Abstract
In this study, new strains were isolated from an environment with elevated arsenic levels, Sainte-Marie-aux-Mines (France), and the diversity of aoxB genes encoding the arsenite oxidase large subunit was investigated. The distribution of bacterial aoxB genes is wider than what was previously thought. AoxB subfamilies characterized by specific signatures were identified. An exhaustive analysis of AoxB sequences from this study and from public databases shows that horizontal gene transfer has likely played a role in the spreading of aoxB in prokaryotic communities.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Archaea / enzymology*
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Archaea / genetics
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Archaea / isolation & purification
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Archaea / metabolism*
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Arsenites / metabolism*
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Bacteria / enzymology*
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Bacteria / genetics
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Bacteria / isolation & purification
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Bacteria / metabolism*
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Cluster Analysis
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DNA, Archaeal / chemistry
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DNA, Archaeal / genetics
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DNA, Bacterial / chemistry
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DNA, Bacterial / genetics
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Environmental Microbiology*
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France
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Molecular Sequence Data
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Oxidation-Reduction
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Oxidoreductases / genetics*
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Phylogeny
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Sequence Analysis, DNA
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Sequence Homology
Substances
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Arsenites
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DNA, Archaeal
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DNA, Bacterial
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Oxidoreductases
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arsenite oxidase
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arsenite
Associated data
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GENBANK/HQ449570
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