Genome annotation provides insight into carbon monoxide and hydrogen metabolism in Rubrivivax gelatinosus
- Univ. of Wyoming, Laramie, WY (United States). Dept. of Chemical and Petroleum Engineering
- National Renewable Energy Lab. (NREL), Golden, CO (United States). Biosciences Center
- Pacific Biosciences, Menlo Park, CA (United States
- Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab.
In this article, we report here the sequencing and analysis of the genome of the purple non-sulfur photosynthetic bacterium Rubrivivax gelatinosus CBS. This microbe is a model for studies of its carboxydotrophic life style under anaerobic condition, based on its ability to utilize carbon monoxide (CO) as the sole carbon substrate and water as the electron acceptor, yielding CO2 and H2 as the end products. The CO-oxidation reaction is known to be catalyzed by two enzyme complexes, the CO dehydrogenase and hydrogenase. As expected, analysis of the genome of Rx. gelatinosus CBS reveals the presence of genes encoding both enzyme complexes. The CO-oxidation reaction is CO-inducible, which is consistent with the presence of two putative CO-sensing transcription factors in its genome. Genome analysis also reveals the presence of two additional hydrogenases, an uptake hydrogenase that liberates the electrons in H2 in support of cell growth, and a regulatory hydrogenase that senses H2 and relays the signal to a two-component system that ultimately controls synthesis of the uptake hydrogenase. The genome also contains two sets of hydrogenase maturation genes which are known to assemble the catalytic metallocluster of the hydrogenase NiFe active site. Finally and collectively, the genome sequence and analysis information reveals the blueprint of an intricate network of signal transduction pathways and its underlying regulation that enables Rx. gelatinosus CBS to thrive on CO or H2 in support of cell growth.
- Research Organization:
- NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Program (EE-3F); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- FG02-91ER20021
- OSTI ID:
- 1169210
- Report Number(s):
- NREL/JA-2700-61988
- Journal Information:
- PLoS ONE, Journal Name: PLoS ONE Journal Issue: 12 Vol. 9; ISSN 1932-6203
- Publisher:
- Public Library of ScienceCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Transcriptome analysis of a thermophilic and hydrogenogenic carboxydotroph Carboxydothermus pertinax
|
journal | April 2019 |
Similar Records
Draft Genome Sequence of Rubrivivax gelatinosus CBS
Inactivation of the uptake hydrogenase in the purple non-sulfur photosynthetic bacterium Rubrivivax gelatinosus CBS enables a biological water–gas shift platform for H2 production
Journal Article
·
Fri Jun 01 00:00:00 EDT 2012
· Journal of Bacteriology
·
OSTI ID:1050137
Inactivation of the uptake hydrogenase in the purple non-sulfur photosynthetic bacterium Rubrivivax gelatinosus CBS enables a biological water–gas shift platform for H2 production
Journal Article
·
Sun Jun 30 20:00:00 EDT 2019
· Journal of Industrial Microbiology and Biotechnology
·
OSTI ID:1772501