Cluster Of Differentiation 83 (CD83)

Zhou et al. (1992) isolated a full-length cDNA clone for CD83, which they termed HB15. The predicted 205-amino acid protein contains 6 cysteine residues in the extracellular region and 1 in the membrane-spanning domain. A pair of cysteine residues are in positions to permit the disulfide bonding that delineates an Ig-like domain.

Using flow cytometry on B and T cell lines, CD83 was expressed variably on cells that were proliferating maximally but not on circulating peripheral blood lymphocytes or monocytes. By immunohistologic analysis, Zhou et al. (1992) observed CD83 expression in lymph nodes, spleen, and tonsils and high expression on scattered interfollicular cells. Expression was also noted on a subpopulation of dendritic cells in the epidermis.