ADA2/COMP protein level ratio in blood (OBA_2053681) can be described as follows. A compound attribute that is the ratio of amount of adenosine deaminase 2 (human) in blood to amount of cartilage oligomeric matrix protein (human) in blood. Also known as: the ratio of amount of adenosine deaminase 2 (human) in blood to amount of cartilage oligomeric matrix protein (human) in blood.