Ontology of Biological Attributes entry OBA_2053447 (GRAP2/SRC protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of GRB2-related adapter protein 2 (human) in blood to amount of proto-oncogene tyrosine-protein kinase Src (human) in blood. Also known as: the ratio of amount of GRB2-related adapter protein 2 (human) in blood to amount of proto-oncogene tyrosine-protein kinase Src (human) in blood.