Ontology of Biological Attributes identifier OBA_2054316 (ANXA3/MSRA protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of annexin A3 (human) in blood to amount of mitochondrial peptide methionine sulfoxide reductase (human) in blood. Also known as: the ratio of amount of annexin A3 (human) in blood to amount of mitochondrial peptide methionine sulfoxide reductase (human) in blood.