CST, 3549T, PP2C-alpha (D18C10) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying PP2C alpha. Validated for WB,IP,IHC,IF,F. Available in 2 sizes. Highly specific and rigorously validated in-house, PP2C-alpha (D18C10) Rabbit Monoclonal Antibody (CST #3549) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 Immunohistochemistry (Paraffin): 1:200 Immunofluorescence (Immunocytochemistry): 1:400 Flow Cytometry (Fixed/Permeabilized): 1:100 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 38317 . Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry), Flow Cytometry (Fixed/Permeabilized) Specificity / Sensitivity PP2C-alpha (D18C10) Rabbit Monoclonal Antibody detects endogenous levels of total PP2C-α protein. Species Reactivity: Human, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser375 of human PP2C-α. Background The α isoform of protein phosphatase 2C (PP2C-α) is the catalytic subunit of a widely expressed serine/threonine phosphatase involved in regulation of the cell stress response (1,2). Also known as magnesium-dependent protein phosphatase (PPM1A), this monomeric phosphatase is a member of a conserved group of proteins that acts on many different substrates in numerous pathways. PP2C-α inhibits p38 MAPK and SAPK/JNK pathways activated in response to cell stress as seen in both and studies. Specifically, PP2C-α removes phosphates from MKK3 and MKK7, reducing activity of both proteins and inhibiting activation of the downstream kinases JNK and p38 MAPK, respectively (3). Another PP2C-α substrate is IKKβ, the critical regulator of NF-κB signaling. Dephosphorylation of IKKβ at Ser177/181 by PPM1A and PPM1B results in inactivation of IKKβ and inhibition of NF-κB signaling (4). PP2C-α is one of the phosphatases responsible for removing phosphate residues from cyclin dependent protein kinases. In a study using HeLa cell extracts, PP2C-α dephospohrylates CDK2 and CDK6, with a preference toward interacting with CDK2 phosphorylated at Thr160, a residue found in the activating T-loop of the kinase. Removal of phosphates from this site is thought to inactivate cyclin-associated kinases (5). PP2C-α induces cell cycle arrest and apoptosis, likely through activation of p53 though other pathways may also contribute to PP2C-α mediated cell death (6). Additional PP2C-α substrates include the Wnt signaling pathway protein axin (7) and CFTR, a chloride channel protein implicated in cystic fibrosis (8). Alternate Names FLJ42306; MGC9201; phosphatase 2C alpha; PP2C-alpha; PP2CA; PP2Calpha; PPM1A; PPPM1A; Protein phosphatase 1A; protein phosphatase 1A (formerly 2C), magnesium-dependent, alpha isoform; protein phosphatase 2C alpha isoform; Protein phosphatase 2C isoform alpha; Protein phosphatase IA; protein phosphatase, Mg2+/Mn2+ dependent 1A; protein phosphatase, Mg2+/Mn2+ dependent, 1A Specification REACTIVITY: H Mk SENSITIVITY: Endogenous MW (kDa): 43 Source/Isotype: Rabbit IgG