CD41 (platelet glycoprotein IIb, ITGA2B) is composed of two subunits -120 kDa a, alpha and 23 kDa b, beta- that interact with CD61 in the presence of calcium to form a functional adhesive protein receptor. CD41 is also involved in blood coagulation by mediating platelet aggregation. Upon blood vessel damage, CD41 binds to a variety of proteins including von Willebrand factor, fibrinogen, fibronectin and vitronectin. CD41 is mainly expressed on megakaryocyte-platelet lineage, but generally belongs to the antigens that are expressed during the early stages of hematopoietic differentiation. Diseases associated with CD41 dysfunction include Glansmann Thrombasthenia, and Platelet type-16 bleeding disorder.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: alpha IIb; alphaIIb protein; CD41; form 1; form 2; GP IIb; GPalpha IIb; GPIIb; integrin alpha 2b (Cd41b); Integrin alpha-IIb; Integrin alpha-IIb heavy chain; Integrin alpha-IIb light chain; Integrin alpha-IIb light chain, form 1; Integrin alpha-IIb light chain, form 2; integrin, alpha 2B; integrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigen CD41); platelet fibrinogen receptor, alpha subunit; platelet glycoprotein IIb of IIb/II Ia complex; platelet glycoprotein IIb of IIb/IIIa complex; Platelet membrane glycoprotein IIb; platelet-specific antigen BAK; protein phosphatase 1, regulatory subunit 93
Gene Aliases: AI172977; alphaIIb; BDPLT16; BDPLT2; CD41; CD41B; GP2B; GPIIb; GT; GTA; HPA3; ITGA2B; ITGAB; PPP1R93
Molecular Function: integrin