CC2D1A/CRADD protein level ratio in blood (OBA_2054798, an Ontology of Biological Attributes term) can be described as follows. A compound attribute that is the ratio of amount of coiled-coil and C2 domain-containing protein 1A (human) in blood to amount of death domain-containing protein CRADD (human) in blood. Also known as: the ratio of amount of coiled-coil and C2 domain-containing protein 1A (human) in blood to amount of death domain-containing protein CRADD (human) in blood.