A compound attribute that is the ratio of amount of heme oxygenase 2 (human) in blood to amount of tudor and KH domain-containing protein (human) in blood. The trait is HMOX2/TDRKH protein level ratio in blood (OBA_2053061). Also known as: the ratio of amount of heme oxygenase 2 (human) in blood to amount of tudor and KH domain-containing protein (human) in blood.