A compound attribute that is the ratio of amount of large proline-rich protein BAG6 (human) in blood to amount of bone morphogenetic protein 6 (human) in blood. The trait is OBA_2053568 (BAG6/BMP6 protein level ratio in blood). Also known as: the ratio of amount of large proline-rich protein BAG6 (human) in blood to amount of bone morphogenetic protein 6 (human) in blood.