CD163 Antibody

Cluster of Differentiation 163, also known as Hemoglobin scavenger receptor, is a human protein encoded by the CD163 gene. The receptor belongs to the scavenger receptor cysteine rich family type B and consists of an 1048 amino acid residues extracellular domain, a single transmembrane segment and a cytoplasmic tail with several splice variants. CD163 is a scavenger receptorfor the hemoglobin-haptoglobin complex. Using FISH, somatic cell hybrid analysis, and radiation hybrid analysis, Stover et al.(2000) mapped the gene to chromosome 12p13.3. CD163 expression in monocytes promoted bacteria-induced proinflammatory cytokine production that could be blocked by CD163 antibody. Cells expressing human CD163 and recombinant protein containing the extracellular domain of CD163 supported adhesion of erythroblastic cells.