A compound attribute that is the ratio of amount of CD166 antigen (human) in blood to amount of autotaxin (human) in blood. The trait is Ontology of Biological Attributes identifier OBA_2054293 (ALCAM/ENPP2 protein level ratio in blood). Also known as: the ratio of amount of CD166 antigen (human) in blood to amount of autotaxin (human) in blood.