A compound attribute that is the ratio of amount of agrin (human) in blood to amount of beta-1,4-galactosyltransferase 1 (human) in blood. The trait is AGRN/B4GALT1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2053638). Also known as: the ratio of amount of agrin (human) in blood to amount of beta-1,4-galactosyltransferase 1 (human) in blood.