OBA_2053103 (SUSD1/THPO protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of sushi domain-containing protein 1 (human) in blood to amount of thrombopoietin (human) in blood. Also known as: the ratio of amount of sushi domain-containing protein 1 (human) in blood to amount of thrombopoietin (human) in blood.