PPP1R2/TBL1X protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2053506) can be described as follows. A compound attribute that is the ratio of amount of protein phosphatase inhibitor 2 (human) in blood to amount of F-box-like/WD repeat-containing protein TBL1X (human) in blood. Also known as: the ratio of amount of protein phosphatase inhibitor 2 (human) in blood to amount of F-box-like/WD repeat-containing protein TBL1X (human) in blood.