Ontology of Biological Attributes entry OBA_2054727 (EPHB6/VWC2 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of ephrin type-B receptor 6 (human) in blood to amount of brorin (human) in blood. Also known as: the ratio of amount of ephrin type-B receptor 6 (human) in blood to amount of brorin (human) in blood.