Itgb3
entrez
29302
canonical
uniprot
Q8R2H2
canonical
ensembl
ENSRNOG00000048449
resolver
ensp
ENSRNOP00000067271
resolver
enst
ENSRNOT00000073350
resolver
genesymbol
Itgb3
resolver
uniprot
M0RCF3
resolver
uniprot_entry
ITB3_RAT
resolver
uniprot_sec
M0RCF3
resolver
amino_acid_sequence
MRTRRPGQLWATLLALGALAGVVVGESNICTTRGVNSCQQCLAVSPVCAWCSDESLPQNSPRCNLKKNLLKDKCSPESIEFPVSEAQILEALPLSSKGSGDSAQITQVSPQRIALRLRPDDSKIFSLQVRQVEDYPVDIYYLMDLSFSMKDDLSSIQTLGTKLASQMRKLTSNLRIGFGAFVDKPVSPYMFISPPQAIKNPCYTMKSTCLPMFGYKHVLTLTDQVTRFNDEVKKQSVSRNRDAPEGGFDAIMQATVCDEKIGWRNDASHLLVFTTDAKTHIALDGRLAGIVLPNDGRCHIGPDNHYSASTTMDYPSLGLMTEKLSQKNINLIFAVTENVVSLYQNYSELIPGTTVGVLSDDSSNVLQLIVDAYGKIRSKVELEVRDLPEELSLSFNATCLNNEVIPGLKSCVGLKIGDTVSFSIEAKVRGCPQQKEQSFTIKPVGFKDSLTVQVTFDCDCDCQAFAQPLSPRCNNGNGTFECGVCRCDQGWLGSMCECSEEDYRPSQQEECSPKEGQPICSQRGECLCGQCVCHSSDFGKITGKYCECDDFSCVRYKGEMCSGHGQCNCGDCVCDSDWTGYYCNCTTRTDTCMSTNGLLCSGRGNCECGSCVCVQPGSYGDTCEKCPTCPDACSFKKDCVECKKFNRGKLHEENNCNRFCRDDIELVKELTDTGKNAVNCTYKNEDDCVVRFQYYEDSSGRAVLYVVEEPECPKGPDILVVLLSVMGAILLIGLATLLIWKLLITIHDRKEFAKFEEERARAKWDTANNPLYKEATSTFTNITYRGT
uniprot
proteins
function
FUNCTION: Integrin alpha-V/beta-3 (ITGAV:ITGB3) is a receptor for cytotactin, fibronectin, laminin, matrix metalloproteinase-2, osteopontin, osteomodulin, prothrombin, thrombospondin, vitronectin and von Willebrand factor. Integrin alpha-IIB/beta-3 (ITGA2B:ITGB3) is a receptor for fibronectin, fibrinogen, plasminogen, prothrombin, thrombospondin and vitronectin. Integrins alpha-IIB/beta-3 and alpha-V/beta-3 recognize the sequence R-G-D in a wide array of ligands. Integrin alpha-IIB/beta-3 recognizes the sequence H-H-L-G-G-G-A-K-Q-A-G-D-V in fibrinogen gamma chain. Following activation integrin alpha-IIB/beta-3 brings about platelet/platelet interaction through binding of soluble fibrinogen. This step leads to rapid platelet aggregation which physically plugs ruptured endothelial surfaces. Fibrinogen binding enhances SELP expression in activated platelets (By similarity). ITGAV:ITGB3 binds to fractalkine (CX3CL1) and acts as its coreceptor in CX3CR1-dependent fractalkine signaling. ITGAV:ITGB3 binds to NRG1 (via EGF domain) and this binding is essential for NRG1-ERBB signaling. ITGAV:ITGB3 binds to FGF1 and this binding is essential for FGF1 signaling. ITGAV:ITGB3 binds to FGF2 and this binding is essential for FGF2 signaling (By similarity). ITGAV:ITGB3 binds to IGF1 and this binding is essential for IGF1 signaling (By similarity). ITGAV:ITGB3 binds to IGF2 and this binding is essential for IGF2 signaling (By similarity). ITGAV:ITGB3 binds to IL1B and this binding is essential for IL1B signaling (By similarity). ITGAV:ITGB3 binds to PLA2G2A via a site (site 2) which is distinct from the classical ligand-binding site (site 1) and this induces integrin conformational changes and enhanced ligand binding to site 1 (By similarity). ITGAV:ITGB3 acts as a receptor for fibrillin-1 (FBN1) and mediates R-G-D-dependent cell adhesion to FBN1 (By similarity). In brain, plays a role in synaptic transmission and plasticity. Involved in the regulation of the serotonin neurotransmission, is required to localize to specific compartments within the synapse the serotonin receptor SLC6A4 and for an appropriate reuptake of serotonin (By similarity). Controls excitatory synaptic strength by regulating GRIA2-containing AMPAR endocytosis, which affects AMPAR abundance and composition (PubMed:18549786). ITGAV:ITGB3 acts as a receptor for CD40LG (By similarity). ITGAV:ITGB3 acts as a receptor for IBSP and promotes cell adhesion and migration to IBSP (PubMed:10640428). Integrin ITGA2B:ITGB3 is also the receptor of the erythrocyte-specific ICAM4 ligand involved in heterotypic cell-cell adhesion between erythrocytes and activated platelets (By similarity). ITGAV:ITGB3 acts as a receptor for SNED1 and mediates R-G-D-dependent cell adhesion to SNED1 (By similarity). {ECO:0000250|UniProtKB:O54890, ECO:0000250|UniProtKB:P05106, ECO:0000269|PubMed:10640428, ECO:0000269|PubMed:18549786}.
uniprot
proteins
mass_dalton
86930
uniprot
proteins
post_translational_modification
PTM: Phosphorylated on tyrosine residues in response to thrombin-induced platelet aggregation. Probably involved in outside-in signaling. {ECO:0000250|UniProtKB:P05106}.
uniprot
proteins
protein_family
Integrin beta chain family
uniprot
proteins
pubmed
10640428
uniprot
proteins
pubmed
15057822
uniprot
proteins
pubmed
18317590
uniprot
proteins
pubmed
18549786
uniprot
proteins
sequence_length
787
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:P05106}; Single-pass type I membrane protein {ECO:0000250|UniProtKB:P05106}. Cell projection, lamellipodium membrane {ECO:0000250|UniProtKB:P05106}. Cell junction, focal adhesion {ECO:0000250|UniProtKB:O54890}. Postsynaptic cell membrane {ECO:0000269|PubMed:18549786}; Single-pass type I membrane protein {ECO:0000305}. Synapse {ECO:0000250|UniProtKB:O54890}.
uniprot
proteins
transmembrane_region
TRANSMEM 718..738; /note="Helical"; /evidence="ECO:0000255
uniprot
proteins