Ontology of Biological Attributes identifier OBA_2053206 (PSRC1/RABEPK protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of proline/serine-rich coiled-coil protein 1 (human) in blood to amount of Rab9 effector protein with kelch motifs (human) in blood. Also known as: the ratio of amount of proline/serine-rich coiled-coil protein 1 (human) in blood to amount of Rab9 effector protein with kelch motifs (human) in blood.