A compound attribute that is the ratio of amount of corneodesmosin (human) in blood to amount of lymphocyte antigen 6D (human) in blood. The trait is CDSN/LY6D protein level ratio in blood (OBA_2054241, an Ontology of Biological Attributes identifier). Also known as: the ratio of amount of corneodesmosin (human) in blood to amount of lymphocyte antigen 6D (human) in blood.