A compound attribute that is the ratio of amount of alpha-enolase (human) in blood to amount of serpin B6 (human) in blood. The trait is ENO1/SERPINB6 protein level ratio in blood (OBA_2054675, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of alpha-enolase (human) in blood to amount of serpin B6 (human) in blood.