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pylori urease activity protein amidase helicobacter enzyme expression regulation helicobacter pylori formamidase activity promoter formamidase strain sequence nickel condition transcription wild-type ammonia growth medium concentration urease activity induction level immun urease expression resistance transcriptional microbiol acid resistance effect production nickel-responsive nikr gene study system urease enzyme activity vliet nicl 2 ph 7.0 enzyme activity mutation amidase activity urea promoter pathogen helicobacter pylori result availability iron-repleted conditions wild-type strain acid-responsive acidic conditions wild-type h ammonia production nickel-responsive induction acidic supplementation ph 5.5 kuster increase pylori 26695 transcriptional level 50/ region identification fur gene substrate iron-repleted hybridization helicobacter pylori urease pylori strain 26695 cascade response 5.5 2001. ammonia-producing enzymes iron availability repressor colonization
3 Most Recent Publications
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Acid-responsive gene induction of ammonia-producing enzymes in Helicobacter pylori is mediated via a metal-responsive repressor cascade
(Article)
Vliet, A.H.M. van Kuipers, E.J. Stoof, J. Poppelaars, S.W. Kusters, J.G. |
2004-01-01
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Differential regulation of amidase- and formamidase-mediated ammonia production by the Helicobacter pylori fur repressor.
(Article)
Vliet, A.H.M. van Stoof, J. Poppelaars, S.W. Bereswill, S. Homuth, G. Kist, M. Kuipers, E.J. Kusters, J.G. |
2003-03-14
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NikR mediates nickel-responsive transcriptional induction of urease expression in Helicobacter pylori
(Article)
Vliet, A.H.M. van Poppelaars, S.W. Davies, B.J. Stoof, J. Bereswill, S. Kist, M. Penn, C.W. Kuipers, E.J. Kusters, J.G. |
2002-01-01
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