A compound attribute that is the ratio of amount of FAS-associated death domain protein (human) in blood to amount of cytoplasmic protein NCK2 (human) in blood. The trait is FADD/NCK2 protein level ratio in blood (OBA_2055342). Also known as: the ratio of amount of FAS-associated death domain protein (human) in blood to amount of cytoplasmic protein NCK2 (human) in blood.