The L272 monoclonal antibody specifically recognizes CD26 which is also known as Dipeptidyl peptidase IV (DPP IV), a serine protease. CD26 is a ~120 kDa type II transmembrane glycoprotein that is encoded by DPP4 and belongs to the DPP4 activity and/or structure homologue (DASH) protein family. It is associated with the binding of the TAT transactivating protein of the HIV. CD26 and CD45 act in a costimulatory fashion on T lymphocytes. Present on peripheral blood T lymphocytes, the CD26 antigen is upregulated on phytohemagglutinin (PHA) and concanavalin A (Con A)-stimulated peripheral blood mononuclear cells (PBMCs). The CD26 antigen is found on approximately 50% of CD4 and approximately 30% of CD8 cells. It is also found on some mature thymocytes, B cells, natural killer (NK) cells, monocytes, macrophages, epithelial cells, EBV transformed B-cell lines, and hairy cell leukemia. Absolute numbers of CD4+CD26+ and CD8+CD26+ cells are reported to be lower in HIV-positive individuals. The CD26-CD4+ cell appears to be a reservoir for HIV. CD26 bright CD4 lymphocytes are CD25+ and CD45RO+ memory T lymphocytes. The CD26 antigen can serve as a receptor for the coronavirus, MERS-CoV.
BD™ CompBeads can be used as surrogates to assess fluorescence spillover (Compensation). When fluorochrome conjugated antibodies are bound to BD CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD CompBead to ensure that BD CompBeads are appropriate for your specific cellular application.
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions that minimize unconjugated dye and antibody.
1. Researchers should determine the optimal concentration of this reagent for their individual applications.
2. The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
3. An isotype control should be used at the same concentration as the antibody of interest.
4. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
5. Alexa Fluor® is a registered trademark of Life Technologies Corporation.
6. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
7. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
8. This product is provided under an Agreement between BIOTIUM and BD Biosciences. This product, and only in the amount purchased by buyer, may be used solely for buyer’s own internal research, in a manner consistent with the accompanying product literature. No other right to use, sell or otherwise transfer (a) this product, or (b) its components is hereby granted expressly, by implication or by estoppel. This product is for research use only. Diagnostic uses require a separate license from Biotium, Inc. For information on purchasing a license to this product including for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email:
[email protected].
