A compound attribute that is the ratio of amount of Crk-like protein (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood. The trait is OBA_2054499 (CRKL/GRAP2 protein level ratio in blood). Also known as: the ratio of amount of Crk-like protein (human) in blood to amount of GRB2-related adapter protein 2 (human) in blood.