CST, 4389S, NFAT1 Antibody

Polyclonal Antibody for studying NFAT1. Validated for Western Blotting,Immunoprecipitation,Immunofluorescence (Immunocytochemistry). Highly specific and rigorously validated in-house, NFAT1 Antibody (CST #4389) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 Immunofluorescence (Immunocytochemistry): 1:50 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunofluorescence (Immunocytochemistry) Specificity / Sensitivity NFAT1 Antibody detects endogenous levels of total NFAT1 protein. Species Reactivity: Human, Mouse Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human NFAT1 protein. Antibodies were purified by protein A and peptide affinity chromatography. Background The NFAT (nuclear factor of activated T cells) family of proteins consists of NFAT1 (NFATc2 or NFATp), NFAT2 (NFATc1 or NFATc), NFAT3 (NFATc4), and NFAT4 (NFATc3 or NFATx). All members of this family are transcription factors with a Rel homology domain and regulate gene transcription in concert with AP-1 (Jun/Fos) to orchestrate an effective immune response (1,2). NFAT proteins are predominantly expressed in cells of the immune system, but are also expressed in skeletal muscle, keratinocytes, and adipocytes, regulating cell differentiation programs in these cells (3). In resting cells, NFAT proteins are heavily phosphorylated and localized in the cytoplasm. Increased intracellular calcium concentrations activate the calcium/calmodulin-dependent serine phosphatase calcineurin, which dephosphorylates NFAT proteins, resulting in their subsequent translocation to the nucleus (2). Termination of NFAT signaling occurs upon declining calcium concentrations and phosphorylation of NFAT by kinases such as GSK-3 or CK1 (3,4). Cyclosporin A and FK506 are immunosuppressive drugs that inhibit calcineurin and thus retain NFAT proteins in the cytoplasm (5). Alternate Names NF-ATc2; NF-ATp; NFAC2; NFAT pre-existing subunit; NFAT transcription complex, preexisting component; NFAT1; NFATC2; NFATP; nuclear factor of activated T cells 2; Nuclear factor of activated T-cells, cytoplasmic 2; nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 2; nuclear factor of activated T-cells, preexisting component; preexisting nuclear factor of activated T-cells 2; T cell transcription factor NFAT1; T-cell transcription factor NFAT1 Specification REACTIVITY: H M SENSITIVITY: Endogenous MW (kDa): 140 SOURCE: Rabbit