FURIN/IGSF3 protein level ratio in blood (OBA_2053760) can be described as follows. A compound attribute that is the ratio of amount of furin (human) in blood to amount of immunoglobulin superfamily member 3 (human) in blood. Also known as: the ratio of amount of furin (human) in blood to amount of immunoglobulin superfamily member 3 (human) in blood.