A compound attribute that is the ratio of amount of SH2B adapter protein 3 (human) in blood to amount of F-box-like/WD repeat-containing protein TBL1X (human) in blood. The trait is SH2B3/TBL1X protein level ratio in blood (Ontology of Biological Attributes id OBA_2055643). Also known as: the ratio of amount of SH2B adapter protein 3 (human) in blood to amount of F-box-like/WD repeat-containing protein TBL1X (human) in blood.