Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform (PPP2CA)

PP2A is the major phosphatase for microtubule-associated proteins (MAPs). PP2A can modulate the activity of phosphorylase B kinase casein kinase 2, mitogen-stimulated S6 kinase, and MAP-2 kinase.

Cooperates with SGO2 to protect centromeric cohesin from separase-mediated cleavage in oocytes especially during meiosis I (By similarity). Can dephosphorylate SV40 large T antigen and p53/TP53.