RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy18191
(238 letters)
>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 = 133 bits (337), Expect = 2e-40
Identities = 54/99 (54%), Positives = 71/99 (71%), Gaps = 4/99 (4%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEI---GSHRILLPAGSL 188
PRI EHP+ +V + +P TLNCKA+G P P I+W K+G + + SHRI+LP+GSL
Sbjct: 2 PRIVEHPSDLIVSKGDPATLNCKAEGRPTPTIQWLKNGQPLETDKDDPRSHRIVLPSGSL 61
Query: 189 FFLSLVHGKK-DTDSGVYWCVARNELGFARSKNATLDVA 226
FFL +VHG+K +D GVY CVA N LG A S+NA+L+VA
Sbjct: 62 FFLRVVHGRKGRSDEGVYVCVAHNSLGEAVSRNASLEVA 100
>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 = 69.8 bits (171), Expect = 1e-15
Identities = 41/95 (43%), Positives = 51/95 (53%), Gaps = 2/95 (2%)
Query: 133 RITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLS 192
P+ V R P LNC A+G P P+IEW KDG L++ R LP GSL S
Sbjct: 1 WFLSEPSDIVAVRGGPVVLNCSAEGEPPPKIEWKKDGVLLNLVSDERRQQLPNGSLLITS 60
Query: 193 LVHGKKD-TDSGVYWCVARNE-LGFARSKNATLDV 225
+VH K + D G Y CVA+N+ LG S+ A L V
Sbjct: 61 VVHSKHNKPDEGFYQCVAQNDSLGSIVSRTARLTV 95
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 65.7 bits (161), Expect = 3e-14
Identities = 27/96 (28%), Positives = 40/96 (41%), Gaps = 8/96 (8%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAG--SLF 189
P+ T+ P V E C G P+P + W+KDG + ++ G +L
Sbjct: 1 PKFTQKPKDVEVQEGESARFTCTVTGDPDPTVSWFKDGQPLR-SSDRFKVTYEGGTYTLT 59
Query: 190 FLSLVHGKKDTDSGVYWCVARNELGFARSKNATLDV 225
++ + D D G Y CVA N G +A L V
Sbjct: 60 ISNV---QPD-DEGKYTCVATNSAG-EAEASAELTV 90
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 61.3 bits (149), Expect = 7e-13
Identities = 24/68 (35%), Positives = 33/68 (48%), Gaps = 7/68 (10%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYW 206
+ TL C A+G P P I W KDG + + +GS L++ + DSG+Y
Sbjct: 3 QSVTLTCPAEGNPVPNITWLKDGK----PLPESNRFVASGS--TLTIKSVSLE-DSGLYT 55
Query: 207 CVARNELG 214
CVA N G
Sbjct: 56 CVAENSAG 63
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 57.1 bits (138), Expect = 4e-11
Identities = 35/94 (37%), Positives = 40/94 (42%), Gaps = 15/94 (15%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFL 191
P +T P+ VV E TL C A G P P WYKDG +S + + FF
Sbjct: 2 PVLT--PSPTVVFEGEDVTLTCSAPGNPPPNYTWYKDGVPLS----------SSQNGFFT 49
Query: 192 SLVHGKKDTDSGVYWCVARNELGFARSKNATLDV 225
V DSG Y CVA N G S TL V
Sbjct: 50 PNVS---AEDSGTYTCVASNGGGGKTSNPVTLTV 80
>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 = 57.0 bits (138), Expect = 5e-11
Identities = 28/91 (30%), Positives = 39/91 (42%), Gaps = 6/91 (6%)
Query: 136 EHPASAVVPRHEPTTLNCKAD-GYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLV 194
P+ V E L C G+PEP + W KDG + ++ G+L L+
Sbjct: 1 VEPSDTQVAVGEMAVLECSPPRGHPEPTVSWRKDGQPL-NLDNERVRIVDDGNL----LI 55
Query: 195 HGKKDTDSGVYWCVARNELGFARSKNATLDV 225
+ +D G Y CVA N +G S A L V
Sbjct: 56 AEARKSDEGTYKCVATNMVGERESAAARLSV 86
>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 = 56.3 bits (135), Expect = 6e-11
Identities = 22/71 (30%), Positives = 30/71 (42%), Gaps = 1/71 (1%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSL-VHGKKDTDSGVYWCV 208
TL C A G P P I W K+G + + + + S +L + DSG Y CV
Sbjct: 2 TLTCLASGPPPPTITWLKNGKPLPSSVLTRVRSSRGTSSGSSTLTISNVTLEDSGTYTCV 61
Query: 209 ARNELGFARSK 219
A N G +
Sbjct: 62 ASNSAGTVSAS 72
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 56.0 bits (135), Expect = 1e-10
Identities = 34/88 (38%), Positives = 44/88 (50%), Gaps = 3/88 (3%)
Query: 138 PASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGK 197
P S V E TL+C+A G P P + WYK G + AE G + +GS L++ +
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSV-SRSGSTSTLTISNVT 59
Query: 198 KDTDSGVYWCVARNELGFARSKNATLDV 225
+ DSG Y C A N G A S TL V
Sbjct: 60 PE-DSGTYTCAATNSSGSASS-GTTLTV 85
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 56.0 bits (135), Expect = 1e-10
Identities = 34/88 (38%), Positives = 44/88 (50%), Gaps = 3/88 (3%)
Query: 138 PASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGK 197
P S V E TL+C+A G P P + WYK G + AE G + +GS L++ +
Sbjct: 1 PPSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSV-SRSGSTSTLTISNVT 59
Query: 198 KDTDSGVYWCVARNELGFARSKNATLDV 225
+ DSG Y C A N G A S TL V
Sbjct: 60 PE-DSGTYTCAATNSSGSASS-GTTLTV 85
>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 = 52.2 bits (125), Expect = 2e-09
Identities = 31/76 (40%), Positives = 40/76 (52%), Gaps = 5/76 (6%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRI-LLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
L C A G+P P+I W KDG R+ ++P +FF+ V K D+GVY C A
Sbjct: 3 LECAATGHPTPQIAWQKDGGTDFPAARERRMHVMPEDDVFFIVDV---KIEDTGVYSCTA 59
Query: 210 RNELGFARSKNATLDV 225
+N G S NATL V
Sbjct: 60 QNTAGSI-SANATLTV 74
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 48.9 bits (116), Expect = 4e-08
Identities = 33/81 (40%), Positives = 37/81 (45%), Gaps = 9/81 (11%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYP-EPRIEWYKDGSLVSAEIGSHRILLPAGSLFF 190
P IT P S V TL C A+G P P I WY++GS G L +GS
Sbjct: 2 PVITVSP-SPSVTSGGGVTLTCSAEGGPPPPTISWYRNGS----ISGGSGGLGSSGSTLT 56
Query: 191 LSLVHGKKDTDSGVYWCVARN 211
LS V DSG Y CVA N
Sbjct: 57 LSSV---TSEDSGTYTCVASN 74
>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 = 48.4 bits (115), Expect = 7e-08
Identities = 23/68 (33%), Positives = 37/68 (54%), Gaps = 3/68 (4%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
+L C A+G P PR+ W K+G ++ ++ L+ GS +S V + D+G Y C+A
Sbjct: 2 SLRCHAEGIPLPRLTWLKNGMDITPKLSKQLTLIANGSELHISNVRYE---DTGAYTCIA 58
Query: 210 RNELGFAR 217
+NE G
Sbjct: 59 KNEAGVDE 66
>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 = 48.0 bits (114), Expect = 1e-07
Identities = 25/62 (40%), Positives = 34/62 (54%), Gaps = 7/62 (11%)
Query: 153 CKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVARNE 212
CKA G P P W K+G +++E +RI + AG L L +DSG+Y CVA N+
Sbjct: 21 CKASGNPRPAYRWLKNGQPLASE---NRIEVEAGDLRITKLSL----SDSGMYQCVAENK 73
Query: 213 LG 214
G
Sbjct: 74 HG 75
>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 = 47.8 bits (114), Expect = 1e-07
Identities = 29/94 (30%), Positives = 42/94 (44%), Gaps = 7/94 (7%)
Query: 132 PRITEHPASAVVPRHEP---TTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSL 188
P E P + P +LNC+A G P P W +G+ + E S L+ G+L
Sbjct: 2 PVFEEQPDDTIFPEESDEGKVSLNCRARGSPPPTYRWLMNGTEIDDEPDSRYSLV-GGNL 60
Query: 189 FFLSLVHGKKDTDSGVYWCVARNELGFARSKNAT 222
+ K D+G Y C+A N +G S+ AT
Sbjct: 61 VISNPSKAK---DAGRYQCLASNIVGTVLSREAT 91
>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 = 46.4 bits (110), Expect = 3e-07
Identities = 25/78 (32%), Positives = 40/78 (51%), Gaps = 5/78 (6%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
TL C DG+P P +W++DG+ +S G++ + +L + DSG+Y+C A
Sbjct: 2 TLRCHIDGHPRPTYQWFRDGTPLSDGQGNYSVSSKERTL----TLRSAGPDDSGLYYCCA 57
Query: 210 RNELGFA-RSKNATLDVA 226
N G S+N TL +
Sbjct: 58 HNAFGSVCSSQNFTLSII 75
>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 = 45.9 bits (109), Expect = 5e-07
Identities = 27/74 (36%), Positives = 35/74 (47%), Gaps = 9/74 (12%)
Query: 153 CKADGYPEPRIEWYKDGSLVSAEIGSHRI-LLPAGSLFFLSLVHGKKDTDSGVYWCVARN 211
CK P+P I W K L++ S RI + P GSL L++ +D G Y C A N
Sbjct: 8 CKPKAAPKPTISWSKGTELLTN---SSRICIWPDGSLEILNV----TKSDEGKYTCFAEN 60
Query: 212 ELGFARSKNATLDV 225
G A S +L V
Sbjct: 61 FFGKANS-TGSLSV 73
>gnl|CDD|143282 cd05874, Ig6_NrCAM, Sixth immunoglobulin (Ig)-like domain of NrCAM
(Ng (neuronglia) CAM-related cell adhesion molecule).
Ig6_NrCAM: sixth immunoglobulin (Ig)-like domain of
NrCAM (Ng (neuronglia) CAM-related cell adhesion
molecule). NrCAM belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region,
and an intracellular domain. NrCAM is primarily
expressed in the nervous system.
Length = 77
Score = 45.3 bits (107), Expect = 7e-07
Identities = 23/71 (32%), Positives = 33/71 (46%), Gaps = 1/71 (1%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLP-AGSLFFLSLVHGKKDTDSGVYWCVA 209
+ C+A G P P W ++G+ + + P G+L + K + GVY C A
Sbjct: 3 IQCEAKGKPPPSFSWTRNGTHFDIDKDPKVTMKPNTGTLVINIMNGEKAEAYEGVYQCTA 62
Query: 210 RNELGFARSKN 220
RNE G A S N
Sbjct: 63 RNERGAAVSNN 73
>gnl|CDD|143223 cd05746, Ig4_Peroxidasin, Fourth immunoglobulin (Ig)-like domain of
peroxidasin. Ig4_Peroxidasin: the fourth immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted, and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells, which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 69
Score = 45.3 bits (107), Expect = 7e-07
Identities = 28/68 (41%), Positives = 33/68 (48%), Gaps = 6/68 (8%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVAR 210
+ C A G PEP I W KDG V+ E G I P G L + D G Y CVAR
Sbjct: 3 IPCSAQGDPEPTITWNKDGVQVT-ESGKFHI-SPEGYL----AIRDVGVADQGRYECVAR 56
Query: 211 NELGFARS 218
N +G+A
Sbjct: 57 NTIGYASV 64
>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 = 45.0 bits (106), Expect = 8e-07
Identities = 28/79 (35%), Positives = 40/79 (50%), Gaps = 8/79 (10%)
Query: 149 TTLNCKADGYPEPRIEWYKDGSLVSAEIGSH-RI-LLPAGSLFFLSLVHGKKDTDSGVYW 206
T+ C A G P+P I W+KD + + S+ RI L +G+L + +++D G Y
Sbjct: 1 ATMLCAASGNPDPEITWFKD--FLPVDTTSNGRIKQLRSGALQ----IENSEESDQGKYE 54
Query: 207 CVARNELGFARSKNATLDV 225
CVA N G S A L V
Sbjct: 55 CVATNSAGTRYSAPANLYV 73
>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 = 45.1 bits (107), Expect = 8e-07
Identities = 23/79 (29%), Positives = 37/79 (46%), Gaps = 5/79 (6%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYW 206
E L+C+A+G P+P I W +G + R + G+L ++ D+ VY
Sbjct: 2 ETGRLDCEAEGIPQPTITWRLNGVPIEELPPDPRRRVDGGTLILSNVQPN----DTAVYQ 57
Query: 207 CVARNELGFARSKNATLDV 225
C A N G+ + NA + V
Sbjct: 58 CNASNVHGYLLA-NAFVHV 75
>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 = 45.3 bits (107), Expect = 1e-06
Identities = 28/95 (29%), Positives = 41/95 (43%), Gaps = 7/95 (7%)
Query: 132 PRITEHPASAVVPR---HEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSL 188
P E P+S + P E TL C+A P W +G+ + S L+ AG+L
Sbjct: 2 PVFEEQPSSLLFPEGSPEEKVTLGCRARASPPATYRWKMNGTEIKFAPESRYTLV-AGNL 60
Query: 189 FFLSLVHGKKDTDSGVYWCVARNELGFARSKNATL 223
+ + D+G Y C+A N G S+ A L
Sbjct: 61 VINNPQKAR---DAGSYQCLAINRCGTVVSREANL 92
>gnl|CDD|143208 cd05731, Ig3_L1-CAM_like, Third immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig3_L1-CAM_like:
domain similar to the third immunoglobulin (Ig)-like
domain of the L1 cell adhesion molecule (CAM). L1
belongs to the L1 subfamily of cell adhesion molecules
(CAMs) and is comprised of an extracellular region
having six Ig-like domains and five fibronectin type III
domains, a transmembrane region and an intracellular
domain. L1 is primarily expressed in the nervous system
and is involved in its development and function. L1 is
associated with an X-linked recessive disorder, X-linked
hydrocephalus, MASA syndrome, or spastic paraplegia type
1, that involves abnormalities of axonal growth. This
group also contains the chicken neuron-glia cell
adhesion molecule, Ng-CAM and human neurofascin.
Length = 71
Score = 44.7 bits (106), Expect = 1e-06
Identities = 26/75 (34%), Positives = 29/75 (38%), Gaps = 20/75 (26%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGK-------KDTDS 202
L C A+G P P I W K G G LPA F + K + D
Sbjct: 2 LLECIAEGLPTPEISWIKIG-------GE----LPADRTKFEN--FNKTLKIDNVSEEDD 48
Query: 203 GVYWCVARNELGFAR 217
G Y C A N LG AR
Sbjct: 49 GEYRCTASNSLGSAR 63
>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 = 44.3 bits (105), Expect = 2e-06
Identities = 28/77 (36%), Positives = 35/77 (45%), Gaps = 9/77 (11%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAE--IGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCV 208
L C A G P P I W KDG E IG +++ +L S+V DSG Y C+
Sbjct: 14 LKCPASGNPRPTITWLKDGKPFKKEHRIGGYKVRKKKWTLILESVVPS----DSGKYTCI 69
Query: 209 ARNELGFARSKNATLDV 225
N+ G S N T V
Sbjct: 70 VENKYG---SINHTYKV 83
>gnl|CDD|143211 cd05734, Ig7_DSCAM, Seventh immunoglobulin (Ig)-like domain of Down
Syndrome Cell Adhesion molecule (DSCAM). Ig7_DSCAM: the
seventh immunoglobulin (Ig)-like domain of Down Syndrome
Cell Adhesion molecule (DSCAM). DSCAM is a cell adhesion
molecule expressed largely in the developing nervous
system. The gene encoding DSCAM is located at human
chromosome 21q22, the locus associated with the mental
retardation phenotype of Down Syndrome. DSCAM is
predicted to be the largest member of the IG
superfamily. It has been demonstrated that DSCAM can
mediate cation-independent homophilic intercellular
adhesion.
Length = 79
Score = 43.4 bits (102), Expect = 4e-06
Identities = 29/82 (35%), Positives = 38/82 (46%), Gaps = 10/82 (12%)
Query: 150 TLNCKADGYPEPRIEW-YKDGSLV-----SAEIGSHRILLPAGSLFFLSLVHGKKDTDSG 203
TLNC A+GYP P I W + G + + LL GSL L+ + DSG
Sbjct: 2 TLNCSAEGYPPPTIVWKHSKGRGHPQHTHTCCLAGRIQLLSNGSL----LIKHVLEEDSG 57
Query: 204 VYWCVARNELGFARSKNATLDV 225
Y C N++G SK+ L V
Sbjct: 58 YYLCKVSNDVGADASKSMVLTV 79
>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 = 43.4 bits (102), Expect = 5e-06
Identities = 29/96 (30%), Positives = 45/96 (46%), Gaps = 9/96 (9%)
Query: 132 PRITEHPASAVVP---RHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSL 188
P + P A+ P + LNC+A G P P W ++G+ + E +R L G+L
Sbjct: 2 PVFVQEPDDAIFPTDSDEKKVILNCEARGNPVPTYRWLRNGTEIDTE-SDYRYSLIDGNL 60
Query: 189 FFLSLVHGKKDT-DSGVYWCVARNELGFARSKNATL 223
++ + DSG Y C+A N +G S+ A L
Sbjct: 61 ----IISNPSEVKDSGRYQCLATNSIGSILSREALL 92
>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 = 42.5 bits (100), Expect = 7e-06
Identities = 28/71 (39%), Positives = 36/71 (50%), Gaps = 7/71 (9%)
Query: 147 EPTTLNCKADGYPEPRIEW-YKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVY 205
+ TL CKA G PEP I W DG L+S S ++ G+L L+ KDT G +
Sbjct: 2 QRATLRCKARGDPEPAIHWISPDGKLISNS--SRTLVYDNGTLDI--LITTVKDT--GSF 55
Query: 206 WCVARNELGFA 216
C+A N G A
Sbjct: 56 TCIASNAAGEA 66
>gnl|CDD|143257 cd05849, Ig1_Contactin-1, First Ig domain of contactin-1.
Ig1_Contactin-1: First Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 93
Score = 43.0 bits (101), Expect = 8e-06
Identities = 26/96 (27%), Positives = 43/96 (44%), Gaps = 8/96 (8%)
Query: 132 PRITEHPASAVVPRHE---PTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSL 188
P E P + P ++NC+A P P +W K+ + ++ + R + G+L
Sbjct: 2 PVFEEQPIDTIYPEESTEGKVSVNCRARANPFPIYKWRKNNLDI--DLTNDRYSMVGGNL 59
Query: 189 FFLSLVHGKKDTDSGVYWCVARNELGFARSKNATLD 224
+ + K D+G Y C+ N G RS+ ATL
Sbjct: 60 V---INNPDKYKDAGRYVCIVSNIYGKVRSREATLS 92
>gnl|CDD|143210 cd05733, Ig6_L1-CAM_like, Sixth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM) and similar
proteins. Ig6_L1-CAM_like: domain similar to the sixth
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
NrCAM [Ng(neuronglia)CAM-related cell adhesion
molecule], which is primarily expressed in the nervous
system, and human neurofascin.
Length = 77
Score = 42.4 bits (100), Expect = 9e-06
Identities = 22/75 (29%), Positives = 32/75 (42%), Gaps = 1/75 (1%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTD-SGVYWCV 208
+ C+A G P P W ++G+ E + P + ++G + D G Y C
Sbjct: 2 VIKCEAKGNPPPTFSWTRNGTHFDPEKDPRVTMKPDSGTLVIDNMNGGRAEDYEGEYQCY 61
Query: 209 ARNELGFARSKNATL 223
A NELG A S L
Sbjct: 62 ASNELGTAISNEIHL 76
>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 = 42.2 bits (99), Expect = 1e-05
Identities = 20/68 (29%), Positives = 30/68 (44%), Gaps = 4/68 (5%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYW 206
+ TL C ADG+PEP + W KDG + + + + L + D Y
Sbjct: 19 QSVTLACDADGFPEPTMTWTKDGEPIESGEEKYSFNEDGSEMTILDV----DKLDEAEYT 74
Query: 207 CVARNELG 214
C+A N+ G
Sbjct: 75 CIAENKAG 82
>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 = 42.2 bits (99), Expect = 1e-05
Identities = 31/87 (35%), Positives = 38/87 (43%), Gaps = 11/87 (12%)
Query: 143 VPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAE--IGSHRILLPAGSLFFLSLVHGKKDT 200
VP C A G P P + W K+G E IG +++ SL S+V +
Sbjct: 6 VPAANTVKFRCPAAGNPTPTMRWLKNGKEFKQEHRIGGYKVRNQHWSLIMESVV----PS 61
Query: 201 DSGVYWCVARNELGFARSKNAT--LDV 225
D G Y CV NE G S N T LDV
Sbjct: 62 DKGNYTCVVENEYG---SINHTYHLDV 85
>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 = 42.1 bits (99), Expect = 1e-05
Identities = 30/76 (39%), Positives = 33/76 (43%), Gaps = 10/76 (13%)
Query: 151 LNCKADGYPEPRIEWYKDGS-LVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
L C A G P P I W KD L EIG R + LSL + K + DSG Y C
Sbjct: 14 LKCVASGNPRPDITWLKDNKPLTPTEIGESR-----KKKWTLSLKNLKPE-DSGKYTCHV 67
Query: 210 RNELGFARSKNATLDV 225
N G NAT V
Sbjct: 68 SNRAG---EINATYKV 80
>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 = 40.5 bits (95), Expect = 4e-05
Identities = 27/87 (31%), Positives = 39/87 (44%), Gaps = 14/87 (16%)
Query: 148 PTTLNCKADG-YPEPRIEWYKDGSLVSAEIGSHRILLPAG------SLFFLSLVHGKKDT 200
P L C+A G P I W++DG ++ + LL G S ++ D
Sbjct: 1 PYNLTCRARGAKPAAEIIWFRDGEVLDGAT-YSKELLKDGKRETTVSTLPIT----PSDH 55
Query: 201 DSG-VYWCVARNE-LGFARSKNATLDV 225
D+G + C ARNE L + + TLDV
Sbjct: 56 DTGRTFTCRARNEALPTGKETSVTLDV 82
>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 = 39.8 bits (93), Expect = 6e-05
Identities = 24/76 (31%), Positives = 32/76 (42%), Gaps = 4/76 (5%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRI-LLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
L C+ P P+I W K+ ++ + RI L L+ D+G Y A
Sbjct: 3 LECRVSAIPPPQIFWKKNNEML--TYNTDRISLYQDNCGRICLLIQNANKEDAGWYTVSA 60
Query: 210 RNELGFARSKNATLDV 225
NE G S NA LDV
Sbjct: 61 VNEAGVV-SCNARLDV 75
>gnl|CDD|143173 cd04972, Ig_TrkABC_d4, Fourth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d4: the fourth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrKB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 90
Score = 39.8 bits (93), Expect = 1e-04
Identities = 24/93 (25%), Positives = 40/93 (43%), Gaps = 8/93 (8%)
Query: 134 ITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAG-SLFFLS 192
+ P + VV T+ C A+G P P++EW G +V + L ++ L
Sbjct: 3 PVDGPNATVVYEGGTATIRCTAEGSPLPKVEWIIAGLIVIQ---TRTDTLETTVDIYNLQ 59
Query: 193 LVHGKKDTDSGVYWCVARNELGFARSKNATLDV 225
L + +T + V C A N +G N ++ V
Sbjct: 60 LSNITSETQTTVT-CTAENPVG---QANVSVQV 88
>gnl|CDD|143275 cd05867, Ig4_L1-CAM_like, Fourth immunoglobulin (Ig)-like domain of
the L1 cell adhesion molecule (CAM). Ig4_L1-CAM_like:
fourth immunoglobulin (Ig)-like domain of the L1 cell
adhesion molecule (CAM). L1 is comprised of an
extracellular region having six Ig-like domains and five
fibronectin type III domains, a transmembrane region and
an intracellular domain. L1 is primarily expressed in
the nervous system and is involved in its development
and function. L1 is associated with an X-linked
recessive disorder, X-linked hydrocephalus, MASA
syndrome, or spastic paraplegia type 1, that involves
abnormalities of axonal growth. This group also contains
the chicken neuron-glia cell adhesion molecule, Ng-CAM.
Length = 76
Score = 38.3 bits (89), Expect = 2e-04
Identities = 20/68 (29%), Positives = 33/68 (48%), Gaps = 4/68 (5%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYW 206
E L+C+ +G P P I W +G+ + R + +G+L + + +D+ VY
Sbjct: 2 ETARLDCQVEGIPTPNITWSINGAPIEGTDPDPRRHVSSGALILTDV----QPSDTAVYQ 57
Query: 207 CVARNELG 214
C ARN G
Sbjct: 58 CEARNRHG 65
>gnl|CDD|215677 pfam00047, ig, Immunoglobulin domain. Members of the
immunoglobulin superfamily are found in hundreds of
proteins of different functions. Examples include
antibodies, the giant muscle kinase titin and receptor
tyrosine kinases. Immunoglobulin-like domains may be
involved in protein-protein and protein-ligand
interactions. The Pfam alignments do not include the
first and last strand of the immunoglobulin-like domain.
Length = 62
Score = 37.9 bits (88), Expect = 2e-04
Identities = 17/65 (26%), Positives = 30/65 (46%), Gaps = 6/65 (9%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLV--SAEIGSHRILLPAGSLFFLSLVHGKKDTDSGV 204
TL C G P+ + W+K+G + S +G+ + + +L ++ + DSG
Sbjct: 2 SSVTLTCSVSGPPQVDVTWFKEGKGLEESTTVGTDENRVSSITLTISNV---TPE-DSGT 57
Query: 205 YWCVA 209
Y CV
Sbjct: 58 YTCVV 62
>gnl|CDD|143277 cd05869, Ig5_NCAM-1, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig5_NCAM-1: The fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM). NCAM plays
important roles in the development and regeneration of
the central nervous system, in synaptogenesis and neural
migration. NCAM mediates cell-cell and cell-substratum
recognition and adhesion via homophilic (NCAM-NCAM) and
heterophilic (NCAM-non-NCAM) interactions. NCAM is
expressed as three major isoforms having different
intracellular extensions. The extracellular portion of
NCAM has five N-terminal Ig-like domains and two
fibronectin type III domains. The double zipper adhesion
complex model for NCAM homophilic binding involves Ig1,
Ig2, and Ig3. By this model, Ig1 and Ig2 mediate
dimerization of NCAM molecules situated on the same cell
surface (cis interactions), and Ig3 domains mediate
interactions between NCAM molecules expressed on the
surface of opposing cells (trans interactions), through
binding to the Ig1 and Ig2 domains. The adhesive ability
of NCAM is modulated by the addition of polysialic acid
chains to the fifth Ig-like domain.
Length = 97
Score = 38.8 bits (90), Expect = 3e-04
Identities = 27/89 (30%), Positives = 39/89 (43%), Gaps = 10/89 (11%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAE---IGSHRILLPAGSL 188
P+IT + E TL C+A G P P I W +S+E + H ++ +
Sbjct: 3 PKITYVENQTAMELEEQITLTCEASGDPIPSITWRTSTRNISSEEKTLDGHIVVRSHARV 62
Query: 189 FFLSLVHGKKD---TDSGVYWCVARNELG 214
L+L K TD+G Y C A N +G
Sbjct: 63 SSLTL----KYIQYTDAGEYLCTASNTIG 87
>gnl|CDD|143276 cd05868, Ig4_NrCAM, Fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). Ig4_ NrCAM:
fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). NrCAM belongs to
the L1 subfamily of cell adhesion molecules (CAMs) and
is comprised of an extracellular region having six
IG-like domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. NrCAM
is primarily expressed in the nervous system.
Length = 76
Score = 37.7 bits (87), Expect = 4e-04
Identities = 26/73 (35%), Positives = 35/73 (47%), Gaps = 12/73 (16%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIG----SHRILLPAGSLFFLSLVHGKKDTDS 202
E TL C+A+G P+P I W +G V EI S ++ G S V ++ S
Sbjct: 2 EDGTLICRANGNPKPSISWLTNG--VPIEIAPTDPSRKV---DGDTIIFSKV---QERSS 53
Query: 203 GVYWCVARNELGF 215
VY C A NE G+
Sbjct: 54 AVYQCNASNEYGY 66
>gnl|CDD|143226 cd05749, Ig2_Tyro3_like, Second immunoglobulin (Ig)-like domain of
Axl/Tyro3 receptor tyrosine kinases (RTKs).
Ig2_Tyro3_like: the second immunoglobulin (Ig)-like
domain in the Axl/Tyro3 family of receptor tyrosine
kinases (RTKs). This family includes Axl (also known as
Ark, Ufo, and Tyro7), Tyro3 (also known as Sky, Rse,
Brt, Dtk, and Tif), and Mer (also known as Nyk, c-Eyk,
and Tyro12). Axl/Tyro3 family receptors have an
extracellular portion with two Ig-like domains followed
by two fibronectin-types III (FNIII) domains, a
membrane-spanning single helix, and a cytoplasmic
tyrosine kinase domain. Axl, Tyro3 and Mer are widely
expressed in adult tissues, though they show higher
expression in the brain, in the lymphatic and vascular
systems, and in the testis. Axl, Tyro3, and Mer bind the
vitamin K dependent protein Gas6 with high affinity, and
in doing so activate their tyrosine kinase activity.
Axl/Gas6 signaling may play a part in cell adhesion
processes, prevention of apoptosis, and cell
proliferation.
Length = 81
Score = 37.8 bits (88), Expect = 4e-04
Identities = 25/90 (27%), Positives = 38/90 (42%), Gaps = 12/90 (13%)
Query: 135 TEHPASAVVPRHEPTTLNCKADGYPEP-RIEWYKDGSLVSAEIGSHRILLPAGSLFFLSL 193
T P V + P L C+A G PEP I W++ GS + PA S S+
Sbjct: 2 TVEPEDLSVTANTPFNLTCQAVGPPEPVEILWWQGGSPLGDP--------PAPS---PSV 50
Query: 194 VHGKKDTDSGVYWCVARNELGFARSKNATL 223
++ ++ + C A N G S+ T+
Sbjct: 51 LNVPGLNETSKFSCEAHNAKGVTTSRTGTV 80
>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 = 37.2 bits (86), Expect = 6e-04
Identities = 21/67 (31%), Positives = 35/67 (52%), Gaps = 8/67 (11%)
Query: 153 CKADGYPEPRIEWYKDGSLVSAEIGSHRI-LLPAGSLFFLSLVHGKKDTDSGVYWCVARN 211
C+ G P P ++W K+G +V I S ++ +L L LV +D G Y C+A N
Sbjct: 6 CEVTGKPTPTVKWVKNGDMV---IPSDYFKIVKEHNLQVLGLVK----SDEGFYQCIAEN 58
Query: 212 ELGFARS 218
++G ++
Sbjct: 59 DVGNVQA 65
>gnl|CDD|143222 cd05745, Ig3_Peroxidasin, Third immunoglobulin (Ig)-like domain of
peroxidasin. Ig3_Peroxidasin: the third immunoglobulin
(Ig)-like domain in peroxidasin. Peroxidasin has a
peroxidase domain and interacting extracellular motifs
containing four Ig-like domains. It has been suggested
that peroxidasin is secreted and has functions related
to the stabilization of the extracellular matrix. It may
play a part in various other important processes such as
removal and destruction of cells which have undergone
programmed cell death, and protection of the organism
against non-self.
Length = 74
Score = 36.1 bits (83), Expect = 0.002
Identities = 24/66 (36%), Positives = 35/66 (53%), Gaps = 8/66 (12%)
Query: 153 CKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSL-VHGKKDTDSGVYWCVARN 211
C+A GYP+P I W K GS +S + ++L +G+L + +H D G Y C A N
Sbjct: 9 CEAQGYPQPVIAWTKGGSQLSVD--RRHLVLSSGTLRISRVALH-----DQGQYECQAVN 61
Query: 212 ELGFAR 217
+G R
Sbjct: 62 IVGSQR 67
>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 = 0.003
Identities = 13/33 (39%), Positives = 18/33 (54%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRILL 183
L K YP P +WYKDG L+S + H + +
Sbjct: 3 LPVKVAAYPPPEFQWYKDGKLISGKHSQHSLQI 35
>gnl|CDD|143224 cd05747, Ig5_Titin_like, M5, fifth immunoglobulin (Ig)-like domain
of human titin C terminus and similar proteins.
Ig5_Titin_like: domain similar to the M5, fifth
immunoglobulin (Ig)-like domain from the human titin C
terminus. Titin (also called connectin) is a fibrous
sarcomeric protein specifically found in vertebrate
striated muscle. Titin is gigantic; depending on isoform
composition it ranges from 2970 to 3700 kDa, and is of a
length that spans half a sarcomere. Titin largely
consists of multiple repeats of Ig-like and fibronectin
type 3 (FN-III)-like domains. Titin connects the ends of
myosin thick filaments to Z disks and extends along the
thick filament to the H zone, and appears to function
similar to an elastic band, keeping the myosin filaments
centered in the sarcomere during muscle contraction or
stretching.
Length = 92
Score = 35.4 bits (81), Expect = 0.003
Identities = 24/85 (28%), Positives = 35/85 (41%), Gaps = 9/85 (10%)
Query: 133 RITEHPASAVVPRHEPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPA---GSLF 189
I P S V E +C DG P P + W ++G ++ + S R + + S F
Sbjct: 5 TILTKPRSLTVSEGESARFSCDVDGEPAPTVTWMREGQIIVS---SQRHQITSTEYKSTF 61
Query: 190 FLSLVHGKKDTDSGVYWCVARNELG 214
+S V +D G Y V N G
Sbjct: 62 EISKVQM---SDEGNYTVVVENSEG 83
>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 = 34.7 bits (80), Expect = 0.003
Identities = 24/77 (31%), Positives = 30/77 (38%), Gaps = 10/77 (12%)
Query: 150 TLNCKADGYPEPRIEWYK-DGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCV 208
C+ G P P + W K DG L G I L SL + D G Y C
Sbjct: 2 EFQCEVGGDPVPTVLWRKEDGEL---PKGRAEI-LDDKSL----KIRNVTAGDEGSYTCE 53
Query: 209 ARNELGFARSKNATLDV 225
A N +G + A+L V
Sbjct: 54 AENMVGKIEAS-ASLTV 69
>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 = 34.3 bits (78), Expect = 0.006
Identities = 23/76 (30%), Positives = 37/76 (48%), Gaps = 4/76 (5%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSL-VHGKKDTDSGVYWCVA 209
L C+ G P P+I W K+ ++ + R+ + + ++ L + G D+G Y A
Sbjct: 3 LECRVSGVPHPQIFWKKENESLTHN--TDRVSMHQDNCGYICLLIQGATKEDAGWYTVSA 60
Query: 210 RNELGFARSKNATLDV 225
+NE G S A LDV
Sbjct: 61 KNEAGIV-SCTARLDV 75
>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 = 34.4 bits (79), Expect = 0.006
Identities = 24/69 (34%), Positives = 29/69 (42%), Gaps = 9/69 (13%)
Query: 151 LNCKADG-YPEPRIEWYKDGSLVSAEIGSH---RILLPAGSLFFLSLVHGK-KDTDSGVY 205
L C+A YP R +W+KDG E+ R + L K K DSG Y
Sbjct: 3 LKCEATSEYPSLRFKWFKDG----KELNRKNKPRNIKIRNKKKNSELQINKAKLADSGEY 58
Query: 206 WCVARNELG 214
CV N LG
Sbjct: 59 TCVVENILG 67
>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 = 34.7 bits (80), Expect = 0.007
Identities = 21/77 (27%), Positives = 27/77 (35%), Gaps = 12/77 (15%)
Query: 142 VVPRHEPTTLNCKADGYPEP-----RIEWYKDGS--LVSAEIGSHRILLPAGSLFFLSLV 194
V EP + C + WYK + E S R+ L+FL
Sbjct: 10 YVLEGEPVVIKCPLFYSYIAQSPGLNLTWYKSDGKTPIPTEERS-RMHQQKDLLWFLP-- 66
Query: 195 HGKKDTDSGVYWCVARN 211
DSG+Y CV RN
Sbjct: 67 --AALEDSGLYTCVVRN 81
>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 = 34.1 bits (78), Expect = 0.007
Identities = 18/70 (25%), Positives = 25/70 (35%), Gaps = 10/70 (14%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVH--GKKDTDSGVYWC 207
L C A+G P P + W + +S L + ++D G Y C
Sbjct: 2 VLECIAEGLPTPEVHWDRIDGPLSPNRT--------KKLNNNKTLQLDNVLESDDGEYVC 53
Query: 208 VARNELGFAR 217
A N G AR
Sbjct: 54 TAENSEGSAR 63
>gnl|CDD|143209 cd05732, Ig5_NCAM-1_like, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-1 (NCAM) and similar
proteins. Ig5_NCAM-1 like: domain similar to the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-1 (NCAM). NCAM plays important roles in
the development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-non-NCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves Ig1, Ig2, and Ig3. By
this model, Ig1 and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM is
modulated by the addition of polysialic acid chains to
the fifth Ig-like domain. Also included in this group is
NCAM-2 (also known as OCAM/mamFas II and RNCAM) NCAM-2
is differentially expressed in the developing and mature
olfactory epithelium (OE).
Length = 96
Score = 34.4 bits (79), Expect = 0.008
Identities = 24/81 (29%), Positives = 36/81 (44%), Gaps = 3/81 (3%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGK--KDTDSGV 204
E TL C+A+G P P I W + S S + +S + K + TD+G
Sbjct: 17 EQITLTCEAEGDPIPEITWRRATRNFSEGDKSLDGRIVVRGHARVSSLTLKDVQLTDAGR 76
Query: 205 YWCVARNELGFARSKNATLDV 225
Y C A N +G ++ L+V
Sbjct: 77 YDCEASNRIG-GDQQSMYLEV 96
>gnl|CDD|143267 cd05859, Ig4_PDGFR-alpha, Fourth immunoglobulin (Ig)-like domain of
platelet-derived growth factor receptor (PDGFR) alpha.
IG4_PDGFR-alpha: The fourth immunoglobulin (Ig)-like
domain of platelet-derived growth factor receptor
(PDGFR) alpha. PDGF is a potent mitogen for connective
tissue cells. PDGF-stimulated processes are mediated by
three different PDGFs (PDGF-A,-B, and C). PDGFR alpha
binds to all three PDGFs, whereas the PDGFR beta (not
included in this group) binds only to PDGF-B. PDGF alpha
is organized as an extracellular component having five
Ig-like domains, a transmembrane segment, and a
cytoplasmic portion having protein tyrosine kinase
activity. In mice, PDGFR alpha and PDGFR beta are
essential for normal development.
Length = 101
Score = 34.1 bits (78), Expect = 0.011
Identities = 20/71 (28%), Positives = 33/71 (46%), Gaps = 5/71 (7%)
Query: 146 HEPTTLNCKADGYPEPRIEWYKDGSLVSAEIG----SHRILLPAGSLFFLSLVHGKKDTD 201
HE + + YP P+I W KD + + S + + L L+ K++ D
Sbjct: 18 HEVKEFVVEVEAYPPPQIRWLKDNRTLIENLTEITTSEHNVQETRYVSKLKLIRAKEE-D 76
Query: 202 SGVYWCVARNE 212
SG+Y +A+NE
Sbjct: 77 SGLYTALAQNE 87
>gnl|CDD|143279 cd05871, Ig_Semaphorin_classIII, Immunoglobulin (Ig)-like domain of
class III semaphorin. Ig_Semaphorin_class III;
Immunoglobulin (Ig)-like domain of class III
semaphorins. Semaphorins are classified into various
classes on the basis of structural features additional
to the Sema domain. Class III semaphorins are a
vertebrate class having a Sema domain, an Ig domain, a
short basic domain, and are secreted. They have been
shown to be axonal guidance cues and have a part in the
regulation of the cardiovascular, immune and respiratory
systems. Sema3A, the prototype member of this class III
subfamily, induces growth cone collapse and is an
inhibitor of axonal sprouting. In perinatal rat cortex
as a chemoattractant, it functions to direct, for
pyramidal neurons, the orientated extension of apical
dendrites. It may play a role, prior to the development
of apical dendrites, in signaling the radial migration
of newborn cortical neurons towards the upper layers.
Sema3A selectively inhibits vascular endothelial growth
factor receptor (VEGF)-induced angiogenesis and induces
microvascular permeability. This group also includes
Sema3B, -C, -D, -E, -G.
Length = 91
Score = 33.9 bits (78), Expect = 0.014
Identities = 21/86 (24%), Positives = 36/86 (41%), Gaps = 11/86 (12%)
Query: 136 EHPASAVVPRHEPTTLNCKADGYPEPRIEWY--KDGSLVSAEIGSH-RILLPAGSLFFLS 192
E V + T L C P+ ++W + G E+ + R++ L S
Sbjct: 3 EKVVYGV--ENNSTFLECLPKS-PQASVKWLFQRGGDQRKEEVKTEERLIHTERGLLLRS 59
Query: 193 LVHGKKDTDSGVYWCVARNELGFARS 218
L + +D+GVY C A E F+++
Sbjct: 60 L----QRSDAGVYTCTA-VEHSFSQT 80
>gnl|CDD|143300 cd05892, Ig_Myotilin_C, C-terminal immunoglobulin (Ig)-like domain
of myotilin. Ig_Myotilin_C: C-terminal immunoglobulin
(Ig)-like domain of myotilin. Mytolin belongs to the
palladin-myotilin-myopalladin family. Proteins belonging
to the latter family contain multiple Ig-like domains
and function as scaffolds, modulating actin
cytoskeleton. Myotilin is most abundant in skeletal and
cardiac muscle, and is involved in maintaining sarcomere
integrity. It binds to alpha-actinin, filamin and actin.
Mutations in myotilin lead to muscle disorders.
Length = 75
Score = 33.4 bits (76), Expect = 0.016
Identities = 24/76 (31%), Positives = 35/76 (46%), Gaps = 4/76 (5%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRI-LLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
L C+ P P+I W ++ +V + + RI L S L+ D+G Y A
Sbjct: 3 LECQISAIPPPKIFWKRNNEMV--QYNTDRISLYQDNSGRVTLLIKNVNKKDAGWYTVSA 60
Query: 210 RNELGFARSKNATLDV 225
NE G A + +A LDV
Sbjct: 61 VNEAGVA-TCHARLDV 75
>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 = 33.1 bits (75), Expect = 0.017
Identities = 24/76 (31%), Positives = 33/76 (43%), Gaps = 9/76 (11%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVSAEIGSHRILL-PAGSLFFLSLVHGKKDTDSGVYWCVA 209
+ CK P+P+ W K L+ + + RI + GSL L++ D G Y C A
Sbjct: 6 IECKPKAAPKPKFSWSKGTELL---VNNSRISIWDDGSLEILNITK----LDEGSYTCFA 58
Query: 210 RNELGFARSKNATLDV 225
N G A S L V
Sbjct: 59 ENNRGKANS-TGVLSV 73
>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 = 32.8 bits (75), Expect = 0.020
Identities = 11/21 (52%), Positives = 14/21 (66%)
Query: 154 KADGYPEPRIEWYKDGSLVSA 174
K YP P I+WYK+G L+S
Sbjct: 6 KVKAYPPPEIQWYKNGKLISE 26
>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 = 33.0 bits (75), Expect = 0.023
Identities = 25/81 (30%), Positives = 38/81 (46%), Gaps = 11/81 (13%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAG--SLFFLSLVHGKKDTDSGV 204
+P TL C+A+G I W +GSL+ R+ L +L F ++ +D+G
Sbjct: 19 QPVTLTCEAEGQAT-YIWWVNNGSLLV----PPRLQLSNDNRTLTFNNVTR----SDTGH 69
Query: 205 YWCVARNELGFARSKNATLDV 225
Y C A NE+ S L+V
Sbjct: 70 YQCEASNEVSNMTSDPYILNV 90
>gnl|CDD|143166 cd00098, IgC, Immunoglobulin Constant domain. IgC: Immunoglobulin
constant domain (IgC). Members of the IgC family are
components of immunoglobulin, T-cell receptors, CD1 cell
surface glycoproteins, secretory glycoproteins A/C, and
Major Histocompatibility Complex (MHC) class I/II
molecules. In immunoglobulins, each chain is composed of
one variable domain (IgV) and one or more IgC domains.
These names reflect the fact that the variability in
sequences is higher in the variable domain than in the
constant domain. The IgV domain is responsible for
antigen binding, and the IgC domain is involved in
oligomerization and molecular interactions.
Length = 95
Score = 32.8 bits (75), Expect = 0.034
Identities = 20/78 (25%), Positives = 32/78 (41%), Gaps = 5/78 (6%)
Query: 137 HPASAVVPRHEPTTLNCKADG-YPEP-RIEWYKDGSLVSAEIGSHRILLPAGSLFFLS-- 192
P S TL C A G YP + W K+G +++ + + + + + +S
Sbjct: 4 LPPSPEELLGGSVTLTCLATGFYPPDITVTWLKNGKELTSGVTTTPPVPNSDGTYSVSSQ 63
Query: 193 LVHGKKDTDSG-VYWCVA 209
L D +SG Y CV
Sbjct: 64 LTVSPSDWNSGDTYTCVV 81
>gnl|CDD|143272 cd05864, Ig2_VEGFR-2, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
Ig2_VEGF-2: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor 2 (VEGFR-2).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. VEGFRs bind VEGFs with high
affinity at the Ig-like domains. VEGFR-2 (KDR/Flk-1) is
a major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A;
VEGF-A is important to the growth and maintenance of
vascular endothelial cells and to the development of new
blood- and lymphatic-vessels in physiological and
pathological states. VEGF-A also interacts with VEGFR-1,
which it binds more strongly than VEGFR-2. VEGFR-2 and
-1 may mediate a chemotactic and a survival signal in
hematopoietic stem cells or leukemia cells.
Length = 70
Score = 31.4 bits (71), Expect = 0.057
Identities = 10/21 (47%), Positives = 14/21 (66%)
Query: 154 KADGYPEPRIEWYKDGSLVSA 174
K GYP P ++WYK+G L+
Sbjct: 6 KYYGYPPPEVKWYKNGQLIVL 26
>gnl|CDD|143283 cd05875, Ig6_hNeurofascin_like, Sixth immunoglobulin (Ig)-like
domain of human neurofascin (NF).
Ig6_hNeurofascin_like: the sixth immunoglobulin
(Ig)-like domain of human neurofascin (NF). NF belongs
to the L1 subfamily of cell adhesion molecules (CAMs)
and is comprised of an extracellular region having six
Ig-like domains and five fibronectin type III domains, a
transmembrane region, and a cytoplasmic domain. NF has
many alternatively spliced isoforms having different
temporal expression patterns during development. NF
participates in axon subcellular targeting and synapse
formation, however little is known of the functions of
the different isoforms.
Length = 77
Score = 31.5 bits (71), Expect = 0.063
Identities = 22/74 (29%), Positives = 34/74 (45%), Gaps = 1/74 (1%)
Query: 151 LNCKADGYPEPRIEWYKDGSLVS-AEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCVA 209
+ C+A G P P +W ++G + A+ + +G+L G+ + G Y C A
Sbjct: 3 IECEAKGNPVPTFQWTRNGKFFNVAKDPRVSMRRRSGTLVIDFSGGGRPEDYEGEYQCFA 62
Query: 210 RNELGFARSKNATL 223
RN LG A S L
Sbjct: 63 RNNLGTALSNKILL 76
>gnl|CDD|143193 cd05716, Ig_pIgR, Immunoglobulin (Ig)-like domain in the polymeric
Ig receptor (pIgR). Ig_pIgR: Immunoglobulin (Ig)-like
domain in the polymeric Ig receptor (pIgR). pIgR
delivers dimeric IgA and pentameric IgM to mucosal
secretions. Polymeric immunoglobulin (pIgs) are the
first defense against pathogens and toxins. IgA and IgM
can form polymers via an 18-residue extension at their
c-termini referred to as the tailpiece. pIgR transports
pIgs across mucosal epithelia into mucosal secretions.
Human pIgR is a glycosylated type I transmembrane
protein, comprised of a 620 residue extracellular
region, a 23 residue transmembrane region, and a 103
residue cytoplasmic tail. The extracellular region
contains five domains that share sequence similarity
with Ig variable (v) regions.
Length = 98
Score = 31.3 bits (71), Expect = 0.11
Identities = 13/59 (22%), Positives = 24/59 (40%), Gaps = 4/59 (6%)
Query: 168 DGSLVSAEIGSHRILL---PAGSLFFLSLVHGKKDTDSGVYWCVARNELGFARSKNATL 223
R+ L P +F ++L +K+ D+G YWC ++ + + TL
Sbjct: 40 VSEGSVQSQYEGRVSLTDDPDNGVFTVTLNQLRKE-DAGWYWCGVGDDGDQGLTLSVTL 97
>gnl|CDD|203711 pfam07654, C1-set, Immunoglobulin C1-set domain.
Length = 83
Score = 30.7 bits (70), Expect = 0.13
Identities = 15/49 (30%), Positives = 21/49 (42%), Gaps = 2/49 (4%)
Query: 146 HEPTTLNCKADG-YPEP-RIEWYKDGSLVSAEIGSHRILLPAGSLFFLS 192
+P TL C G YP + W K+G V+ + S L + LS
Sbjct: 8 GKPNTLVCLVTGFYPPDITVTWLKNGQEVTEGVESTEELPNGDGTYQLS 56
>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 = 30.9 bits (70), Expect = 0.14
Identities = 23/75 (30%), Positives = 34/75 (45%), Gaps = 4/75 (5%)
Query: 142 VVPRHEPTTLN--CKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKD 199
VV E TLN C G P+P + W K+ + A + + + G L+ + G
Sbjct: 10 VVTIMEGKTLNLTCTVFGDPDPEVSWLKNDQAL-ALSDHYNVKVEQGKYASLT-IKGVSS 67
Query: 200 TDSGVYWCVARNELG 214
DSG Y V +N+ G
Sbjct: 68 EDSGKYGIVVKNKYG 82
>gnl|CDD|143229 cd05752, Ig1_FcgammaR_like, Frst immunoglobulin (Ig)-like domain of
Fcgamma-receptors (FcgammaRs) and similar proteins.
Ig1_FcgammaR_like: domain similar to the first
immunoglobulin (Ig)-like domain of Fcgamma-receptors
(FcgammaRs). Interactions between IgG and FcgammaR are
important to the initiation of cellular and humoral
response. IgG binding to FcgammaR leads to a cascade of
signals and ultimately to functions such as
antibody-dependent-cellular-cytotoxicity (ADCC),
endocytosis, phagocytosis, release of inflammatory
mediators, etc. FcgammaR has two Ig-like domains. This
group also contains FcepsilonRI, which binds IgE with
high affinity.
Length = 78
Score = 30.4 bits (69), Expect = 0.15
Identities = 23/95 (24%), Positives = 35/95 (36%), Gaps = 18/95 (18%)
Query: 132 PRITEHPASAVVPRHEPTTLNCKADGYPE-PRIEWYKDGSLVSAEIGSHRILLPAGSLFF 190
++ P + + E TL C PE +WY +G L+ S+RI
Sbjct: 1 AVVSLDPPWTTIFQGEKVTLTCNGFNSPEQNSTQWYHNGKLLETTTNSYRIR-------- 52
Query: 191 LSLVHGKKDTDSGVYWCVARNELGFARSKNATLDV 225
+ DSG Y C + G + S L+V
Sbjct: 53 ------AANNDSGEYRCQTQ---GSSLSDPVHLEV 78
>gnl|CDD|219745 pfam08205, C2-set_2, CD80-like C2-set immunoglobulin domain. These
domains belong to the immunoglobulin superfamily.
Length = 89
Score = 30.5 bits (69), Expect = 0.17
Identities = 14/38 (36%), Positives = 16/38 (42%), Gaps = 1/38 (2%)
Query: 150 TLNC-KADGYPEPRIEWYKDGSLVSAEIGSHRILLPAG 186
C A G P PRI WY DG + A S +G
Sbjct: 18 VATCSSAGGKPAPRITWYLDGRELEAITTSSEQDPESG 55
>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 = 30.6 bits (69), Expect = 0.17
Identities = 20/79 (25%), Positives = 34/79 (43%), Gaps = 12/79 (15%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLP---AGSLFFLSL----VHGKKD 199
E + +C G P P I W K + I+ P G++ ++ ++ +
Sbjct: 2 ETASFHCDVTGRPPPEITWEK-----QVHGKENLIMRPNHVRGNVVVTNIGQLVIYNAQP 56
Query: 200 TDSGVYWCVARNELGFARS 218
D+G+Y C ARN G R+
Sbjct: 57 QDAGLYTCTARNSGGLLRA 75
>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 = 30.5 bits (69), Expect = 0.18
Identities = 23/66 (34%), Positives = 31/66 (46%), Gaps = 9/66 (13%)
Query: 150 TLNCKADGYPEPRIEWYK-DGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCV 208
TL C A G P P+I+W K DGS+ S+ I + L ++ + D G Y C
Sbjct: 20 TLECFALGNPVPQIKWRKVDGSMPSSAE----ISMSGAVLKIPNI----QFEDEGTYECE 71
Query: 209 ARNELG 214
A N G
Sbjct: 72 AENIKG 77
>gnl|CDD|143172 cd04971, Ig_TrKABC_d5, Fifth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d5: the fifth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular tyrosine
residues, and triggering the signal transduction
pathway. TrkA, TrkB, and TrkC share significant sequence
homology and domain organization. The first three
domains are leucine-rich domains. The fourth and fifth
domains are Ig-like domains playing a part in ligand
binding. TrkA, Band C mediate the trophic effects of the
neurotrophin Nerve growth factor (NGF) family. TrkA is
recognized by NGF. TrkB is recognized by brain-derived
neurotrophic factor (BDNF) and neurotrophin (NT)-4. TrkC
is recognized by NT-3. NT-3 is promiscuous as in some
cell systems it activates TrkA and TrkB receptors. TrkA
is a receptor found in all major NGF targets, including
the sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout multiple
structures of the central and peripheral nervous
systems. The TrkC gene is expressed throughout the
mammalian nervous system.
Length = 81
Score = 29.7 bits (67), Expect = 0.35
Identities = 20/71 (28%), Positives = 30/71 (42%), Gaps = 14/71 (19%)
Query: 156 DGYPEPRIEWYKDGSLVSAEIGSHR--ILLPA-------GSLFFLSLVHGKKDTDSGVYW 206
G P+P + WY +G++++ E R I G L F + H ++G Y
Sbjct: 8 RGNPKPTLTWYHNGAVLN-ESDYIRTEIHYEVTTPTEYHGCLQFDNPTH----VNNGNYT 62
Query: 207 CVARNELGFAR 217
VA NE G
Sbjct: 63 LVASNEYGQDS 73
>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 = 29.1 bits (65), Expect = 0.57
Identities = 21/75 (28%), Positives = 32/75 (42%), Gaps = 4/75 (5%)
Query: 142 VVPRHEPTTLN--CKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKD 199
VV E TLN C G P+P + W+K+ + E+ H + + + G
Sbjct: 10 VVTIMEGKTLNLTCTVFGNPDPEVIWFKNDQDI--ELSEHYSVKLEQGKYASLTIKGVTS 67
Query: 200 TDSGVYWCVARNELG 214
DSG Y +N+ G
Sbjct: 68 EDSGKYSINVKNKYG 82
>gnl|CDD|143203 cd05726, Ig4_Robo, Third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Ig4_Robo: domain similar to the
third immunoglobulin (Ig)-like domain in Robo
(roundabout) receptors. Robo receptors play a role in
the development of the central nervous system (CNS), and
are receptors of Slit protein. Slit is a repellant
secreted by the neural cells in the midline. Slit acts
through Robo to prevent most neurons from crossing the
midline from either side. Three mammalian Robo homologs
(robo1, -2, and -3), and three mammalian Slit homologs
(Slit-1,-2, -3), have been identified. Commissural
axons, which cross the midline, express low levels of
Robo; longitudinal axons, which avoid the midline,
express high levels of Robo. robo1, -2, and -3 are
expressed by commissural neurons in the vertebrate
spinal cord and Slits 1, -2, -3 are expressed at the
ventral midline. Robo-3 is a divergent member of the
Robo family which instead of being a positive regulator
of slit responsiveness, antagonizes slit responsiveness
in precrossing axons. The Slit-Robo interaction is
mediated by the second leucine-rich repeat (LRR) domain
of Slit and the two N-terminal Ig domains of Robo, Ig1
and Ig2. The primary Robo binding site for Slit2 has
been shown by surface plasmon resonance experiments and
mutational analysis to be is the Ig1 domain, while the
Ig2 domain has been proposed to harbor a weak secondary
binding site.
Length = 90
Score = 29.2 bits (65), Expect = 0.61
Identities = 25/87 (28%), Positives = 37/87 (42%), Gaps = 11/87 (12%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLV------SAEIGSHRILLPAGSLFFLSLVHGKKDTDSG 203
T C+A G P+P I W K+GS + S + G L ++ + +D G
Sbjct: 5 TFQCEATGNPQPAIFWQKEGSQNLLFSYQPPQSSSRFSVSQTGDLTITNV----QRSDVG 60
Query: 204 VYWCVARNELGFARSKNATLDVAGKIS 230
Y C N G +K A L+V I+
Sbjct: 61 YYICQTLNVAGSILTK-AYLEVTDVIA 86
>gnl|CDD|143220 cd05743, Ig_Perlecan_D2_like, Immunoglobulin (Ig)-like domain II
(D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2.
Ig_Perlecan_D2_like: the immunoglobulin (Ig)-like domain
II (D2) of the human basement membrane heparan sulfate
proteoglycan perlecan, also known as HSPG2. Perlecan
consists of five domains. Domain I has three putative
heparan sulfate attachment sites; domain II has four LDL
receptor-like repeats, and one Ig-like repeat; domain
III resembles the short arm of laminin chains; domain IV
has multiple Ig-like repeats (21 repeats in human
perlecan); and domain V resembles the globular G domain
of the laminin A chain and internal repeats of EGF.
Perlecan may participate in a variety of biological
functions including cell binding, LDL-metabolism,
basement membrane assembly and selective permeability,
calcium binding, and growth- and neurite-promoting
activities.
Length = 78
Score = 28.6 bits (64), Expect = 0.73
Identities = 18/69 (26%), Positives = 24/69 (34%), Gaps = 5/69 (7%)
Query: 147 EPTTLNCKADGYPEPRIEWYKDGSLVSAEIGSHRILLPAGSLFFLSLV-HGKKDTDSGVY 205
E C A G P P I W L + + + +L K++D G Y
Sbjct: 2 ETVEFTCVATGVPTPIINW----RLNWGHVPDSARVSITSEGGYGTLTIRDVKESDQGAY 57
Query: 206 WCVARNELG 214
C A N G
Sbjct: 58 TCEAINTRG 66
>gnl|CDD|143278 cd05870, Ig5_NCAM-2, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-2 (also known as
OCAM/mamFas II and RNCAM). Ig5_NCAM-2: the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-2 (also known as OCAM/mamFas II and
RNCAM). NCAM-2 is organized similarly to NCAM ,
including five N-terminal Ig-like domains and two
fibronectin type III domains. NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE), and may function like NCAM, as an
adhesion molecule.
Length = 98
Score = 28.8 bits (64), Expect = 0.83
Identities = 28/80 (35%), Positives = 38/80 (47%), Gaps = 5/80 (6%)
Query: 150 TLNCKADGYPEPRIEWYK--DGSLVSAEIGSHRILLPAGSLFFLSLVHGK--KDTDSGVY 205
TL+CKA+G P P I W + DG S S + S +H K K +DSG Y
Sbjct: 20 TLSCKAEGEPIPEITWKRASDGHTFSEGDKSPDGRIEVKGQHGESSLHIKDVKLSDSGRY 79
Query: 206 WCVARNELGFARSKNATLDV 225
C A + +G K+ LD+
Sbjct: 80 DCEAASRIG-GHQKSMYLDI 98
>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 = 28.6 bits (64), Expect = 0.85
Identities = 12/46 (26%), Positives = 19/46 (41%), Gaps = 4/46 (8%)
Query: 163 IEWYKDGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWCV 208
++WYKD L+ + L + L + + DSG Y C
Sbjct: 32 LQWYKDSVLLDKDNEKFYSLKGSTYLHIIDVSLN----DSGYYTCK 73
>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 = 27.3 bits (60), Expect = 2.4
Identities = 22/67 (32%), Positives = 27/67 (40%), Gaps = 11/67 (16%)
Query: 150 TLNCKADGYPEPRIEWYK--DGSLVSAEIGSHRILLPAGSLFFLSLVHGKKDTDSGVYWC 207
TL C A G P P I W K + +AEI +L +F + D G Y C
Sbjct: 20 TLECFALGNPVPVIRWRKILEPMPATAEISMSGAVL---KIFNIQP------EDEGTYEC 70
Query: 208 VARNELG 214
A N G
Sbjct: 71 EAENIKG 77
>gnl|CDD|143175 cd04974, Ig3_FGFR, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig3_FGFR:
third immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth factors
(FGFs) participate in morphogenesis, development,
angiogenesis, and wound healing. These FGF-stimulated
processes are mediated by four FGFR tyrosine kinases
(FGRF1-4). FGFRs are comprised of an extracellular
portion consisting of three Ig-like domains, a
transmembrane helix, and a cytoplasmic portion having
protein tyrosine kinase activity. The highly conserved
Ig-like domains 2 and 3, and the linker region between
D2 and D3 define a general binding site for FGFs.
Length = 90
Score = 27.4 bits (61), Expect = 2.4
Identities = 21/87 (24%), Positives = 36/87 (41%), Gaps = 11/87 (12%)
Query: 149 TTLNCKADGYPEPRIEWYK----DGSLVSAEIGSH-RIL--LPAGSLFFLSLVHGKKDT- 200
+CK +P I+W K +GS + + +L + S V ++
Sbjct: 4 VEFHCKVYSDAQPHIQWLKHVEVNGSKYGPDGLPYVTVLKVAGINTTDNESEVLYLRNVS 63
Query: 201 --DSGVYWCVARNELGFARSKNATLDV 225
D+G Y C+A N +G + +A L V
Sbjct: 64 FDDAGEYTCLAGNSIGPSH-HSAWLTV 89
>gnl|CDD|143167 cd00099, IgV, Immunoglobulin variable domain (IgV). IgV:
Immunoglobulin variable domain (IgV). Members of the IgV
family are components of immunoglobulin (Ig) and T cell
receptors. The basic structure of Ig molecules is a
tetramer of two light chains and two heavy chains linked
by disulfide bonds. In Ig, each chain is composed of one
variable domain (IgV) and one or more constant domains
(IgC); these names reflect the fact that the variability
in sequences is higher in the variable domain than in
the constant domain. Within the variable domain, there
are regions of even more variability called the
hypervariable or complementarity-determining regions
(CDRs) which are responsible for antigen binding. A
predominant feature of most Ig domains is the disulfide
bridge connecting 2 beta-sheets with a tryptophan
residue packed against the disulfide bond.
Length = 105
Score = 27.3 bits (61), Expect = 3.4
Identities = 9/27 (33%), Positives = 12/27 (44%), Gaps = 1/27 (3%)
Query: 142 VVPRHEPTTLNCKADG-YPEPRIEWYK 167
V E TL+C G + I WY+
Sbjct: 2 SVSEGESVTLSCTYSGSFSSYYIFWYR 28
>gnl|CDD|218746 pfam05784, Herpes_UL82_83, Betaherpesvirus UL82/83 protein N
terminus. This family represents the N terminal region
of the Betaherpesvirus UL82 and UL83 proteins. As
viruses are reliant upon their host cell to serve as
proper environments for their replication, many have
evolved mechanisms to alter intracellular conditions to
suit their own needs. Human cytomegalovirus induces
quiescent cells to enter the cell cycle and then arrests
them in late G(1), before they enter the S phase, a cell
cycle compartment that is presumably favourable for
viral replication. The protein product of the human
cytomegalovirus UL82 gene, pp71, can accelerate the
movement of cells through the G(1) phase of the cell
cycle. This activity would help infected cells reach the
late G(1) arrest point sooner and thus may stimulate the
infectious cycle. pp71 also induces DNA synthesis in
quiescent cells, but a pp71 mutant protein that is
unable to induce quiescent cells to enter the cell cycle
still retains the ability to accelerate the G(1) phase.
Thus, the mechanism through which pp71 accelerates G(1)
cell cycle progression appears to be distinct from the
one that it employs to induce quiescent cells to exit
G(0) and subsequently enter the S phase.
Length = 346
Score = 28.1 bits (63), Expect = 4.1
Identities = 15/38 (39%), Positives = 16/38 (42%), Gaps = 3/38 (7%)
Query: 108 LPLKKYHPPSLPLFPGVHGDGYRVPRITEHPASAVVPR 145
LPL P L LF D +PR A AVV R
Sbjct: 103 LPLDPVPVPPLHLFRVPRRDERNIPRA---VARAVVTR 137
>gnl|CDD|143266 cd05858, Ig3_FGFR-2, Third immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor 2 (FGFR2).
Ig3_FGFR-2-like; domain similar to the third
immunoglobulin (Ig)-like domain of human fibroblast
growth factor receptor 2 (FGFR2). Fibroblast growth
factors (FGFs) participate in morphogenesis,
development, angiogenesis, and wound healing. These
FGF-stimulated processes are mediated by four FGFR
tyrosine kinases (FGRF1-4). FGFRs are comprised of an
extracellular portion consisting of three Ig-like
domains, a transmembrane helix, and a cytoplasmic
portion having protein tyrosine kinase activity. The
highly conserved Ig-like domains 2 and 3, and the linker
region between D2 and D3 define a general binding site
for FGFs. FGFR2 is required for male sex determination.
Length = 90
Score = 26.8 bits (59), Expect = 4.4
Identities = 18/77 (23%), Positives = 33/77 (42%), Gaps = 10/77 (12%)
Query: 150 TLNCKADGYPEPRIEWYKDGSLVSAEIGSH-----RILLPAG---SLFFLSLVHGKKDT- 200
CK +P I+W K ++ G +L AG + + +++ + T
Sbjct: 5 EFVCKVYSDAQPHIQWLKHVEKNGSKYGPDGLPYVTVLKTAGVNTTDKEMEVLYLRNVTF 64
Query: 201 -DSGVYWCVARNELGFA 216
D+G Y C+A N +G +
Sbjct: 65 EDAGEYTCLAGNSIGIS 81
>gnl|CDD|226835 COG4401, AroH, Chorismate mutase [Amino acid transport and
metabolism].
Length = 125
Score = 27.1 bits (60), Expect = 5.5
Identities = 9/30 (30%), Positives = 15/30 (50%)
Query: 15 VENSSQRCIKINLPKASHSPSSRPDQNYLR 44
V S ++CI++ + + P S YLR
Sbjct: 81 VPGSLEKCIRVMITVNTQKPQSEIHHVYLR 110
>gnl|CDD|234020 TIGR02801, tolR, TolR protein. The model describes the inner
membrane protein TolR, part of the TolR/TolQ complex
that transduces energy from the proton-motive force,
through TolA, to an outer membrane complex made up of
TolB and Pal (peptidoglycan-associated lipoprotein).
The complex is required to maintain outer membrane
integrity, and defects may cause a defect in the import
of some organic compounds in addition to the resulting
morphologic. While several gene pairs homologous to
talR and tolQ may be found in a single genome, but the
scope of this model is set to favor finding only bone
fide TolR, supported by operon structure as well as by
score [Transport and binding proteins, Other, Cellular
processes, Pathogenesis].
Length = 129
Score = 26.8 bits (60), Expect = 6.0
Identities = 9/24 (37%), Positives = 15/24 (62%)
Query: 23 IKINLPKASHSPSSRPDQNYLRVS 46
+K++LPK+S P D+ + VS
Sbjct: 32 VKVDLPKSSAKPLQSKDKKPITVS 55
>gnl|CDD|223917 COG0848, ExbD, Biopolymer transport protein [Intracellular
trafficking and secretion].
Length = 137
Score = 26.8 bits (60), Expect = 6.6
Identities = 8/18 (44%), Positives = 13/18 (72%)
Query: 23 IKINLPKASHSPSSRPDQ 40
IK++LPKAS P+ + +
Sbjct: 43 IKVDLPKASAKPAPQDKK 60
>gnl|CDD|183064 PRK11267, PRK11267, biopolymer transport protein ExbD;
Provisional.
Length = 141
Score = 26.6 bits (59), Expect = 7.3
Identities = 10/24 (41%), Positives = 17/24 (70%), Gaps = 1/24 (4%)
Query: 23 IKINLPKASHSPSSRPDQN-YLRV 45
+K+NLP ++ +P RP++ YL V
Sbjct: 45 VKVNLPASTSTPQPRPEKPVYLSV 68
>gnl|CDD|177613 PHA03376, PHA03376, BARF1; Provisional.
Length = 221
Score = 27.0 bits (59), Expect = 8.2
Identities = 6/25 (24%), Positives = 12/25 (48%)
Query: 141 AVVPRHEPTTLNCKADGYPEPRIEW 165
+ P T+ C + +P P ++W
Sbjct: 134 SQFPDFSVLTVTCTVNAFPHPHVQW 158
>gnl|CDD|165149 PHA02785, PHA02785, IL-beta-binding protein; Provisional.
Length = 326
Score = 26.9 bits (59), Expect = 8.9
Identities = 22/83 (26%), Positives = 36/83 (43%), Gaps = 21/83 (25%)
Query: 139 ASAVVPRHEPTTLNCK-----ADGYPEPRIEWYKDGS----LVSAEIGSHRILLPAGSLF 189
AS + +EP L C + GY I W K G+ ++ + GS+ ++L
Sbjct: 34 ASFMELENEPVILPCPQINTLSSGYNILDILWEKRGADNDRIIPIDNGSNMLIL------ 87
Query: 190 FLSLVHGKKDTDSGVYWCVARNE 212
+DSG+Y C+ +NE
Sbjct: 88 ------NPTQSDSGIYICITKNE 104
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.318 0.136 0.425
Gapped
Lambda K H
0.267 0.0637 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 11,972,031
Number of extensions: 1097149
Number of successful extensions: 855
Number of sequences better than 10.0: 1
Number of HSP's gapped: 804
Number of HSP's successfully gapped: 86
Length of query: 238
Length of database: 10,937,602
Length adjustment: 94
Effective length of query: 144
Effective length of database: 6,768,326
Effective search space: 974638944
Effective search space used: 974638944
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 57 (25.9 bits)