CST, 9346T, Phospho-p90RSK (Thr573) Antibody

Polyclonal Antibody for studying RSK1 (Thr573) phosphate. Validated for Western Blotting. Available in 2 sizes. Highly specific and rigorously validated in-house, Phospho-p90RSK (Thr573) Antibody (CST #9346) is ready to ship. Product Usage Information Western Blotting: 1:1000 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 Specificity / Sensitivity Phospho-p90RSK (Thr573) Antibody detects endogenous p90RSK protein only when phosphorylated at Thr573. Species Reactivity: Human, Mouse, Rat Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr573 of human p90RSK. Antibodies are purified by protein A and peptide affinity chromatography. Background The 90 kDa ribosomal S6 kinases (RSK1-4) are a family of widely expressed Ser/Thr kinases characterized by two nonidentical, functional kinase domains (1) and a carboxy-terminal docking site for extracellular signal-regulated kinases (ERKs) (2). Several sites both within and outside of the RSK kinase domain, including Ser380, Thr359, Ser363, and Thr573, are important for kinase activation (3). RSK1-3 are activated via coordinated phosphorylation by MAPKs, autophosphorylation, and phosphoinositide-3-OH kinase (PI3K) in response to many growth factors, polypeptide hormones, and neurotransmitters (3). Alternate Names 90 kDa ribosomal protein S6 kinase 1; dJ590P13.1 (ribosomal protein S6 kinase, 90kD, polypeptide 1); HU-1; KS6A1; MAP kinase-activated protein kinase 1a; MAPK-activated protein kinase 1a; MAPKAP kinase 1a; MAPKAPK-1a; MAPKAPK1; MAPKAPK1A; p90-RSK 1; p90RSK; p90RSK1; p90S6K; ribosomal protein S6 kinase A1; ribosomal protein S6 kinase alpha 1; Ribosomal protein S6 kinase alpha-1; ribosomal protein S6 kinase, 90kDa, polypeptide 1; Ribosomal S6 kinase 1; RPS6KA1; RSK; RSK-1; RSK1; S6K-alpha 1; S6K-alpha-1 Specification REACTIVITY: H M R SENSITIVITY: Endogenous MW (kDa): 90 SOURCE: Rabbit