Ontology of Biological Attributes id OBA_2054008 (PIK3IP1/RGMB protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of phosphoinositide-3-kinase-interacting protein 1 (human) in blood to amount of repulsive guidance molecule B (human) in blood. Also known as: the ratio of amount of phosphoinositide-3-kinase-interacting protein 1 (human) in blood to amount of repulsive guidance molecule B (human) in blood.