Purity ~90% (SDS-PAGE). CD83 is a single-pass type I membrane protein and member of the immunoglobulin superfamily of receptors. The protein may be involved in the regulation of antigen presentation. A soluble form of this protein can bind to dendritic cells and inhibit their maturation. Three transcript variants encoding different isoforms have been found for this gene. Source: Recombinant protein corresponding to aa20-144 from human CD83, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~16kD (148aa) AA