A compound attribute that is the ratio of amount of catechol O-methyltransferase (human) in blood to amount of Rho-related GTP-binding protein RhoC (human) in blood. The trait is COMT/RHOC protein level ratio in blood (OBA_2053848). Also known as: the ratio of amount of catechol O-methyltransferase (human) in blood to amount of Rho-related GTP-binding protein RhoC (human) in blood.