A compound attribute that is the ratio of amount of CD2-associated protein (human) in blood to amount of sorting nexin-9 (human) in blood. The trait is CD2AP/SNX9 protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2055295). Also known as: the ratio of amount of CD2-associated protein (human) in blood to amount of sorting nexin-9 (human) in blood.