Clone Number: BA5b
Immunogen: A human T cell clone
Concentration: 1 mg/ml
Format: Purified by protein-A affinity chromatography.
Storage buffer: Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
Additional info: CD26, also known as dipeptidyl peptidase IV (DPP-IV), is a homodimeric cell surface serine peptidase that degradates IFN-gamma-induced cytokines, acts as a T cell costimulatory molecule, and participates in multiple immunopathological roles in leukocyte homing and inflammation. Alterations in its peptidase activity are characteristic of malignant transformation. The enzymatic activity increases dramatically with tumour grade and severity. CD26 is expressed in various blood cell types, but also e.g. in cells that are histogenetically related to activated fibroblasts. Alterations in CD26 density have been reported on circulating monocytes and CD4+ T cells during rheumatoid arthritis and systemic lupus erythematosus.SpecificityThe mouse monoclonal antibody DR-4-02 recognizes an extracellular epitope of TRAIL-R1 (DR4), a human death receptor 4 expressed in most human tissues (spleen, peripheral blood leucocytes, thymus) and in a variety of tumour-derived cell lines.Application detailsFlow cytometry: Recommended dilution: 1-2 μg/ml; positive control: human peripheral blood leukocytes.