Ontology of Biological Attributes entry OBA_2055267 (CD160/IL15 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of CD160 antigen (human) in blood to amount of interleukin-15 (human) in blood. Also known as: the ratio of amount of CD160 antigen (human) in blood to amount of interleukin-15 (human) in blood.