A compound attribute that is the ratio of amount of early activation antigen CD69 (human) in blood to amount of protein phosphatase inhibitor 2 (human) in blood. The trait is CD69/PPP1R2 protein level ratio in blood (OBA_2053353, an Ontology of Biological Attributes identifier). Also known as: the ratio of amount of early activation antigen CD69 (human) in blood to amount of protein phosphatase inhibitor 2 (human) in blood.