CRACR2A/IRAG2 protein level ratio in blood (OBA_2054606, an Ontology of Biological Attributes term) can be described as follows. A compound attribute that is the ratio of amount of EF-hand calcium-binding domain-containing protein 4B (human) in blood to amount of inositol 1,4,5-triphosphate receptor associated 2 (human) in blood. Also known as: the ratio of amount of EF-hand calcium-binding domain-containing protein 4B (human) in blood to amount of inositol 1,4,5-triphosphate receptor associated 2 (human) in blood.