Ontology of Biological Attributes term OBA_2055535 (ITGA5/VCAM1 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of integrin alpha-5 (human) in blood to amount of vascular cell adhesion protein 1 (human) in blood. Also known as: the ratio of amount of integrin alpha-5 (human) in blood to amount of vascular cell adhesion protein 1 (human) in blood.