A compound attribute that is the ratio of amount of protein HEXIM1 (human) in blood to amount of NEDD8 ultimate buster 1 (human) in blood. The trait is HEXIM1/NUB1 protein level ratio in blood (OBA_2053018). Also known as: the ratio of amount of protein HEXIM1 (human) in blood to amount of NEDD8 ultimate buster 1 (human) in blood.