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Title: Complete genome sequence of Nitrobacter hamburgensis X14 and comparative genomic analysis of species within the genus Nitrobacter.

Abstract

The alphaproteobacterium Nitrobacter hamburgensis X14 is a gram-negative facultative chemolithoautotroph that conserves energy from the oxidation of nitrite to nitrate. Sequencing and analysis of the Nitrobacter hamburgensis X14 genome revealed four replicons comprised of one chromosome (4.4 Mbp) and three plasmids (294, 188, and 121 kbp). Over 20% of the genome is composed of pseudogenes and paralogs. Whole-genome comparisons were conducted between N. hamburgensis and the finished and draft genome sequences of Nitrobacter winogradskyi and Nitrobacter sp. strain Nb-311A, respectively. Most of the plasmid-borne genes were unique to N. hamburgensis and encode a variety of functions (central metabolism, energy conservation, conjugation, and heavy metal resistance), yet approximately 21 kb of a approximately 28-kb "autotrophic" island on the largest plasmid was conserved in the chromosomes of Nitrobacter winogradskyi Nb-255 and Nitrobacter sp. strain Nb-311A. The N. hamburgensis chromosome also harbors many unique genes, including those for heme-copper oxidases, cytochrome b(561), and putative pathways for the catabolism of aromatic, organic, and one-carbon compounds, which help verify and extend its mixotrophic potential. A Nitrobacter "subcore" genome was also constructed by removing homologs found in strains of the closest evolutionary relatives, Bradyrhizobium japonicum and Rhodopseudomonas palustris. Among the Nitrobacter subcore inventory (116 genes), copiesmore » of genes or gene clusters for nitrite oxidoreductase (NXR), cytochromes associated with a dissimilatory nitrite reductase (NirK), PII-like regulators, and polysaccharide formation were identified. Many of the subcore genes have diverged significantly from, or have origins outside, the alphaproteobacterial lineage and may indicate some of the unique genetic requirements for nitrite oxidation in Nitrobacter.« less

Authors:
 [1];  [2];  [3];  [4];  [5];  [1];  [4];  [4];  [1];  [6];  [1]
  1. Oregon State University
  2. ORNL
  3. University of California, Riverside
  4. University of Louisville, Louisville
  5. Lawrence Livermore National Laboratory (LLNL)
  6. Princeton University
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931232
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Applied and Environmental Microbiology
Additional Journal Information:
Journal Volume: 74; Journal Issue: 9; Journal ID: ISSN 0099-2240
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; ENERGY CONSERVATION; GENES; HEAVY METALS; NITRITES; NITRATES

Citation Formats

Starkenburg, Shawn R, Larimer, Frank W, Stein, Lisa Y, Klotz, Martin G, Chain, Patrick S. G., Sayavedra-Soto, LA, Poret-Peterson, Amisha T, Gentry, ME, Arp, D J, Ward, Bess B, and Bottomley, Peter J. Complete genome sequence of Nitrobacter hamburgensis X14 and comparative genomic analysis of species within the genus Nitrobacter.. United States: N. p., 2008. Web. doi:10.1128/AEM.02311-07.
Starkenburg, Shawn R, Larimer, Frank W, Stein, Lisa Y, Klotz, Martin G, Chain, Patrick S. G., Sayavedra-Soto, LA, Poret-Peterson, Amisha T, Gentry, ME, Arp, D J, Ward, Bess B, & Bottomley, Peter J. Complete genome sequence of Nitrobacter hamburgensis X14 and comparative genomic analysis of species within the genus Nitrobacter.. United States. https://doi.org/10.1128/AEM.02311-07
Starkenburg, Shawn R, Larimer, Frank W, Stein, Lisa Y, Klotz, Martin G, Chain, Patrick S. G., Sayavedra-Soto, LA, Poret-Peterson, Amisha T, Gentry, ME, Arp, D J, Ward, Bess B, and Bottomley, Peter J. 2008. "Complete genome sequence of Nitrobacter hamburgensis X14 and comparative genomic analysis of species within the genus Nitrobacter.". United States. https://doi.org/10.1128/AEM.02311-07.
@article{osti_931232,
title = {Complete genome sequence of Nitrobacter hamburgensis X14 and comparative genomic analysis of species within the genus Nitrobacter.},
author = {Starkenburg, Shawn R and Larimer, Frank W and Stein, Lisa Y and Klotz, Martin G and Chain, Patrick S. G. and Sayavedra-Soto, LA and Poret-Peterson, Amisha T and Gentry, ME and Arp, D J and Ward, Bess B and Bottomley, Peter J},
abstractNote = {The alphaproteobacterium Nitrobacter hamburgensis X14 is a gram-negative facultative chemolithoautotroph that conserves energy from the oxidation of nitrite to nitrate. Sequencing and analysis of the Nitrobacter hamburgensis X14 genome revealed four replicons comprised of one chromosome (4.4 Mbp) and three plasmids (294, 188, and 121 kbp). Over 20% of the genome is composed of pseudogenes and paralogs. Whole-genome comparisons were conducted between N. hamburgensis and the finished and draft genome sequences of Nitrobacter winogradskyi and Nitrobacter sp. strain Nb-311A, respectively. Most of the plasmid-borne genes were unique to N. hamburgensis and encode a variety of functions (central metabolism, energy conservation, conjugation, and heavy metal resistance), yet approximately 21 kb of a approximately 28-kb "autotrophic" island on the largest plasmid was conserved in the chromosomes of Nitrobacter winogradskyi Nb-255 and Nitrobacter sp. strain Nb-311A. The N. hamburgensis chromosome also harbors many unique genes, including those for heme-copper oxidases, cytochrome b(561), and putative pathways for the catabolism of aromatic, organic, and one-carbon compounds, which help verify and extend its mixotrophic potential. A Nitrobacter "subcore" genome was also constructed by removing homologs found in strains of the closest evolutionary relatives, Bradyrhizobium japonicum and Rhodopseudomonas palustris. Among the Nitrobacter subcore inventory (116 genes), copies of genes or gene clusters for nitrite oxidoreductase (NXR), cytochromes associated with a dissimilatory nitrite reductase (NirK), PII-like regulators, and polysaccharide formation were identified. Many of the subcore genes have diverged significantly from, or have origins outside, the alphaproteobacterial lineage and may indicate some of the unique genetic requirements for nitrite oxidation in Nitrobacter.},
doi = {10.1128/AEM.02311-07},
url = {https://www.osti.gov/biblio/931232}, journal = {Applied and Environmental Microbiology},
issn = {0099-2240},
number = 9,
volume = 74,
place = {United States},
year = {Thu May 01 00:00:00 EDT 2008},
month = {Thu May 01 00:00:00 EDT 2008}
}