A compound attribute that is the ratio of amount of disabled homolog 2 (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood. The trait is Ontology of Biological Attributes term OBA_2055041 (DAB2/GRAP2 protein level ratio in blood). Also known as: the ratio of amount of disabled homolog 2 (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood.