CHMP1A/PTPN6 protein level ratio in blood (Ontology of Biological Attributes entry OBA_2055576) can be described as follows. A compound attribute that is the ratio of amount of charged multivesicular body protein 1a (human) in blood to amount of tyrosine-protein phosphatase non-receptor type 6 (human) in blood. Also known as: the ratio of amount of charged multivesicular body protein 1a (human) in blood to amount of tyrosine-protein phosphatase non-receptor type 6 (human) in blood.