DHLAG antibody, HLADG antibody, II antibody, Ia-GAMMA antibody, CLIP antibody, Ii antibody, INVG34 antibody, Iclp-1 antibody, iclp1 antibody, wu:fb11f09 antibody, wu:fb12a01 antibody, wu:fb13d06 antibody, wu:fk94e07 antibody, Iclp-2 antibody, cd74 antibody, iclp2 antibody, zgc:123161 antibody, CD74 molecule antibody, CD74 antigen (invariant polypeptide of major histocompatibility complex, class II antigen-associated) antibody, CD74 molecule, major histocompatibility complex, class II invariant chain a antibody, CD74 molecule, major histocompatibility complex, class II invariant chain b antibody, CD74 antibody, Cd74 antibody, cd74a antibody, cd74b antibody
背景
CD74, also known as the MHC class II associated invariant chain (Ii), is a type II transmembrane protein which binds to the peptide binding groove of newly synthesized MHC class II alpha/beta heterodimers and prevents their premature association with endogenous polypeptides. CD74 is produced in molar excess over MHC class II and some of this is expressed by an unknown pathway on the cell surface independent of or in association with MHC class II molecules. The half life of CD74 on the cell surface is only 3 to 4 min after which it is internalized.