A compound attribute that is the ratio of amount of adenosine deaminase 2 (human) in blood to amount of vascular cell adhesion protein 1 (human) in blood. The trait is OBA_2053682 (ADA2/VCAM1 protein level ratio in blood). Also known as: the ratio of amount of adenosine deaminase 2 (human) in blood to amount of vascular cell adhesion protein 1 (human) in blood.