A compound attribute that is the ratio of amount of syndecan-4 (human) in blood to amount of NEDD4-like E3 ubiquitin-protein ligase WWP2 (human) in blood. The trait is SDC4/WWP2 protein level ratio in blood (OBA_2055748). Also known as: the ratio of amount of syndecan-4 (human) in blood to amount of NEDD4-like E3 ubiquitin-protein ligase WWP2 (human) in blood.