Anti-PDP2 antibodies are used in the immunodetection of the protein pyruvate dehydrogenase phosphatase catalytic subunit 2. In humans, the canonical protein has a reported length of 529 amino acid residues and a mass of 60 kDa. Its subcellular localization is in the mitochondria. A member of a the PP2C protein family, PDP2 is known to catalyze the dephosphorylation and concomitant reactivation of the alpha subunit of the E1 component of the pyruvate dehydrogenase complex. Synonyms for this target antigen include protein phosphatase 2C, magnesium-dependent, catalytic subunit 2, protein phosphatase, Mg2+/Mn2+ dependent 2B, pyruvate dehydrogenase phosphatase isoenzyme 2, and [Pyruvate dehydrogenase [acetyl-transferring]]-phosphatase 2, mitochondrial.