A compound attribute that is the ratio of amount of B-cell receptor CD22 (human) in blood to amount of Fc receptor-like protein 1 (human) in blood. The trait is OBA_2055371 (CD22/FCRL1 protein level ratio in blood). Also known as: the ratio of amount of B-cell receptor CD22 (human) in blood to amount of Fc receptor-like protein 1 (human) in blood.