RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy11826
(83 letters)
>gnl|CDD|197706 smart00408, IGc2, Immunoglobulin C-2 Type.
Length = 63
Score = 61.7 bits (150), Expect = 1e-14
Identities = 24/69 (34%), Positives = 31/69 (44%), Gaps = 9/69 (13%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G+ +T C AEG P P+ITW KD L F L I + +D+G
Sbjct: 2 GQSVTLTCPAEGNPVPNITWLKDGKPLPESNRFVASGSTL---------TIKSVSLEDSG 52
Query: 63 YYECVADNP 71
Y CVA+N
Sbjct: 53 LYTCVAENS 61
>gnl|CDD|191810 pfam07679, I-set, Immunoglobulin I-set domain.
Length = 90
Score = 57.7 bits (140), Expect = 7e-13
Identities = 20/70 (28%), Positives = 24/70 (34%), Gaps = 5/70 (7%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G F C G P P ++W KD L F+V + I D G
Sbjct: 15 GESARFTCTVTGDPDPTVSWFKDGQPLRSSDRFKVT-----YEGGTYTLTISNVQPDDEG 69
Query: 63 YYECVADNPF 72
Y CVA N
Sbjct: 70 KYTCVATNSA 79
>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 = 56.7 bits (136), Expect = 2e-12
Identities = 23/75 (30%), Positives = 32/75 (42%), Gaps = 1/75 (1%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
+T C+A G P P ITW K+ L +V G ++ S + I T +D+G Y
Sbjct: 1 VTLTCLASGPPPPTITWLKNGKPLPSSVLTRVRSSR-GTSSGSSTLTISNVTLEDSGTYT 59
Query: 66 CVADNPFAIDRRGFR 80
CVA N
Sbjct: 60 CVASNSAGTVSASVT 74
>gnl|CDD|214653 smart00410, IG_like, Immunoglobulin like. IG domains that cannot
be classified into one of IGv1, IGc1, IGc2, IG.
Length = 85
Score = 54.8 bits (132), Expect = 1e-11
Identities = 23/81 (28%), Positives = 30/81 (37%), Gaps = 6/81 (7%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIE-LTFHKYFQVHEWFLGNNTIKSKMEIDPATQK 59
G +T C A G P P +TW K + L F V + S + I T +
Sbjct: 7 KEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVS-----RSGSTSTLTISNVTPE 61
Query: 60 DAGYYECVADNPFAIDRRGFR 80
D+G Y C A N G
Sbjct: 62 DSGTYTCAATNSSGSASSGTT 82
>gnl|CDD|214652 smart00409, IG, Immunoglobulin.
Length = 85
Score = 54.8 bits (132), Expect = 1e-11
Identities = 23/81 (28%), Positives = 30/81 (37%), Gaps = 6/81 (7%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIE-LTFHKYFQVHEWFLGNNTIKSKMEIDPATQK 59
G +T C A G P P +TW K + L F V + S + I T +
Sbjct: 7 KEGESVTLSCEASGSPPPEVTWYKQGGKLLAESGRFSVS-----RSGSTSTLTISNVTPE 61
Query: 60 DAGYYECVADNPFAIDRRGFR 80
D+G Y C A N G
Sbjct: 62 DSGTYTCAATNSSGSASSGTT 82
>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 = 50.6 bits (121), Expect = 3e-10
Identities = 21/63 (33%), Positives = 28/63 (44%), Gaps = 8/63 (12%)
Query: 10 CMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVAD 69
C A+G P P ITW KD +++T F + + + I D G YECVA
Sbjct: 5 CSAQGDPEPTITWNKDGVQVTESGKFHISP--------EGYLAIRDVGVADQGRYECVAR 56
Query: 70 NPF 72
N
Sbjct: 57 NTI 59
>gnl|CDD|143207 cd05730, Ig3_NCAM-1_like, Third immunoglobulin (Ig)-like domain
of Neural Cell Adhesion Molecule NCAM-1 (NCAM).
Ig3_NCAM-1_like: domain similar to the third
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-1 (NCAM). NCAM plays important roles in
the development and regeneration of the central nervous
system, in synaptogenesis and neural migration. NCAM
mediates cell-cell and cell-substratum recognition and
adhesion via homophilic (NCAM-NCAM), and heterophilic
(NCAM-non-NCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves Ig1, Ig2, and Ig3. By
this model, Ig1,and Ig2 mediate dimerization of NCAM
molecules situated on the same cell surface (cis
interactions), and Ig3 domains mediate interactions
between NCAM molecules expressed on the surface of
opposing cells (trans interactions), through binding to
the Ig1 and Ig2 domains. The adhesive ability of NCAM
is modulated by the addition of polysialic acid chains
to the fifth Ig-like domain.
Length = 95
Score = 46.1 bits (109), Expect = 3e-08
Identities = 27/71 (38%), Positives = 35/71 (49%), Gaps = 10/71 (14%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDD--IELTFHKYFQVHEWFLGNNTIKSKMEIDPATQK 59
LG+ +T C A+GFP P +TWTKD IE KY N S+M I +
Sbjct: 17 LGQSVTLACDADGFPEPTMTWTKDGEPIESGEEKY--------SFNEDGSEMTILDVDKL 68
Query: 60 DAGYYECVADN 70
D Y C+A+N
Sbjct: 69 DEAEYTCIAEN 79
>gnl|CDD|143222 cd05745, Ig3_Peroxidasin, Third immunoglobulin (Ig)-like domain
of peroxidasin. Ig3_Peroxidasin: the third
immunoglobulin (Ig)-like domain in peroxidasin.
Peroxidasin has a peroxidase domain and interacting
extracellular motifs containing four Ig-like domains.
It has been suggested that peroxidasin is secreted and
has functions related to the stabilization of the
extracellular matrix. It may play a part in various
other important processes such as removal and
destruction of cells which have undergone programmed
cell death, and protection of the organism against
non-self.
Length = 74
Score = 44.2 bits (104), Expect = 1e-07
Identities = 24/74 (32%), Positives = 35/74 (47%), Gaps = 8/74 (10%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G+ + F C A+G+P+P I WTK +L+ + V L + T++ I D G
Sbjct: 2 GQTVDFLCEAQGYPQPVIAWTKGGSQLSVDRRHLV----LSSGTLR----ISRVALHDQG 53
Query: 63 YYECVADNPFAIDR 76
YEC A N R
Sbjct: 54 QYECQAVNIVGSQR 67
>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 = 43.9 bits (104), Expect = 1e-07
Identities = 24/66 (36%), Positives = 31/66 (46%), Gaps = 16/66 (24%)
Query: 10 CMAEGFPRPHITWTKDDIEL----TFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
C+AEG P P I+W K EL T + F N T+K ID +++D G Y
Sbjct: 5 CIAEGLPTPEISWIKIGGELPADRTKFENF--------NKTLK----IDNVSEEDDGEYR 52
Query: 66 CVADNP 71
C A N
Sbjct: 53 CTASNS 58
>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 = 44.1 bits (104), Expect = 1e-07
Identities = 21/67 (31%), Positives = 33/67 (49%), Gaps = 5/67 (7%)
Query: 10 CMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVAD 69
C AEG P P +TW K+ +++T Q+ + N S++ I +D G Y C+A
Sbjct: 5 CHAEGIPLPRLTWLKNGMDITPKLSKQLT--LIANG---SELHISNVRYEDTGAYTCIAK 59
Query: 70 NPFAIDR 76
N +D
Sbjct: 60 NEAGVDE 66
>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 = 42.9 bits (101), Expect = 3e-07
Identities = 15/63 (23%), Positives = 21/63 (33%), Gaps = 6/63 (9%)
Query: 7 TFFCMAEGFPRPHITWTKDD-IELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
T C G P+ +TW K+ N + I T +D+G Y
Sbjct: 5 TLTCSVSGPPQVDVTWFKEGKGLEESTTVGTDE-----NRVSSITLTISNVTPEDSGTYT 59
Query: 66 CVA 68
CV
Sbjct: 60 CVV 62
>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 = 43.2 bits (102), Expect = 3e-07
Identities = 18/61 (29%), Positives = 25/61 (40%), Gaps = 15/61 (24%)
Query: 14 GFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIK----SKMEIDPATQKDAGYYECVAD 69
G P P ++W KD L L N ++ + I A + D G Y+CVA
Sbjct: 23 GHPEPTVSWRKDGQPLN-----------LDNERVRIVDDGNLLIAEARKSDEGTYKCVAT 71
Query: 70 N 70
N
Sbjct: 72 N 72
>gnl|CDD|143225 cd05748, Ig_Titin_like, Immunoglobulin (Ig)-like domain of titin
and similar proteins. Ig_Titin_like: immunoglobulin
(Ig)-like domain found in titin-like proteins. Titin
(also called connectin) is a fibrous sarcomeric protein
specifically found in vertebrate striated muscle. Titin
is gigantic, depending on isoform composition it ranges
from 2970 to 3700 kDa, and is of a length that spans
half a sarcomere. Titin largely consists of multiple
repeats of Ig-like and fibronectin type 3 (FN-III)-like
domains. Titin connects the ends of myosin thick
filaments to Z disks and extends along the thick
filament to the H zone. It appears to function
similarly to an elastic band, keeping the myosin
filaments centered in the sarcomere during muscle
contraction or stretching. Within the sarcomere, titin
is also attached to or is associated with myosin
binding protein C (MyBP-C). MyBP-C appears to
contribute to the generation of passive tension by
titin, and similar to titin has repeated Ig-like and
FN-III domains. Also included in this group are worm
twitchin and insect projectin, thick filament proteins
of invertebrate muscle, which also have repeated
Ig-like and FN-III domains.
Length = 74
Score = 41.8 bits (99), Expect = 1e-06
Identities = 16/62 (25%), Positives = 23/62 (37%), Gaps = 5/62 (8%)
Query: 14 GFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVADNPFA 73
G P P +TW+KD L Q+ + + I A + D+G Y NP
Sbjct: 10 GRPTPTVTWSKDGKPLKLSGRVQIE-----TTASSTSLVIKNAERSDSGKYTLTLKNPAG 64
Query: 74 ID 75
Sbjct: 65 EK 66
>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 = 41.3 bits (97), Expect = 1e-06
Identities = 21/70 (30%), Positives = 32/70 (45%), Gaps = 8/70 (11%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G + C + P+P I+W+K LT ++ W G+ +EI T+ D G
Sbjct: 1 GGDVIIECKPKAAPKPTISWSKGTELLTNSS--RICIWPDGS------LEILNVTKSDEG 52
Query: 63 YYECVADNPF 72
Y C A+N F
Sbjct: 53 KYTCFAENFF 62
>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 = 40.1 bits (94), Expect = 3e-06
Identities = 20/65 (30%), Positives = 28/65 (43%), Gaps = 9/65 (13%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
+ F C G P P + W K+D EL + L + ++K I T D G Y
Sbjct: 1 VEFQCEVGGDPVPTVLWRKEDGELPKGRAEI-----LDDKSLK----IRNVTAGDEGSYT 51
Query: 66 CVADN 70
C A+N
Sbjct: 52 CEAEN 56
>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 = 39.2 bits (91), Expect = 1e-05
Identities = 26/80 (32%), Positives = 32/80 (40%), Gaps = 12/80 (15%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFL-GNNTIKSKMEIDPATQK- 59
L +IT C A G P P ITW T + E L G+ ++S + T K
Sbjct: 16 LEEQITLTCEASGDPIPSITWR------TSTRNISSEEKTLDGHIVVRSHARVSSLTLKY 69
Query: 60 ----DAGYYECVADNPFAID 75
DAG Y C A N D
Sbjct: 70 IQYTDAGEYLCTASNTIGQD 89
>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 = 38.5 bits (89), Expect = 2e-05
Identities = 23/68 (33%), Positives = 30/68 (44%), Gaps = 14/68 (20%)
Query: 7 TFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIK----SKMEIDPATQKDAG 62
T C A G P P ITW KD + + N IK ++I+ + + D G
Sbjct: 2 TMLCAASGNPDPEITWFKDFLPVDTT----------SNGRIKQLRSGALQIENSEESDQG 51
Query: 63 YYECVADN 70
YECVA N
Sbjct: 52 KYECVATN 59
>gnl|CDD|222457 pfam13927, Ig_3, Immunoglobulin domain. This family contains
immunoglobulin-like domains.
Length = 74
Score = 38.5 bits (89), Expect = 2e-05
Identities = 20/69 (28%), Positives = 29/69 (42%), Gaps = 10/69 (14%)
Query: 3 GRKITFFCMAEGFPRPH-ITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
G +T C AEG P P I+W ++ G + S + + T +D+
Sbjct: 15 GGGVTLTCSAEGGPPPPTISWYRNGSISGGSG---------GLGSSGSTLTLSSVTSEDS 65
Query: 62 GYYECVADN 70
G Y CVA N
Sbjct: 66 GTYTCVASN 74
>gnl|CDD|143257 cd05849, Ig1_Contactin-1, First Ig domain of contactin-1.
Ig1_Contactin-1: First Ig domain of the neural cell
adhesion molecule contactin-1. Contactins are comprised
of six Ig domains followed by four fibronectin type III
(FnIII) domains anchored to the membrane by
glycosylphosphatidylinositol. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 93
Score = 38.8 bits (90), Expect = 2e-05
Identities = 24/74 (32%), Positives = 34/74 (45%), Gaps = 11/74 (14%)
Query: 5 KITFFCMAEGFPRPHITWTKD--DIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
K++ C A P P W K+ DI+LT +Y V G N + + +P KDAG
Sbjct: 21 KVSVNCRARANPFPIYKWRKNNLDIDLTNDRYSMV-----GGNLVIN----NPDKYKDAG 71
Query: 63 YYECVADNPFAIDR 76
Y C+ N + R
Sbjct: 72 RYVCIVSNIYGKVR 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 = 38.3 bits (89), Expect = 2e-05
Identities = 20/69 (28%), Positives = 31/69 (44%), Gaps = 7/69 (10%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
+G + C+A G PRP ITW KD+ LT + + + K + + +D+
Sbjct: 8 VGSSVRLKCVASGNPRPDITWLKDNKPLTPTEIGE-------SRKKKWTLSLKNLKPEDS 60
Query: 62 GYYECVADN 70
G Y C N
Sbjct: 61 GKYTCHVSN 69
>gnl|CDD|143227 cd05750, Ig_Pro_neuregulin, Immunoglobulin (Ig)-like domain in
neuregulins (NRGs). Ig_Pro_neuregulin: immunoglobulin
(Ig)-like domain in neuregulins (NRGs). NRGs are
signaling molecules, which participate in cell-cell
interactions in the nervous system, breast, heart, and
other organ systems, and are implicated in the
pathology of diseases including schizophrenia, multiple
sclerosis, and breast cancer. There are four members of
the neuregulin gene family (NRG1, -2, -3, and -4). The
NRG-1 protein, binds to and activates the tyrosine
kinases receptors ErbB3 and ErbB4, initiating signaling
cascades. The other NRGs proteins bind one or the other
or both of these ErbBs. NRG-1 has multiple functions;
for example, in the brain it regulates various
processes such as radial glia formation and neuronal
migration, dendritic development, and expression of
neurotransmitters receptors; in the peripheral nervous
system NRG-1 regulates processes such as target cell
differentiation, and Schwann cell survival. There are
many NRG-1 isoforms, which arise from the alternative
splicing of mRNA. Less is known of the functions of the
other NRGs. NRG-2 and -3 are expressed predominantly in
the nervous system. NRG-2 is expressed by motor neurons
and terminal Schwann cells, and is concentrated near
synaptic sites and may be a signal that regulates
synaptic differentiation. NRG-4 has been shown to
direct pancreatic islet cell development towards the
delta-cell lineage.
Length = 75
Score = 38.3 bits (89), Expect = 3e-05
Identities = 16/59 (27%), Positives = 25/59 (42%), Gaps = 2/59 (3%)
Query: 12 AEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVADN 70
+P W KD EL + + N S+++I+ A D+G Y CV +N
Sbjct: 8 TSEYPSLRFKWFKDGKELNRKN--KPRNIKIRNKKKNSELQINKAKLADSGEYTCVVEN 64
>gnl|CDD|143284 cd05876, Ig3_L1-CAM, Third immunoglobulin (Ig)-like domain of the
L1 cell adhesion molecule (CAM). Ig3_L1-CAM: third
immunoglobulin (Ig)-like domain of the L1 cell adhesion
molecule (CAM). L1 belongs to the L1 subfamily of cell
adhesion molecules (CAMs) and is comprised of an
extracellular region having six Ig-like domains, five
fibronectin type III domains, a transmembrane region
and an intracellular domain. L1 is primarily expressed
in the nervous system and is involved in its
development and function. L1 is associated with an
X-linked recessive disorder, X-linked hydrocephalus,
MASA syndrome, or spastic paraplegia type 1, that
involves abnormalities of axonal growth. This group
also contains the chicken neuron-glia cell adhesion
molecule, Ng-CAM.
Length = 71
Score = 38.0 bits (88), Expect = 3e-05
Identities = 17/67 (25%), Positives = 30/67 (44%), Gaps = 12/67 (17%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFH--KYFQVHEWFLGNNTIKSKMEIDPATQKDAGY 63
+ C+AEG P P + W + D L+ + K ++ +++D + D G
Sbjct: 1 LVLECIAEGLPTPEVHWDRIDGPLSPNRTKKLNNNKT----------LQLDNVLESDDGE 50
Query: 64 YECVADN 70
Y C A+N
Sbjct: 51 YVCTAEN 57
>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 = 37.8 bits (88), Expect = 5e-05
Identities = 20/70 (28%), Positives = 28/70 (40%), Gaps = 9/70 (12%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKD 60
+ G+ +T C A G P P I W K D + + L +I +D
Sbjct: 14 LKGQNVTLECFALGNPVPQIKWRKVDGSMPSSAEISMSGAVL---------KIPNIQFED 64
Query: 61 AGYYECVADN 70
G YEC A+N
Sbjct: 65 EGTYECEAEN 74
>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 = 37.5 bits (87), Expect = 5e-05
Identities = 25/81 (30%), Positives = 33/81 (40%), Gaps = 8/81 (9%)
Query: 3 GRKITFFCMAEGFPRPHITWTK--DDIELTFHKYFQVHEWFLGNNTIKS--KMEIDPATQ 58
G +F C G P P ITW K E + V GN + + ++ I A
Sbjct: 1 GETASFHCDVTGRPPPEITWEKQVHGKENLIMRPNHVR----GNVVVTNIGQLVIYNAQP 56
Query: 59 KDAGYYECVADNPFAIDRRGF 79
+DAG Y C A N + R F
Sbjct: 57 QDAGLYTCTARNSGGLLRANF 77
>gnl|CDD|143168 cd04967, Ig1_Contactin, First Ig domain of contactin.
Ig1_Contactin: First Ig domain of contactins.
Contactins are neural cell adhesion molecules and are
comprised of six Ig domains followed by four
fibronectin type III(FnIII) domains anchored to the
membrane by glycosylphosphatidylinositol. The first
four Ig domains form the intermolecular binding
fragment, which arranges as a compact U-shaped module
via contacts between Ig domains 1 and 4, and between Ig
domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play
a part in the neuronal processes of neurite outgrowth,
axon guidance and fasciculation, and neuronal
migration. This group also includes contactin-1 and
contactin-5. The different contactins show different
expression patterns in the central nervous system.
During development and in adulthood, contactin-2 is
transiently expressed in subsets of central and
peripheral neurons. Contactin-5 is expressed
specifically in the rat postnatal nervous system,
peaking at about 3 weeks postnatal, and a lack of
contactin-5 (NB-2) results in an impairment of neuronal
activity in the rat auditory system. Contactin-5 is
highly expressed in the adult human brain in the
occipital lobe and in the amygdala. Contactin-1 is
differentially expressed in tumor tissues and may,
through a RhoA mechanism, facilitate invasion and
metastasis of human lung adenocarcinoma.
Length = 91
Score = 37.4 bits (87), Expect = 7e-05
Identities = 22/73 (30%), Positives = 32/73 (43%), Gaps = 12/73 (16%)
Query: 5 KITFFCMAEGFPRPHITWTKDDIELTF---HKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
K++ C A G P P W + E+ +Y V G N + S +P+ KDA
Sbjct: 21 KVSLNCRARGSPPPTYRWLMNGTEIDDEPDSRYSLV-----GGNLVIS----NPSKAKDA 71
Query: 62 GYYECVADNPFAI 74
G Y+C+A N
Sbjct: 72 GRYQCLASNIVGT 84
>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 = 37.2 bits (86), Expect = 7e-05
Identities = 18/61 (29%), Positives = 27/61 (44%), Gaps = 9/61 (14%)
Query: 10 CMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVAD 69
C A G PRP W K+ L +V + +K+ + D+G Y+CVA+
Sbjct: 21 CKASGNPRPAYRWLKNGQPLASENRIEV----EAGDLRITKLSLS-----DSGMYQCVAE 71
Query: 70 N 70
N
Sbjct: 72 N 72
>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 = 37.0 bits (86), Expect = 8e-05
Identities = 18/69 (26%), Positives = 27/69 (39%), Gaps = 4/69 (5%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
G + C A G PRP ITW KD ++ T+ ++ D+
Sbjct: 8 AGSTVRLKCPASGNPRPTITWLKDGKPFKKEHRIGGYKVRKKKWTLI----LESVVPSDS 63
Query: 62 GYYECVADN 70
G Y C+ +N
Sbjct: 64 GKYTCIVEN 72
>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 = 36.7 bits (85), Expect = 1e-04
Identities = 20/73 (27%), Positives = 31/73 (42%), Gaps = 5/73 (6%)
Query: 1 MLGRKITFFCMAEGF-PRP-HITWTKDDIELTFHKYFQVHEWFLGNNT--IKSKMEIDPA 56
+LG +T C+A GF P +TW K+ ELT + T + S++ + P+
Sbjct: 11 LLGGSVTLTCLATGFYPPDITVTWLKNGKELTSGVTTTPPV-PNSDGTYSVSSQLTVSPS 69
Query: 57 TQKDAGYYECVAD 69
Y CV
Sbjct: 70 DWNSGDTYTCVVT 82
>gnl|CDD|206066 pfam13895, Ig_2, Immunoglobulin domain. This domain contains
immunoglobulin-like domains.
Length = 80
Score = 35.9 bits (83), Expect = 2e-04
Identities = 21/69 (30%), Positives = 28/69 (40%), Gaps = 15/69 (21%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G +T C A G P P+ TW KD + L+ F N + +D+G
Sbjct: 14 GEDVTLTCSAPGNPPPNYTWYKDGVPLS-----SSQNGFFTPN----------VSAEDSG 58
Query: 63 YYECVADNP 71
Y CVA N
Sbjct: 59 TYTCVASNG 67
>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 = 35.7 bits (82), Expect = 2e-04
Identities = 16/65 (24%), Positives = 31/65 (47%), Gaps = 8/65 (12%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
I F C G P P + W K+ + YF++ + + +++ + D G+Y+
Sbjct: 2 IVFECEVTGKPTPTVKWVKNGDMVIPSDYFKIVK--------EHNLQVLGLVKSDEGFYQ 53
Query: 66 CVADN 70
C+A+N
Sbjct: 54 CIAEN 58
>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 = 34.6 bits (79), Expect = 5e-04
Identities = 21/66 (31%), Positives = 31/66 (46%), Gaps = 5/66 (7%)
Query: 10 CMAEGFPRPHITWTKDDIELTFH-KYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVA 68
C G P P I W K++ LT + +H+ +N + I AT++DAG+Y A
Sbjct: 5 CRVSGVPHPQIFWKKENESLTHNTDRVSMHQ----DNCGYICLLIQGATKEDAGWYTVSA 60
Query: 69 DNPFAI 74
N I
Sbjct: 61 KNEAGI 66
>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 = 34.9 bits (80), Expect = 6e-04
Identities = 23/70 (32%), Positives = 30/70 (42%), Gaps = 4/70 (5%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKY--FQVHEWFLGNNTIKSKMEIDPATQKD 60
GR +TF C A G P+P I W K+ + Y Q F + T + I + D
Sbjct: 1 GRTVTFQCEATGNPQPAIFWQKEGSQNLLFSYQPPQSSSRFSVSQT--GDLTITNVQRSD 58
Query: 61 AGYYECVADN 70
GYY C N
Sbjct: 59 VGYYICQTLN 68
>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 = 34.4 bits (79), Expect = 8e-04
Identities = 17/62 (27%), Positives = 30/62 (48%), Gaps = 5/62 (8%)
Query: 10 CMAEGFPRPHITWTKDDIELTFH-KYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVA 68
C P P I W K++ LT++ +++ +N + + I A ++DAG+Y A
Sbjct: 5 CRVSAIPPPQIFWKKNNEMLTYNTDRISLYQ----DNCGRICLLIQNANKEDAGWYTVSA 60
Query: 69 DN 70
N
Sbjct: 61 VN 62
>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 = 34.4 bits (79), Expect = 0.001
Identities = 22/74 (29%), Positives = 32/74 (43%), Gaps = 9/74 (12%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIELTF----HKYFQVHEWFLGNNTIKSKMEIDPA 56
+ G + C AEG P P I W KD + L + + L + + SK
Sbjct: 12 VRGGPVVLNCSAEGEPPPKIEWKKDGVLLNLVSDERRQQLPNGSLLITSVVHSKHN---- 67
Query: 57 TQKDAGYYECVADN 70
+ D G+Y+CVA N
Sbjct: 68 -KPDEGFYQCVAQN 80
>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 = 33.6 bits (77), Expect = 0.001
Identities = 20/74 (27%), Positives = 30/74 (40%), Gaps = 17/74 (22%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTI-----KSKMEIDPAT 57
G++ T C A G P P I W D +L + N++ ++I T
Sbjct: 1 GQRATLRCKARGDPEPAIHWISPDGKL------------ISNSSRTLVYDNGTLDILITT 48
Query: 58 QKDAGYYECVADNP 71
KD G + C+A N
Sbjct: 49 VKDTGSFTCIASNA 62
>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 = 34.1 bits (78), Expect = 0.001
Identities = 22/73 (30%), Positives = 30/73 (41%), Gaps = 4/73 (5%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIEL-TFHKYFQVHEWFLGNNTIKSKMEIDPA--TQK 59
G T C AEG P P I W K+ L T + H L + ++ + + +
Sbjct: 16 GDPATLNCKAEGRPTPTIQWLKNGQPLETDKDDPRSHRIVLPSGSL-FFLRVVHGRKGRS 74
Query: 60 DAGYYECVADNPF 72
D G Y CVA N
Sbjct: 75 DEGVYVCVAHNSL 87
>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 = 33.8 bits (77), Expect = 0.002
Identities = 21/70 (30%), Positives = 29/70 (41%), Gaps = 12/70 (17%)
Query: 5 KITFFCMAEGFPRPHITWTKDDIELTF---HKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
K+T C A P W + E+ F +Y V GN I +P +DA
Sbjct: 21 KVTLGCRARASPPATYRWKMNGTEIKFAPESRYTLVA----GNLVIN-----NPQKARDA 71
Query: 62 GYYECVADNP 71
G Y+C+A N
Sbjct: 72 GSYQCLAINR 81
>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 = 33.8 bits (77), Expect = 0.002
Identities = 25/81 (30%), Positives = 34/81 (41%), Gaps = 10/81 (12%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFL------GNNTIKSKMEI--- 53
G + F C +PHI W K +E KY ++ G NT +ME+
Sbjct: 1 GSTVEFVCKVYSDAQPHIQWLK-HVEKNGSKYGPDGLPYVTVLKTAGVNTTDKEMEVLYL 59
Query: 54 DPATQKDAGYYECVADNPFAI 74
T +DAG Y C+A N I
Sbjct: 60 RNVTFEDAGEYTCLAGNSIGI 80
>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 = 33.8 bits (77), Expect = 0.002
Identities = 19/71 (26%), Positives = 32/71 (45%), Gaps = 6/71 (8%)
Query: 4 RKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGY 63
+K+ C A G P P W ++ E+ ++ + GN I +P+ KD+G
Sbjct: 20 KKVILNCEARGNPVPTYRWLRNGTEIDTESDYR-YSLIDGNLIIS-----NPSEVKDSGR 73
Query: 64 YECVADNPFAI 74
Y+C+A N
Sbjct: 74 YQCLATNSIGS 84
>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 = 33.9 bits (77), Expect = 0.002
Identities = 18/68 (26%), Positives = 27/68 (39%), Gaps = 5/68 (7%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G F C +G P P +TW ++ + + Q+ + KS EI D G
Sbjct: 18 GESARFSCDVDGEPAPTVTWMREGQIIVSSQRHQI-----TSTEYKSTFEISKVQMSDEG 72
Query: 63 YYECVADN 70
Y V +N
Sbjct: 73 NYTVVVEN 80
>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 = 33.7 bits (77), Expect = 0.002
Identities = 21/74 (28%), Positives = 33/74 (44%), Gaps = 8/74 (10%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDD--IELTFHKYFQVHEWFLGNNTIKSKMEIDPATQ 58
M G+ + C G P P + W K+D IEL+ H ++ + + TIK T
Sbjct: 14 MEGKTLNLTCTVFGNPDPEVIWFKNDQDIELSEHYSVKLEQGKYASLTIKG------VTS 67
Query: 59 KDAGYYECVADNPF 72
+D+G Y N +
Sbjct: 68 EDSGKYSINVKNKY 81
>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 = 33.1 bits (76), Expect = 0.002
Identities = 16/66 (24%), Positives = 22/66 (33%), Gaps = 8/66 (12%)
Query: 7 TFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQ-KDAGYYE 65
C AEG P+P ITW + + + + I Q D Y+
Sbjct: 5 RLDCEAEGIPQPTITWRLNGVPIEELPPDPR-------RRVDGGTLILSNVQPNDTAVYQ 57
Query: 66 CVADNP 71
C A N
Sbjct: 58 CNASNV 63
>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 = 33.0 bits (75), Expect = 0.003
Identities = 21/70 (30%), Positives = 31/70 (44%), Gaps = 12/70 (17%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSK---MEIDPATQKDAG 62
+T C +G PRP W +D L+ + GN ++ SK + + A D+G
Sbjct: 1 VTLRCHIDGHPRPTYQWFRDGTPLSDGQ---------GNYSVSSKERTLTLRSAGPDDSG 51
Query: 63 YYECVADNPF 72
Y C A N F
Sbjct: 52 LYYCCAHNAF 61
>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 = 32.9 bits (75), Expect = 0.004
Identities = 24/83 (28%), Positives = 34/83 (40%), Gaps = 12/83 (14%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFL-GNNTIKSKMEIDPATQK 59
+ +IT C AEG P P ITW + F + L G ++ + T K
Sbjct: 14 VELEQITLTCEAEGDPIPEITWR------RATRNFSEGDKSLDGRIVVRGHARVSSLTLK 67
Query: 60 -----DAGYYECVADNPFAIDRR 77
DAG Y+C A N D++
Sbjct: 68 DVQLTDAGRYDCEASNRIGGDQQ 90
>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 = 32.3 bits (73), Expect = 0.004
Identities = 18/72 (25%), Positives = 29/72 (40%), Gaps = 16/72 (22%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTI----KSKMEIDPATQ 58
G ++ C + P+P +W+K E + N+ I +EI T+
Sbjct: 1 GGRVIIECKPKAAPKPKFSWSKGT------------ELLVNNSRISIWDDGSLEILNITK 48
Query: 59 KDAGYYECVADN 70
D G Y C A+N
Sbjct: 49 LDEGSYTCFAEN 60
>gnl|CDD|143212 cd05735, Ig8_DSCAM, Eight immunoglobulin (Ig) domain of Down
Syndrome Cell Adhesion molecule (DSCAM). Ig8_DSCAM:
the eight immunoglobulin (Ig) domain of Down Syndrome
Cell Adhesion molecule (DSCAM). DSCAM is a cell
adhesion molecule expressed largely in the developing
nervous system. The gene encoding DSCAM is located at
human chromosome 21q22, the locus associated with the
mental retardation phenotype of Down Syndrome. DSCAM is
predicted to be the largest member of the IG
superfamily. It has been demonstrated that DSCAM can
mediate cation-independent homophilic intercellular
adhesion.
Length = 88
Score = 32.3 bits (73), Expect = 0.007
Identities = 23/76 (30%), Positives = 37/76 (48%), Gaps = 4/76 (5%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDD--IELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKD 60
G+K C A G + W K+D I +Y V +G+ I S ++I P ++D
Sbjct: 1 GQKKEMSCTAHGEKPIIVRWEKEDRIINPEMSRYL-VSTKEVGDEVI-STLQILPTVRED 58
Query: 61 AGYYECVADNPFAIDR 76
+G++ C A N + DR
Sbjct: 59 SGFFSCHAINSYGEDR 74
>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 = 31.8 bits (72), Expect = 0.007
Identities = 18/60 (30%), Positives = 25/60 (41%), Gaps = 14/60 (23%)
Query: 14 GFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKS--KMEIDPATQKDAGYYECVADNP 71
G+P P + W K+ + N+T K + I T+KDAG Y V NP
Sbjct: 9 GYPPPEVKWYKNGQLIV------------LNHTFKRGVHLTIYEVTEKDAGNYTVVLTNP 56
>gnl|CDD|143177 cd04976, Ig2_VEGFR, Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR).
Ig2_VEGFR: Second immunoglobulin (Ig)-like domain of
vascular endothelial growth factor receptor (VEGFR).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of
three members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGFRs bind VEGFs with high affinity
at the Ig-like domains. VEGF-A is important to the
growth and maintenance of vascular endothelial cells
and to the development of new blood- and
lymphatic-vessels in physiological and pathological
states. VEGFR-2 is a major mediator of the mitogenic,
angiogenic and microvascular permeability-enhancing
effects of VEGF-A. VEGFR-1 may play an inhibitory part
in these processes by binding VEGF and interfering with
its interaction with VEGFR-2. VEGFR-1 has a signaling
role in mediating monocyte chemotaxis. VEGFR-2 and -1
may mediate a chemotactic and a survival signal in
hematopoietic stem cells or leukemia cells. VEGFR-3 has
been shown to be involved in tumor angiogenesis and
growth.
Length = 71
Score = 31.2 bits (71), Expect = 0.011
Identities = 17/60 (28%), Positives = 24/60 (40%), Gaps = 13/60 (21%)
Query: 14 GFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSK--MEIDPATQKDAGYYECVADNP 71
+P P I W K+ ++ N T KS + I T++DAG Y V N
Sbjct: 9 AYPPPEIQWYKNGKLIS-----------EKNRTKKSGHSLTIKDVTEEDAGNYTVVLTNK 57
>gnl|CDD|143231 cd05754, Ig3_Perlecan_like, Third immunoglobulin (Ig)-like domain
found in Perlecan and similar proteins.
Ig3_Perlecan_like: domain similar to the third
immunoglobulin (Ig)-like domain found in Perlecan.
Perlecan is a large multi-domain heparin sulfate
proteoglycan, important in tissue development and
organogenesis. Perlecan can be represented as 5 major
portions; its fourth major portion (domain IV) is a
tandem repeat of immunoglobulin-like domains
(Ig2-Ig15), which can vary in size due to alternative
splicing. Perlecan binds many cellular and
extracellular ligands. Its domain IV region has many
binding sites. Some of these have been mapped at the
level of individual Ig-like domains, including a site
restricted to the Ig5 domain for heparin/sulfatide, a
site restricted to the Ig3 domain for nidogen-1 and
nidogen-2, a site restricted to Ig4-5 for fibronectin,
and sites restricted to Ig2 and to Ig13-15 for
fibulin-2.
Length = 85
Score = 31.0 bits (70), Expect = 0.020
Identities = 19/74 (25%), Positives = 26/74 (35%), Gaps = 12/74 (16%)
Query: 3 GRKITFFCMAEG-FPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDA 61
G ++F C A+ P + WT+ L + + F G TI DA
Sbjct: 16 GADVSFICRAKSKSPAYTLVWTRVGGGLPS----RAMD-FNGILTI------RNVQLSDA 64
Query: 62 GYYECVADNPFAID 75
G Y C N D
Sbjct: 65 GTYVCTGSNMLDTD 78
>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 = 30.6 bits (69), Expect = 0.025
Identities = 18/72 (25%), Positives = 32/72 (44%), Gaps = 4/72 (5%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKD 60
M G+ + C G P P ++W K+D L ++ V + G + + I + +D
Sbjct: 14 MEGKTLNLTCTVFGDPDPEVSWLKNDQALALSDHYNV-KVEQGK---YASLTIKGVSSED 69
Query: 61 AGYYECVADNPF 72
+G Y V N +
Sbjct: 70 SGKYGIVVKNKY 81
>gnl|CDD|143178 cd04977, Ig1_NCAM-1_like, First immunoglobulin (Ig)-like domain
of neural cell adhesion molecule NCAM-1 and similar
proteins. Ig1_NCAM-1 like: first immunoglobulin
(Ig)-like domain of neural cell adhesion molecule
NCAM-1. NCAM-1 plays important roles in the development
and regeneration of the central nervous system, in
synaptogenesis and neural migration. NCAM mediates
cell-cell and cell-substratum recognition and adhesion
via homophilic (NCAM-NCAM), and heterophilic
(NCAM-nonNCAM), interactions. NCAM is expressed as
three major isoforms having different intracellular
extensions. The extracellular portion of NCAM has five
N-terminal Ig-like domains and two fibronectin type III
domains. The double zipper adhesion complex model for
NCAM homophilic binding involves the Ig1, Ig2, and Ig3
domains. By this model, Ig1 and Ig2 mediate
dimerization of NCAM molecules situated on the same
cell surface (cis interactions), and Ig3 domains
mediate interactions between NCAM molecules expressed
on the surface of opposing cells (trans interactions),
through binding to the Ig1 and Ig2 domains. The
adhesive ability of NCAM is modulated by the addition
of polysialic acid chains to the fifth Ig-like domain.
Also included in this group is NCAM-2 (also known as
OCAM/mamFas II and RNCAM). NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE).
Length = 92
Score = 30.2 bits (68), Expect = 0.038
Identities = 21/70 (30%), Positives = 34/70 (48%), Gaps = 6/70 (8%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDDIE-LTFHKYFQVHEWFLGNNTIKSKMEIDPATQKD 60
+G F C G P+ I+W + E L + V + N+ ++S + I A +D
Sbjct: 14 VGESKFFLCQVIGEPK-DISWFSPNGEKLVTQQQISVVQ----NDDVRSTLTIYNANIED 68
Query: 61 AGYYECVADN 70
AG Y+CVA +
Sbjct: 69 AGIYKCVATD 78
>gnl|CDD|143216 cd05739, Ig3_RPTP_IIa_LAR_like, Third immunoglobulin (Ig)-like
domain of the receptor protein tyrosine phosphatase
(RPTP)-F, also known as LAR. Ig3_RPTP_IIa_LAR_like:
domain similar to the third immunoglobulin (Ig)-like
domain found in the receptor protein tyrosine
phosphatase (RPTP)-F, also known as LAR. LAR belongs to
the RPTP type IIa subfamily. Members of this subfamily
are cell adhesion molecule-like proteins involved in
central nervous system (CNS) development. They have
large extracellular portions, comprised of multiple
IG-like domains and two to nine fibronectin type III
(FNIII) domains, and a cytoplasmic portion having two
tandem phosphatase domains. Included in this group is
Drosophila LAR (DLAR).
Length = 69
Score = 29.9 bits (67), Expect = 0.039
Identities = 11/28 (39%), Positives = 15/28 (53%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELT 30
G + C+A G P P++ W K ELT
Sbjct: 1 GGSVNLTCVAVGAPMPYVKWMKGGEELT 28
>gnl|CDD|143173 cd04972, Ig_TrkABC_d4, Fourth domain (immunoglobulin-like) of Trk
receptors TrkA, TrkB and TrkC. TrkABC_d4: the fourth
domain of Trk receptors TrkA, TrkB and TrkC, this is an
immunoglobulin (Ig)-like domain which binds to
neurotrophin. The Trk family of receptors are tyrosine
kinase receptors. They are activated by dimerization,
leading to autophosphorylation of intracellular
tyrosine residues, and triggering the signal
transduction pathway. TrkA, TrkB, and TrkC share
significant sequence homology and domain organization.
The first three domains are leucine-rich domains. The
fourth and fifth domains are Ig-like domains playing a
part in ligand binding. TrkA, Band C mediate the
trophic effects of the neurotrophin Nerve growth factor
(NGF) family. TrkA is recognized by NGF. TrKB is
recognized by brain-derived neurotrophic factor (BDNF)
and neurotrophin (NT)-4. TrkC is recognized by NT-3.
NT-3 is promiscuous as in some cell systems it
activates TrkA and TrkB receptors. TrkA is a receptor
found in all major NGF targets, including the
sympathetic, trigeminal, and dorsal root ganglia,
cholinergic neurons of the basal forebrain and the
striatum. TrKB transcripts are found throughout
multiple structures of the central and peripheral
nervous systems. The TrkC gene is expressed throughout
the mammalian nervous system.
Length = 90
Score = 29.8 bits (67), Expect = 0.051
Identities = 15/66 (22%), Positives = 22/66 (33%), Gaps = 7/66 (10%)
Query: 7 TFFCMAEGFPRPHITWTKD-DIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
T C AEG P P + W I + + N + + T +
Sbjct: 19 TIRCTAEGSPLPKVEWIIAGLIVIQTRTDTLETTVDIYNLQLSN------ITSETQTTVT 72
Query: 66 CVADNP 71
C A+NP
Sbjct: 73 CTAENP 78
>gnl|CDD|143174 cd04973, Ig1_FGFR, First immunoglobulin (Ig)-like domain of
fibroblast growth factor receptor (FGFR). Ig1_FGFR:
The first immunoglobulin (Ig)-like domain of fibroblast
growth factor receptor (FGFR). Fibroblast growth
factors (FGFs) participate in morphogenesis,
development, angiogenesis, and wound healing. These
FGF-stimulated processes are mediated by four FGFR
tyrosine kinases (FGRF1-4). FGFRs are comprised of an
extracellular portion consisting of three Ig-like
domains, a transmembrane helix, and a cytoplasmic
portion having protein tyrosine kinase activity. The
highly conserved Ig-like domains 2 and 3, and the
linker region between D2 and D3 define a general
binding site for all FGFs.
Length = 79
Score = 29.5 bits (66), Expect = 0.052
Identities = 16/54 (29%), Positives = 24/54 (44%), Gaps = 13/54 (24%)
Query: 20 ITWTKDDIELTFHKYFQVHEWFLGNNT--IKSKMEIDPATQKDAGYYECVADNP 71
I WTKD ++L N T +++I A +D+G Y CV +P
Sbjct: 25 INWTKDGVQLG-----------ENNRTRITGEEVQIKDAVPRDSGLYACVTSSP 67
>gnl|CDD|143219 cd05742, Ig1_VEGFR_like, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor (R)
and similar proteins. Ig1_VEGFR_like: first
immunoglobulin (Ig)-like domain of vascular endothelial
growth factor (VEGF) receptor(R) related proteins. The
VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of
three members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGF-A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but
binds other members of the VEGF family (VEGF-C and -D).
VEGFRs bind VEGFs with high affinity with the IG-like
domains. VEGF-A is important to the growth and
maintenance of vascular endothelial cells and to the
development of new blood- and lymphatic-vessels in
physiological and pathological states. VEGFR-2 is a
major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A.
VEGFR-1 may play an inhibitory part in these processes
by binding VEGF and interfering with its interaction
with VEGFR-2. VEGFR-1 has a signaling role in mediating
monocyte chemotaxis. VEGFR-2 and -1 may mediate a
chemotactic and a survival signal in hematopoietic stem
cells or leukemia cells. VEGFR-3 has been shown to be
involved in tumor angiogenesis and growth. This group
also contains alpha-type platelet-derived growth factor
receptor precursor (PDGFR)-alpha (CD140a), and
PDGFR-beta (CD140b). PDGFRs alpha and beta have an
extracellular component with five Ig-like domains, a
transmembrane segment, and a cytoplasmic portion that
has protein tyrosine kinase activity.
Length = 84
Score = 29.7 bits (67), Expect = 0.059
Identities = 10/26 (38%), Positives = 14/26 (53%)
Query: 45 NTIKSKMEIDPATQKDAGYYECVADN 70
+ S + I AT KD+G Y C A +
Sbjct: 45 TELSSTLTIPNATLKDSGTYTCAASS 70
>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 = 29.6 bits (66), Expect = 0.070
Identities = 21/79 (26%), Positives = 30/79 (37%), Gaps = 15/79 (18%)
Query: 1 MLGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSK---MEIDPAT 57
+ G+ +T C A G P P I W K + E I ++I
Sbjct: 14 LKGQNVTLECFALGNPVPVIRWRK------------ILEPMPATAEISMSGAVLKIFNIQ 61
Query: 58 QKDAGYYECVADNPFAIDR 76
+D G YEC A+N D+
Sbjct: 62 PEDEGTYECEAENIKGKDK 80
>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 = 29.3 bits (66), Expect = 0.088
Identities = 17/63 (26%), Positives = 26/63 (41%), Gaps = 19/63 (30%)
Query: 16 PRPHITWTKDD--IELTFHKYFQVHE-----WFLGNNTIKSKMEIDPATQKDAGYYECVA 68
P ++TW K D + + ++H+ WFL PA +D+G Y CV
Sbjct: 32 PGLNLTWYKSDGKTPIPTEERSRMHQQKDLLWFL------------PAALEDSGLYTCVV 79
Query: 69 DNP 71
N
Sbjct: 80 RNS 82
>gnl|CDD|143250 cd05773, Ig8_hNephrin_like, Eighth immunoglobulin-like domain of
nephrin. Ig8_hNephrin_like: domain similar to the
eighth immunoglobulin-like domain in human nephrin.
Nephrin is an integral component of the slit diaphragm,
and is a central component of the glomerular
ultrafilter. Nephrin plays a structural role, and has a
role in signaling. Nephrin is a transmembrane protein
having a short intracellular portion, and an
extracellular portion comprised of eight Ig-like
domains, and one fibronectin type III-like domain. The
extracellular portions of nephrin, from neighboring
foot processes of separate podocyte cells, may interact
with each other, and in association with other
components of the slit diaphragm, form a porous
molecular sieve within the slit pore. The
intracellular portion of nephrin is associated with
linker proteins, which connect nephrin to the actin
cytoskeleton. The intracellular portion is tyrosine
phosphorylated, and mediates signaling from the slit
diaphragm into the podocytes.
Length = 109
Score = 29.5 bits (66), Expect = 0.10
Identities = 21/79 (26%), Positives = 27/79 (34%), Gaps = 19/79 (24%)
Query: 7 TFFCMAEGFPRPHITWTKDDIEL----------TFHKYFQVHEWFLGNNTIKSKMEIDPA 56
C A+G PR W K+ + L T H VH L TI I+ +
Sbjct: 27 NLVCQAQGVPRVQFRWAKNGVPLDLGNPRYEETTEHT-GTVHTSIL---TI-----INVS 77
Query: 57 TQKDAGYYECVADNPFAID 75
D + C A N D
Sbjct: 78 AALDYALFTCTAHNSLGED 96
>gnl|CDD|143278 cd05870, Ig5_NCAM-2, Fifth immunoglobulin (Ig)-like domain of
Neural Cell Adhesion Molecule NCAM-2 (also known as
OCAM/mamFas II and RNCAM). Ig5_NCAM-2: the fifth
immunoglobulin (Ig)-like domain of Neural Cell Adhesion
Molecule NCAM-2 (also known as OCAM/mamFas II and
RNCAM). NCAM-2 is organized similarly to NCAM ,
including five N-terminal Ig-like domains and two
fibronectin type III domains. NCAM-2 is differentially
expressed in the developing and mature olfactory
epithelium (OE), and may function like NCAM, as an
adhesion molecule.
Length = 98
Score = 29.2 bits (65), Expect = 0.12
Identities = 12/29 (41%), Positives = 13/29 (44%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTF 31
T C AEG P P ITW + TF
Sbjct: 16 NGAATLSCKAEGEPIPEITWKRASDGHTF 44
>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 = 0.12
Identities = 9/20 (45%), Positives = 11/20 (55%)
Query: 3 GRKITFFCMAEGFPRPHITW 22
G + F C+A G P P I W
Sbjct: 1 GETVEFTCVATGVPTPIINW 20
>gnl|CDD|143238 cd05761, Ig2_Necl-1-4_like, Second immunoglobulin (Ig)-like
domain of the nectin-like molecules Necl-1 - Necl-4
(also known as cell adhesion molecules CADM3, CADM1,
CADM2, and CADM4, respectively). Ig2_Necl-1-4_like:
domain similar to the second immunoglobulin (Ig)-like
domain of the nectin-like molecules Necl-1 (also known
as cell adhesion molecule 3 (CADM3)), Necl-2 (CADM1),
Necl-3 (CADM2) and Necl-4 (CADM4). These nectin-like
molecules have similar domain structures to those of
nectins. At least five nectin-like molecules have been
identified (Necl-1 - Necl-5). These have an
extracellular region containing three Ig-like domains,
one transmembrane region, and one cytoplasmic region.
The N-terminal Ig-like domain of the extracellular
region belongs to the V-type subfamily of Ig domains,
is essential to cell-cell adhesion, and plays a part in
the interaction with the envelope glycoprotein D of
various viruses. Necl-1 and Necl-2 have
Ca(2+)-independent homophilic and heterophilic
cell-cell adhesion activity. Necl-1 is specifically
expressed in neural tissue and is important to the
formation of synapses, axon bundles, and myelinated
axons. Necl-2 is expressed in a wide variety of
tissues, and is a putative tumour suppressor gene,
which is downregulated in aggressive neuroblastoma.
Necl-3 has been shown to accumulate in tissues of the
central and peripheral nervous system, where it is
expressed in ependymal cells and myelinated axons. It
is observed at the interface between the axon shaft and
the myelin sheath. Necl-4 is expressed on Schwann
cells, and plays a key part in initiating peripheral
nervous system (PNS) myelination. Necl-4 participates
in cell-cell adhesion and is proposed to play a role in
tumor suppression.
Length = 82
Score = 28.5 bits (64), Expect = 0.14
Identities = 19/72 (26%), Positives = 28/72 (38%), Gaps = 10/72 (13%)
Query: 5 KITFFCMAEGF-PRPHITWTKDDIELTFHKYFQVHEW---FLGNNTIKSKMEIDPATQKD 60
++ C + G P I W K D EL K + E F T+ S + ++D
Sbjct: 1 EVELTCTSSGSKPAATIRWFKGDKELKGVKLKEEDENGKTF----TVTSSLRF-QVDRED 55
Query: 61 AGY-YECVADNP 71
G C D+P
Sbjct: 56 DGAPIICRVDHP 67
>gnl|CDD|143275 cd05867, Ig4_L1-CAM_like, Fourth immunoglobulin (Ig)-like domain
of the L1 cell adhesion molecule (CAM).
Ig4_L1-CAM_like: fourth immunoglobulin (Ig)-like
domain of the L1 cell adhesion molecule (CAM). L1 is
comprised of an extracellular region having six Ig-like
domains and five fibronectin type III domains, a
transmembrane region and an intracellular domain. L1 is
primarily expressed in the nervous system and is
involved in its development and function. L1 is
associated with an X-linked recessive disorder,
X-linked hydrocephalus, MASA syndrome, or spastic
paraplegia type 1, that involves abnormalities of
axonal growth. This group also contains the chicken
neuron-glia cell adhesion molecule, Ng-CAM.
Length = 76
Score = 28.3 bits (63), Expect = 0.14
Identities = 8/14 (57%), Positives = 10/14 (71%)
Query: 10 CMAEGFPRPHITWT 23
C EG P P+ITW+
Sbjct: 8 CQVEGIPTPNITWS 21
>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 = 28.4 bits (63), Expect = 0.15
Identities = 9/16 (56%), Positives = 9/16 (56%)
Query: 10 CMAEGFPRPHITWTKD 25
C A G P P I W KD
Sbjct: 5 CAATGHPTPQIAWQKD 20
>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 = 28.3 bits (63), Expect = 0.18
Identities = 19/70 (27%), Positives = 29/70 (41%), Gaps = 4/70 (5%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
+ F C A G P P + W K+ E F + ++ + + N ME D G
Sbjct: 9 ANTVKFRCPAAGNPTPTMRWLKNGKE--FKQEHRIGGYKVRNQHWSLIME--SVVPSDKG 64
Query: 63 YYECVADNPF 72
Y CV +N +
Sbjct: 65 NYTCVVENEY 74
>gnl|CDD|219745 pfam08205, C2-set_2, CD80-like C2-set immunoglobulin domain.
These domains belong to the immunoglobulin superfamily.
Length = 89
Score = 28.2 bits (63), Expect = 0.23
Identities = 10/32 (31%), Positives = 13/32 (40%), Gaps = 1/32 (3%)
Query: 3 GRKITFFCMAE-GFPRPHITWTKDDIELTFHK 33
++ C + G P P ITW D EL
Sbjct: 14 NLEVVATCSSAGGKPAPRITWYLDGRELEAIT 45
>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 = 28.2 bits (63), Expect = 0.25
Identities = 21/81 (25%), Positives = 30/81 (37%), Gaps = 10/81 (12%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHK-------YFQVHEWFLGNNTIKS--KMEI 53
G + F C +PHI W K +E+ K Y V + N T + +
Sbjct: 1 GSDVEFHCKVYSDAQPHIQWLKH-VEVNGSKYGPDGLPYVTVLKVAGINTTDNESEVLYL 59
Query: 54 DPATQKDAGYYECVADNPFAI 74
+ DAG Y C+A N
Sbjct: 60 RNVSFDDAGEYTCLAGNSIGP 80
>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 = 27.2 bits (60), Expect = 0.43
Identities = 19/72 (26%), Positives = 27/72 (37%), Gaps = 4/72 (5%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTI--KSKMEIDPATQKDAGY 63
+T C AEG+P P I W + H G + + I ++D+GY
Sbjct: 1 VTLNCSAEGYPPPTIVWKHS--KGRGHPQHTHTCCLAGRIQLLSNGSLLIKHVLEEDSGY 58
Query: 64 YECVADNPFAID 75
Y C N D
Sbjct: 59 YLCKVSNDVGAD 70
>gnl|CDD|143234 cd05757, Ig2_IL1R_like, Second immunoglobulin (Ig)-like domain of
interleukin-1 receptor (IL1R) and similar proteins.
Ig2_IL1R_like: domain similar to the second
immunoglobulin (Ig)-like domain of interleukin-1
receptor (IL1R). IL-1 alpha and IL-1 beta are
cytokines which participate in the regulation of
inflammation, immune responses, and hematopoiesis.
These cytokines bind to the IL-1 receptor type 1
(IL1R1), which is activated on additional association
with an accessory protein, IL1RAP. IL-1 also binds a
second receptor designated type II (IL1R2). Mature
IL1R1 consists of three IG-like domains, a
transmembrane domain, and a large cytoplasmic domain.
Mature IL1R2 is organized similarly except that it has
a short cytoplasmic domain. The latter does not
initiate signal transduction. A naturally occurring
cytokine IL-1RA (IL-1 receptor antagonist) is widely
expressed and binds to IL-1 receptors, inhibiting the
binding of IL-1 alpha and IL-1 beta. This group also
contains ILIR-like 1 (IL1R1L) which maps to the same
chromosomal location as IL1R1 and IL1R2.
Length = 92
Score = 26.9 bits (60), Expect = 0.62
Identities = 15/51 (29%), Positives = 19/51 (37%), Gaps = 9/51 (17%)
Query: 18 PHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVA 68
P + W KD L E SK+ I T++DAG Y C
Sbjct: 30 PPVQWYKDCKLL---------EGDRKRFVKGSKLLIQNVTEEDAGNYTCKL 71
>gnl|CDD|143276 cd05868, Ig4_NrCAM, Fourth immunoglobulin (Ig)-like domain of
NrCAM (NgCAM-related cell adhesion molecule). Ig4_
NrCAM: fourth immunoglobulin (Ig)-like domain of NrCAM
(NgCAM-related cell adhesion molecule). NrCAM belongs
to the L1 subfamily of cell adhesion molecules (CAMs)
and is comprised of an extracellular region having six
IG-like domains and five fibronectin type III domains,
a transmembrane region and an intracellular domain.
NrCAM is primarily expressed in the nervous system.
Length = 76
Score = 26.5 bits (58), Expect = 0.72
Identities = 9/20 (45%), Positives = 11/20 (55%)
Query: 3 GRKITFFCMAEGFPRPHITW 22
G T C A G P+P I+W
Sbjct: 1 GEDGTLICRANGNPKPSISW 20
>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 = 26.5 bits (58), Expect = 0.75
Identities = 19/67 (28%), Positives = 29/67 (43%), Gaps = 5/67 (7%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDA--GY 63
I C A+G P P +WT++ K +V + NT + I + +A G
Sbjct: 1 IVIQCEAKGKPPPSFSWTRNGTHFDIDKDPKV---TMKPNTGTLVINIMNGEKAEAYEGV 57
Query: 64 YECVADN 70
Y+C A N
Sbjct: 58 YQCTARN 64
>gnl|CDD|143300 cd05892, Ig_Myotilin_C, C-terminal immunoglobulin (Ig)-like
domain of myotilin. Ig_Myotilin_C: C-terminal
immunoglobulin (Ig)-like domain of myotilin. Mytolin
belongs to the palladin-myotilin-myopalladin family.
Proteins belonging to the latter family contain
multiple Ig-like domains and function as scaffolds,
modulating actin cytoskeleton. Myotilin is most
abundant in skeletal and cardiac muscle, and is
involved in maintaining sarcomere integrity. It binds
to alpha-actinin, filamin and actin. Mutations in
myotilin lead to muscle disorders.
Length = 75
Score = 26.5 bits (58), Expect = 0.89
Identities = 15/65 (23%), Positives = 28/65 (43%), Gaps = 11/65 (16%)
Query: 10 CMAEGFPRPHITWTKDDIELTFH----KYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYE 65
C P P I W +++ + ++ +Q +N+ + + I +KDAG+Y
Sbjct: 5 CQISAIPPPKIFWKRNNEMVQYNTDRISLYQ-------DNSGRVTLLIKNVNKKDAGWYT 57
Query: 66 CVADN 70
A N
Sbjct: 58 VSAVN 62
>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 = 26.2 bits (58), Expect = 0.89
Identities = 8/23 (34%), Positives = 12/23 (52%)
Query: 6 ITFFCMAEGFPRPHITWTKDDIE 28
I C A+G P P +WT++
Sbjct: 1 IVIKCEAKGNPPPTFSWTRNGTH 23
>gnl|CDD|143249 cd05772, IgC_SIRP, Signal-regulatory protein (SIRP)
immunoglobulin-like domain. IgC_SIRP:
Immunoglobulin-like domain of signal-regulatory
proteins (SIRP); the signal-regulatory proteins (SIRP)
are Ig-like cell surface receptors detected in
hematopoietic and non-hematopoietic cells. While their
extracellular domains are similar, SIRP are classified
as alpha or beta based on the length of the
intracytoplasmic domain. Those having a 110- to
113-amino acid tail are classified as SIRP-alpha, and
those having a 5-amino acid tail as SIRP-beta.
SIRP-alpha and SIRP-beta molecules are thought to have
complementary roles in signal regulation: SIRP-alpha
inhibit signalling via their immunoreceptor tyrosine
(IT)-based inhibition motifs while SIRP-beta are
activating. SIRP-beta lack the cytoplasmic domainof
SIRP-alpha, and associate with at least one other
transmembrane protein (DAP-12 or KARAP). The IT-based
activation motifs within DAP-12's cytoplasmic domain
may link SIRP-beta to the activating machinery.
Length = 111
Score = 26.8 bits (59), Expect = 0.96
Identities = 14/56 (25%), Positives = 21/56 (37%), Gaps = 19/56 (33%)
Query: 3 GRKITFFCMAEGF-PRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKM-EIDPA 56
G+ + F C A GF PR DI + +W N + ++ I P
Sbjct: 21 GQSVNFTCSAHGFSPR--------DITV---------KWLKNGNELSAEQPNITPE 59
>gnl|CDD|143176 cd04975, Ig4_SCFR_like, Fourth immunoglobulin (Ig)-like domain of
stem cell factor receptor (SCFR) and similar proteins.
Ig4_SCFR_like; fourth immunoglobulin (Ig)-like domain
of stem cell factor receptor (SCFR). In addition to
SCFR this group also includes the fourth Ig domain of
platelet-derived growth factor receptors (PDGFR), alpha
and beta, the fourth Ig domain of macrophage colony
stimulating factor (M-CSF), and the Ig domain of the
receptor tyrosine kinase KIT. SCFR and the PDGFR alpha
and beta have similar organization: an extracellular
component having five Ig-like domains, a transmembrane
segment, and a cytoplasmic portion having protein
tyrosine kinase activity. SCFR and its ligand SCF are
critical for normal hematopoiesis, mast cell
development, melanocytes and gametogenesis. SCF binds
to the second and third Ig-like domains of SCFR, this
fourth Ig-like domain participates in SCFR
dimerization, which follows ligand binding. Deletion of
this fourth SCFR_Ig-like domain abolishes the
ligand-induced dimerization of SCFR and completely
inhibits signal transduction. PDGF is a potent mitogen
for connective tissue cells. PDGF-stimulated processes
are mediated by three different PDGFs (PDGF-A,-B, and
C). PDGFR alpha binds to all three PDGFs, whereas the
PDGFR beta, binds only to PDGF-B. In mice, PDGFR alpha,
and PDGFR beta, are essential for normal development.
Length = 101
Score = 26.5 bits (59), Expect = 1.2
Identities = 21/79 (26%), Positives = 31/79 (39%), Gaps = 1/79 (1%)
Query: 2 LGRKITFFCMAEGFPRP-HITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKD 60
LG + E +P P HI WT D+ LT V S++++ + +
Sbjct: 17 LGENLNLVVEVEAYPPPPHINWTYDNRTLTNKLTEIVTSENESEYRYVSELKLVRLKESE 76
Query: 61 AGYYECVADNPFAIDRRGF 79
AG Y +A N A F
Sbjct: 77 AGTYTFLASNSDASKSLTF 95
>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 = 26.2 bits (58), Expect = 1.2
Identities = 16/66 (24%), Positives = 25/66 (37%), Gaps = 2/66 (3%)
Query: 14 GFPRPHITWTKDDIELTFHKYFQV--HEWFLGNNTIKSKMEIDPATQKDAGYYECVADNP 71
G P+P +TW + L Y + H ++ D T + G Y VA N
Sbjct: 9 GNPKPTLTWYHNGAVLNESDYIRTEIHYEVTTPTEYHGCLQFDNPTHVNNGNYTLVASNE 68
Query: 72 FAIDRR 77
+ D +
Sbjct: 69 YGQDSK 74
>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 = 26.0 bits (57), Expect = 1.4
Identities = 21/83 (25%), Positives = 35/83 (42%), Gaps = 9/83 (10%)
Query: 2 LGRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIK-----SKMEIDPA 56
L F E +P P I W KD+ L + E + ++ SK+++ A
Sbjct: 17 LHEVKEFVVEVEAYPPPQIRWLKDNRTLIENL----TEITTSEHNVQETRYVSKLKLIRA 72
Query: 57 TQKDAGYYECVADNPFAIDRRGF 79
++D+G Y +A N A+ F
Sbjct: 73 KEEDSGLYTALAQNEDAVKSYTF 95
>gnl|CDD|165173 PHA02826, PHA02826, IL-1 receptor-like protein; Provisional.
Length = 227
Score = 26.4 bits (58), Expect = 1.5
Identities = 18/69 (26%), Positives = 26/69 (37%), Gaps = 12/69 (17%)
Query: 3 GRKITFFCM-----AEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPAT 57
G+ C + F +TW K+ + + Q L NN S + I AT
Sbjct: 144 GKDSKLHCYGTDGISSTFKDYTLTWYKNGNIVLYTDRIQ-----LRNN--NSTLVIKSAT 196
Query: 58 QKDAGYYEC 66
D+G Y C
Sbjct: 197 HDDSGIYTC 205
>gnl|CDD|143270 cd05862, Ig1_VEGFR, First immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
IG1_VEGFR: first immunoglobulin (Ig)-like domain of
vascular endothelial growth factor (VEGF) receptor(R).
The VEGFRs have an extracellular component with seven
Ig-like domains, a transmembrane segment, and an
intracellular tyrosine kinase domain interrupted by a
kinase-insert domain. The VEGFR family consists of
three members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1) and
VEGFR-3 (Flt-4). VEGF_A interacts with both VEGFR-1 and
VEGFR-2. VEGFR-1 binds strongest to VEGF, VEGF-2 binds
more weakly. VEGFR-3 appears not to bind VEGF, but
binds other members of the VEGF family (VEGF-C and -D).
VEGFRs bind VEGFs with high affinity with the IG-like
domains. VEGF-A is important to the growth and
maintenance of vascular endothelial cells and to the
development of new blood- and lymphatic-vessels in
physiological and pathological states. VEGFR-2 is a
major mediator of the mitogenic, angiogenic and
microvascular permeability-enhancing effects of VEGF-A.
VEGFR-1 may play an inhibitory part in these processes
by binding VEGF and interfering with its interaction
with VEGFR-2. VEGFR-1 has a signaling role in mediating
monocyte chemotaxis. VEGFR-2 and -1 may mediate a
chemotactic and a survival signal in hematopoietic stem
cells or leukemia cells. VEGFR-3 has been shown to be
involved in tumor angiogenesis and growth.
Length = 86
Score = 25.9 bits (57), Expect = 1.6
Identities = 8/25 (32%), Positives = 12/25 (48%)
Query: 46 TIKSKMEIDPATQKDAGYYECVADN 70
+ S + I+ T D G Y C A +
Sbjct: 47 ELSSTLTIENVTLSDLGRYTCTASS 71
>gnl|CDD|143244 cd05767, IgC_MHC_II_alpha, Class II major histocompatibility
complex (MHC) alpha chain immunoglobulin domain.
IgC_MHC_II_alpha: Immunoglobulin (Ig) domain of major
histocompatibility complex (MHC) class II alpha chain.
MHC class II molecules play a key role in the
initiation of the antigen-specific immune reponse. In
both humans and in mice these molecules have been shown
to be expressed constitutively on the cell surface of
professional antigen-presenting cells (APCs), for
example on B-lymphocytes, monocytes, and macrophages.
The expression of these molecules has been shown to be
induced in nonprofessional APCs such as keratinocyctes,
and they are expressed on the surface of activated
human T cells and on T cells from other species. The
MHC II molecules present antigenic peptides to CD4(+)
T-lymphocytes. These peptides derive mostly from
protelytic processing via the endocytic pathway, of
antigens internalized by the APC. These peptides bind
to the MHC class II molecules in the endosome before
they are transported to the cell surface. MHC class II
molecules are heterodimers, comprised of two
similarly-sized membrane-spanning chains, alpha and
beta. Each chain had two globular domains (N- and
C-terminal), and a membrane-anchoring transmembrane
segment. The two chains form a compact four-domain
structure. The peptide-binding site is a cleft in the
structure.
Length = 94
Score = 25.8 bits (57), Expect = 1.7
Identities = 10/31 (32%), Positives = 15/31 (48%), Gaps = 2/31 (6%)
Query: 2 LGRKITFFCMAEGFPRPH--ITWTKDDIELT 30
LG T C + F P +TW K+ + +T
Sbjct: 14 LGEPNTLICFVDNFFPPVLNVTWLKNGVPVT 44
>gnl|CDD|226479 COG3970, COG3970, Fumarylacetoacetate (FAA) hydrolase family
protein [General function prediction only].
Length = 379
Score = 25.9 bits (57), Expect = 2.4
Identities = 9/33 (27%), Positives = 13/33 (39%)
Query: 46 TIKSKMEIDPATQKDAGYYECVADNPFAIDRRG 78
T+ ME+ K G + +P I R G
Sbjct: 46 TVADLMELFDLVGKPGGPIDDAILDPSTIIRDG 78
>gnl|CDD|143292 cd05884, Ig2_Necl-3, Second immunoglobulin (Ig)-like domain of
nectin-like molecule-3 (Necl-3, also known as cell
adhesion molecule 2 (CADM2)). Ig2_Necl-3: second
immunoglobulin (Ig)-like domain of nectin-like
molecule-3 (Necl-3, also known as cell adhesion
molecule 2 (CADM2)). Nectin-like molecules have similar
domain structures to those of nectins. At least five
nectin-like molecules have been identified (Necl-1 -
Necl-5). These have an extracellular region containing
three Ig-like domains, one transmembrane region, and
one cytoplasmic region. Necl-3 has been shown to
accumulate in tissues of the central and peripheral
nervous system, where it is expressed in ependymal
cells and myelinated axons. It is observed at the
interface between the axon shaft and the myelin sheath.
Ig domains are likely to participate in ligand binding
and recognition.
Length = 83
Score = 25.3 bits (55), Expect = 2.4
Identities = 15/66 (22%), Positives = 24/66 (36%), Gaps = 1/66 (1%)
Query: 6 ITFFCMAEGF-PRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYY 64
+ C G P I W K+D E+ KY + + T+ S ++ D
Sbjct: 2 MQLTCKTSGSKPAADIRWFKNDKEIKDVKYLKEEDANRKTFTVSSTLDFRVDRSDDGVAI 61
Query: 65 ECVADN 70
C D+
Sbjct: 62 ICRVDH 67
>gnl|CDD|143273 cd05865, Ig1_NCAM-1, First immunoglobulin (Ig)-like domain of
neural cell adhesion molecule NCAM-1. Ig1_NCAM-1:
first immunoglobulin (Ig)-like domain of neural cell
adhesion molecule NCAM-1. NCAM-1 plays important roles
in the development and regeneration of the central
nervous system, in synaptogenesis and neural migration.
NCAM mediates cell-cell and cell-substratum recognition
and adhesion via homophilic (NCAM-NCAM), and
heterophilic (NCAM-nonNCAM), interactions. NCAM is
expressed as three major isoforms having different
intracellular extensions. The extracellular portion of
NCAM has five N-terminal Ig-like domains and two
fibronectin type III domains. The double zipper
adhesion complex model for NCAM homophilic binding
involves the Ig1, Ig2, and Ig3 domains. By this model,
Ig1 and Ig2 mediate dimerization of NCAM molecules
situated on the same cell surface (cis interactions),
and Ig3 domains mediate interactions between NCAM
molecules expressed on the surface of opposing cells
(trans interactions), through binding to the Ig1 and
Ig2 domains. The adhesive ability of NCAM is modulated
by the addition of polysialic acid chains to the fifth
Ig-like domain.
Length = 96
Score = 25.4 bits (55), Expect = 2.4
Identities = 11/27 (40%), Positives = 14/27 (51%)
Query: 44 NNTIKSKMEIDPATQKDAGYYECVADN 70
N+ S + I A DAG Y+CV N
Sbjct: 55 NDDYSSTLTIYNANIDDAGIYKCVVSN 81
>gnl|CDD|143269 cd05861, Ig1_PDGFR-alphabeta, Frst immunoglobulin (Ig)-like
domain of platelet-derived growth factor (PDGF)
receptors (R), alpha (CD140a), and beta (CD140b).
Ig1_PDGFR-alphabeta: The first immunoglobulin (Ig)-like
domain of platelet-derived growth factor (PDGF)
receptors (R), alpha (CD140a), and beta (CD140b). PDGF
is a potent mitogen for connective tissue cells.
PDGF-stimulated processes are mediated by three
different PDGFs (PDGF-A,-B, and C). PDGFRalpha binds to
all three PDGFs, whereas the PDGFRbeta binds only to
PDGF-B. PDGFRs alpha and beta have similar
organization: an extracellular component with five
Ig-like domains, a transmembrane segment, and a
cytoplasmic portion having protein tyrosine kinase
activity. In mice, PDGFRalpha and PDGFRbeta are
essential for normal development.
Length = 84
Score = 25.2 bits (55), Expect = 2.5
Identities = 19/66 (28%), Positives = 31/66 (46%), Gaps = 1/66 (1%)
Query: 3 GRKITFFCMAEGFPRPHITWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAG 62
G IT C+ +G +WT ++ +V E + T++S + AT +D+G
Sbjct: 1 GETITVNCIVQGNEVVDFSWTYPGKDIGKGIP-EVEEVKVPATTLRSTLTFPHATVEDSG 59
Query: 63 YYECVA 68
YEC A
Sbjct: 60 TYECAA 65
>gnl|CDD|143171 cd04970, Ig6_Contactin_like, Sixth Ig domain of contactin.
Ig6_Contactin_like: Sixth 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 neur
onal 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 = 85
Score = 25.1 bits (55), Expect = 2.8
Identities = 13/48 (27%), Positives = 21/48 (43%), Gaps = 1/48 (2%)
Query: 21 TWTKDDIELTFHKYFQVHEWFLGNNTIKSKMEIDPATQKDAGYYECVA 68
TW+ + + + F K + G ++ + I A K AG Y C A
Sbjct: 20 TWSFNGVPIDFDKDGGHYRRVGGKDSN-GDLMIRNAQLKHAGKYTCTA 66
>gnl|CDD|143263 cd05855, Ig_TrkB_d5, Fifth domain (immunoglobulin-like) of Trk
receptor TrkB. TrkB_d5: the fifth domain of Trk
receptor TrkB, this is an immunoglobulin (Ig)-like
domain which binds to neurotrophin. The Trk family of
receptors are tyrosine kinase receptors, which mediate
the trophic effects of the neurotrophin Nerve growth
factor (NGF) family. The Trks are activated by
dimerization, leading to autophosphorylation of
intracellular tyrosine residues, and triggering the
signal transduction pathway. TrkB shares significant
sequence homology and domain organization with TrkA,
and TrkC. The first three domains are leucine-rich
domains. The fourth and fifth domains are Ig-like
domains playing a part in ligand binding. TrKB is
recognized by brain-derived neurotrophic factor (BDNF)
and neurotrophin (NT)-4. In some cell systems NT-3 can
activate TrkA and TrkB receptors. TrKB transcripts are
found throughout multiple structures of the central and
peripheral nervous systems.
Length = 79
Score = 24.4 bits (53), Expect = 4.3
Identities = 16/66 (24%), Positives = 29/66 (43%), Gaps = 4/66 (6%)
Query: 14 GFPRPHITWTKDDIELTFHKYF--QVHEWFLGNNTIKSKMEIDPATQKDAGYYECVADNP 71
G P+P + W + L +Y ++H + N +++D T + G Y VA N
Sbjct: 9 GNPKPTLQWFHEGAILNESEYICTKIHV--INNTEYHGCLQLDNPTHLNNGIYTLVAKNE 66
Query: 72 FAIDRR 77
+ D +
Sbjct: 67 YGEDEK 72
>gnl|CDD|234437 TIGR03998, thiol_BshC, bacillithiol biosynthesis cysteine-adding
enzyme BshC. Members of this protein family are BshC,
an enzyme required for bacillithiol biosynthesis and
described as a cysteine-adding enzyme. Bacillithiol is a
low-molecular-weight thiol, an analog of glutathione and
mycothiol, and is found largely in the Firmicutes
[Biosynthesis of cofactors, prosthetic groups, and
carriers, Glutathione and analogs].
Length = 528
Score = 25.3 bits (56), Expect = 4.9
Identities = 9/30 (30%), Positives = 12/30 (40%), Gaps = 1/30 (3%)
Query: 15 FPRPHITWTKDDIELTFHKY-FQVHEWFLG 43
PR T + +E KY V + F G
Sbjct: 367 VPRLSATLIEPRVEKLLDKYQLSVADIFTG 396
>gnl|CDD|212658 cd00366, FGGY, FGGY family of carbohydrate kinases. This family is
predominantly composed of glycerol kinase (GK) and
similar carbohydrate kinases including rhamnulokinase
(RhuK), xylulokinase (XK), gluconokinase (GntK),
ribulokinase (RBK), and fuculokinase (FK). These enzymes
catalyze the transfer of a phosphate group, usually from
ATP, to their carbohydrate substrates. The monomer of
FGGY proteins contains two large domains, which are
separated by a deep cleft that forms the active site.
One domain is primarily involved in sugar substrate
binding, and the other is mainly responsible for ATP
binding. This model includes both the N-terminal domain,
which adopts a ribonuclease H-like fold, and the
structurally related C-terminal domain.
Substrate-induced conformational changes and a divalent
cation may be required for the catalytic activity.
Length = 435
Score = 24.6 bits (54), Expect = 6.7
Identities = 7/42 (16%), Positives = 13/42 (30%), Gaps = 3/42 (7%)
Query: 4 RKITFFCMAEGFPRPHITWTKDDIELTFHKY---FQVHEWFL 42
+ T F P + W K+ + K V ++
Sbjct: 118 YERTGLRPHPMFSGPKLLWLKEHRPEIYSKADKILTVADYLA 159
>gnl|CDD|237595 PRK14050, PRK14050, ferrichrome receptor precursor protein;
Provisional.
Length = 728
Score = 24.4 bits (53), Expect = 9.1
Identities = 24/72 (33%), Positives = 27/72 (37%), Gaps = 23/72 (31%)
Query: 14 GFPRPHITWTKDD-IELTFHKYF----QVHEWFLGNNTIKSKMEIDPATQKDAGYYECVA 68
GF P IT+ DD LT + Y QVH GN + Y V
Sbjct: 245 GFIMPQITYAPDDATSLTVYGYLSGLDQVHV---GNGFLP--------------YVGTVV 287
Query: 69 DNPFA-IDRRGF 79
D PF IDR F
Sbjct: 288 DAPFGKIDRDAF 299
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
0.326 0.142 0.473
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: 4,320,939
Number of extensions: 326363
Number of successful extensions: 426
Number of sequences better than 10.0: 1
Number of HSP's gapped: 384
Number of HSP's successfully gapped: 89
Length of query: 83
Length of database: 10,937,602
Length adjustment: 52
Effective length of query: 31
Effective length of database: 8,631,194
Effective search space: 267567014
Effective search space used: 267567014
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.1 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.6 bits)
S2: 53 (24.4 bits)