Claim: Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform is classified as an antibody which is a protein that act as biological catalysts (biocatalysts) and is known to catalyze more than 5,000 biochemical reaction types.
Evidence: Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform is an enzyme that (in humans) is encoded by the PPP2CA gene.