OBA_2053758 (ADH4/KYNU protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of all-trans-retinol dehydrogenase [NAD(+)] ADH4 (human) in blood to amount of kynureninase (human) in blood. Also known as: the ratio of amount of all-trans-retinol dehydrogenase [NAD(+)] ADH4 (human) in blood to amount of kynureninase (human) in blood.