A compound attribute that is the ratio of amount of death domain-containing protein CRADD (human) in blood to amount of tubulin-specific chaperone C (human) in blood. The trait is CRADD/TBCC protein level ratio in blood (OBA_2054525, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of death domain-containing protein CRADD (human) in blood to amount of tubulin-specific chaperone C (human) in blood.