A compound attribute that is the ratio of amount of CD166 antigen (human) in blood to amount of leucine-rich repeat-containing protein 25 (human) in blood. The trait is Ontology of Biological Attributes term OBA_2054296 (ALCAM/LRRC25 protein level ratio in blood). Also known as: the ratio of amount of CD166 antigen (human) in blood to amount of leucine-rich repeat-containing protein 25 (human) in blood.