PIK3IP1/TNFRSF1B protein level ratio in blood (OBA_2054010, an Ontology of Biological Attributes identifier) 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 tumor necrosis factor receptor superfamily member 1B (human) in blood. Also known as: the ratio of amount of phosphoinositide-3-kinase-interacting protein 1 (human) in blood to amount of tumor necrosis factor receptor superfamily member 1B (human) in blood.