PTPN1/WWP2 protein level ratio in blood (Ontology of Biological Attributes term OBA_2053213) can be described as follows. A compound attribute that is the ratio of amount of tyrosine-protein phosphatase non-receptor type 1 (human) in blood to amount of NEDD4-like E3 ubiquitin-protein ligase WWP2 (human) in blood. Also known as: the ratio of amount of tyrosine-protein phosphatase non-receptor type 1 (human) in blood to amount of NEDD4-like E3 ubiquitin-protein ligase WWP2 (human) in blood.