PPP2R1A

Cancer-related genes, Disease related genes, Human disease related genes, Metabolic proteins, Plasma proteins

Intracellular

Low cell type specificity

Low immune cell specificity

Low cell line specificity

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. Found in a complex with at least ARL2, PPP2CB, PPP2R1A, PPP2R2A, PPP2R5E and TBCD (By similarity). Interacts with FOXO1; the interaction dephosphorylates FOXO1 on AKT-mediated phosphorylation sites (By similarity). Interacts with IPO9 (PubMed:12670497). Interacts with TP53 and SGO1 (PubMed:17245430, 16580887). Interacts with PLA2G16; this interaction might decrease PP2A activity (PubMed:17374643). Interacts with CTTNBP2NL (PubMed:18782753). Interacts with GNA12; the interaction promotes protein phosphatase 2A activation causing dephosphorylation of MAPT (PubMed:15525651). Interacts with CIP2A; this interaction stabilizes CIP2A (PubMed:28174209). Interacts with PABIR1/FAM122A (PubMed:27588481). Interacts with ADCY8; antagonizes interaction between ADCY8 and calmodulin (By similarity). Interacts with CRTC3 (when phosphorylated at 'Ser-391') (PubMed:30611118). Interacts with SPRY2 (PubMed:17974561). (Microbial infection) Interacts with JC virus small t antigen; this interaction inhibits PPP2R1A activity.