Abstract
Denitrovibrio acetiphilus N2460T is one of the few members of the phylum Deferribacteres with a sequenced genome. N2460T was capable of growing with dimethyl sulfoxide, selenate, or arsenate provided as a terminal electron acceptor, and we identified 15 genes that could possibly encode respiratory reductases for these compounds. The protein encoded by one of these genes, YP_003504839, clustered with respiratory arsenate reductases on a phylogenetic tree. Transcription of the gene for YP_003504839, Dacet_2121, was highly induced when arsenate was provided as a terminal electron acceptor. Dacet_2121 exists in a possible operon that is distinct from the previously characterized respiratory arsenate reductase operon in Shewanella sp. ANA-3.
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We would like to thank the Department of Energy’s Joint Genome Institute’s Interpret a Genome for Education program for providing software and support to the undergraduate researchers involved in this project.
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Communicated by Gregory Cook.
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Denton, K., Atkinson, M.M., Borenstein, S.P. et al. Identification of a possible respiratory arsenate reductase in Denitrovibrio acetiphilus, a member of the phylum Deferribacteres. Arch Microbiol 195, 661–670 (2013). https://doi.org/10.1007/s00203-013-0915-5
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DOI: https://doi.org/10.1007/s00203-013-0915-5