Anti-PPP2R1A Antibody Picoband®

Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform is an enzyme that in humans is encoded by the PPP2R1A gene. This gene encodes a constant regulatory subunit of protein phosphatase 2. Protein phosphatase 2 is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The constant regulatory subunit A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. This gene encodes an alpha isoform of the constant regulatory subunit A. Alternatively spliced transcript variants have been described.

V-set domain-containing T-cell activation inhibitor 1; B7 homolog 4; B7-H4; B7h.5; Immune costimulatory protein B7-H4; Protein B7S1; T-cell costimulatory molecule B7x; VTCN1; B7H4; UNQ659; PRO1291

A synthetic peptide corresponding to a sequence in the middle region of human PPP2R1A, which shares 95.2% amino acid (aa) sequence identity with mouse PPP2R1A, respectively.

Overexpressed in breast, ovarian, endometrial, renal cell (RCC) and non-small-cell lung cancers (NSCLC) . Expressed on activated T- and B-cells, monocytes and dendritic cells, but not expressed in most normal tissues (at protein level) . Widely expressed, including in kidney, liver, lung, ovary, placenta, spleen and testis.

Cell Biology, Co-Activators/Co-Repressors, Epigenetics and Nuclear Signaling, Nuclear Receptors, Nuclear Signaling Pathways, Proteasome / Ubiquitin, Proteolysis/Ubiquitin, Transcription, Transcription Factors, Ubiquitin & Ubiquitin Like Modifiers

Negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, plays an important role, together with regulatory T-cells (Treg), in the suppression of tumor-associated antigen-specific T-cell immunity. Involved in promoting epithelial cell transformation.

1. Deciphering Developmental Disorders Study. Large-scale discovery of novel genetic causes of developmental disorders. Nature 519: 223-228, 2015. 2. Everett, A. D., Xue, C., Stoops, T. Developmental expression of protein phosphatase 2A in the kidney. J. Am. Soc. Nephrol. 10: 1737-1745, 1999. 3. Groves, M. R., Hanlon, N., Turowski, P., Hemmings, B. A., Barford, D. The structure of the protein phosphatase 2A PR65/A subunit reveals the conformation of its 15 tandemly repeated HEAT motifs. Cell 96: 99-110, 1999.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.