NT5C3A/NUB1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2055204) can be described as follows. A compound attribute that is the ratio of amount of cytosolic 5'-nucleotidase 3A (human) in blood to amount of NEDD8 ultimate buster 1 (human) in blood. Also known as: the ratio of amount of cytosolic 5'-nucleotidase 3A (human) in blood to amount of NEDD8 ultimate buster 1 (human) in blood.