Ontology of Biological Attributes term OBA_2054054 (PDGFB/PPP1R12A protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of platelet-derived growth factor subunit B (human) in blood to amount of protein phosphatase 1 regulatory subunit 12A (human) in blood. Also known as: the ratio of amount of platelet-derived growth factor subunit B (human) in blood to amount of protein phosphatase 1 regulatory subunit 12A (human) in blood.