A compound attribute that is the ratio of amount of aspartate--tRNA ligase, cytoplasmic (human) in blood to amount of STAM-binding protein (human) in blood. The trait is DARS1/STAMBP protein level ratio in blood (OBA_2055082). Also known as: the ratio of amount of aspartate--tRNA ligase, cytoplasmic (human) in blood to amount of STAM-binding protein (human) in blood.