A compound attribute that is the ratio of amount of calcium-binding and coiled-coil domain-containing protein 1 (human) in blood to amount of methionine aminopeptidase 2 (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2054838 (CALCOCO1/METAP2 protein level ratio in blood). Also known as: the ratio of amount of calcium-binding and coiled-coil domain-containing protein 1 (human) in blood to amount of methionine aminopeptidase 2 (human) in blood.