A compound attribute that is the ratio of amount of dual specificity mitogen-activated protein kinase kinase 6 (human) in blood to amount of cytosolic 5'-nucleotidase 3A (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2053830 (MAP2K6/NT5C3A protein level ratio in blood). Also known as: the ratio of amount of dual specificity mitogen-activated protein kinase kinase 6 (human) in blood to amount of cytosolic 5'-nucleotidase 3A (human) in blood.