PP2A IHC Antibody

Description The catalytic subunit of human protein phosphatase 2A (PPP2CA) encodes a 309-amino acid polypeptide.It is localized to chromosome 5. The gene (approximately 30 kbp) is composed of seven exons and six introns. It is predicted to be important for phosphatase enzymatic activity. Methylation of the C-terminal leucine residue (Leu309) of protein serine/threonine phosphatase 2A catalytic subunit (PP2AC) is known to regulate catalytic activity in vitro. Furthermore, PP2A has a fundamental role in cardiac function, and suggests that disturbances in protein phosphatase expression and activity may cause or exacerbate the course of cardiac diseases. Catalog Number IW-PA1068 Quantity 9 ml Host Rabbit Clone Polyclonal Isotype IgG Immunogen A synthetic peptide corresponding to a sequence mapping near the N-terminal of human PP2A, identical to the related rat and mouse sequence. Purity Immunogen affinity purified Conjugate Unconjugated Species Reactivity Human, mouse, rat.Not tested in other species. Positive Control Human mammary cancer Cellular Localization Cytoplasmic Form Ready to use solution in PBS with stabilizer and 0.01% sodium azide. No further dilution needed. Serum blocking step should be omitted. Storage Store at 2-8 CC. Do not freeze. Applications IHC-P: Heat induced epitope retrieval is required on formalin fixed paraffin sections. IHC-Fr: Not tested. ICC: Acetone fixed cells. Limitations This product is intended for Research Use Only. Interpretation of the test results is solely the responsibility of the user. Precautions Users should follow general laboratory precautions when handling this product. Wear personal protective equipment to avoid contact with skin and eyes. References 1. Stone SR, Mayer R, Wernet W, Maurer F, Hofsteenge J, Hemmings BA. The nucleotide sequence of the cDNA encoding the human lung protein phosphatase 2A alpha catalytic subunit. Nucleic Acids Res. 1988 Dec 9; 16(23):11365. 2. Jones TA, Barker HM, da Cruz e Silva EF, Mayer-Jaekel RE, Hemmings BA, Spurr NK, Sheer D, Cohen PT. Localization of the genes encoding the catalytic subunits of protein phosphatase 2A to human chromosome bands 5q23-->q31 and 8p12-->p11.2, respectively. Cytogenet Cell Genet. 1993; 63(1):35-41. 3. Khew-Goodall Y, Mayer RE, Maurer F, Stone SR, Hemmings BA. Structure and transcriptional regulation of protein phosphatase 2A catalytic subunit genes. Biochemistry. 1991 Jan 8; 30(1):89-97. 4. Arino J, Woon CW, Brautigan DL, Miller TB Jr, Johnson GL. Human liver phosphatase 2A: cDNA and amino acid sequence of two catalytic subunit isotypes. Proc Natl Acad Sci U S A. 1988 Jun; 85(12):4252-6. 5. Bryant JC, Westphal RS, Wadzinski BE. Methylated C-terminal leucine residue of PP2A catalytic subunit is important for binding of regulatory Balpha subunit. Biochem J. 1999 Apr 15; 339 ( Pt 2):241-6. 6. Gergs U, Boknik P, Buchwalow I, Fabritz L, Matus M, Justus I, Hanske G, Schmitz W, Neumann J. Overexpression of the catalytic subunit of protein phosphatase 2A impairs cardiac function. J Biol Chem. 2004 Sep 24; 279(39):40827-34.