GpIIb, or Integrin subunit alpha 2b, is a human gene encoded by ITGA2B. It may also be known as: Integrin alpha-IIb; GPalpha IIb; GPIIb; Platelet membrane glycoprotein IIb; CD antigen CD41; protein phosphatase 1, regulatory subunit 93; platelet glycoprotein IIb of IIb/IIIa complex; BDPLT2; CD41; CD41B; GP2B; GTA; HPA3; PPP1R93; integrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigen CD41). The encoded protein has an amino acid length of 1039 and a mass of 113.4 kDa. Other isoforms may exist. Homologs of this gene exist in other organisms, including: Mouse, Frog.