Urease-associated heat shock protein of Helicobacter pylori.

  title={Urease-associated heat shock protein of Helicobacter pylori.},
  author={Doyle J. Evans and Dolores G. Evans and Lars Engstrand and David Y Graham},
  journal={Infection and immunity},
  volume={60 5},
Helicobacter pylori urease is an extracellular, cell-bound enzyme with a molecular weight of approximately 600,000 (600K enzyme) comprising six 66K and six 31K subunits. A 62K protein is closely associated with the H. pylori urease, both in crude preparations and after gel filtration; this protein can be removed from the urease by ion-exchange chromatography without inactivating the enzyme. We purified this urease-associated protein and determined its N-terminal amino acid sequence. The… CONTINUE READING

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