A compound attribute that is the ratio of level of 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase FUT3 in blood to amount of leukocyte immunoglobulin-like receptor subfamily A member 2 (human) in blood. The trait is FUT3/LILRA2 protein level ratio in blood (OBA_2053764). Also known as: the ratio of level of 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase FUT3 in blood to amount of leukocyte immunoglobulin-like receptor subfamily A member 2 (human) in blood.