A compound attribute that is the ratio of amount of kynurenine--oxoglutarate transaminase 1 (human) in blood to amount of pyridoxal phosphate homeostasis protein (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2055541 (KYAT1/PLPBP protein level ratio in blood). Also known as: the ratio of amount of kynurenine--oxoglutarate transaminase 1 (human) in blood to amount of pyridoxal phosphate homeostasis protein (human) in blood.