CST, 4992S, PABP1 Antibody

Polyclonal Antibody for studying PABP1. Validated for Western Blotting,Immunohistochemistry (Paraffin). Highly specific and rigorously validated in-house, PABP1 Antibody (CST #4992) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunohistochemistry (Paraffin): 1:100 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, Immunohistochemistry (Paraffin) Specificity / Sensitivity PABP1 Antibody detects endogenous levels of total PABP1 and PABP3 proteins. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to amino acids at the amino-terminus of human PABP1. Antibodies are purified by protein A and peptide affinity chromatography. Background Poly(A)-binding protein 1 (PABP1) associates with the 3' poly(A) tail of mRNA and also eIF4F (1,2). eIF4F is a complex whose functions include the recognition of the mRNA 5' cap structure (eIF4E), delivery of an RNA helicase to the 5' region (eIF4A), bridging of the mRNA and the ribosome (eIF4G), and circularization of the mRNA via interaction between eIF4G and the poly(A) binding protein (PABP). PABP1 has been shown to have multiple functions, including translation initiation, mRNA stabilization, and mRNA turnover (3,4). Phosphorylation of PABP has been shown to enhance RNA binding in eukaryotes, and PABP1 has been shown to shuttle between the nucleus and cytoplasm (5,6). PABP1 is methylated on Arg455 and Arg460 by the CARM1 protein methyltransferase (7,8); however, the function of this methylation has yet to be determined. Alternate Names PAB1; PABP; PABP 1; PABP-1; PABP1; PABPC1; PABPC2; PABPL1; poly(A) binding protein cytoplasmic 1; poly(A) binding protein, cytoplasmic 1; poly(A) binding protein, cytoplasmic 2; Poly(A)-binding protein 1; Polyadenylate-binding protein 1 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 71 SOURCE: Rabbit