| Tissue Specificity | Isoform 1 is widely expressed. Isoform 2 is expressed in brain and heart. In brain, both isoforms are exclusively expressed on vascular smooth muscle cells, whereas in heart isoform 1 is strongly expressed on vascular smooth muscle cells, isoform 2 is detected only on endothelial vein cells. |
| Post Translational Modifications | Isoform 1, but not isoform 2, is phosphorylated on serine residues. Phosphorylation increases after phorbol 12-myristate 13-acetate stimulation. |
| Function | Integrin alpha-3/beta-1 is a receptor for fibronectin, laminin, collagen, epiligrin, thrombospondin and CSPG4. Integrin alpha-3/beta-1 provides a docking site for FAP (seprase) at invadopodia plasma membranes in a collagen-dependent manner and hence may participate in the adhesion, formation of invadopodia and matrix degradation processes, promoting cell invasion. Alpha-3/beta-1 may mediate with LGALS3 the stimulation by CSPG4 of endothelial cells migration. (Microbial infection) Integrin ITGA3:ITGB1 may act as a receptor for R.delemar CotH7 in alveolar epithelial cells, which may be an early step in pulmonary mucormycosis disease progression. |
| Protein Name | Integrin Alpha-3Cd49 Antigen-Like Family Member CFrp-2Galactoprotein B3Gapb3Vla-3 Subunit AlphaCd Antigen Cd49c Cleaved Into - Integrin Alpha-3 Heavy Chain - Integrin Alpha-3 Light Chain |
| Database Links | Reactome: R-HSA-210991Reactome: R-HSA-216083Reactome: R-HSA-3000157Reactome: R-HSA-8874081 |
| Cellular Localisation | Cell MembraneSingle-Pass Type I Membrane ProteinLipid-AnchorCell ProjectionInvadopodium MembraneFilopodium MembraneEnriched Preferentially At InvadopodiaCell Membrane Protrusions That Correspond To Sites Of Cell InvasionIn A Collagen-Dependent Manner |
| Alternative Antibody Names | Anti-Integrin Alpha-3 antibodyAnti-Cd49 Antigen-Like Family Member C antibodyAnti-Frp-2 antibodyAnti-Galactoprotein B3 antibodyAnti-Gapb3 antibodyAnti-Vla-3 Subunit Alpha antibodyAnti-Cd Antigen Cd49c Cleaved Into - Integrin Alpha-3 Heavy Chain - Integrin Alpha-3 Light Chain antibodyAnti-ITGA3 antibodyAnti-MSK18 antibody |
Information sourced from Uniprot.org
