A compound attribute that is the ratio of amount of tubulin-folding cofactor B (human) in blood to amount of tubulin-specific chaperone C (human) in blood. The trait is TBCB/TBCC protein level ratio in blood (OBA_2053038). Also known as: the ratio of amount of tubulin-folding cofactor B (human) in blood to amount of tubulin-specific chaperone C (human) in blood.