2AAA Antibody – Rabbit Polyclonal

PPP2R1A: The PR65 subunit of protein phosphatase 2A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. Required for proper chromosome segregation and for centromeric localization of SGOL1 in mitosis. Found in a complex with at least ARL2, PPP2CB, PPP2R1A, PPP2R2A, PPP2R5E and TBCD. PP2A consists of a common heterodimeric core enzyme, composed of PPP2CA a 36 kDa catalytic subunit (subunit C) and PPP2R1A a 65 kDa constant regulatory subunit (PR65 or subunit A), that associates with a variety of regulatory subunits. Proteins that associate with the core dimer include three families of regulatory subunits B (the R2/B/PR55/B55, R3/B''/PR72/PR130/PR59 and R5/B'/B56 families), the 48 kDa variable regulatory subunit, viral proteins, and cell signaling molecules. Interacts with IPO9. Interacts with TP53 and SGOL1. Interacts with PLA2G16; this interaction might decrease PP2A activity. Belongs to the phosphatase 2A regulatory subunit A family.

Protein type: Motility/polarity/chemotaxis; Protein phosphatase, regulatory subunit

Chromosomal Location of Human Ortholog: 19q13.41

Cellular Component: chromosome, pericentric region; cytosol; protein phosphatase type 2A complex

Molecular Function: antigen binding; protein binding; protein heterodimerization activity; protein phosphatase regulator activity

Biological Process: apoptosis; chromosome segregation; G2/M transition of mitotic cell cycle; mitotic nuclear envelope reassembly; mRNA catabolic process, nonsense-mediated decay; protein amino acid dephosphorylation; protein complex assembly

Disease: Mental Retardation, Autosomal Dominant 36