TBC1D23/USO1 protein level ratio in blood (OBA_2053109) can be described as follows. A compound attribute that is the ratio of amount of TBC1 domain family member 23 (human) in blood to amount of general vesicular transport factor p115 (human) in blood. Also known as: the ratio of amount of TBC1 domain family member 23 (human) in blood to amount of general vesicular transport factor p115 (human) in blood.