A compound attribute that is the ratio of amount of basigin (human) in blood to amount of protocadherin-1 (human) in blood. The trait is BSG/PCDH1 protein level ratio in blood (OBA_2053309, an Ontology of Biological Attributes id). Also known as: the ratio of amount of basigin (human) in blood to amount of protocadherin-1 (human) in blood.