A compound attribute that is the ratio of amount of FYN-binding protein 1 (human) in blood to amount of mesencephalic astrocyte-derived neurotrophic factor (human) in blood. The trait is FYB1/MANF protein level ratio in blood (OBA_2053685). Also known as: the ratio of amount of FYN-binding protein 1 (human) in blood to amount of mesencephalic astrocyte-derived neurotrophic factor (human) in blood.