En la muerte de la FID

Alvarez-Ossorio, José Ramón Pérez

doi:10.1076/epri.10.12.57.6544

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2002

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“…In archaea, puri¢cation of dissimilatory nitrate reductases has been reported from denitrifying halophiles in the genus Haloferax [3,5,14]. The Haloferax enzymes are membranebound, and found in heterodimeric or trimeric con¢gurations.…”

Section: Introductionmentioning

confidence: 99%

Sequence and electron paramagnetic resonance analyses of nitrate reductase NarGH from a denitrifying halophilic euryarchaeote Haloarcula marismortui

2002

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Genes encoding the NarG and NarH subunits of the molybdo^iron^sulfur enzyme, a nitrate reductase from a denitrifying halophilic euryarchaeota Haloarcula marismortui, were cloned and sequenced. An incomplete cysteine motif reminiscent of that for a [4Fe^4S] cluster binding was found in the NarG subunit, and complete cysteine arrangements for binding one [3Fe^4S] cluster and three [4Fe^4S] clusters were found in the NarH subunit. In conjunction with chemical, electron paramagnetic resonance, and subcellular localization analyses, we firmly establish that the H. marismortui enzyme is a new archaeal member of the known membrane-bound nitrate reductases whose homologs are found in the bacterial domain. ß

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Section: Introductionmentioning

confidence: 99%