A compound attribute that is the ratio of amount of desmoglein-3 (human) in blood to amount of desmoglein-4 (human) in blood. The trait is DSG3/DSG4 protein level ratio in blood (Ontology of Biological Attributes id OBA_2053192). Also known as: the ratio of amount of desmoglein-3 (human) in blood to amount of desmoglein-4 (human) in blood.