BD, 556387, Purified Mouse Anti-Human CD178 G247-4

Fas (APO-1, CD95) is a 45 kD cell surface protein that mediates apoptosis when crosslinked with agonistic anti-Fas antibodies or Fas ligand (FasL). Fas belongs to the TNF (tumor necrosis factor)/NGF (nerve growth factor) receptor family, and is expressed in various tissue and cells including the thymus, liver, ovary and lung. FasL is a member of the TNF cytokine family that induces apoptosis by binding to Fas, its cell-surface receptor. FasL may exist in both membrane and soluble forms and expressed on activated T cells, NK cells, and other "immunologically privileged" sites. Both Fas and FasL are thought to play an important role in the apoptotic processes that take place during T cell development. G247-4 recognizes human FasL. It recognizes both the membrane bound (FasL) and soluble (sFasL) forms. A recombinant protein containing the external domain of human FasL was used as immunogen. FasL and sFasL migrate at reduced molecular weights of 40 and 26 kD, respectively. However, the molecular weights observed in a particular sample may vary according to FasL and sFasL glycosylation and breakdown patterns as described in Tanaka et al. For example, FasL may migrate as a doublet of 40 and 42 kD.
Applications include immunoprecipitation (1-2 µg/ml), western blot analysis (1-2 µg/ml) and immunohistochemical staining of acetone-fixed frozen tissue sections (0.5-4 µg/ml). G247-4 is not recommended for flow cytometry. For flow cytometry application, clone NOK-1 (purified, Cat. No. 556372; or biotin-conjugated, Cat. No. 556374) is recommended.
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. Store undiluted at 4°C.
1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
2. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
3. 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.