RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy11131
(150 letters)
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 48.7 bits (116), Expect = 2e-08
Identities = 24/87 (27%), Positives = 35/87 (40%), Gaps = 12/87 (13%)
Query: 61 PPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIP---------GRTSSTSLVINPV 111
PP ++V S CE + S P + W+K G ++ S+++L I+ V
Sbjct: 1 PPSVTVKEGESVTLSCEAS--GSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNV 58
Query: 112 GREDRGIYQCIARRSDGDVAQGSAELQ 138
ED G Y C A S G L
Sbjct: 59 TPEDSGTYTCAATNSSGSA-SSGTTLT 84
Score = 42.9 bits (101), Expect = 3e-06
Identities = 19/51 (37%), Positives = 25/51 (49%), Gaps = 4/51 (7%)
Query: 5 LVLPGPRTRVLGP----ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L+ R V L I VT EDSGTY C+++N G A++ L V
Sbjct: 35 LLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGTTLTV 85
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 48.7 bits (116), Expect = 2e-08
Identities = 24/87 (27%), Positives = 35/87 (40%), Gaps = 12/87 (13%)
Query: 61 PPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIP---------GRTSSTSLVINPV 111
PP ++V S CE + S P + W+K G ++ S+++L I+ V
Sbjct: 1 PPSVTVKEGESVTLSCEAS--GSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNV 58
Query: 112 GREDRGIYQCIARRSDGDVAQGSAELQ 138
ED G Y C A S G L
Sbjct: 59 TPEDSGTYTCAATNSSGSA-SSGTTLT 84
Score = 42.9 bits (101), Expect = 3e-06
Identities = 19/51 (37%), Positives = 25/51 (49%), Gaps = 4/51 (7%)
Query: 5 LVLPGPRTRVLGP----ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L+ R V L I VT EDSGTY C+++N G A++ L V
Sbjct: 35 LLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGTTLTV 85
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 47.8 bits (114), Expect = 2e-08
Identities = 20/64 (31%), Positives = 26/64 (40%), Gaps = 6/64 (9%)
Query: 69 DGSANFQCEITPYDSGPYLIAWFKDGRQIPGR----TSSTSLVINPVGREDRGIYQCIAR 124
S C I W KDG+ +P S ++L I V ED G+Y C+A
Sbjct: 2 GQSVTLTCPAEGNPV--PNITWLKDGKPLPESNRFVASGSTLTIKSVSLEDSGLYTCVAE 59
Query: 125 RSDG 128
S G
Sbjct: 60 NSAG 63
Score = 31.2 bits (71), Expect = 0.030
Identities = 14/33 (42%), Positives = 17/33 (51%), Gaps = 1/33 (3%)
Query: 7 LPGPRTRVL-GPILAIEGVTAEDSGTYRCSSSN 38
LP V G L I+ V+ EDSG Y C + N
Sbjct: 28 LPESNRFVASGSTLTIKSVSLEDSGLYTCVAEN 60
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 47.2 bits (113), Expect = 6e-08
Identities = 27/85 (31%), Positives = 40/85 (47%), Gaps = 15/85 (17%)
Query: 64 LSVHLDGSANFQCEIT--PYDSGPYLIAWFKDGRQIPG--------RTSSTSLVINPVGR 113
+ V SA F C +T P ++WFKDG+ + + +L I+ V
Sbjct: 10 VEVQEGESARFTCTVTGDP----DPTVSWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQP 65
Query: 114 EDRGIYQCIARRSDGDVAQGSAELQ 138
+D G Y C+A S G+ A+ SAEL
Sbjct: 66 DDEGKYTCVATNSAGE-AEASAELT 89
Score = 43.4 bits (103), Expect = 2e-06
Identities = 14/33 (42%), Positives = 17/33 (51%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I V +D G Y C ++N GEA A L V
Sbjct: 58 LTISNVQPDDEGKYTCVATNSAGEAEASAELTV 90
>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 = 42.9 bits (100), Expect = 2e-06
Identities = 20/71 (28%), Positives = 29/71 (40%), Gaps = 14/71 (19%)
Query: 72 ANFQCEITPYDSGPYLIAWFKDGRQIPGR------------TSSTSLVINPVGREDRGIY 119
C + P I W K+G+ +P + S++L I+ V ED G Y
Sbjct: 1 VTLTCLASGPP--PPTITWLKNGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTY 58
Query: 120 QCIARRSDGDV 130
C+A S G V
Sbjct: 59 TCVASNSAGTV 69
Score = 35.9 bits (82), Expect = 9e-04
Identities = 16/30 (53%), Positives = 18/30 (60%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVR 48
L I VT EDSGTY C +SN G +A V
Sbjct: 45 LTISNVTLEDSGTYTCVASNSAGTVSASVT 74
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 42.0 bits (98), Expect = 4e-06
Identities = 19/68 (27%), Positives = 29/68 (42%), Gaps = 5/68 (7%)
Query: 61 PPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIPGR----TSSTSLVINPVGREDR 116
P SV G C P I+W+++G G +S ++L ++ V ED
Sbjct: 7 SPSPSVTSGGGVTLTCSAEGG-PPPPTISWYRNGSISGGSGGLGSSGSTLTLSSVTSEDS 65
Query: 117 GIYQCIAR 124
G Y C+A
Sbjct: 66 GTYTCVAS 73
Score = 29.7 bits (66), Expect = 0.16
Identities = 13/29 (44%), Positives = 16/29 (55%)
Query: 10 PRTRVLGPILAIEGVTAEDSGTYRCSSSN 38
G L + VT+EDSGTY C +SN
Sbjct: 46 GGLGSSGSTLTLSSVTSEDSGTYTCVASN 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 = 38.9 bits (91), Expect = 5e-05
Identities = 18/46 (39%), Positives = 23/46 (50%), Gaps = 1/46 (2%)
Query: 7 LPGPRTRVLGP-ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
LP R +L L I VTA D G+Y C + N+ G+ A L V
Sbjct: 24 LPKGRAEILDDKSLKIRNVTAGDEGSYTCEAENMVGKIEASASLTV 69
Score = 28.5 bits (64), Expect = 0.39
Identities = 24/71 (33%), Positives = 30/71 (42%), Gaps = 7/71 (9%)
Query: 72 ANFQCEITPYDSGPYLIAWFKDGRQIP-GRT---SSTSLVINPVGREDRGIYQCIARRSD 127
FQCE+ D P + W K+ ++P GR SL I V D G Y C A
Sbjct: 1 VEFQCEVGG-DPVPT-VLWRKEDGELPKGRAEILDDKSLKIRNVTAGDEGSYTCEAENMV 58
Query: 128 GDVAQGSAELQ 138
G + SA L
Sbjct: 59 GK-IEASASLT 68
>gnl|CDD|165173 PHA02826, PHA02826, IL-1 receptor-like protein; Provisional.
Length = 227
Score = 38.7 bits (90), Expect = 4e-04
Identities = 32/113 (28%), Positives = 47/113 (41%), Gaps = 17/113 (15%)
Query: 19 LAIEGVTAEDSGTYRC--SSSNIGGEATAEVRLQV-STPYRVDVNPPL-LSVHLDGSANF 74
L I V D G Y C SS NI E+T +RL S N +H G+
Sbjct: 100 LWIGNVINIDEGIYICTISSGNICEEST--IRLTFDSGTINYQFNSGKDSKLHCYGTDGI 157
Query: 75 QCEITPYDSGPYLIAWFKDGRQIPG------RTSSTSLVINPVGREDRGIYQC 121
+ + Y + W+K+G + R ++++LVI +D GIY C
Sbjct: 158 S---STFKD--YTLTWYKNGNIVLYTDRIQLRNNNSTLVIKSATHDDSGIYTC 205
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 36.6 bits (85), Expect = 5e-04
Identities = 18/78 (23%), Positives = 23/78 (29%), Gaps = 4/78 (5%)
Query: 61 PPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIPGRTSSTSLVINPVGREDRGIYQ 120
P V C + P W+KDG + +S V ED G Y
Sbjct: 6 PSPTVVFEGEDVTLTCSAP--GNPPPNYTWYKDGVPLS--SSQNGFFTPNVSAEDSGTYT 61
Query: 121 CIARRSDGDVAQGSAELQ 138
C+A G L
Sbjct: 62 CVASNGGGGKTSNPVTLT 79
Score = 28.6 bits (64), Expect = 0.39
Identities = 16/29 (55%), Positives = 20/29 (68%), Gaps = 1/29 (3%)
Query: 24 VTAEDSGTYRCSSSNI-GGEATAEVRLQV 51
V+AEDSGTY C +SN GG+ + V L V
Sbjct: 52 VSAEDSGTYTCVASNGGGGKTSNPVTLTV 80
>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 = 35.8 bits (83), Expect = 8e-04
Identities = 17/40 (42%), Positives = 22/40 (55%), Gaps = 2/40 (5%)
Query: 7 LPGPRTRVL--GPILAIEGVTAEDSGTYRCSSSNIGGEAT 44
LP RT+ L I+ V+ ED G YRC++SN G A
Sbjct: 24 LPADRTKFENFNKTLKIDNVSEEDDGEYRCTASNSLGSAR 63
Score = 30.4 bits (69), Expect = 0.064
Identities = 17/46 (36%), Positives = 22/46 (47%), Gaps = 5/46 (10%)
Query: 88 IAWFK-DGRQIPGRTS----STSLVINPVGREDRGIYQCIARRSDG 128
I+W K G RT + +L I+ V ED G Y+C A S G
Sbjct: 15 ISWIKIGGELPADRTKFENFNKTLKIDNVSEEDDGEYRCTASNSLG 60
>gnl|CDD|215677 pfam00047, ig, Immunoglobulin domain. Members of the
immunoglobulin superfamily are found in hundreds of
proteins of different functions. Examples include
antibodies, the giant muscle kinase titin and receptor
tyrosine kinases. Immunoglobulin-like domains may be
involved in protein-protein and protein-ligand
interactions. The Pfam alignments do not include the
first and last strand of the immunoglobulin-like domain.
Length = 62
Score = 35.2 bits (81), Expect = 0.001
Identities = 17/63 (26%), Positives = 25/63 (39%), Gaps = 11/63 (17%)
Query: 70 GSANFQCEITPYDSGPYLIAWFKDGRQIPG---------RTSSTSLVINPVGREDRGIYQ 120
S C ++ WFK+G+ + R SS +L I+ V ED G Y
Sbjct: 2 SSVTLTCSVSGPPQVDVT--WFKEGKGLEESTTVGTDENRVSSITLTISNVTPEDSGTYT 59
Query: 121 CIA 123
C+
Sbjct: 60 CVV 62
>gnl|CDD|143271 cd05863, Ig2_VEGFR-3, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
Ig2_VEGFR-3: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 3 (VEGFR-3).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-3 (Flt-4) binds
two members of the VEGF family (VEGF-C and -D) and is
involved in tumor angiogenesis and growth.
Length = 67
Score = 34.9 bits (80), Expect = 0.002
Identities = 14/39 (35%), Positives = 18/39 (46%)
Query: 88 IAWFKDGRQIPGRTSSTSLVINPVGREDRGIYQCIARRS 126
W+KDG+ I G+ S SL I V G Y + S
Sbjct: 15 FQWYKDGKLISGKHSQHSLQIKDVTEASAGTYTLVLWNS 53
>gnl|CDD|143248 cd05771, IgC_Tapasin_R, Tapasin-R immunoglobulin-like domain.
IgC_Tapasin_R: Immunoglobulin-like domain on Tapasin-R.
Tapasin is a V-C1 (variable-constant) immunoglobulin
superfamily molecule present in the endoplasmic
reticulum (ER), where it links MHC class I molecules to
the transporter associated with antigen processing
(TAP). Tapasin-R is a tapasin-related protein that
contains similar structural motifs to Tapasin, with some
marked differences, especially in the V domain,
transmembrane and cytoplasmic regions. The majority of
Tapasin-R is located within the ER; however, there may
be some expression of Tapasin-R at the cell surface.
Tapasin-R lacks an obvious ER retention signal.
Length = 139
Score = 36.0 bits (83), Expect = 0.002
Identities = 26/91 (28%), Positives = 39/91 (42%), Gaps = 3/91 (3%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQVSTPYRVDVNPPLLSVHLDGSANFQCEI 78
L + G+T D GTY CS S +A ++L VS P RV ++ L ++ C I
Sbjct: 3 LTLPGLTVHDEGTYICSVSTPPHQAQQIIQLSVSEPPRVRLSLEKLVSMIEEPQTLICHI 62
Query: 79 TPYDSGPYLIAWFKDGRQIPGRTSSTSLVIN 109
Y + W R+ PG + + N
Sbjct: 63 AGYYPLDVQVEWT---REPPGDSPPPVSLSN 90
>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 = 34.8 bits (80), Expect = 0.003
Identities = 15/36 (41%), Positives = 21/36 (58%)
Query: 16 GPILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
G +L I + ED GTY C + NI G+ T + R+ V
Sbjct: 52 GAVLKIPNIQFEDEGTYECEAENIKGKDTHQGRIYV 87
Score = 34.0 bits (78), Expect = 0.005
Identities = 19/51 (37%), Positives = 21/51 (41%), Gaps = 5/51 (9%)
Query: 88 IAWFK-DGRQIPGRTSSTS---LVINPVGREDRGIYQCIARRSDG-DVAQG 133
I W K DG S S L I + ED G Y+C A G D QG
Sbjct: 33 IKWRKVDGSMPSSAEISMSGAVLKIPNIQFEDEGTYECEAENIKGKDTHQG 83
>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 = 34.0 bits (78), Expect = 0.005
Identities = 15/33 (45%), Positives = 21/33 (63%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I T +D+G++ C +SN GEATA V L +
Sbjct: 42 LDILITTVKDTGSFTCIASNAAGEATATVELHI 74
>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 = 33.8 bits (78), Expect = 0.006
Identities = 12/40 (30%), Positives = 18/40 (45%), Gaps = 4/40 (10%)
Query: 88 IAWFKDGRQIPGR----TSSTSLVINPVGREDRGIYQCIA 123
+ W+KD + + G + L+I V ED G Y C
Sbjct: 32 VQWYKDCKLLEGDRKRFVKGSKLLIQNVTEEDAGNYTCKL 71
Score = 28.4 bits (64), Expect = 0.54
Identities = 11/22 (50%), Positives = 13/22 (59%)
Query: 13 RVLGPILAIEGVTAEDSGTYRC 34
V G L I+ VT ED+G Y C
Sbjct: 48 FVKGSKLLIQNVTEEDAGNYTC 69
>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 = 32.9 bits (75), Expect = 0.009
Identities = 18/47 (38%), Positives = 25/47 (53%), Gaps = 5/47 (10%)
Query: 87 LIAWFKDGRQI--PGR---TSSTSLVINPVGREDRGIYQCIARRSDG 128
I W KDG Q+ G+ + L I VG D+G Y+C+AR + G
Sbjct: 14 TITWNKDGVQVTESGKFHISPEGYLAIRDVGVADQGRYECVARNTIG 60
>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 = 33.3 bits (76), Expect = 0.010
Identities = 16/54 (29%), Positives = 25/54 (46%), Gaps = 5/54 (9%)
Query: 90 WFKDGRQIPGR----TSSTSLVINPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
W K+G+ + + L I + D G+YQC+A G + SAEL +
Sbjct: 33 WLKNGQPLASENRIEVEAGDLRITKLSLSDSGMYQCVAENKHGTI-YASAELAV 85
Score = 28.3 bits (63), Expect = 0.58
Identities = 14/41 (34%), Positives = 18/41 (43%)
Query: 11 RTRVLGPILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
R V L I ++ DSG Y+C + N G A L V
Sbjct: 45 RIEVEAGDLRITKLSLSDSGMYQCVAENKHGTIYASAELAV 85
>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 = 32.6 bits (75), Expect = 0.014
Identities = 11/34 (32%), Positives = 17/34 (50%)
Query: 18 ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+ DSG Y + N GE +A + ++V
Sbjct: 41 SLVIKNAERSDSGKYTLTLKNPAGEKSATINVKV 74
Score = 27.5 bits (62), Expect = 0.89
Identities = 17/40 (42%), Positives = 20/40 (50%), Gaps = 8/40 (20%)
Query: 88 IAWFKDGRQI--PGR------TSSTSLVINPVGREDRGIY 119
+ W KDG+ + GR SSTSLVI R D G Y
Sbjct: 16 VTWSKDGKPLKLSGRVQIETTASSTSLVIKNAERSDSGKY 55
>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 = 32.2 bits (73), Expect = 0.020
Identities = 14/48 (29%), Positives = 21/48 (43%), Gaps = 7/48 (14%)
Query: 90 WFKDGRQIPGRTSSTS-------LVINPVGREDRGIYQCIARRSDGDV 130
WF+DG + + S L + G +D G+Y C A + G V
Sbjct: 17 WFRDGTPLSDGQGNYSVSSKERTLTLRSAGPDDSGLYYCCAHNAFGSV 64
>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 = 31.9 bits (72), Expect = 0.021
Identities = 22/69 (31%), Positives = 33/69 (47%), Gaps = 8/69 (11%)
Query: 74 FQCEITPYDSGPYLIAWFKDGRQ-IPGR----TSSTSLVINPVGREDRGIYQCIARRSDG 128
F+CE+T + + W K+G IP +L + + + D G YQCIA G
Sbjct: 4 FECEVTGKPTPT--VKWVKNGDMVIPSDYFKIVKEHNLQVLGLVKSDEGFYQCIAENDVG 61
Query: 129 DVAQGSAEL 137
+V Q A+L
Sbjct: 62 NV-QAGAQL 69
>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 = 32.3 bits (73), Expect = 0.023
Identities = 14/36 (38%), Positives = 20/36 (55%)
Query: 16 GPILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
G +L I + ED GTY C + NI G+ + R+ V
Sbjct: 52 GAVLKIFNIQPEDEGTYECEAENIKGKDKHQARVYV 87
>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 = 32.2 bits (74), Expect = 0.029
Identities = 15/36 (41%), Positives = 17/36 (47%), Gaps = 4/36 (11%)
Query: 19 LAIEGVTAEDSGTYRC--SSSNIGGEATAEVRLQVS 52
L I V A D G Y C S EAT V L+V+
Sbjct: 67 LRIHNVRASDEGLYTCFFQSDGFYEEAT--VELKVA 100
>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 = 32.2 bits (73), Expect = 0.032
Identities = 14/34 (41%), Positives = 16/34 (47%), Gaps = 1/34 (2%)
Query: 19 LAIEGVTAEDSGTYRCSSSN-IGGEATAEVRLQV 51
L I + DSGTY C+ SN A RL V
Sbjct: 81 LTISNLRLSDSGTYTCAVSNPNELVFGAGTRLTV 114
Score = 30.7 bits (69), Expect = 0.13
Identities = 18/107 (16%), Positives = 29/107 (27%), Gaps = 30/107 (28%)
Query: 61 PPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGR---------------------QIPG 99
P ++V GS C + + W+K + G
Sbjct: 8 PRPVTVAEGGSVTLPCSFSSSSGSTS-VYWYKQPLGKGPELIIHYVTSTPNGKVGPRFKG 66
Query: 100 RTSST--------SLVINPVGREDRGIYQCIARRSDGDVAQGSAELQ 138
R + + SL I+ + D G Y C + V L
Sbjct: 67 RVTLSGNGSKNDFSLTISNLRLSDSGTYTCAVSNPNELVFGAGTRLT 113
>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 = 31.3 bits (71), Expect = 0.035
Identities = 12/33 (36%), Positives = 16/33 (48%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+ ED+G Y S+ N G + RL V
Sbjct: 43 LLIQNANKEDAGWYTVSAVNEAGVVSCNARLDV 75
>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 = 31.2 bits (71), Expect = 0.045
Identities = 14/56 (25%), Positives = 25/56 (44%), Gaps = 6/56 (10%)
Query: 88 IAWFKDGRQI----PGRT--SSTSLVINPVGREDRGIYQCIARRSDGDVAQGSAEL 137
++W KDG+ + +L+I + D G Y+C+A G+ +A L
Sbjct: 29 VSWRKDGQPLNLDNERVRIVDDGNLLIAEARKSDEGTYKCVATNMVGERESAAARL 84
Score = 27.7 bits (62), Expect = 0.95
Identities = 14/40 (35%), Positives = 20/40 (50%), Gaps = 1/40 (2%)
Query: 4 LLVLPGPRTRVL-GPILAIEGVTAEDSGTYRCSSSNIGGE 42
L L R R++ L I D GTY+C ++N+ GE
Sbjct: 37 PLNLDNERVRIVDDGNLLIAEARKSDEGTYKCVATNMVGE 76
>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 = 31.4 bits (71), Expect = 0.049
Identities = 16/66 (24%), Positives = 25/66 (37%), Gaps = 15/66 (22%)
Query: 88 IAWFKDGRQIPGRTSST---------------SLVINPVGREDRGIYQCIARRSDGDVAQ 132
I W K+G+ + +V GR D G+Y C+A S G+
Sbjct: 33 IQWLKNGQPLETDKDDPRSHRIVLPSGSLFFLRVVHGRKGRSDEGVYVCVAHNSLGEAVS 92
Query: 133 GSAELQ 138
+A L+
Sbjct: 93 RNASLE 98
>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 = 31.1 bits (70), Expect = 0.054
Identities = 20/58 (34%), Positives = 28/58 (48%), Gaps = 7/58 (12%)
Query: 71 SANFQCEITPYDSGPYLIAWFKDGRQIPGRT-----SSTSLVINPVGREDRGIYQCIA 123
+ +F CE Y +IAW K G Q+ SS +L I+ V D+G Y+C A
Sbjct: 4 TVDFLCEAQGYP--QPVIAWTKGGSQLSVDRRHLVLSSGTLRISRVALHDQGQYECQA 59
Score = 25.7 bits (56), Expect = 3.7
Identities = 12/33 (36%), Positives = 14/33 (42%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I V D G Y C + NI G +L V
Sbjct: 42 LRISRVALHDQGQYECQAVNIVGSQRTVAQLTV 74
>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 = 31.4 bits (71), Expect = 0.057
Identities = 12/33 (36%), Positives = 16/33 (48%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
+ I V D Y C + N GE AE+ L+V
Sbjct: 60 MTILDVDKLDEAEYTCIAENKAGEQEAEIHLKV 92
Score = 26.0 bits (57), Expect = 4.9
Identities = 13/49 (26%), Positives = 18/49 (36%), Gaps = 7/49 (14%)
Query: 88 IAWFKDGRQIPGRTS-------STSLVINPVGREDRGIYQCIARRSDGD 129
+ W KDG I + + I V + D Y CIA G+
Sbjct: 35 MTWTKDGEPIESGEEKYSFNEDGSEMTILDVDKLDEAEYTCIAENKAGE 83
>gnl|CDD|143231 cd05754, Ig3_Perlecan_like, Third immunoglobulin (Ig)-like domain
found in Perlecan and similar proteins.
Ig3_Perlecan_like: domain similar to the third
immunoglobulin (Ig)-like domain found in Perlecan.
Perlecan is a large multi-domain heparin sulfate
proteoglycan, important in tissue development and
organogenesis. Perlecan can be represented as 5 major
portions; its fourth major portion (domain IV) is a
tandem repeat of immunoglobulin-like domains (Ig2-Ig15),
which can vary in size due to alternative splicing.
Perlecan binds many cellular and extracellular ligands.
Its domain IV region has many binding sites. Some of
these have been mapped at the level of individual
Ig-like domains, including a site restricted to the Ig5
domain for heparin/sulfatide, a site restricted to the
Ig3 domain for nidogen-1 and nidogen-2, a site
restricted to Ig4-5 for fibronectin, and sites
restricted to Ig2 and to Ig13-15 for fibulin-2.
Length = 85
Score = 30.6 bits (69), Expect = 0.083
Identities = 22/86 (25%), Positives = 31/86 (36%), Gaps = 7/86 (8%)
Query: 56 RVDVNPP-LLSVHLDGSANFQCEITPYDSGP-YLIAWFKDGRQIPGRT--SSTSLVINPV 111
+V V P V +F C P Y + W + G +P R + L I V
Sbjct: 2 QVTVEEPRSQEVRPGADVSFIC--RAKSKSPAYTLVWTRVGGGLPSRAMDFNGILTIRNV 59
Query: 112 GREDRGIYQCIARRSDGDVAQGSAEL 137
D G Y C + D + +A L
Sbjct: 60 QLSDAGTYVCTG-SNMLDTDEATATL 84
Score = 30.2 bits (68), Expect = 0.12
Identities = 16/37 (43%), Positives = 19/37 (51%), Gaps = 2/37 (5%)
Query: 11 RTRVLGPILAIEGVTAEDSGTYRCSSSNIGG--EATA 45
R IL I V D+GTY C+ SN+ EATA
Sbjct: 46 RAMDFNGILTIRNVQLSDAGTYVCTGSNMLDTDEATA 82
>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 = 30.4 bits (69), Expect = 0.085
Identities = 11/35 (31%), Positives = 16/35 (45%), Gaps = 6/35 (17%)
Query: 10 PRTRVLGP------ILAIEGVTAEDSGTYRCSSSN 38
+ L L I T +DSGTY C++S+
Sbjct: 36 VTRQSLSEATELSSTLTIPNATLKDSGTYTCAASS 70
>gnl|CDD|143174 cd04973, Ig1_FGFR, First immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig1_FGFR:
The first immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth
factors (FGFs) participate in morphogenesis,
development, angiogenesis, and wound healing. These
FGF-stimulated processes are mediated by four FGFR
tyrosine kinases (FGRF1-4). FGFRs are comprised of an
extracellular portion consisting of three Ig-like
domains, a transmembrane helix, and a cytoplasmic
portion having protein tyrosine kinase activity. The
highly conserved Ig-like domains 2 and 3, and the
linker region between D2 and D3 define a general
binding site for all FGFs.
Length = 79
Score = 30.2 bits (68), Expect = 0.092
Identities = 13/37 (35%), Positives = 18/37 (48%)
Query: 8 PGPRTRVLGPILAIEGVTAEDSGTYRCSSSNIGGEAT 44
RTR+ G + I+ DSG Y C +S+ G T
Sbjct: 36 ENNRTRITGEEVQIKDAVPRDSGLYACVTSSPSGSDT 72
Score = 27.5 bits (61), Expect = 0.97
Identities = 15/45 (33%), Positives = 19/45 (42%), Gaps = 4/45 (8%)
Query: 88 IAWFKDGRQIP--GRTSSTS--LVINPVGREDRGIYQCIARRSDG 128
I W KDG Q+ RT T + I D G+Y C+ G
Sbjct: 25 INWTKDGVQLGENNRTRITGEEVQIKDAVPRDSGLYACVTSSPSG 69
>gnl|CDD|143240 cd05763, Ig_1, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_1: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 75
Score = 30.3 bits (68), Expect = 0.092
Identities = 16/53 (30%), Positives = 23/53 (43%), Gaps = 9/53 (16%)
Query: 88 IAWFKDG---------RQIPGRTSSTSLVINPVGREDRGIYQCIARRSDGDVA 131
IAW KDG R++ I V ED G+Y C A+ + G ++
Sbjct: 15 IAWQKDGGTDFPAARERRMHVMPEDDVFFIVDVKIEDTGVYSCTAQNTAGSIS 67
Score = 27.2 bits (60), Expect = 1.1
Identities = 12/34 (35%), Positives = 17/34 (50%)
Query: 18 ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
+ I V ED+G Y C++ N G +A L V
Sbjct: 41 VFFIVDVKIEDTGVYSCTAQNTAGSISANATLTV 74
>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 = 30.6 bits (69), Expect = 0.10
Identities = 13/34 (38%), Positives = 18/34 (52%), Gaps = 2/34 (5%)
Query: 18 ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L IE VT D G Y C++S+ G+ A+ V
Sbjct: 51 TLTIENVTLSDLGRYTCTASS--GQMIAKNSTIV 82
>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 = 30.2 bits (68), Expect = 0.12
Identities = 11/31 (35%), Positives = 12/31 (38%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRL 49
L I DSG Y C NI G T +
Sbjct: 45 LQINKAKLADSGEYTCVVENILGNDTVTANV 75
Score = 27.5 bits (61), Expect = 0.95
Identities = 16/60 (26%), Positives = 23/60 (38%), Gaps = 12/60 (20%)
Query: 75 QCEITPYDSGPYLIAWFKDGRQ-----------IPGRTSSTSLVINPVGREDRGIYQCIA 123
+CE T WFKDG++ I + ++ L IN D G Y C+
Sbjct: 4 KCEATSEYPSLRF-KWFKDGKELNRKNKPRNIKIRNKKKNSELQINKAKLADSGEYTCVV 62
>gnl|CDD|240177 cd05156, ChoK_euk, Choline Kinase (ChoK) in eukaryotes. The ChoK
subfamily is part of a larger superfamily that includes
the catalytic domains of other kinases, such as the
typical serine/threonine/tyrosine protein kinases (PKs),
RIO kinases, actin-fragmin kinase (AFK), and
phosphoinositide 3-kinase (PI3K). It is composed of
bacterial and eukaryotic choline kinases, as well as
eukaryotic ethanolamine kinase. ChoK catalyzes the
transfer of the gamma-phosphoryl group from ATP (or CTP)
to its substrate, choline, producing phosphorylcholine
(PCho), a precursor to the biosynthesis of two major
membrane phospholipids, phosphatidylcholine (PC) and
sphingomyelin (SM). Although choline is the preferred
substrate, ChoK also shows substantial activity towards
ethanolamine and its N-methylated derivatives. ChoK
plays an important role in cell signaling pathways and
the regulation of cell growth. Along with PCho, it is
involved in malignant transformation through Ras
oncogenes in various human cancers such as breast, lung,
colon, prostate, neuroblastoma, and hepatic lymphoma. In
mammalian cells, there are three ChoK isoforms (A-1,
A-2, and B) which are active in homo or heterodimeric
forms.
Length = 302
Score = 31.1 bits (71), Expect = 0.16
Identities = 17/45 (37%), Positives = 22/45 (48%), Gaps = 9/45 (20%)
Query: 84 GPYLIAWFKDGR--Q-IPGRTSSTSLVINPVGREDRGIYQCIARR 125
GP L F +GR + IP RT +T + +P I IARR
Sbjct: 63 GPKLYGIFPNGRIEEFIPSRTLTTEELRDP------DISAEIARR 101
>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 = 29.8 bits (67), Expect = 0.18
Identities = 12/54 (22%), Positives = 21/54 (38%), Gaps = 9/54 (16%)
Query: 88 IAWFKDGRQIPG---------RTSSTSLVINPVGREDRGIYQCIARRSDGDVAQ 132
+ W K+G++ R SL++ V D+G Y C+ G +
Sbjct: 26 MRWLKNGKEFKQEHRIGGYKVRNQHWSLIMESVVPSDKGNYTCVVENEYGSINH 79
>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 = 28.7 bits (64), Expect = 0.30
Identities = 16/49 (32%), Positives = 22/49 (44%), Gaps = 8/49 (16%)
Query: 88 IAWFKDGRQIPGRTSS--------TSLVINPVGREDRGIYQCIARRSDG 128
+ W K+G I + S + L I+ V ED G Y CIA+ G
Sbjct: 15 LTWLKNGMDITPKLSKQLTLIANGSELHISNVRYEDTGAYTCIAKNEAG 63
Score = 28.0 bits (62), Expect = 0.73
Identities = 11/26 (42%), Positives = 13/26 (50%)
Query: 16 GPILAIEGVTAEDSGTYRCSSSNIGG 41
G L I V ED+G Y C + N G
Sbjct: 38 GSELHISNVRYEDTGAYTCIAKNEAG 63
>gnl|CDD|143183 cd04982, IgV_TCR_gamma, Immunoglobulin (Ig) variable (V) domain of
T-cell receptor (TCR) gamma chain. IgV_TCR_gamma:
immunoglobulin (Ig) variable (V) domain of the gamma
chain of gamma/delta T-cell receptors (TCRs). TCRs
mediate antigen recognition by T lymphocytes, and are
heterodimers consisting of alpha and beta chains or
gamma and delta chains. Each chain contains a variable
(V) and a constant (C) region. The majority of T cells
contain alpha/beta TCRs but a small subset contain
gamma/delta TCRs. Alpha/beta TCRs recognize antigen as
peptide fragments presented by major histocompatibility
complex (MHC) molecules. Gamma/delta TCRs recognize
intact protein antigens; they recognize protein antigens
directly and without antigen processing, and MHC
independently of the bound peptide. Gamma/delta T cells
can also be stimulated by non-peptide antigens such as
small phosphate- or amine-containing compounds. The
variable domain of gamma/delta TCRs is responsible for
antigen recognition and is located at the N-terminus of
the receptor.
Length = 116
Score = 29.3 bits (66), Expect = 0.34
Identities = 7/24 (29%), Positives = 12/24 (50%)
Query: 98 PGRTSSTSLVINPVGREDRGIYQC 121
S+++L I + +ED Y C
Sbjct: 71 DVGKSTSTLTIQNLEKEDSATYYC 94
Score = 25.8 bits (57), Expect = 7.3
Identities = 8/19 (42%), Positives = 11/19 (57%)
Query: 18 ILAIEGVTAEDSGTYRCSS 36
L I+ + EDS TY C+
Sbjct: 78 TLTIQNLEKEDSATYYCAY 96
>gnl|CDD|143167 cd00099, IgV, Immunoglobulin variable domain (IgV). IgV:
Immunoglobulin variable domain (IgV). Members of the
IgV family are components of immunoglobulin (Ig) and T
cell receptors. The basic structure of Ig molecules is
a tetramer of two light chains and two heavy chains
linked by disulfide bonds. In Ig, each chain is
composed of one variable domain (IgV) and one or more
constant domains (IgC); these names reflect the fact
that the variability in sequences is higher in the
variable domain than in the constant domain. Within the
variable domain, there are regions of even more
variability called the hypervariable or
complementarity-determining regions (CDRs) which are
responsible for antigen binding. A predominant feature
of most Ig domains is the disulfide bridge connecting 2
beta-sheets with a tryptophan residue packed against
the disulfide bond.
Length = 105
Score = 29.2 bits (66), Expect = 0.40
Identities = 8/20 (40%), Positives = 10/20 (50%)
Query: 18 ILAIEGVTAEDSGTYRCSSS 37
L I + EDS Y C+ S
Sbjct: 68 TLTISSLQPEDSAVYYCAVS 87
Score = 28.4 bits (64), Expect = 0.65
Identities = 23/95 (24%), Positives = 30/95 (31%), Gaps = 34/95 (35%)
Query: 64 LSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIPGR----------------------- 100
LSV S C + S Y I W+ RQ PG+
Sbjct: 1 LSVSEGESVTLSCTYSGSFSSYY-IFWY---RQKPGKGPELLIYISSNGSQYAGGVKGRF 56
Query: 101 -------TSSTSLVINPVGREDRGIYQCIARRSDG 128
SS +L I+ + ED +Y C S G
Sbjct: 57 SGTRDSSKSSFTLTISSLQPEDSAVYYCAVSLSGG 91
>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 = 28.1 bits (63), Expect = 0.44
Identities = 14/36 (38%), Positives = 18/36 (50%), Gaps = 4/36 (11%)
Query: 88 IAWFKDGRQI----PGRTSSTSLVINPVGREDRGIY 119
I W+K+G+ I + S SL I V ED G Y
Sbjct: 15 IQWYKNGKLISEKNRTKKSGHSLTIKDVTEEDAGNY 50
Score = 26.6 bits (59), Expect = 2.1
Identities = 11/22 (50%), Positives = 14/22 (63%)
Query: 11 RTRVLGPILAIEGVTAEDSGTY 32
RT+ G L I+ VT ED+G Y
Sbjct: 29 RTKKSGHSLTIKDVTEEDAGNY 50
>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 = 28.7 bits (64), Expect = 0.47
Identities = 15/33 (45%), Positives = 20/33 (60%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+GVT+EDSG Y + N G T +V + V
Sbjct: 60 LTIKGVTSEDSGKYSINVKNKYGGETVDVTVSV 92
>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 = 28.6 bits (64), Expect = 0.48
Identities = 14/33 (42%), Positives = 19/33 (57%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+GV++EDSG Y N G T +V + V
Sbjct: 60 LTIKGVSSEDSGKYGIVVKNKYGGETVDVTVSV 92
>gnl|CDD|217059 pfam02480, Herpes_gE, Alphaherpesvirus glycoprotein E.
Glycoprotein E (gE) of Alphaherpesvirus forms a complex
with glycoprotein I (gI) (pfam01688), functioning as an
immunoglobulin G (IgG) Fc binding protein. gE is
involved in virus spread but is not essential for
propagation.
Length = 437
Score = 30.1 bits (68), Expect = 0.48
Identities = 14/47 (29%), Positives = 17/47 (36%), Gaps = 1/47 (2%)
Query: 17 PILAIEGVTAEDSGTYRCSSSNIGGEATAE-VRLQVSTPYRVDVNPP 62
L+I T +DSG Y GEA V + V P P
Sbjct: 89 GGLSILNATEQDSGVYTLYVRGDPGEAHQSAVVVTVVGPAPDPRTPH 135
>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 = 28.1 bits (63), Expect = 0.49
Identities = 16/44 (36%), Positives = 23/44 (52%)
Query: 8 PGPRTRVLGPILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
P PR RV G L + V D+ Y+C++SN+ G A + V
Sbjct: 32 PDPRRRVDGGTLILSNVQPNDTAVYQCNASNVHGYLLANAFVHV 75
>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 = 28.1 bits (62), Expect = 0.51
Identities = 14/33 (42%), Positives = 18/33 (54%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+G T ED+G Y S+ N G + RL V
Sbjct: 43 LLIQGATKEDAGWYTVSAKNEAGIVSCTARLDV 75
>gnl|CDD|214650 smart00406, IGv, Immunoglobulin V-Type.
Length = 81
Score = 28.1 bits (63), Expect = 0.54
Identities = 8/17 (47%), Positives = 11/17 (64%)
Query: 19 LAIEGVTAEDSGTYRCS 35
L I + ED+GTY C+
Sbjct: 64 LTISNLRVEDTGTYYCA 80
Score = 27.3 bits (61), Expect = 1.2
Identities = 13/44 (29%), Positives = 17/44 (38%), Gaps = 2/44 (4%)
Query: 80 PYDSGPYLIAWFKDGRQIPGRTSST--SLVINPVGREDRGIYQC 121
+ Y +K I TS SL I+ + ED G Y C
Sbjct: 36 GSNGSSYYQESYKGRFTISKDTSKNDVSLTISNLRVEDTGTYYC 79
>gnl|CDD|143264 cd05856, Ig2_FGFRL1-like, Second immunoglobulin (Ig)-like domain
of fibroblast growth factor (FGF)
receptor_like-1(FGFRL1). Ig2_FGFRL1-like: second
immunoglobulin (Ig)-like domain of fibroblast growth
factor (FGF) receptor_like-1(FGFRL1). FGFRL1 is
comprised of a signal peptide, three extracellular
Ig-like modules, a transmembrane segment, and a short
intracellular domain. FGFRL1 is expressed
preferentially in skeletal tissues. Similar to FGF
receptors, the expressed protein interacts specifically
with heparin and with FGF2. FGFRL1 does not have a
protein tyrosine kinase domain at its C terminus;
neither does its cytoplasmic domain appear to interact
with a signaling partner. It has been suggested that
FGFRL1 may not have any direct signaling function, but
instead acts as a decoy receptor trapping FGFs and
preventing them from binding other receptors.
Length = 82
Score = 28.3 bits (63), Expect = 0.57
Identities = 16/41 (39%), Positives = 21/41 (51%), Gaps = 8/41 (19%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQVSTPYRVDV 59
L+++ + EDSG Y C SN GE A Y+VDV
Sbjct: 50 LSLKNLKPEDSGKYTCHVSNRAGEINAT--------YKVDV 82
>gnl|CDD|143180 cd04979, Ig_Semaphorin_C, Immunoglobulin (Ig)-like domain of
semaphorin. Ig_Semaphorin_C; Immunoglobulin (Ig)-like
domain in semaphorins. Semaphorins are transmembrane
protein that have important roles in a variety of
tissues. Functionally, semaphorins were initially
characterized for their importance in the development
of the nervous system and in axonal guidance. Later
they have been found to be important for the formation
and functioning of the cardiovascular, endocrine,
gastrointestinal, hepatic, immune, musculoskeletal,
renal, reproductive, and respiratory systems.
Semaphorins function through binding to their receptors
and transmembrane semaphorins also serves as receptors
themselves. Although molecular mechanism of semaphorins
is poorly understood, the Ig-like domains may involve
in ligand binding or dimerization.
Length = 89
Score = 28.1 bits (63), Expect = 0.59
Identities = 11/30 (36%), Positives = 13/30 (43%)
Query: 7 LPGPRTRVLGPILAIEGVTAEDSGTYRCSS 36
P R V L I V+ D+G Y C S
Sbjct: 41 EPEERLLVTEDGLLIRSVSPADAGVYTCQS 70
Score = 25.1 bits (55), Expect = 9.4
Identities = 9/44 (20%), Positives = 15/44 (34%), Gaps = 8/44 (18%)
Query: 88 IAWFKDGRQIPGRTSSTS--------LVINPVGREDRGIYQCIA 123
+ W G + + L+I V D G+Y C +
Sbjct: 27 VVWLFQGGPLQRKEEPEERLLVTEDGLLIRSVSPADAGVYTCQS 70
>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 = 28.1 bits (63), Expect = 0.72
Identities = 13/45 (28%), Positives = 17/45 (37%), Gaps = 9/45 (20%)
Query: 88 IAWFKDGRQIPG---------RTSSTSLVINPVGREDRGIYQCIA 123
I W KDG+ R +L++ V D G Y CI
Sbjct: 26 ITWLKDGKPFKKEHRIGGYKVRKKKWTLILESVVPSDSGKYTCIV 70
Score = 26.2 bits (58), Expect = 2.9
Identities = 14/41 (34%), Positives = 16/41 (39%), Gaps = 8/41 (19%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQVSTPYRVDV 59
L +E V DSG Y C N G Y+VDV
Sbjct: 53 LILESVVPSDSGKYTCIVENKYGSINHT--------YKVDV 85
>gnl|CDD|143178 cd04977, Ig1_NCAM-1_like, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1 and similar
proteins. Ig1_NCAM-1 like: first immunoglobulin
(Ig)-like domain of neural cell adhesion molecule
NCAM-1. NCAM-1 plays important roles in the development
and regeneration of the central nervous system, in
synaptogenesis and neural migration. NCAM mediates
cell-cell and cell-substratum recognition and adhesion
via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as three
major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate dimerization
of NCAM molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain. Also included in this group is
NCAM-2 (also known as OCAM/mamFas II and RNCAM). NCAM-2
is differentially expressed in the developing and mature
olfactory epithelium (OE).
Length = 92
Score = 27.9 bits (62), Expect = 0.80
Identities = 22/94 (23%), Positives = 43/94 (45%), Gaps = 13/94 (13%)
Query: 56 RVDVNPPLLSVHLDGSANFQCEITPYDSGPYLIAWFK-DGRQIPGRTS---------STS 105
+VD+ P + + S F C++ P I+WF +G ++ + ++
Sbjct: 2 QVDIVPSQGEISVGESKFFLCQVI---GEPKDISWFSPNGEKLVTQQQISVVQNDDVRST 58
Query: 106 LVINPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
L I ED GIY+C+A + G ++ + L++
Sbjct: 59 LTIYNANIEDAGIYKCVATDAKGTESEATVNLKI 92
Score = 25.9 bits (57), Expect = 4.5
Identities = 12/34 (35%), Positives = 20/34 (58%), Gaps = 1/34 (2%)
Query: 19 LAIEGVTAEDSGTYRCSSSNI-GGEATAEVRLQV 51
L I ED+G Y+C +++ G E+ A V L++
Sbjct: 59 LTIYNANIEDAGIYKCVATDAKGTESEATVNLKI 92
>gnl|CDD|165149 PHA02785, PHA02785, IL-beta-binding protein; Provisional.
Length = 326
Score = 29.2 bits (65), Expect = 0.84
Identities = 34/141 (24%), Positives = 53/141 (37%), Gaps = 29/141 (20%)
Query: 11 RTRVLGPILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQVSTPYRVDVNPPLLS----- 65
+ R G I+ IE V D+G Y C I G+ T V V R + PP +
Sbjct: 172 KQRTPG-IITIEDVRKNDAGYYTCVLKYIYGDKTYNVTRIVKLEVRDRIIPPTMQLPEGV 230
Query: 66 -VHLDGSANFQCEIT----PYDSGPYLIA----WFKDGRQIPGRTS-------------- 102
+ + C ++ D+ + I+ + +D GR S
Sbjct: 231 VTSIGSNLTIACRVSLRPPTTDADVFWISNGMYYEEDDEDGDGRISVANKIYTTDKRRVI 290
Query: 103 STSLVINPVGREDRGIYQCIA 123
++ L INPV ED + C+A
Sbjct: 291 TSRLNINPVKEEDATTFTCMA 311
>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 = 27.9 bits (62), Expect = 0.87
Identities = 12/34 (35%), Positives = 17/34 (50%)
Query: 18 ILAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
IEG ED G Y + +N GE A + ++V
Sbjct: 53 SFVIEGAEREDEGVYTITVTNPVGEDHASLFVKV 86
>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 = 28.0 bits (62), Expect = 0.99
Identities = 15/35 (42%), Positives = 17/35 (48%), Gaps = 1/35 (2%)
Query: 106 LVI-NPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
LVI NP D G YQC+A G V A L+
Sbjct: 60 LVINNPQKARDAGSYQCLAINRCGTVVSREANLRF 94
>gnl|CDD|143193 cd05716, Ig_pIgR, Immunoglobulin (Ig)-like domain in the polymeric
Ig receptor (pIgR). Ig_pIgR: Immunoglobulin (Ig)-like
domain in the polymeric Ig receptor (pIgR). pIgR
delivers dimeric IgA and pentameric IgM to mucosal
secretions. Polymeric immunoglobulin (pIgs) are the
first defense against pathogens and toxins. IgA and IgM
can form polymers via an 18-residue extension at their
c-termini referred to as the tailpiece. pIgR transports
pIgs across mucosal epithelia into mucosal secretions.
Human pIgR is a glycosylated type I transmembrane
protein, comprised of a 620 residue extracellular
region, a 23 residue transmembrane region, and a 103
residue cytoplasmic tail. The extracellular region
contains five domains that share sequence similarity
with Ig variable (v) regions.
Length = 98
Score = 27.8 bits (62), Expect = 1.0
Identities = 14/82 (17%), Positives = 25/82 (30%), Gaps = 24/82 (29%)
Query: 63 LLSVHLDGSANFQCEITPY--------------------DSGPYLIAWFKDGR--QIPGR 100
+++ L GS C P S + +GR
Sbjct: 1 VVTGELGGSVTIPCPYPPKNRSYEKYWCKWGSAGCCLIIVSEGS-VQSQYEGRVSLTDDP 59
Query: 101 TSST-SLVINPVGREDRGIYQC 121
+ ++ +N + +ED G Y C
Sbjct: 60 DNGVFTVTLNQLRKEDAGWYWC 81
Score = 27.4 bits (61), Expect = 1.4
Identities = 7/31 (22%), Positives = 13/31 (41%), Gaps = 2/31 (6%)
Query: 4 LLVLPGPRTRVLGPILAIEGVTAEDSGTYRC 34
+ + P V + + + ED+G Y C
Sbjct: 53 VSLTDDPDNGVF--TVTLNQLRKEDAGWYWC 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 = 1.1
Identities = 18/54 (33%), Positives = 22/54 (40%), Gaps = 18/54 (33%)
Query: 85 PYLIAWFKDG----------RQIPGRTSSTSLVINPV-----GREDRGIYQCIA 123
P I W KDG RQ + SL+I V + D G YQC+A
Sbjct: 28 PPKIEWKKDGVLLNLVSDERRQQ---LPNGSLLITSVVHSKHNKPDEGFYQCVA 78
>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 = 27.4 bits (61), Expect = 1.1
Identities = 14/50 (28%), Positives = 19/50 (38%), Gaps = 13/50 (26%)
Query: 88 IAWFKDGRQIPGRTSSTSLV-------------INPVGREDRGIYQCIAR 124
I WF+DG + G T S L+ I P + + C AR
Sbjct: 17 IIWFRDGEVLDGATYSKELLKDGKRETTVSTLPITPSDHDTGRTFTCRAR 66
>gnl|CDD|143242 cd05765, Ig_3, Subgroup of the immunoglobulin (Ig) superfamily.
Ig_3: subgroup of the immunoglobulin (Ig) domain found
in the Ig superfamily. The Ig superfamily is a
heterogenous group of proteins, built on a common fold
comprised of a sandwich of two beta sheets. Members of
the Ig superfamily are components of immunoglobulin,
neuroglia, cell surface glycoproteins, such as T-cell
receptors, CD2, CD4, CD8, and membrane glycoproteins,
such as butyrophilin and chondroitin sulfate
proteoglycan core protein. A predominant feature of most
Ig domains is a disulfide bridge connecting the two
beta-sheets with a tryptophan residue packed against the
disulfide bond.
Length = 81
Score = 27.1 bits (60), Expect = 1.2
Identities = 22/75 (29%), Positives = 31/75 (41%), Gaps = 21/75 (28%)
Query: 70 GSANFQCEITPYDSGPYLIAWFKDGRQIPGR----------------TSSTSLVINPVGR 113
+A+F C++T P I W K Q+ G+ T+ LVI
Sbjct: 2 ETASFHCDVTGRP--PPEITWEK---QVHGKENLIMRPNHVRGNVVVTNIGQLVIYNAQP 56
Query: 114 EDRGIYQCIARRSDG 128
+D G+Y C AR S G
Sbjct: 57 QDAGLYTCTARNSGG 71
>gnl|CDD|143273 cd05865, Ig1_NCAM-1, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1. Ig1_NCAM-1: first
immunoglobulin (Ig)-like domain of neural cell adhesion
molecule NCAM-1. NCAM-1 plays important roles in the
development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as three
major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate dimerization
of NCAM molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain.
Length = 96
Score = 27.3 bits (60), Expect = 1.4
Identities = 20/95 (21%), Positives = 44/95 (46%), Gaps = 12/95 (12%)
Query: 56 RVDVNPPLLSVHLDGSANFQCEITPYDSGPYLIAWFK-DGRQI-PGRTS---------ST 104
+VD+ P + + S F C++ ++ I+WF +G ++ P + S+
Sbjct: 2 QVDIVPSQGEISVGESKFFLCQVAG-EAKDKDISWFSPNGEKLTPNQQRISVVRNDDYSS 60
Query: 105 SLVINPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
+L I +D GIY+C+ D ++ + +++
Sbjct: 61 TLTIYNANIDDAGIYKCVVSNEDEGESEATVNVKI 95
Score = 25.8 bits (56), Expect = 5.6
Identities = 12/34 (35%), Positives = 19/34 (55%), Gaps = 1/34 (2%)
Query: 19 LAIEGVTAEDSGTYRCSSSNI-GGEATAEVRLQV 51
L I +D+G Y+C SN GE+ A V +++
Sbjct: 62 LTIYNANIDDAGIYKCVVSNEDEGESEATVNVKI 95
>gnl|CDD|235911 PRK07027, PRK07027, cobalamin biosynthesis protein CbiG;
Provisional.
Length = 126
Score = 27.7 bits (62), Expect = 1.5
Identities = 11/25 (44%), Positives = 16/25 (64%)
Query: 2 EPLLVLPGPRTRVLGPILAIEGVTA 26
EP +L PR R++ P A++GVT
Sbjct: 96 EPCALLAAPRGRLILPKTALDGVTV 120
>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 = 26.8 bits (59), Expect = 1.5
Identities = 15/37 (40%), Positives = 17/37 (45%), Gaps = 5/37 (13%)
Query: 88 IAWFKDGRQIPGRTSST-----SLVINPVGREDRGIY 119
+ W KDG + S SLVI V ED GIY
Sbjct: 15 VIWLKDGLPAAEKCSRYHVDGYSLVIKDVTEEDAGIY 51
>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 = 27.0 bits (60), Expect = 1.6
Identities = 13/27 (48%), Positives = 16/27 (59%), Gaps = 1/27 (3%)
Query: 105 SLVI-NPVGREDRGIYQCIARRSDGDV 130
+LVI NP +D G YQC+A G V
Sbjct: 59 NLVISNPSKAKDAGRYQCLASNIVGTV 85
>gnl|CDD|143191 cd05714, Ig_CSPGs_LP, Immunoglobulin (Ig)-like domain of
chondroitin sulfate proteoglycans (CSPGs), human
cartilage link protein (LP) and similar proteins.
Ig_CSPGs_LP: immunoglobulin (Ig)-like domain similar to
that found in chondroitin sulfate proteoglycans (CSPGs)
and human cartilage link protein (LP). Included in
this group are the CSPGs aggrecan, versican, and
neurocan. In CSPGs this Ig-like domain is followed by
hyaluronan (HA)-binding tandem repeats, and a
C-terminal region with epidermal growth factor-like,
lectin-like, and complement regulatory protein-like
domains. Separating these N- and C-terminal regions is
a nonhomologous glycosaminoglycan attachment region. In
cartilage, aggrecan forms cartilage link protein
stabilized aggregates with hyaluronan (HA). These
aggregates contribute to the tissue's load bearing
properties. Aggrecan and versican have a wide
distribution in connective tissue and extracellular
matrices. Neurocan is localized almost exclusively in
nervous tissue. Aggregates having other CSPGs
substituting for aggrecan may contribute to the
structural integrity of many different tissues. There
is considerable evidence that HA-binding CSPGs are
involved in developmental processes in the central
nervous system. Members of the vertebrate HPLN
(hyaluronan/HA and proteoglycan binding link) protein
family are physically linked adjacent to CSPG genes.
Length = 106
Score = 27.2 bits (61), Expect = 1.7
Identities = 9/16 (56%), Positives = 10/16 (62%)
Query: 19 LAIEGVTAEDSGTYRC 34
L I + EDSG YRC
Sbjct: 70 LVITDLRLEDSGRYRC 85
>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 = 27.4 bits (61), Expect = 1.7
Identities = 10/33 (30%), Positives = 15/33 (45%), Gaps = 1/33 (3%)
Query: 19 LAIEGVTAED-SGTYRCSSSNIGGEATAEVRLQ 50
L I D +Y C++ N G TA + L+
Sbjct: 66 LTISNTQESDFQTSYNCTAWNSFGSGTAIISLE 98
>gnl|CDD|143218 cd05741, Ig_CEACAM_D1_like, First immunoglobulin (Ig)-like domain
of carcinoembryonic antigen (CEA) related cell adhesion
molecule (CEACAM) and similar proteins.
Ig_CEACAM_D1_like : immunoglobulin (IG)-like domain 1
in carcinoembryonic antigen (CEA) related cell adhesion
molecule (CEACAM) protein subfamily-like. 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 D1 Ig-like domain. Also belonging to this group is
the N-terminal immunoglobulin (Ig)-like domain of the
signaling lymphocyte activation molecule (SLAM) family,
CD84-like family. The SLAM family is a group of
immune-cell specific receptors that can regulate both
adaptive and innate immune responses. SLAM family
proteins are organized as an extracellular domain with
having two or four Ig-like domains, a single
transmembrane segment, and a cytoplasmic region having
tyr-based motifs. The extracellular domain is organized
as a membrane-distal Ig variable (IgV) domain that is
responsible for ligand recognition and a
membrane-proximal truncated Ig constant-2 (IgC2)
domain.
Length = 92
Score = 26.9 bits (60), Expect = 2.2
Identities = 13/34 (38%), Positives = 18/34 (52%), Gaps = 1/34 (2%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEA-TAEVRLQV 51
L I+ +T EDSGTY + G A+ L+V
Sbjct: 59 LLIQNLTKEDSGTYTLQIISTNGVTENAKFFLRV 92
>gnl|CDD|143238 cd05761, Ig2_Necl-1-4_like, Second immunoglobulin (Ig)-like domain
of the nectin-like molecules Necl-1 - Necl-4 (also known
as cell adhesion molecules CADM3, CADM1, CADM2, and
CADM4, respectively). Ig2_Necl-1-4_like: domain similar
to the second immunoglobulin (Ig)-like domain of the
nectin-like molecules Necl-1 (also known as cell
adhesion molecule 3 (CADM3)), Necl-2 (CADM1), Necl-3
(CADM2) and Necl-4 (CADM4). These nectin-like molecules
have similar domain structures to those of nectins. At
least five nectin-like molecules have been identified
(Necl-1 - Necl-5). These have an extracellular region
containing three Ig-like domains, one transmembrane
region, and one cytoplasmic region. The N-terminal
Ig-like domain of the extracellular region belongs to
the V-type subfamily of Ig domains, is essential to
cell-cell adhesion, and plays a part in the interaction
with the envelope glycoprotein D of various viruses.
Necl-1 and Necl-2 have Ca(2+)-independent homophilic and
heterophilic cell-cell adhesion activity. Necl-1 is
specifically expressed in neural tissue and is important
to the formation of synapses, axon bundles, and
myelinated axons. Necl-2 is expressed in a wide variety
of tissues, and is a putative tumour suppressor gene,
which is downregulated in aggressive neuroblastoma.
Necl-3 has been shown to accumulate in tissues of the
central and peripheral nervous system, where it is
expressed in ependymal cells and myelinated axons. It
is observed at the interface between the axon shaft and
the myelin sheath. Necl-4 is expressed on Schwann cells,
and plays a key part in initiating peripheral nervous
system (PNS) myelination. Necl-4 participates in
cell-cell adhesion and is proposed to play a role in
tumor suppression.
Length = 82
Score = 26.5 bits (59), Expect = 2.2
Identities = 13/48 (27%), Positives = 17/48 (35%), Gaps = 12/48 (25%)
Query: 88 IAWFKDGRQIPGRTSS-----------TSLVINPVGREDRG-IYQCIA 123
I WFK +++ G TS + V RED G C
Sbjct: 17 IRWFKGDKELKGVKLKEEDENGKTFTVTSSLRFQVDREDDGAPIICRV 64
>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 = 26.4 bits (58), Expect = 2.5
Identities = 13/39 (33%), Positives = 18/39 (46%), Gaps = 2/39 (5%)
Query: 7 LPGPRTRVL--GPILAIEGVTAEDSGTYRCSSSNIGGEA 43
L RT+ L L ++ V D G Y C++ N G A
Sbjct: 24 LSPNRTKKLNNNKTLQLDNVLESDDGEYVCTAENSEGSA 62
Score = 26.4 bits (58), Expect = 2.5
Identities = 15/48 (31%), Positives = 22/48 (45%), Gaps = 5/48 (10%)
Query: 88 IAWFK-DGRQIPGRTS----STSLVINPVGREDRGIYQCIARRSDGDV 130
+ W + DG P RT + +L ++ V D G Y C A S+G
Sbjct: 15 VHWDRIDGPLSPNRTKKLNNNKTLQLDNVLESDDGEYVCTAENSEGSA 62
>gnl|CDD|214720 smart00557, IG_FLMN, Filamin-type immunoglobulin domains. These
form a rod-like structure in the actin-binding
cytoskeleton protein, filamin. The C-terminal repeats
of filamin bind beta1-integrin (CD29).
Length = 93
Score = 26.4 bits (59), Expect = 2.5
Identities = 15/56 (26%), Positives = 25/56 (44%), Gaps = 3/56 (5%)
Query: 44 TAEVRLQVSTPYRVDVNPPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIPG 99
E+ ++V+ P V P + + DG+ + TP + G Y + G IPG
Sbjct: 31 GGELEVEVTGPSGKKV-PVEVKDNGDGT--YTVSYTPTEPGDYTVTVKFGGEHIPG 83
>gnl|CDD|143300 cd05892, Ig_Myotilin_C, C-terminal immunoglobulin (Ig)-like
domain of myotilin. Ig_Myotilin_C: C-terminal
immunoglobulin (Ig)-like domain of myotilin. Mytolin
belongs to the palladin-myotilin-myopalladin family.
Proteins belonging to the latter family contain
multiple Ig-like domains and function as scaffolds,
modulating actin cytoskeleton. Myotilin is most
abundant in skeletal and cardiac muscle, and is
involved in maintaining sarcomere integrity. It binds
to alpha-actinin, filamin and actin. Mutations in
myotilin lead to muscle disorders.
Length = 75
Score = 26.5 bits (58), Expect = 2.6
Identities = 14/33 (42%), Positives = 18/33 (54%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I+ V +D+G Y S+ N G AT RL V
Sbjct: 43 LLIKNVNKKDAGWYTVSAVNEAGVATCHARLDV 75
>gnl|CDD|185549 PTZ00311, PTZ00311, phosphoenolpyruvate carboxykinase; Provisional.
Length = 561
Score = 27.7 bits (62), Expect = 2.7
Identities = 14/39 (35%), Positives = 20/39 (51%), Gaps = 5/39 (12%)
Query: 71 SANFQCEITPYDSGPYLIAWFKDGRQIPGRTSSTSLVIN 109
+F + T Y++G FK R I G TS TS+ +N
Sbjct: 176 GEDFVPDFTIYNAGE-----FKANRLIEGVTSETSVALN 209
>gnl|CDD|143307 cd05899, IgV_TCR_beta, Immunoglobulin (Ig) variable (V) domain of
T-cell receptor (TCR) bet a chain. IgV_TCR_beta:
immunoglobulin (Ig) variable domain of the beta 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 includes the variable domain of the alpha chain of
alpha/beta 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 = 110
Score = 26.9 bits (60), Expect = 2.7
Identities = 12/27 (44%), Positives = 14/27 (51%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATA 45
L I+ EDS Y C+SS GG A
Sbjct: 74 LTIKSAEPEDSAVYLCASSLGGGADEA 100
>gnl|CDD|117544 pfam08978, Reoviridae_Vp9, Reoviridae VP9. This domain is found in
various VP9 viral outer-coat proteins. It has no known
function.
Length = 280
Score = 27.3 bits (60), Expect = 3.0
Identities = 10/26 (38%), Positives = 13/26 (50%)
Query: 6 VLPGPRTRVLGPILAIEGVTAEDSGT 31
+L G R G + IEGVT S +
Sbjct: 218 ILEGDRAPPTGLYVDIEGVTVSTSAS 243
>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 = 3.1
Identities = 22/99 (22%), Positives = 31/99 (31%), Gaps = 32/99 (32%)
Query: 57 VDVNPPLLSVHLDGSANFQCEITPYDSGPYLIAWFKDGRQIPGR---------------- 100
V +P LSV + C + S Y + W+ RQ PG+
Sbjct: 1 VTQSPQSLSVQEGENVTLNCNYS--TSTFYYLFWY---RQYPGQGPQFLIYISSNGEEKE 55
Query: 101 -----------TSSTSLVINPVGREDRGIYQCIARRSDG 128
S+SL I+ D +Y C S G
Sbjct: 56 KGRFSATLDKSRKSSSLHISAAQLSDSAVYFCALSESGG 94
>gnl|CDD|221814 pfam12863, DUF3821, Domain of unknown function (DUF3821). This is
a domain largely confined to sequences from
Methanomicrobiales found on putative lipases. The
function is not known.
Length = 203
Score = 27.0 bits (60), Expect = 3.1
Identities = 7/32 (21%), Positives = 12/32 (37%)
Query: 82 DSGPYLIAWFKDGRQIPGRTSSTSLVINPVGR 113
+G IAW+ G T S+ ++
Sbjct: 19 VNGGTTIAWWASGSSPGTGTPDDSITVSDPTN 50
>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 = 26.2 bits (58), Expect = 3.7
Identities = 6/25 (24%), Positives = 11/25 (44%)
Query: 11 RTRVLGPILAIEGVTAEDSGTYRCS 35
+ + ++I + ED G Y C
Sbjct: 56 NSSLEDATISISNLRLEDEGNYICE 80
>gnl|CDD|143269 cd05861, Ig1_PDGFR-alphabeta, Frst immunoglobulin (Ig)-like
domain of platelet-derived growth factor (PDGF)
receptors (R), alpha (CD140a), and beta (CD140b).
Ig1_PDGFR-alphabeta: The first immunoglobulin (Ig)-like
domain of platelet-derived growth factor (PDGF)
receptors (R), alpha (CD140a), and beta (CD140b). PDGF
is a potent mitogen for connective tissue cells.
PDGF-stimulated processes are mediated by three
different PDGFs (PDGF-A,-B, and C). PDGFRalpha binds to
all three PDGFs, whereas the PDGFRbeta binds only to
PDGF-B. PDGFRs alpha and beta have similar
organization: an extracellular component with five
Ig-like domains, a transmembrane segment, and a
cytoplasmic portion having protein tyrosine kinase
activity. In mice, PDGFRalpha and PDGFRbeta are
essential for normal development.
Length = 84
Score = 26.0 bits (57), Expect = 3.8
Identities = 11/31 (35%), Positives = 16/31 (51%), Gaps = 4/31 (12%)
Query: 18 ILAIEGVTAEDSGTYRCSSSNIGGEATAEVR 48
L T EDSGTY C++ E+T + +
Sbjct: 47 TLTFPHATVEDSGTYECAAH----ESTQDQK 73
>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 = 26.1 bits (57), Expect = 4.0
Identities = 16/42 (38%), Positives = 21/42 (50%), Gaps = 7/42 (16%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQVSTPYRVDVN 60
L VT D+G Y+C +SN EV S PY ++VN
Sbjct: 57 LTFNNVTRSDTGHYQCEASN-------EVSNMTSDPYILNVN 91
>gnl|CDD|143285 cd05877, Ig_LP_like, Immunoglobulin (Ig)-like domain of human
cartilage link protein (LP). Ig_LP_like: immunoglobulin
(Ig)-like domain similar to that that found in human
cartilage link protein (LP). In cartilage,
chondroitin-keratan sulfate proteoglycan (CSPG),
aggrecan, forms cartilage link protein stabilized
aggregates with hyaluronan (HA). These aggregates
contribute to the tissue's load bearing properties.
Aggregates having other CSPGs substituting for aggrecan
may contribute to the structural integrity of many
different tissues. Members of the vertebrate HPLN
(hyaluronan/HA and proteoglycan binding link) protein
family are physically linked adjacent to CSPG genes.
Length = 106
Score = 26.1 bits (58), Expect = 4.5
Identities = 10/33 (30%), Positives = 16/33 (48%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I + ED G YRC + + + V L++
Sbjct: 70 LVITDLRLEDYGRYRCEVIDGLEDESVVVALRL 102
>gnl|CDD|143293 cd05885, Ig2_Necl-4, Second immunoglobulin (Ig)-like domain of
nectin-like molecule-4 (Necl-4, also known as cell
adhesion molecule 4 (CADM4)). Ig2_Necl-4: second
immunoglobulin (Ig)-like domain of nectin-like
molecule-4 (Necl-4, also known as cell adhesion
molecule 4 (CADM4)). Nectin-like molecules have similar
domain structures to those of nectins. At least five
nectin-like molecules have been identified
(Necl-1-Necl-5). These have an extracellular region
containing three Ig-like domains, one transmembrane
region, and one cytoplasmic region. Ig domains are
likely to participate in ligand binding and recognition.
Necl-4 is expressed on Schwann cells, and plays a key
part in initiating peripheral nervous system (PNS)
myelination. In injured peripheral nerve cells, the
mRNA signal for both Necl-4 and Necl-5 was observed to
be elevated. Necl-4 participates in cell-cell adhesion
and is proposed to play a role in tumor suppression.
Length = 80
Score = 25.7 bits (56), Expect = 4.5
Identities = 10/49 (20%), Positives = 22/49 (44%), Gaps = 9/49 (18%)
Query: 78 ITPYDSGPYLIAWFKDGRQIPGRTSS---------TSLVINPVGREDRG 117
++P + W++D +++ G S ++ + PV R+D G
Sbjct: 7 LSPRSKPAATLRWYRDRKELKGVISQQENGKTVSVSNTIRFPVDRKDDG 55
>gnl|CDD|165016 PHA02633, PHA02633, hypothetical protein; Provisional.
Length = 63
Score = 25.3 bits (55), Expect = 4.8
Identities = 11/30 (36%), Positives = 16/30 (53%), Gaps = 1/30 (3%)
Query: 95 RQIPGRTSSTSLVINPVGREDRGIYQCIAR 124
R I + L++NP + D GIY CI +
Sbjct: 10 RIILIDNCNNMLILNPT-QSDSGIYMCITK 38
>gnl|CDD|143188 cd05711, Ig_FcalphaRI, Immunoglobulin (IG)-like domain of of
FcalphaRI. IG_FcalphaRI : immunoglobulin (IG)-like
domain of of FcalphaRI. FcalphaRI (CD89) is an
IgA-specific receptor that is expressed on monocytes,
eosinophils, neutrophils and macrophages. FcalphaRI
mediates IgA-induced immune effector responses such as
phagocytosis, antibody-dependent cell-mediated
cytotoxicity and respiratory burst. Both monomeric and
dimeric IgA can bind to FcalphaRI, and monomeric or
dimeric IgA immune complexes can activate phagocytosis
and other immune responses through the clustering of
FcalphaRI. The Fc RI ectodomain is comprised of two
Ig-like domains oriented at about 90 degree to each
another.
Length = 94
Score = 25.5 bits (56), Expect = 5.7
Identities = 10/34 (29%), Positives = 14/34 (41%)
Query: 1 MEPLLVLPGPRTRVLGPILAIEGVTAEDSGTYRC 34
+P+L L + VT +GTYRC
Sbjct: 39 SKPVLHLYEKHHGGFQASFPLGPVTPAHAGTYRC 72
>gnl|CDD|143305 cd05897, Ig2_IL1R2_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor-2 (IL1R2). Ig2_IL1R2_like:
domain similar to the second immunoglobulin (Ig)-like
domain of interleukin-1 receptor-2 (IL1R2). IL-1 alpha
and IL-1 beta are cytokines which participate in the
regulation of inflammation, immune responses, and
hematopoiesis. These cytokines bind to the IL-1 receptor
type 1 (IL1R1), which is activated on additional
association with an accessory protein, IL1RAP. IL-1 also
binds the type II (IL1R2) represented in this group.
Mature IL1R2 consists of three IG-like domains, a
transmembrane domain, and a short cytoplasmic domain. It
lacks the large cytoplasmic domain of Mature IL1R1, and
does not initiate signal transduction. A naturally
occurring cytokine IL-1RA (IL-1 receptor antagonist) is
widely expressed and binds to IL-1 receptors, inhibiting
the binding of IL-1 alpha and IL-1 beta.
Length = 95
Score = 25.5 bits (56), Expect = 6.2
Identities = 12/41 (29%), Positives = 15/41 (36%), Gaps = 7/41 (17%)
Query: 88 IAWFKDG-------RQIPGRTSSTSLVINPVGREDRGIYQC 121
+ W+KD + ST L I V D G Y C
Sbjct: 32 LQWYKDSVLLDKDNEKFYSLKGSTYLHIIDVSLNDSGYYTC 72
>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 = 25.4 bits (55), Expect = 6.3
Identities = 11/35 (31%), Positives = 16/35 (45%), Gaps = 1/35 (2%)
Query: 105 SLVINPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
SL I + + D G Y C A + G A + L +
Sbjct: 40 SLEILNITKLDEGSYTCFAENNRGK-ANSTGVLSV 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 = 25.1 bits (55), Expect = 6.3
Identities = 13/33 (39%), Positives = 16/33 (48%)
Query: 19 LAIEGVTAEDSGTYRCSSSNIGGEATAEVRLQV 51
L I VT D G Y C + N G+A + L V
Sbjct: 41 LEILNVTKSDEGKYTCFAENFFGKANSTGSLSV 73
>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 = 25.4 bits (55), Expect = 6.4
Identities = 18/64 (28%), Positives = 26/64 (40%), Gaps = 13/64 (20%)
Query: 79 TPYDSGPYLIAWFKDGRQIP-------------GRTSSTSLVINPVGREDRGIYQCIARR 125
T + P ++ W K+ R I G ++L I P RED G + C A
Sbjct: 9 TAHGEKPIIVRWEKEDRIINPEMSRYLVSTKEVGDEVISTLQILPTVREDSGFFSCHAIN 68
Query: 126 SDGD 129
S G+
Sbjct: 69 SYGE 72
>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 = 25.0 bits (54), Expect = 6.5
Identities = 20/59 (33%), Positives = 26/59 (44%), Gaps = 9/59 (15%)
Query: 88 IAWFKDGRQIP----GR---TSSTSLVINPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
I WFKD + GR S +L I D+G Y+C+A S G + SA L
Sbjct: 15 ITWFKDFLPVDTTSNGRIKQLRSGALQIENSEESDQGKYECVATNSAG--TRYSAPANL 71
>gnl|CDD|143310 cd05902, Ig_Neurocan, Immunoglobulin (Ig)-like domain of the
chondroitin sulfate proteoglycan core protein (CSPG),
neurocan. Ig_Neurocan: immunoglobulin (Ig)-like domain
of the chondroitin sulfate proteoglycan core protein
(CSPG), neurocan. In CSPGs, the Ig-like domain is
followed by hyaluronan (HA)-binding tandem repeats, and
a C-terminal region with epidermal growth factor-like,
lectin-like, and complement regulatory protein-like
domains. Separating these N- and C-terminal regions is
a nonhomologous glycosaminoglycan attachment region. In
cartilage, the CSPG aggrecan (not included in this
group) forms cartilage link protein stabilized
aggregates with HA. These aggregates contribute to the
tissue's load bearing properties. Unlike aggrecan which
is widely distributed in connective tissue and
extracellular matrices, neurocan is localized almost
exclusively in nervous tissue. Aggregates having other
CSPGs substituting for aggrecan may contribute to the
structural integrity of many different tissues. Members
of the vertebrate HPLN (hyaluronan/HA and proteoglycan
binding link) protein family are physically linked
adjacent to CSPG genes.
Length = 110
Score = 25.6 bits (56), Expect = 6.8
Identities = 11/30 (36%), Positives = 14/30 (46%)
Query: 5 LVLPGPRTRVLGPILAIEGVTAEDSGTYRC 34
+ LPG L + + DSGTYRC
Sbjct: 60 VSLPGYPKNRYNASLVLSRLRYSDSGTYRC 89
>gnl|CDD|143280 cd05872, Ig_Sema4B_like, Immunoglobulin (Ig)-like domain of the
class IV semaphorin Sema4B. Ig_Sema4B_like;
Immunoglobulin (Ig)-like domain of Sema4B_like. Sema4B
is a Class IV semaphorin. Semaphorins are classified
based on structural features additional to the Sema
domain. Sema4B has extracellular Sema and Ig domains, a
transmembrane domain and a short cytoplasmic domain.
Sema4B has been shown to preferentially regulate the
development of the postsynaptic specialization at the
glutamatergic synapses. This cytoplasmic domain
includes a PDZ-binding motif upon which the synaptic
localization of Sem4B is dependent. Sema4B is a ligand
of CLCP1, CLCP1 was identified in an expression
profiling analysis, which compared a highly metastic
lung cancer subline with its low metastic parental
line. Sema4B was shown to promote CLCP1 endocytosis,
and their interaction is a potential target for
therapeutic intervention of metastasis.
Length = 85
Score = 25.1 bits (55), Expect = 6.9
Identities = 12/31 (38%), Positives = 14/31 (45%)
Query: 6 VLPGPRTRVLGPILAIEGVTAEDSGTYRCSS 36
+ RV L I + E SGTYRC S
Sbjct: 36 LNAQFSYRVGTDGLLILVTSPEHSGTYRCYS 66
>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 = 25.3 bits (55), Expect = 6.9
Identities = 15/36 (41%), Positives = 20/36 (55%), Gaps = 1/36 (2%)
Query: 105 SLVI-NPVGREDRGIYQCIARRSDGDVAQGSAELQL 139
+L+I NP +D G YQC+A S G + A LQ
Sbjct: 59 NLIISNPSEVKDSGRYQCLATNSIGSILSREALLQF 94
>gnl|CDD|216630 pfam01654, Bac_Ubq_Cox, Bacterial Cytochrome Ubiquinol Oxidase.
This family are the alternative oxidases found in many
bacteria which oxidise ubiquinol and reduce oxygen as
part of the electron transport chain. This family is
the subunit I of the oxidase E. coli has two copies of
the oxidase, bo and bd', both of which are represented
here In some nitrogen fixing bacteria, e.g. Klebsiella
pneumoniae this oxidase is responsible for removing
oxygen in microaerobic conditions, making the oxidase
required for nitrogen fixation. This subunit binds a
single b-haem, through ligands at His186 and Met393
(using SW:P11026 numbering). In addition His19 is a
ligand for the haem b found in subunit II.
Length = 432
Score = 26.3 bits (59), Expect = 8.1
Identities = 9/13 (69%), Positives = 10/13 (76%)
Query: 14 VLGPILAIEGVTA 26
V G LAIEG+TA
Sbjct: 85 VFGAPLAIEGLTA 97
>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 = 25.4 bits (55), Expect = 8.3
Identities = 15/44 (34%), Positives = 23/44 (52%), Gaps = 6/44 (13%)
Query: 9 GPRTRVLGPILAIEGVTAEDSGTYRCSSSNIGGEAT-AEVRLQV 51
G R+R L I ED+G YRC +++ G+ A V L++
Sbjct: 53 GVRSR-----LTIYNANIEDAGIYRCQATDAKGQTQEATVVLEI 91
>gnl|CDD|143233 cd05756, Ig1_IL1R_like, First immunoglobulin (Ig)-like domain of
interleukin-1 receptor (IL1R) and similar proteins.
Ig1_IL1R_like: domain similar to the first
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.
Length = 94
Score = 25.1 bits (55), Expect = 9.1
Identities = 15/52 (28%), Positives = 20/52 (38%), Gaps = 8/52 (15%)
Query: 83 SGPYLIAWFKDGRQIPGRTSSTS--------LVINPVGREDRGIYQCIARRS 126
S + W+K + P T S L P ED G+Y C+ R S
Sbjct: 31 SPGLNLTWYKSDGKTPIPTEERSRMHQQKDLLWFLPAALEDSGLYTCVVRNS 82
>gnl|CDD|173862 cd08497, PBP2_NikA_DppA_OppA_like_14, The substrate-binding
component of an uncharacterized ABC-type
nickel/dipeptide/oligopeptide-like import system
contains the type 2 periplasmic binding fold. This CD
represents the substrate-binding domain of an
uncharacterized ATP-binding cassette (ABC) type
nickel/dipeptide/oligopeptide-like transporter. The
oligopeptide-binding protein OppA and the
dipeptide-binding protein DppA show significant sequence
similarity to NikA, the initial nickel receptor. The
DppA binds dipeptides and some tripeptides and is
involved in chemotaxis toward dipeptides, whereas the
OppA binds peptides of a wide range of lengths (2-35
amino acid residues) and plays a role in recycling of
cell wall peptides, which precludes any involvement in
chemotaxis. Most of other periplasmic binding proteins
are comprised of only two globular subdomains
corresponding to domains I and III of the
dipeptide/oligopeptide binding proteins. The structural
topology of these domains is most similar to that of the
type 2 periplasmic binding proteins (PBP2), which are
responsible for the uptake of a variety of substrates
such as phosphate, sulfate, polysaccharides,
lysine/arginine/ornithine, and histidine. The PBP2 bind
their ligand in the cleft between these domains in a
manner resembling a Venus flytrap. After binding their
specific ligand with high affinity, they can interact
with a cognate membrane transport complex comprised of
two integral membrane domains and two cytoplasmically
located ATPase domains. This interaction triggers the
ligand translocation across the cytoplasmic membrane
energized by ATP hydrolysis. Besides transport
proteins, the PBP2 superfamily includes the
ligand-binding domains from ionotropic glutamate
receptors, LysR-type transcriptional regulators, and
unorthodox sensor proteins involved in signal
transduction.
Length = 491
Score = 25.9 bits (58), Expect = 9.8
Identities = 8/15 (53%), Positives = 9/15 (60%)
Query: 83 SGPYLIAWFKDGRQI 97
SGPY+I GR I
Sbjct: 177 SGPYVIDSVDPGRSI 191
>gnl|CDD|140213 PTZ00186, PTZ00186, heat shock 70 kDa precursor protein;
Provisional.
Length = 657
Score = 26.2 bits (57), Expect = 9.8
Identities = 10/38 (26%), Positives = 22/38 (57%)
Query: 42 EATAEVRLQVSTPYRVDVNPPLLSVHLDGSANFQCEIT 79
EA + + ++S+ +VN P ++ + DG+ + Q I+
Sbjct: 284 EAAEKAKCELSSAMETEVNLPFITANADGAQHIQMHIS 321
>gnl|CDD|165290 PHA02987, PHA02987, Ig domain OX-2-like protein; Provisional.
Length = 189
Score = 25.6 bits (56), Expect = 9.9
Identities = 12/41 (29%), Positives = 22/41 (53%), Gaps = 1/41 (2%)
Query: 83 SGPYLIAWFKDGRQIPGRTSSTS-LVINPVGREDRGIYQCI 122
GP ++ FK+ + ++ + S ++I V +D G Y CI
Sbjct: 63 CGPVIVDKFKNKIEYLSKSFNESTILIKNVSLKDNGCYTCI 103
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 0.136 0.408
Gapped
Lambda K H
0.267 0.0777 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,481,381
Number of extensions: 649134
Number of successful extensions: 681
Number of sequences better than 10.0: 1
Number of HSP's gapped: 671
Number of HSP's successfully gapped: 136
Length of query: 150
Length of database: 10,937,602
Length adjustment: 88
Effective length of query: 62
Effective length of database: 7,034,450
Effective search space: 436135900
Effective search space used: 436135900
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: 54 (24.5 bits)