Ontology of Biological Attributes id OBA_2055663 (SNAP29/TJAP1 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of synaptosomal-associated protein 29 (human) in blood to amount of tight junction-associated protein 1 (human) in blood. Also known as: the ratio of amount of synaptosomal-associated protein 29 (human) in blood to amount of tight junction-associated protein 1 (human) in blood.