Ontology of Biological Attributes identifier OBA_2055583 (CHMP1A/TBCB protein level ratio in blood) 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 tubulin-folding cofactor B (human) in blood. Also known as: the ratio of amount of charged multivesicular body protein 1a (human) in blood to amount of tubulin-folding cofactor B (human) in blood.