
Query: 28 NITLTCKAEGFPAPEIKWRRE-------DNQPISINKRKKVHMHYGEQLNITKISRTEMG 80
+T C+A G P P I W++E QP + R V L IT + R+++G
Sbjct: 3 TVTFQCEATGNPQPAIFWQKEGSQNLLFSYQPPQSSSRFSVSQT--GDLTITNVQRSDVG 60
Query: 81 AYLCIATKI 89
Y+C +
Sbjct: 61 YYICQTLNV 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 = 40.3 bits (94), Expect = 2e-05
Identities = 27/74 (36%), Positives = 39/74 (52%), Gaps = 8/74 (10%)
Query: 25 EEFNITLTCKAEGFPAPEIKWRREDNQPI------SINKRKKVHMHYGEQ-LNITKISRT 77
E TL+CKAEG P PEI W+R + S + R +V +GE L+I + +
Sbjct: 15 ENGAATLSCKAEGEPIPEITWKRASDGHTFSEGDKSPDGRIEVKGQHGESSLHIKDVKLS 74
Query: 78 EMGAYLC-IATKIG 90
+ G Y C A++IG
Sbjct: 75 DSGRYDCEAASRIG 88
>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 = 40.2 bits (94), Expect = 3e-05
Identities = 20/50 (40%), Positives = 29/50 (58%), Gaps = 4/50 (8%)
Query: 8 PPNILDTESTPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINK 57
PP I++ PS + V + TL CKAEG P P I+W + + QP+ +K
Sbjct: 1 PPRIVEH---PSDLIVSKGDPATLNCKAEGRPTPTIQWLK-NGQPLETDK 46
>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 = 38.7 bits (90), Expect = 7e-05
Identities = 17/61 (27%), Positives = 28/61 (45%)
Query: 30 TLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIATKI 89
+L C AEG P P + W + ++ + G +L+I+ + + GAY CIA
Sbjct: 2 SLRCHAEGIPLPRLTWLKNGMDITPKLSKQLTLIANGSELHISNVRYEDTGAYTCIAKNE 61
Query: 90 G 90
Sbjct: 62 A 62
>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 = 38.7 bits (90), Expect = 7e-05
Identities = 19/54 (35%), Positives = 31/54 (57%), Gaps = 4/54 (7%)
Query: 33 CKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
CKA G P P +W + + QP + ++ + G+ L ITK+S ++ G Y C+A
Sbjct: 21 CKASGNPRPAYRWLK-NGQP--LASENRIEVEAGD-LRITKLSLSDSGMYQCVA 70
>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 = 38.5 bits (90), Expect = 1e-04
Identities = 21/71 (29%), Positives = 34/71 (47%), Gaps = 3/71 (4%)
Query: 18 PSSVAVREEFNITLTCKA-EGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISR 76
PS V L C G P P + WR+ D QP+++ ++V + L I + +
Sbjct: 3 PSDTQVAVGEMAVLECSPPRGHPEPTVSWRK-DGQPLNL-DNERVRIVDDGNLLIAEARK 60
Query: 77 TEMGAYLCIAT 87
++ G Y C+AT
Sbjct: 61 SDEGTYKCVAT 71
>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 = 38.5 bits (89), Expect = 1e-04
Identities = 23/78 (29%), Positives = 39/78 (50%), Gaps = 5/78 (6%)
Query: 6 SVPPNILDTESTPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKV-HMH 64
++P IL + P S+ V E + +C +G PAP + W RE Q I ++R ++
Sbjct: 1 TLPATIL---TKPRSLTVSEGESARFSCDVDGEPAPTVTWMRE-GQIIVSSQRHQITSTE 56
Query: 65 YGEQLNITKISRTEMGAY 82
Y I+K+ ++ G Y
Sbjct: 57 YKSTFEISKVQMSDEGNY 74
>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 = 37.1 bits (86), Expect = 2e-04
Identities = 13/60 (21%), Positives = 23/60 (38%), Gaps = 1/60 (1%)
Query: 28 NITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYG-EQLNITKISRTEMGAYLCIA 86
++TLTC G P ++ W +E L I+ ++ + G Y C+
Sbjct: 3 SVTLTCSVSGPPQVDVTWFKEGKGLEESTTVGTDENRVSSITLTISNVTPEDSGTYTCVV 62
>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 = 37.7 bits (87), Expect = 2e-04
Identities = 24/71 (33%), Positives = 34/71 (47%), Gaps = 5/71 (7%)
Query: 22 AVREEFNITLTCKAEGFPAPEIKWRRE----DNQPISINKRKKVHMHYG-EQLNITKISR 76
A+ E ITLTC+A G P P I WR ++ +++ V H L + I
Sbjct: 13 AMELEEQITLTCEASGDPIPSITWRTSTRNISSEEKTLDGHIVVRSHARVSSLTLKYIQY 72
Query: 77 TEMGAYLCIAT 87
T+ G YLC A+
Sbjct: 73 TDAGEYLCTAS 83
>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 = 36.8 bits (85), Expect = 3e-04
Identities = 15/57 (26%), Positives = 26/57 (45%), Gaps = 1/57 (1%)
Query: 31 LTCKAEGFPAPEIKWRREDNQPISINKRKKVH-MHYGEQLNITKISRTEMGAYLCIA 86
L C A G P P+I W+++ + +++H M + I + + G Y C A
Sbjct: 3 LECAATGHPTPQIAWQKDGGTDFPAARERRMHVMPEDDVFFIVDVKIEDTGVYSCTA 59
>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 = 36.6 bits (84), Expect = 4e-04
Identities = 18/58 (31%), Positives = 26/58 (44%), Gaps = 1/58 (1%)
Query: 30 TLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
T+ C A G P PEI W + D P+ ++ L I ++ G Y C+AT
Sbjct: 2 TMLCAASGNPDPEITWFK-DFLPVDTTSNGRIKQLRSGALQIENSEESDQGKYECVAT 58
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 36.6 bits (84), Expect = 4e-04
Identities = 20/73 (27%), Positives = 31/73 (42%), Gaps = 5/73 (6%)
Query: 16 STPSSVAVREEFNITLTCKAEGFP-APEIKWRREDNQPISINKRKKVHMHYGEQLNITKI 74
+ S +V +TLTC AEG P P I W R + G L ++ +
Sbjct: 5 TVSPSPSVTSGGGVTLTCSAEGGPPPPTISWYRNGSISGGSGGLG----SSGSTLTLSSV 60
Query: 75 SRTEMGAYLCIAT 87
+ + G Y C+A+
Sbjct: 61 TSEDSGTYTCVAS 73
>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 = 36.7 bits (85), Expect = 5e-04
Identities = 21/77 (27%), Positives = 36/77 (46%), Gaps = 6/77 (7%)
Query: 16 STPSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNIT--- 72
S PS + + L C AEG P P+I+W++ D +++ ++ L IT
Sbjct: 4 SEPSDIVAVRGGPVVLNCSAEGEPPPKIEWKK-DGVLLNLVSDERRQQLPNGSLLITSVV 62
Query: 73 --KISRTEMGAYLCIAT 87
K ++ + G Y C+A
Sbjct: 63 HSKHNKPDEGFYQCVAQ 79
>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 = 36.1 bits (83), Expect = 5e-04
Identities = 19/57 (33%), Positives = 34/57 (59%), Gaps = 3/57 (5%)
Query: 33 CKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIATKI 89
C+A+G+P P I W + +Q +S+++R V + G L I++++ + G Y C A I
Sbjct: 9 CEAQGYPQPVIAWTKGGSQ-LSVDRRHLV-LSSG-TLRISRVALHDQGQYECQAVNI 62
>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 = 35.5 bits (82), Expect = 0.001
Identities = 19/66 (28%), Positives = 30/66 (45%), Gaps = 6/66 (9%)
Query: 30 TLTCKAEGFPAPEIKWRREDN--QPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
L C+AEG P P I WR + + + R++V G L ++ + + Y C A+
Sbjct: 5 RLDCEAEGIPQPTITWRLNGVPIEELPPDPRRRVD---GGTLILSNVQPNDTAVYQCNAS 61
Query: 88 -KIGPL 92
G L
Sbjct: 62 NVHGYL 67
>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 = 35.6 bits (82), Expect = 0.001
Identities = 11/28 (39%), Positives = 17/28 (60%)
Query: 18 PSSVAVREEFNITLTCKAEGFPAPEIKW 45
P++ V E T+ C AEG P P+++W
Sbjct: 7 PNATVVYEGGTATIRCTAEGSPLPKVEW 34
>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 = 34.8 bits (80), Expect = 0.003
Identities = 19/67 (28%), Positives = 33/67 (49%), Gaps = 3/67 (4%)
Query: 18 PSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNIT--KIS 75
P V + E + LTC G P PE+ W + D Q ++++ V + G+ ++T +S
Sbjct: 8 PDVVTIMEGKTLNLTCTVFGDPDPEVSWLKND-QALALSDHYNVKVEQGKYASLTIKGVS 66
Query: 76 RTEMGAY 82
+ G Y
Sbjct: 67 SEDSGKY 73
>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 = 33.7 bits (77), Expect = 0.004
Identities = 15/58 (25%), Positives = 27/58 (46%), Gaps = 3/58 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+ + C A+G P P I W ++ + + + K H+ L I + + G Y C+A
Sbjct: 1 VQIPCSAQGDPEPTITWNKDG---VQVTESGKFHISPEGYLAIRDVGVADQGRYECVA 55
>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 = 33.6 bits (77), Expect = 0.006
Identities = 12/61 (19%), Positives = 25/61 (40%), Gaps = 3/61 (4%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIATK 88
+ + CK + P P I W + + ++ + L I +++++ G Y C A
Sbjct: 4 VIIECKPKAAPKPTISWSKGTE---LLTNSSRICIWPDGSLEILNVTKSDEGKYTCFAEN 60
Query: 89 I 89
Sbjct: 61 F 61
Score = 24.7 bits (54), Expect = 9.7
Identities = 7/21 (33%), Positives = 12/21 (57%)
Query: 108 LNITKISRTEMGAYLCIATNN 128
L I +++++ G Y C A N
Sbjct: 41 LEILNVTKSDEGKYTCFAENF 61
>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 = 32.7 bits (74), Expect = 0.013
Identities = 22/62 (35%), Positives = 30/62 (48%), Gaps = 4/62 (6%)
Query: 28 NITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
N+TL C A G P P I+WR+ +P+ ++ M G L I I + G Y C A
Sbjct: 18 NVTLECFALGNPVPVIRWRKI-LEPMPAT--AEISMS-GAVLKIFNIQPEDEGTYECEAE 73
Query: 88 KI 89
I
Sbjct: 74 NI 75
>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 = 32.2 bits (73), Expect = 0.013
Identities = 17/59 (28%), Positives = 28/59 (47%), Gaps = 3/59 (5%)
Query: 28 NITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+I C+ G P P +KW + + I + K V H L + + +++ G Y CIA
Sbjct: 1 DIVFECEVTGKPTPTVKWVKNGDMVIPSDYFKIVKEH---NLQVLGLVKSDEGFYQCIA 56
>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 = 32.4 bits (74), Expect = 0.016
Identities = 17/65 (26%), Positives = 26/65 (40%), Gaps = 8/65 (12%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYG------EQLNITKISRTEMGAY 82
I + C+A+G P P W R + K +V M + +N + E G Y
Sbjct: 1 IVIKCEAKGNPPPTFSWTR-NGTHFDPEKDPRVTMKPDSGTLVIDNMNGGRAEDYE-GEY 58
Query: 83 LCIAT 87
C A+
Sbjct: 59 QCYAS 63
>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 = 32.6 bits (74), Expect = 0.016
Identities = 20/67 (29%), Positives = 32/67 (47%), Gaps = 3/67 (4%)
Query: 18 PSSVAVREEFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGE--QLNITKIS 75
P V + E + LTC G P PE+ W + D Q I +++ V + G+ L I ++
Sbjct: 8 PDVVTIMEGKTLNLTCTVFGNPDPEVIWFKND-QDIELSEHYSVKLEQGKYASLTIKGVT 66
Query: 76 RTEMGAY 82
+ G Y
Sbjct: 67 SEDSGKY 73
>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 = 32.1 bits (73), Expect = 0.019
Identities = 17/62 (27%), Positives = 30/62 (48%), Gaps = 12/62 (19%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISI-----NKRKKVHMHYGEQLNITKISRTEMGAYL 83
+ L C A G P P+I W + DN+P++ +++KK L++ + + G Y
Sbjct: 12 VRLKCVASGNPRPDITWLK-DNKPLTPTEIGESRKKKW------TLSLKNLKPEDSGKYT 64
Query: 84 CI 85
C
Sbjct: 65 CH 66
>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 = 31.3 bits (71), Expect = 0.034
Identities = 18/60 (30%), Positives = 24/60 (40%), Gaps = 4/60 (6%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQ--LNITKISRTEMGAYLCIA 86
+ TC A G P P I WR N + + G L I + ++ GAY C A
Sbjct: 4 VEFTCVATGVPTPIINWRL--NWGHVPDSARVSITSEGGYGTLTIRDVKESDQGAYTCEA 61
>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 = 31.2 bits (71), Expect = 0.037
Identities = 18/70 (25%), Positives = 30/70 (42%), Gaps = 5/70 (7%)
Query: 31 LTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIATKIG 90
L K + +P PEI+W + + + IS R K H L I ++ + G Y +
Sbjct: 3 LPVKVKAYPPPEIQWYK-NGKLISEKNRTKKSGH---SLTIKDVTEEDAGNYT-VVLTNK 57
Query: 91 PLKIFWEIIF 100
K+ + F
Sbjct: 58 QAKLEKRLTF 67
>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 = 30.7 bits (69), Expect = 0.057
Identities = 17/54 (31%), Positives = 26/54 (48%), Gaps = 5/54 (9%)
Query: 34 KAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
K G+P PE+KW + Q I +N K G L I +++ + G Y + T
Sbjct: 6 KYYGYPPPEVKWYKNG-QLIVLNHTFKR----GVHLTIYEVTEKDAGNYTVVLT 54
>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 = 30.4 bits (68), Expect = 0.089
Identities = 13/36 (36%), Positives = 22/36 (61%), Gaps = 2/36 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMH 64
+ L C+ G P P+I W++E N+ ++ N +V MH
Sbjct: 1 VRLECRVSGVPHPQIFWKKE-NESLTHNT-DRVSMH 34
>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 = 29.1 bits (65), Expect = 0.21
Identities = 10/18 (55%), Positives = 13/18 (72%)
Query: 29 ITLTCKAEGFPAPEIKWR 46
+TL C AEG+P P I W+
Sbjct: 1 VTLNCSAEGYPPPTIVWK 18
>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 = 28.7 bits (64), Expect = 0.31
Identities = 19/67 (28%), Positives = 27/67 (40%), Gaps = 20/67 (29%)
Query: 28 NITLTCKAEGFPAPEIKW-------RREDNQPISINKRKKVHMHYGEQLNITKISRTEMG 80
++ LTC A G P P +KW +ED P+ N L +T I +
Sbjct: 3 SVNLTCVAVGAPMPYVKWMKGGEELTKEDEMPVGRN-----------VLELTNIYES--A 49
Query: 81 AYLCIAT 87
Y C+A
Sbjct: 50 NYTCVAI 56
>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 = 28.4 bits (63), Expect = 0.38
Identities = 11/35 (31%), Positives = 20/35 (57%), Gaps = 1/35 (2%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHM 63
I + C+A+G P P +W R + + ++ K +V M
Sbjct: 1 IIIECEAKGNPVPTFQWTR-NGKFFNVAKDPRVSM 34
>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 = 28.3 bits (63), Expect = 0.50
Identities = 19/64 (29%), Positives = 29/64 (45%), Gaps = 4/64 (6%)
Query: 31 LTCKAEGFPAPEIKWRREDNQPIS-INKRKKVHMHYGEQLNITKISRTEMGAYLCIAT-K 88
L C+ EG P P I W + PI + + H+ G L +T + ++ Y C A +
Sbjct: 6 LDCQVEGIPTPNITWSI-NGAPIEGTDPDPRRHVSSG-ALILTDVQPSDTAVYQCEARNR 63
Query: 89 IGPL 92
G L
Sbjct: 64 HGNL 67
>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 = 28.2 bits (63), Expect = 0.63
Identities = 8/23 (34%), Positives = 13/23 (56%)
Query: 25 EEFNITLTCKAEGFPAPEIKWRR 47
+E ++L C+A G P P +W
Sbjct: 18 DEGKVSLNCRARGSPPPTYRWLM 40
>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 = 28.4 bits (63), Expect = 0.63
Identities = 18/65 (27%), Positives = 31/65 (47%), Gaps = 4/65 (6%)
Query: 26 EFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRT-EMGAYLC 84
E +++ C+A P P KWR+ +N I + + + G L I + + G Y+C
Sbjct: 19 EGKVSVNCRARANPFPIYKWRK-NNLDIDLTNDR--YSMVGGNLVINNPDKYKDAGRYVC 75
Query: 85 IATKI 89
I + I
Sbjct: 76 IVSNI 80
>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 = 27.6 bits (61), Expect = 0.89
Identities = 20/63 (31%), Positives = 26/63 (41%), Gaps = 6/63 (9%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQ---LNITKISRTEM--GAYL 83
I + C+A+G P P W R I+K KV M +NI + E G Y
Sbjct: 1 IVIQCEAKGKPPPSFSWTRNGTH-FDIDKDPKVTMKPNTGTLVINIMNGEKAEAYEGVYQ 59
Query: 84 CIA 86
C A
Sbjct: 60 CTA 62
>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 = 27.6 bits (61), Expect = 1.1
Identities = 18/76 (23%), Positives = 30/76 (39%), Gaps = 4/76 (5%)
Query: 15 ESTPSSVAVRE---EFNITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNI 71
E PSS+ E E +TL C+A P +W+ + I + + G +
Sbjct: 5 EEQPSSLLFPEGSPEEKVTLGCRARASPPATYRWKMNGTE-IKFAPESRYTLVAGNLVIN 63
Query: 72 TKISRTEMGAYLCIAT 87
+ G+Y C+A
Sbjct: 64 NPQKARDAGSYQCLAI 79
>gnl|CDD|143166 cd00098, IgC, Immunoglobulin Constant domain. IgC:
Immunoglobulin constant domain (IgC). Members of the
IgC family are components of immunoglobulin, T-cell
receptors, CD1 cell surface glycoproteins, secretory
glycoproteins A/C, and Major Histocompatibility Complex
(MHC) class I/II molecules. In immunoglobulins, each
chain is composed of one variable domain (IgV) and one
or more IgC domains. These names reflect the fact that
the variability in sequences is higher in the variable
domain than in the constant domain. The IgV domain is
responsible for antigen binding, and the IgC domain is
involved in oligomerization and molecular interactions.
Length = 95
Score = 27.4 bits (61), Expect = 1.3
Identities = 11/40 (27%), Positives = 19/40 (47%), Gaps = 3/40 (7%)
Query: 17 TPSSVAVREEFNITLTCKAEGF--PAPEIKWRREDNQPIS 54
P S ++TLTC A GF P + W + + + ++
Sbjct: 4 LPPSPEELLGGSVTLTCLATGFYPPDITVTWLK-NGKELT 42
>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 = 27.3 bits (61), Expect = 1.4
Identities = 15/40 (37%), Positives = 21/40 (52%), Gaps = 7/40 (17%)
Query: 24 REEFN----ITLTCKAEGFPAPEI--KWRREDNQPISINK 57
EE + TLTC +GF +I KW + + QP+S K
Sbjct: 10 SEELSLQETATLTCLVKGFSPSDIFVKWLQ-NGQPLSKQK 48
>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 = 27.1 bits (60), Expect = 1.4
Identities = 8/36 (22%), Positives = 20/36 (55%), Gaps = 2/36 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMH 64
+ L C+ P P+I W++ N+ ++ N ++ ++
Sbjct: 1 VRLECRVSAIPPPQIFWKKN-NEMLTYNT-DRISLY 34
>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 = 26.8 bits (60), Expect = 1.5
Identities = 7/26 (26%), Positives = 15/26 (57%), Gaps = 1/26 (3%)
Query: 37 GFPAPEIKWRREDNQPISINKRKKVH 62
G P P + W + D +P+ ++ R ++
Sbjct: 10 GRPTPTVTWSK-DGKPLKLSGRVQIE 34
>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 = 1.7
Identities = 17/58 (29%), Positives = 24/58 (41%), Gaps = 1/58 (1%)
Query: 30 TLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIAT 87
TL C+A G P P I W + PI I G+ + +K+ Y C A+
Sbjct: 5 TLICRANGNPKPSISW-LTNGVPIEIAPTDPSRKVDGDTIIFSKVQERSSAVYQCNAS 61
>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 = 26.5 bits (58), Expect = 1.8
Identities = 13/58 (22%), Positives = 27/58 (46%), Gaps = 3/58 (5%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPISINKRKKVHMHYGEQLNITKISRTEMGAYLCIA 86
+ + CK + P P+ W + + +N ++ + L I I++ + G+Y C A
Sbjct: 4 VIIECKPKAAPKPKFSWSK--GTELLVNN-SRISIWDDGSLEILNITKLDEGSYTCFA 58
>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 = 26.6 bits (59), Expect = 2.2
Identities = 16/58 (27%), Positives = 23/58 (39%), Gaps = 3/58 (5%)
Query: 31 LTCKAEGFPAPEIKWRREDNQPISINKRKKVHM--HYGEQLNITKISRTEMGAYLCIA 86
L C A G P P I W + D +P R + L + + ++ G Y CI
Sbjct: 14 LKCPASGNPRPTITWLK-DGKPFKKEHRIGGYKVRKKKWTLILESVVPSDSGKYTCIV 70
>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 = 26.4 bits (59), Expect = 3.0
Identities = 10/34 (29%), Positives = 16/34 (47%)
Query: 14 TESTPSSVAVREEFNITLTCKAEGFPAPEIKWRR 47
+P S++V+E N+TL C + W R
Sbjct: 1 VTQSPQSLSVQEGENVTLNCNYSTSTFYYLFWYR 34
>gnl|CDD|150691 pfam10045, DUF2280, Uncharacterized conserved protein (DUF2280).
Members of this family of hypothetical bacterial
proteins have no known function.
Length = 104
Score = 26.2 bits (58), Expect = 3.5
Identities = 11/18 (61%), Positives = 13/18 (72%), Gaps = 2/18 (11%)
Query: 17 TPSSV--AVREEFNITLT 32
TPS V AV+EEF I +T
Sbjct: 21 TPSEVAEAVKEEFGIEVT 38
>gnl|CDD|182101 PRK09835, PRK09835, sensor kinase CusS; Provisional.
Length = 482
Score = 27.0 bits (60), Expect = 3.6
Identities = 13/43 (30%), Positives = 16/43 (37%), Gaps = 9/43 (20%)
Query: 75 SRTEMGAYLCIATKIGP---------LKIFWEIIFHMHYGEQL 108
E + IA +GP L I I FH+HY L
Sbjct: 141 GHMEHSNWRMIALPVGPLVDGKPIYTLLIALSIDFHLHYINDL 183
>gnl|CDD|219745 pfam08205, C2-set_2, CD80-like C2-set immunoglobulin domain.
These domains belong to the immunoglobulin superfamily.
Length = 89
Score = 25.8 bits (57), Expect = 4.1
Identities = 13/55 (23%), Positives = 19/55 (34%), Gaps = 5/55 (9%)
Query: 9 PNILDTESTPSSVAVREEFNITLTCKAE-GFPAPEIKWRREDNQPISINKRKKVH 62
P I S E + TC + G PAP I W + + +I +
Sbjct: 1 PTIEPPVSLLE----GENLEVVATCSSAGGKPAPRITWYLDGRELEAITTSSEQD 51
>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 = 25.7 bits (56), Expect = 4.4
Identities = 10/23 (43%), Positives = 13/23 (56%), Gaps = 1/23 (4%)
Query: 30 TLTCKAEGF-PAPEIKWRREDNQ 51
L C + G PA IKWR+ D +
Sbjct: 3 KLRCTSSGSKPAANIKWRKGDQE 25
>gnl|CDD|143322 cd07698, IgC_MHC_I_alpha3, Class I major histocompatibility
complex (MHC) alpha chain immunoglobulin domain.
IgC_MHC_I_alpha3; Immunoglobulin (Ig) domain of major
histocompatibility complex (MHC) class I alpha chain.
Class I MHC proteins bind antigenic peptide fragments
and present them to CD8+ T lymphocytes. Class I
molecules consist of a transmembrane alpha chain and a
small chain called the beta2 microglobulin. The alpha
chain contains three extracellular domains, two of
which fold together to form the peptide-binding cleft
(alpha1 and alpha2), and one which has an Ig fold
(alpha3). Peptide binding to class I molecules occurs
in the endoplasmic reticulum (ER) and involves both
chaperones and dedicated factors to assist in peptide
loading. Class I MHC molecules are expressed on most
nucleated cells.
Length = 93
Score = 25.7 bits (57), Expect = 4.4
Identities = 10/22 (45%), Positives = 14/22 (63%), Gaps = 2/22 (9%)
Query: 28 NITLTCKAEGF-PAP-EIKWRR 47
++TL+C A GF P E+ W R
Sbjct: 16 SLTLSCHATGFYPRDIEVTWLR 37
>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 = 25.7 bits (56), Expect = 5.1
Identities = 9/23 (39%), Positives = 13/23 (56%)
Query: 25 EEFNITLTCKAEGFPAPEIKWRR 47
+E + L C+A G P P +W R
Sbjct: 18 DEKKVILNCEARGNPVPTYRWLR 40
>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 = 25.3 bits (55), Expect = 5.2
Identities = 11/26 (42%), Positives = 15/26 (57%), Gaps = 1/26 (3%)
Query: 29 ITLTCKAEGFPAPEIKWRREDNQPIS 54
+TL C +G P P +W R D P+S
Sbjct: 1 VTLRCHIDGHPRPTYQWFR-DGTPLS 25
>gnl|CDD|143318 cd07694, Ig2_CD4, Second immunoglobulin (Ig) domain of CD4.
Ig2_CD4; second immunoglobulin (Ig) domain of CD4. CD4
and CD8 are the two primary co-receptor proteins found
on the surface of T cells, and the presence of either
CD4 or CD8 determines the function of the T cell. CD4
is found on helper T cells, where it is required for
the binding of MHC (major histocompatibility complex)
class II molecules, while CD8 is found on cytotoxic T
cells, where it is required for the binding of MHC
class I molecules. CD4 contains four immunoglobulin
domains, with the first three included in this
hierarchy. The fourth domain has a general Ig
architecture, but has slight topological changes in the
arrangement of beta strands relative to the other
structures in this family and is not specifically
included in the hierarchy.
Length = 88
Score = 25.3 bits (55), Expect = 7.3
Identities = 16/62 (25%), Positives = 28/62 (45%), Gaps = 8/62 (12%)
Query: 25 EEFNITLTCKAEGFPAPEIKWRREDNQPISI-NKRKKVHMHYGEQLNITKISRTEMGAYL 83
+TL + PA +++WR N+ I N+ KK LN+ ++ + G +
Sbjct: 15 TNLTLTLHGSSNSLPAFKVEWRGPGNKSKQILNQDKKT-------LNLVQLGPNDSGTWD 67
Query: 84 CI 85
CI
Sbjct: 68 CI 69
>gnl|CDD|178177 PLN02563, PLN02563, aminoacyl-tRNA ligase.
Length = 963
Score = 26.3 bits (58), Expect = 7.5
Identities = 11/53 (20%), Positives = 20/53 (37%), Gaps = 4/53 (7%)
Query: 3 AYKSVPPNILDTESTPSSVAVREEFNITLTCKAEGFPAPEI--KWRR--EDNQ 51
+ + L + + A+ T +P EI KW+R E+N+
Sbjct: 45 SRRGGVSRSLTRRAFAAPSALTSTTAKTTPAAKRAYPFHEIEPKWQRYWEENR 97
>gnl|CDD|143326 cd07702, Ig2_VEGFR-1, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 1
(VEGFR-1). Ig2_VEGFR-1: Second immunoglobulin
(Ig)-like domain of vascular endothelial growth factor
receptor 1 (VEGFR-1). 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-1 binds VEGF-A strongly; 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-1 may play an inhibitory rolet in the
function of VEGFR-2 by binding VEGF-A and interfering
with its interaction with VEGFR-2. VEGFR-1 has a
signaling role in mediating monocyte chemotaxis and may
mediate a chemotactic and a survival signal in
hematopoietic stem cells or leukemia cells.
Length = 72
Score = 24.8 bits (54), Expect = 8.3
Identities = 9/18 (50%), Positives = 13/18 (72%)
Query: 31 LTCKAEGFPAPEIKWRRE 48
LT K + FPAPE+ W ++
Sbjct: 3 LTPKVKAFPAPEVIWLKD 20
>gnl|CDD|143236 cd05759, Ig2_KIRREL3-like, Second immunoglobulin (Ig)-like domain
of Kirrel (kin of irregular chiasm-like) 3 (also known
as Neph2). Ig2_KIRREL3-like: domain similar to the
second 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 = 82
Score = 24.7 bits (54), Expect = 8.6
Identities = 11/19 (57%), Positives = 13/19 (68%), Gaps = 1/19 (5%)
Query: 31 LTCKAEGF-PAPEIKWRRE 48
LTC+A G PA EI W R+
Sbjct: 4 LTCRARGAKPAAEIIWFRD 22
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
0.318 0.133 0.396
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: 6,967,835
Number of extensions: 590110
Number of successful extensions: 482
Number of sequences better than 10.0: 1
Number of HSP's gapped: 468
Number of HSP's successfully gapped: 87
Length of query: 142
Length of database: 10,937,602
Length adjustment: 87
Effective length of query: 55
Effective length of database: 7,078,804
Effective search space: 389334220
Effective search space used: 389334220
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: 54 (24.8 bits)