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Description
Fas (APO-1, CD95) is a 45 kDa cell surface protein that mediates apoptosis when cross-linked 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 40kDa TNF family membrane protein that induces apoptosis by binding to Fas, its cell-surface receptor. FasL is expressed on activated T and NK cells. Both Fas and FasL are thought to play an important role inthe apoptotic processes that take place during T cell development.
NOK-2 recognizes human FasL. It recognizes both the membrane bound (FasL) and soluble (sFasL) forms. L5178Y mouse T lymphoma cells expressing recombinant human FasL were used as immunogen. FasL and sFasL migrate at reduced molecular weights of 40 and 26 kDa, 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.
Format
- FormatNA/LE
Other Formats→
- Purified
Suggested Companion Products
Purified Mouse IgG2a κ Isotype Control RUO 0.5mgCat No: 553454
Purified Mouse Anti-Human CD178 G247-4RUO 0.1mgCat No: 556387
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Preparation and Storage
Store undiluted at 4°C.This preparation contains no preservatives, thus it should be handled under aseptic conditions.The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
Product Notices
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- An isotype control should be used at the same concentration as the antibody of interest.
- Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.
IP: Applications include immunoprecipitation (1-2 µg/one million cells).
Functional Assay: NOK-2 has also been shown to neutralize the cytotoxic activity of FasL. Neutralization of FasL activity inhibits Fas-mediatingkilling. The NA/LE format of NOK-2 (Cat. No. 556375) should be used for all functional assays. NOK-2 and a related human FasL clone, NOK-1 [Cat. No. 556371 (NA/LE)] may give different profiles in neutralization assays. It is thought that NOK-1 and NOK-2 likely recognize different FasL epitopes.
Flow Cytometry: Another clone,NOK-1, (556372, 556373)arerecommended for flow cytometry. NOK-2 appears weaker for flow cytometry than NOK-1.
Western Blot: Neither NOK-1 nor NOK-2 are suggested for western blot analysis. Another human FasL clone, G247-4 (Cat. No. 556387) is suggested for the western blot analysis.
