A compound attribute that is the ratio of amount of cytosolic 5'-nucleotidase 3A (human) in blood to amount of RWD domain-containing protein 1 (human) in blood. The trait is NT5C3A/RWDD1 protein level ratio in blood (OBA_2055206, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of cytosolic 5'-nucleotidase 3A (human) in blood to amount of RWD domain-containing protein 1 (human) in blood.