Ontology of Biological Attributes term OBA_2055338 (FADD/GRAP2 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of FAS-associated death domain protein (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood. Also known as: the ratio of amount of FAS-associated death domain protein (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood.