A compound attribute that is the ratio of amount of aminoacylase-1 (human) in blood to amount of all-trans-retinol dehydrogenase [NAD(+)] ADH4 (human) in blood. The trait is ACY1/ADH4 protein level ratio in blood (OBA_2055781). Also known as: the ratio of amount of aminoacylase-1 (human) in blood to amount of all-trans-retinol dehydrogenase [NAD(+)] ADH4 (human) in blood.