P-Selectin (CD62P) Proteins

Protein Information

P-selectin (Selectin P, GMP-140, LECAM3, CD62 antigen-like family member) is a 140 kDa type 1 transmembrane glycoprotein, and is one of the most commonly studied proteins that regulate cell rolling. P-selectin is stored in the Weibel-Palade bodies of endothelial cells, as well as in a-granules of platelets. From there, it can be rapidly brought to the cell surface after exposure to thrombin, histamine, complement 5a, Ca21 ionophores, or adenosine diphosphate. P-selectin protein redistributes to the plasma membrane during platelet activation and degranulation and mediates the interaction of activated endothelial cells or platelets with leukocytes. P-selectin plays an important role in adhesive processes between leucocytes and endothelial cells, and is a calcium dependent receptor that binds to sialylated forms of Lewis blood group carbohydrate antigens found on neutrophils and monocytes. P-selectin is constitutively expressed in inflammation and contributes to atherogenesis, thrombosis and tissue destruction. Clinically, P-selectin is used to distinguish heparin induced thrombocytopenia with and without thrombosis.

Synonyms

CD62; CD62 antigen-like family member P; CD62P; CD62P antigen; CD62P; CD62 homolog; FLJ45155; GMP140; GMP-140; GMRP; Granule membrane protein 140; granule membrane protein 140kDa; granulocyte membrane protein; Grmp; LECAM3; leukocyte-endothelial cell adhesion molecule 3; PADGEM; Platelet activation dependent granule-external membrane protein; platelet alpha-granule membrane protein; PSEL; PSELECT; P-selectin; P-selectin precursor; RP1-86F14.2; selectin P; selectin P (granule membrane protein 140kDa, antigen CD62); selectin, platelet; Selp