A compound attribute that is the ratio of amount of tyrosine-protein phosphatase non-receptor type 6 (human) in blood to amount of sulfotransferase 1A1 (human) in blood. The trait is PTPN6/SULT1A1 protein level ratio in blood (Ontology of Biological Attributes term OBA_2053215). Also known as: the ratio of amount of tyrosine-protein phosphatase non-receptor type 6 (human) in blood to amount of sulfotransferase 1A1 (human) in blood.