A compound attribute that is the ratio of amount of nectin-2 (human) in blood to amount of tumor necrosis factor receptor superfamily member 1A (human) in blood. The trait is NECTIN2/TNFRSF1A protein level ratio in blood (OBA_2055120). Also known as: the ratio of amount of nectin-2 (human) in blood to amount of tumor necrosis factor receptor superfamily member 1A (human) in blood.