NUCB2/TRIAP1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2055165) can be described as follows. A compound attribute that is the ratio of amount of nucleobindin-2 (human) in blood to amount of TP53-regulated inhibitor of apoptosis 1 (human) in blood. Also known as: the ratio of amount of nucleobindin-2 (human) in blood to amount of TP53-regulated inhibitor of apoptosis 1 (human) in blood.