OBA_2054139 (FOLR2/MSR1 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of folate receptor beta (human) in blood to amount of macrophage scavenger receptor types I and II (human) in blood. Also known as: the ratio of amount of folate receptor beta (human) in blood to amount of macrophage scavenger receptor types I and II (human) in blood.