CD43 Monoclonal Antibody (eBioR2/60), Biotin, eBioscience™, Invitrogen™

Description

• Description: The eBioR2/60 monoclonal antibody reacts with mouse CD43, also known as leukosialin and sialophorin
• CD43 has glycoforms of approximately 115 and 130 kDa, and is expressed by an early B cell subset in BM, thymocytes and mature T cells, NK cells, myeloid lineage cells and platelets
• CD43 is reported to bind to CD54 and play a role in adhesion and B cell survival
• While the S7 and 1B11 monoclonal antibody clones detect only certain isoforms of CD43, data suggests that R2/60 detects the expression of both isoforms
• It has been demonstrated that R2/60 stains the majority of CD4+ and CD8+ splenocytes, as well as a significant population of CD19+ splenocytes
• However, the clones S7 and 1B11 stain only CD4+ and CD8+, or CD19+ splenocytes, respectively
• This suggests that S7 and 1B11 recognize distinct epitopes which are differentially expressed by splenic B and T cells, whereas R2/60 recognizes an epitope shared by both isoforms of CD43
• Applications Reported: This eBioR2/60 antibody has been reported for use in flow cytometric analysis
• Applications Tested: This eBioR2/60 antibody has been tested by flow cytometric analysis of mouse splenocytes
• This can be used at less than or equal to 0.5 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
• CD43 (leukosialin, sialophorin) is a transmembrane mucin-like protein with high negative charge, expressed on the surface of most hematopoietic cells
• CD43 contributes to a repulsive barrier that interferes with cellular adhesion, however, in certain cases also promotes leukocyte aggregation
• By interaction with actin-binding proteins ezrin and moesin CD43 plays a regulatory role in remodeling T-cell morphology and regulates cell-cell interactions during lymphocyte traffic
• CD43 signaling both enhances LFA-1 adhesiveness and counteracts LFA-1 induction via other receptors
• Expression of CD43 causes induction of functionally active tumor suppressor p53 protein, but in case of p53 and ARF deficiency CD43 promotes tumor proliferation and viability
• CD43 appears to be an important modulator of leukocyte functions
• Diseases associated with CD43 dysfunction include Wiscott-Aldrich Syndrome and Adenoid Basal Cell Carcinoma.