Protein IBSP

URN urn:agi-llid:3381
Name IBSP
Description integrin-binding sialoprotein
Connectivity 144
Notes The protein encoded by this gene is a major structural protein of the bone matrix. It constitutes approximately 12% of the noncollagenous proteins in human bone and is synthesized by skeletal-associated cell types, including hypertrophic chondrocytes, osteoblasts, osteocytes, and osteoclasts. The only extraskeletal site of its synthesis is the trophoblast. This protein binds to calcium and hydroxyapatite via its acidic amino acid clusters, and mediates cell attachment through an RGD sequence that recognizes the vitronectin receptor. [provided by RefSeq]

Swiss-Prot Accession P21815
Q80VR6
Q3TRM5
Q61711
A0JPM6
P13839
Q3HLN4

Unigene ID Hs.518726
Mm.4987
Rn.9721

KEGG ID hsa:3381
mmu:15891
rno:24477

Swiss-Prot ID Q80VR6_MOUSE
SIAL_HUMAN
A0JPM6_RAT

Cell Localization Extracellular

GO ID 0005515
0007155
0001503
0005576
0030198
0007229
0005615
0031988
0005578

Pathway VDR Targets

IPI ID IPI00294662
IPI00322881
IPI00749962
IPI00205448
IPI00876575

Ariadne Ontology Extracellular matrix polymerization

Mouse chromosome position 5 56.0 cM

GO Molecular Function protein binding

Homologene ID 3644

Hugo ID 5341

GO Cellular Component extracellular region
extracellular space
proteinaceous extracellular matrix
membrane-bounded vesicle

MGI ID 96389

Human chromosome position 4q21-q25

GO Biological Process cell adhesion
integrin-mediated signaling pathway
extracellular matrix organization
ossification

Rat chromosome position 14p22

GenBank ID NC_000004
NM_004967
NP_004958
NT_016354
NW_001838915
NW_922162
AC_000136
AC_000047
AC093768
CH471057
EAX05998
EAX05999
EAX06000
CS025624
CAI61689
L09554
L09558
AAA60549
L24756
L24759
AAC37560
AA452255
AI751848
BQ573754
DV462680
J05213
AAC95490
P21815
BC111920
AAI11921
NC_000071
NM_008318
NP_032344
NT_109320
AC122775
CH466529
EDL20226
AK132371
BAE21132
AK162640
BAE37003
BB618282
BC045143
AAH45143
BY669291
L20232
AAA21726
L23801
AAA37326
Q3TRM5
Q61711
Q80VR6
NC_005113
NM_012587
NP_036719
NW_001084689
NW_047421
AC_000082
CH474022
EDL99496
EDL99497
AB001383
BAA19248
BC127506
AAI27507
CB324054
DQ213013
ABA42178
DY313346
DY314698
J04215
AAA41763
P13839
Q3HLN4

Group Extracellular matrix polymerization
extracellular region
extracellular space
proteinaceous extracellular matrix
membrane-bounded vesicle
protein binding
cell adhesion
integrin-mediated signaling pathway
extracellular matrix organization
ossification

RGD ID 2855

LocusLink ID 3381
15891
24477

Alias BSP
BNSP
SP-II
BSP-II
integrin-binding sialoprotein
bone sialoprotein II
Bsp2
integrin binding sialoprotein
OTTMUSP00000023751
MGC156673
bone sialoprotein
Integrin-binding sialoprotein (bone sialoprotein II)
bone sialoprotein II, bone sialoprotein
Ibsp
integrin-binding sialoprotein (bone sialoprotein, bone sialoprotein II)
Cell-binding sialoprotein
Bone sialoprotein II precursor
bone sialic protein

Organism Homo sapiens
Mus musculus
Rattus norvegicus

OMIM ID 147563