A compound attribute that is the ratio of amount of CD2-associated protein (human) in blood to amount of pyridoxal phosphate homeostasis protein (human) in blood. The trait is CD2AP/PLPBP protein level ratio in blood (Ontology of Biological Attributes id OBA_2055294). Also known as: the ratio of amount of CD2-associated protein (human) in blood to amount of pyridoxal phosphate homeostasis protein (human) in blood.