BIN2/VTA1 protein level ratio in blood (Ontology of Biological Attributes entry OBA_2053290) can be described as follows. A compound attribute that is the ratio of amount of bridging integrator 2 (human) in blood to amount of vacuolar protein sorting-associated protein VTA1 homolog (human) in blood. Also known as: the ratio of amount of bridging integrator 2 (human) in blood to amount of vacuolar protein sorting-associated protein VTA1 homolog (human) in blood.