OBA_2055651 (SKAP2/VSIR protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of Src kinase-associated phosphoprotein 2 (human) in blood to amount of V-type immunoglobulin domain-containing suppressor of T-cell activation (human) in blood. Also known as: the ratio of amount of Src kinase-associated phosphoprotein 2 (human) in blood to amount of V-type immunoglobulin domain-containing suppressor of T-cell activation (human) in blood.