A compound attribute that is the ratio of amount of delta-like protein 1 (human) in blood to amount of TGF-beta receptor type-2 (human) in blood. The trait is DLL1/TGFBR2 protein level ratio in blood (OBA_2053633). Also known as: the ratio of amount of delta-like protein 1 (human) in blood to amount of TGF-beta receptor type-2 (human) in blood.