The antibody reacts with free soluble (17 kDa) and membrane (26 kDa) human TNF-alpha. The antibody inhibits the biological activity of both forms. It does not react with receptor bound TNF-alpha. It can be a useful tool to discriminate between the membrane form of TNF expressed on producer cells and the proteolytically cleaved, soluble TNF-alpha bound to its cognate cell membrane receptors (TNF-RI and TNF-RII). For this purpose we recommend to use this antibody in combination with the anti-TNF-alpha antibody HM2026, which recognizes soluble, membrane and receptor bound TNF-alpha.
Applications: Flow Cytometry , Functional Studies , Immunoassays , Immunoprecipitation , Western Blot