Heidi Hu/Sandbox 2: Difference between revisions

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[http://en.wikipedia.org/wiki/Helicobacter_pylori ''Helicobacter pylori''] is a pathogenic bacterium that colonizes the human gastric mucosa, which can cause peptic ulcers and has been linked to stomach cancers.<ref>PMID:9146793</ref> [http://en.wikipedia.org/wiki/Helicobacter_pylori ''H. pylori''] requires the activity of nickel-dependent enzymes, [NiFe]Hydrogenase and urease, to survive in the acidic environment of the stomach.<ref>PMID:2050411</ref><ref>PMID:8063376</ref><ref>PMID:12459589</ref> Thus nickel is an important nutrient for H. pylori.

[http://en.wikipedia.org/wiki/Helicobacter_pylori ''Helicobacter pylori''] is a pathogenic bacterium that colonizes the human gastric mucosa, which can cause peptic ulcers and has been linked to stomach cancers.<ref>PMID:9146793</ref> [http://en.wikipedia.org/wiki/Helicobacter_pylori ''H. pylori''] requires the activity of nickel-dependent enzymes, [NiFe]-[http://en.wikipedia.org/wiki/Hydrogenase ''Hydrogenase''] and urease, to survive in the acidic environment of the stomach.<ref>PMID:2050411</ref><ref>PMID:8063376</ref><ref>PMID:12459589</ref> Thus nickel is an important nutrient for H. pylori.

Accessory proteins HypABCDEF and UreIEFGH facilitate in the maturation of [NiFe]hydrogenase and urease respectively. HypA is a nickel metallochaperone normally associated with the maturation of [NiFe]hydrogenase. In H. pylori, however, it is also require for the full activy of urease, despite the presence of the urease-specific Ni-chaperone, UreE.

Heidi Hu/Sandbox 2: Difference between revisions

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 <br>
-[http://en.wikipedia.org/wiki/Helicobacter_pylori ''Helicobacter pylori''] is a pathogenic bacterium that colonizes the human gastric mucosa, which can cause peptic ulcers and has been linked to stomach cancers.<ref>PMID:9146793</ref>  [http://en.wikipedia.org/wiki/Helicobacter_pylori ''H. pylori''] requires the activity of nickel-dependent enzymes, [NiFe]Hydrogenase and urease, to survive in the acidic environment of the stomach.<ref>PMID:2050411</ref><ref>PMID:8063376</ref><ref>PMID:12459589</ref>  Thus nickel is an important nutrient for H. pylori.
+[http://en.wikipedia.org/wiki/Helicobacter_pylori ''Helicobacter pylori''] is a pathogenic bacterium that colonizes the human gastric mucosa, which can cause peptic ulcers and has been linked to stomach cancers.<ref>PMID:9146793</ref>  [http://en.wikipedia.org/wiki/Helicobacter_pylori ''H. pylori''] requires the activity of nickel-dependent enzymes, [NiFe]-[http://en.wikipedia.org/wiki/Hydrogenase ''Hydrogenase''] and urease, to survive in the acidic environment of the stomach.<ref>PMID:2050411</ref><ref>PMID:8063376</ref><ref>PMID:12459589</ref>  Thus nickel is an important nutrient for H. pylori.
 Accessory proteins HypABCDEF and UreIEFGH facilitate in the maturation of [NiFe]hydrogenase and urease respectively.  HypA is a nickel metallochaperone normally associated with the maturation of [NiFe]hydrogenase.  In H. pylori, however, it is also require for the full activy of urease, despite the presence of the urease-specific Ni-chaperone, UreE.