A compound attribute that is the ratio of amount of forkhead box protein O1 (human) in blood to amount of mitogen-activated protein kinase kinase kinase kinase 5 (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2054145 (FOXO1/MAP4K5 protein level ratio in blood). Also known as: the ratio of amount of forkhead box protein O1 (human) in blood to amount of mitogen-activated protein kinase kinase kinase kinase 5 (human) in blood.