A compound attribute that is the ratio of amount of mitogen-activated protein kinase kinase kinase kinase 5 (human) in blood to amount of STAM-binding protein (human) in blood. The trait is MAP4K5/STAMBP protein level ratio in blood (OBA_2053888). Also known as: the ratio of amount of mitogen-activated protein kinase kinase kinase kinase 5 (human) in blood to amount of STAM-binding protein (human) in blood.