CRACR2A/MAVS protein level ratio in blood (OBA_2054609, an Ontology of Biological Attributes entry) 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 mitochondrial antiviral-signaling protein (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 mitochondrial antiviral-signaling protein (human) in blood.