FXYD5/ICA1 protein level ratio in blood (OBA_2053777) can be described as follows. A compound attribute that is the ratio of amount of FXYD domain-containing ion transport regulator 5 (human) in blood to amount of islet cell autoantigen 1 (human) in blood. Also known as: the ratio of amount of FXYD domain-containing ion transport regulator 5 (human) in blood to amount of islet cell autoantigen 1 (human) in blood.