Ontology of Biological Attributes identifier OBA_2053485 (PMVK/TBCB protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of phosphomevalonate kinase (human) in blood to amount of tubulin-folding cofactor B (human) in blood. Also known as: the ratio of amount of phosphomevalonate kinase (human) in blood to amount of tubulin-folding cofactor B (human) in blood.