PLXNA4/SNAP29 protein level ratio in blood (OBA_2053522) can be described as follows. A compound attribute that is the ratio of amount of plexin-A4 (human) in blood to amount of synaptosomal-associated protein 29 (human) in blood. Also known as: the ratio of amount of plexin-A4 (human) in blood to amount of synaptosomal-associated protein 29 (human) in blood.