UX4O

UX4O is an allosteric inhibitor of UDP-glucose dehydrogenase (UGDH) . The human UGDH (hUGDH) is a hexamer that catalyzes the oxidation of UDP-glucose to UDP-glucuronic acid. It exists in an active (E) state and an inactive (EΩ) state, which requires binding with the allosteric inhibitor UDP-xylose (UDP-Xyl) to stabilize the inactive form. UX4O may also serve as a physiologically relevant inhibitor of bacterial allosteric UGDH that does not produce UDP-Xyl.