A compound attribute that is the ratio of amount of cadherin-related family member 2 (human) in blood to amount of neprilysin (human) in blood. The trait is OBA_2054407 (CDHR2/MME protein level ratio in blood). Also known as: the ratio of amount of cadherin-related family member 2 (human) in blood to amount of neprilysin (human) in blood.