A compound attribute that is the ratio of amount of mitochondrial peptide methionine sulfoxide reductase (human) in blood to amount of protein phosphatase 1 regulatory subunit 12A (human) in blood. The trait is MSRA/PPP1R12A protein level ratio in blood (OBA_2054556). Also known as: the ratio of amount of mitochondrial peptide methionine sulfoxide reductase (human) in blood to amount of protein phosphatase 1 regulatory subunit 12A (human) in blood.