CD83 Monoclonal Antibody (HB15e), Alexa Fluor™ 700, eBioscience™, Invitrogen™

Description

• Description: The HB15e monoclonal antibody reacts with human CD83, a 45 kDa transmembrane glycoprotein
• CD83, a member of the Ig superfamily, is expressed on cultured dendritic cells, interdigitating, follicular, and circulating dendritic cells as well as some proliferating lymphocytes, and human cell lines express this antigen
• While the function of CD83 is unclear, it can serve as a useful marker for mature human blood dendritic cells
• Applications Reported: This HB15e antibody has been reported for use in flow cytometric analysis
• Applications Tested: This HB15e antibody has been pre-diluted and tested by flow cytometric analysis of stimulated normal human peripheral blood cells
• This may be used at 5 μL (0.25 μg) per test
• A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL
• Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test
• Alexa Fluor 700 emits at 723 nm and can be excited with the red laser (633-647 nm)
• Most instruments will require a 685 LP mirror and 710/20 band pass filter
• Please make sure that your instrument is capable of detecting this fluorochrome
• Excitation: 633-647 nm; Emission: 723 nm; Laser: Red Laser CD83 cell surface antigen is a 40-45kD glycoprotein expressed by peripheral blood dendritic cells
• Peripheral lymphocytes can be induced to express very low levels of CD83 after culture in agents such as Con A or PHA
• In immunohistology, CD83 is shown to be expressed strongly by interfollicular interdigitating reticulum cells and more weakly by cells within germinal centres
• CD83 is also expressed by Langerhan's cells in the skin
• The CD83 antigen is a 186-amino-acid single-chain glycoprotein and this molecule is a member of the immunoglobulin superfamily that is composed of an extracellular V-type Ig-like single domain, a transmembrane region, and a short, 40-amino-acid cytoplasmic tail
• CD83 antigen undergoes extensive post-translational glycosylation, since the determined Mr is twice the predicted size of the core protein
• However, CD83+ cells have a unique cell surface immuno-phenotype that does not correlate with that of T cells, B cells, NK cells, or cells of the myelomonocytic lineage
• CD83+ cells coexpress the highest levels of MHC class II molecules, when compared with other leucocyte lineages
• They also co-express T cell markers (CD2, CD5), B cell markers (CD40, CD78), myeloid cell markers (CD13, CD33, CD36), cytokine receptors as well as other cell surface molecules
• Diseases associated with CD83 dysfunction include plague and Rift Valley Fever.