CD31 (PECAM-1) Proteins

Protein Information

CD31 (platelet endothelial cell adhesion molecule-1, PECAM-1) is an inhibitory coreceptor involved in regulation of T cell and B cell signaling by a dual immunoreceptor tyrosine-based inhibitory motif (ITIM) that upon associated kinases-mediated phosphorylation provide docking sites for protein-tyrosine phosphatases. CD31 is expressed ubiquitously within the vascular compartment and is located mainly at junctions between adjacent cells. N-terminal Ig-like domain of CD31 is responsible for its homophilic binding, which plays an important role in cell-cell interactions. CD31 is a multifunctional molecule with diverse roles in modulation of integrin-mediated cell adhesion, transendothelial migration, angiogenesis, apoptosis, negative regulation of immunoreceptor signaling, autoimmunity, macrophage phagocytosis, IgE-mediated anaphylaxis and thrombosis. It is one of key regulatory molecules in vascular system.

Synonyms

C85791; CD31; CD31 antigen; CD31, PECAM-1; CD31/EndoCAM; endoCAM; Fc receptor-like 4-like; GPIIA'; I79_008304; LOC100357605; PECA1; Pecam; PECAM1; Pecam-1; platelet and endothelial cell adhesion molecule 1; Platelet endothelial cell adhesion molecule; platelet endothelial cell adhesion molecule-1; platelet/endothelial cell adhesion molecule (CD31 antigen); platelet/endothelial cell adhesion molecule 1; type I transmembrane endothelial adhesion molecule