Ontology of Biological Attributes term OBA_2053912 (APP/FKBP1B protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of amyloid-beta precursor protein (human) in blood to amount of peptidyl-prolyl cis-trans isomerase FKBP1B (human) in blood. Also known as: the ratio of amount of amyloid-beta precursor protein (human) in blood to amount of peptidyl-prolyl cis-trans isomerase FKBP1B (human) in blood.