PPP1R12A/TJAP1 protein level ratio in blood (OBA_2053499) can be described as follows. A compound attribute that is the ratio of amount of protein phosphatase 1 regulatory subunit 12A (human) in blood to amount of tight junction-associated protein 1 (human) in blood. Also known as: the ratio of amount of protein phosphatase 1 regulatory subunit 12A (human) in blood to amount of tight junction-associated protein 1 (human) in blood.