OBA_2053894 (MATN2/SCARA5 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of matrilin-2 (human) in blood to amount of scavenger receptor class A member 5 (human) in blood. Also known as: the ratio of amount of matrilin-2 (human) in blood to amount of scavenger receptor class A member 5 (human) in blood.