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The Genome of Deep-Sea Vent Chemolithoautotroph Thiomicrospira crunogena XCL-2
Journal article   Open access   Peer reviewed

The Genome of Deep-Sea Vent Chemolithoautotroph Thiomicrospira crunogena XCL-2

Kathleen M Scott, Stefan M Sievert, Fereniki N Abril, Lois A Ball, Chantell J Barrett, Rodrigo A Blake, Amanda J Boller, Patrick S. G Chain, Justine A Clark, Carisa R Davis, …
PLoS biology, v 4(12), pp 2196-2212
14 Nov 2006
PMID: 17105352
url
https://doi.org/10.1371/journal.pbio.0040383View
Published, Version of Record (VoR)CC BY V4.0 Open

Abstract

Eubacteria Biochemistry Bioinformatics Biotechnology Computational Biology Ecology Evolution Gene Therapy Genetics Genomics Microbiology Physiology
Presented here is the complete genome sequence of Thiomicrospira crunogena XCL-2, representative of ubiquitous chemolithoautotrophic sulfur-oxidizing bacteria isolated from deep-sea hydrothermal vents. This gammaproteobacterium has a single chromosome (2,427,734 base pairs), and its genome illustrates many of the adaptations that have enabled it to thrive at vents globally. It has 14 methyl-accepting chemotaxis protein genes, including four that may assist in positioning it in the redoxcline. A relative abundance of coding sequences (CDSs) encoding regulatory proteins likely control the expression of genes encoding carboxysomes, multiple dissolved inorganic nitrogen and phosphate transporters, as well as a phosphonate operon, which provide this species with a variety of options for acquiring these substrates from the environment. Thiom. crunogena XCL-2 is unusual among obligate sulfur-oxidizing bacteria in relying on the Sox system for the oxidation of reduced sulfur compounds. The genome has characteristics consistent with an obligately chemolithoautotrophic lifestyle, including few transporters predicted to have organic allocrits, and Calvin-Benson-Bassham cycle CDSs scattered throughout the genome. Secrets of the deep are revealed from the genome sequence of Thiomicrospira crunogena XCL-2, a chemolithoautotrophic sulfur-oxidizing gammaproteobacterium isolated from deep-sea hydrothermal vents.

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Web of Science research areas
Biochemistry & Molecular Biology
Biology
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