A compound attribute that is the ratio of amount of bridging integrator 2 (human) in blood to amount of synaptosomal-associated protein 29 (human) in blood. The trait is BIN2/SNAP29 protein level ratio in blood (Ontology of Biological Attributes term OBA_2053285). Also known as: the ratio of amount of bridging integrator 2 (human) in blood to amount of synaptosomal-associated protein 29 (human) in blood.