Anti-CD83 Antibody Picoband®

CD83 (Cluster of Differentiation 83) is a human protein encoded by the CD83 gene. The protein encoded by this gene is a single-pass type I membrane protein and member of the immunoglobulin superfamily of receptors. The encoded 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.

Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and ly to substrates containing either a simple or bipartite NLS motif. Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats and the complex is subsequently translocated through the pore by an energy requiring, Ran- dependent mechanism. At the nucleoplasmic side of the NPC, Ran binds to importin-beta and the three components separate and importin-alpha and -beta are re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran from importin. The ionality of nuclear import is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus.

1. Berchtold, S., Muhl-Zurbes, P., Heufler, C., Winklehner, P., Schuler, G., Steinkasserer, A. Cloning, recombinant expression and biochemical characterization of the murine CD83 molecule which is specifically upregulated during dendritic cell maturation. FEBS Lett. 461: 211-216, 1999. 2. Fujimoto, Y., Tu, L., Miller, A. S., Bock, C., Fujimoto, M., Doyle, C., Steeber, D. A., Tedder, T. F. CD83 expression influences CD4+ T cell development in the thymus. Cell 108: 755-767, 2002. 3. Kozlow, E. J., Wilson, G. L., Fox, C. H., Kehrl, J. H. Subtractive cDNA cloning of a novel member of the Ig gene superfamily expressed at high levels in activated B lymphocytes. Blood 81: 454-461, 1993.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.