ALCAM/IL1RL2 protein level ratio in blood (OBA_2054295) can be described as follows. A compound attribute that is the ratio of amount of CD166 antigen (human) in blood to amount of interleukin-1 receptor-like 2 (human) in blood. Also known as: the ratio of amount of CD166 antigen (human) in blood to amount of interleukin-1 receptor-like 2 (human) in blood.