A compound attribute that is the ratio of amount of charged multivesicular body protein 1a (human) in blood to amount of tubulinyl-Tyr carboxypeptidase 1 (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2055585 (CHMP1A/VASH1 protein level ratio in blood). Also known as: the ratio of amount of charged multivesicular body protein 1a (human) in blood to amount of tubulinyl-Tyr carboxypeptidase 1 (human) in blood.