Bismuth (Bi3+) binds equal molar amounts of HypB from Helicobacter pylori at the conserved metal site, and concomitantly induces the protein dimerization and excess Bi3+ causes further oligomerization of HypB, resulting in HypB GTPase dysfunction.
铋(Bi3+)在保守的金属位点上与幽门螺杆菌(Helicobacter pylori)的HypB结合,两者摩尔比相等,并同时诱导蛋白质二聚化。过量的Bi3+会导致HypB进一步寡聚化,导致HypB GTP酶功能障碍。