OBA_2053657 (AHSP/HMBS protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of alpha-hemoglobin-stabilizing protein (human) in blood to amount of porphobilinogen deaminase (human) in blood. Also known as: the ratio of amount of alpha-hemoglobin-stabilizing protein (human) in blood to amount of porphobilinogen deaminase (human) in blood.