A compound attribute that is the ratio of amount of alkaline phosphatase, placental type (human) in blood to amount of lysosome-associated membrane glycoprotein 3 (human) in blood. The trait is Ontology of Biological Attributes term OBA_2054306 (ALPP/LAMP3 protein level ratio in blood). Also known as: the ratio of amount of alkaline phosphatase, placental type (human) in blood to amount of lysosome-associated membrane glycoprotein 3 (human) in blood.