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-mediating killing. 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) are recommended 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.
Restrictions
For Research Use only
Format
Liquid
Concentration
1.0 mg/mL
Buffer
No azide/low endotoxin: Aqueous buffered solution containing no preservative, 0.2μm sterile filtered.
Preservative
Azide free
Storage
4 °C
Storage Comment
Store undiluted at 4°C. This preparation contains no preservatives, thus it should be handled under aseptic conditions.
Kayagaki, Kawasaki, Ebata, Ohmoto, Ikeda, Inoue, Yoshino, Okumura, Yagita: "Metalloproteinase-mediated release of human Fas ligand." in: The Journal of experimental medicine, Vol. 182, Issue 6, pp. 1777-83, (1996) (PubMed).
Tanaka, Suda, Takahashi, Nagata: "Expression of the functional soluble form of human fas ligand in activated lymphocytes." in: The EMBO journal, Vol. 14, Issue 6, pp. 1129-35, (1995) (PubMed).
Takahashi, Tanaka, Brannan, Jenkins, Copeland, Suda, Nagata: "Generalized lymphoproliferative disease in mice, caused by a point mutation in the Fas ligand." in: Cell, Vol. 76, Issue 6, pp. 969-76, (1994) (PubMed).
Target
FASL
(Fas Ligand (TNF Superfamily, Member 6) (FASL))
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 in the 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. Synonyms: Fas Ligand, CD95 Ligand