A compound attribute that is the ratio of amount of proteasome activator complex subunit 2 (human) in blood to amount of proteasome assembly chaperone 3 (human) in blood. The trait is Ontology of Biological Attributes id OBA_2053203 (PSME2/PSMG3 protein level ratio in blood). Also known as: the ratio of amount of proteasome activator complex subunit 2 (human) in blood to amount of proteasome assembly chaperone 3 (human) in blood.