A compound attribute that is the ratio of amount of B-cell scaffold protein with ankyrin repeats (human) in blood to amount of Delta(14)-sterol reductase LBR (human) in blood. The trait is BANK1/LBR protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2053580). Also known as: the ratio of amount of B-cell scaffold protein with ankyrin repeats (human) in blood to amount of Delta(14)-sterol reductase LBR (human) in blood.