>sp|P56153|IPYR_HELPY Inorganic pyrophosphatase OS=Helicobacter pylori GN=ppa MNLEKLEVSHDADSLCVVIEISKHSNIKYELDKESGALMVDRVLYGAQNYPANYGFVPNT LGSDGDPVDALVLSDVAFQAGSVVKARLVGVLNMEDESGMDEKLIALPIDKIDPTHSYVK DIDDLSKHTLDKIKHFFETYKDLEPNKWVKVKGFENKESAIKVLEKAIKAYQG