A compound attribute that is the ratio of amount of dual adapter for phosphotyrosine and 3-phosphotyrosine and 3-phosphoinositide (human) in blood to amount of synaptosomal-associated protein 23 (human) in blood. The trait is DAPP1/SNAP23 protein level ratio in blood (OBA_2055077). Also known as: the ratio of amount of dual adapter for phosphotyrosine and 3-phosphotyrosine and 3-phosphoinositide (human) in blood to amount of synaptosomal-associated protein 23 (human) in blood.