Heterologous Hydrogenase Overproduction Systems for Biotechnology—An Overview
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Regeneration of Unconventional Natural Gas by Methanogens Co
www.nature.com/scientificreports OPEN Regeneration of unconventional natural gas by methanogens co‑existing with sulfate‑reducing prokaryotes in deep shale wells in China Yimeng Zhang1,2,3, Zhisheng Yu1*, Yiming Zhang4 & Hongxun Zhang1 Biogenic methane in shallow shale reservoirs has been proven to contribute to economic recovery of unconventional natural gas. However, whether the microbes inhabiting the deeper shale reservoirs at an average depth of 4.1 km and even co-occurring with sulfate-reducing prokaryote (SRP) have the potential to produce biomethane is still unclear. Stable isotopic technique with culture‑dependent and independent approaches were employed to investigate the microbial and functional diversity related to methanogenic pathways and explore the relationship between SRP and methanogens in the shales in the Sichuan Basin, China. Although stable isotopic ratios of the gas implied a thermogenic origin for methane, the decreased trend of stable carbon and hydrogen isotope value provided clues for increasing microbial activities along with sustained gas production in these wells. These deep shale-gas wells harbored high abundance of methanogens (17.2%) with ability of utilizing various substrates for methanogenesis, which co-existed with SRP (6.7%). All genes required for performing methylotrophic, hydrogenotrophic and acetoclastic methanogenesis were present. Methane production experiments of produced water, with and without additional available substrates for methanogens, further confrmed biomethane production via all three methanogenic pathways. Statistical analysis and incubation tests revealed the partnership between SRP and methanogens under in situ sulfate concentration (~ 9 mg/L). These results suggest that biomethane could be produced with more fexible stimulation strategies for unconventional natural gas recovery even at the higher depths and at the presence of SRP. -
A Web Tool for Hydrogenase Classification and Analysis Dan Søndergaard1, Christian N
www.nature.com/scientificreports OPEN HydDB: A web tool for hydrogenase classification and analysis Dan Søndergaard1, Christian N. S. Pedersen1 & Chris Greening2,3 H2 metabolism is proposed to be the most ancient and diverse mechanism of energy-conservation. The Received: 24 June 2016 metalloenzymes mediating this metabolism, hydrogenases, are encoded by over 60 microbial phyla Accepted: 09 September 2016 and are present in all major ecosystems. We developed a classification system and web tool, HydDB, Published: 27 September 2016 for the structural and functional analysis of these enzymes. We show that hydrogenase function can be predicted by primary sequence alone using an expanded classification scheme (comprising 29 [NiFe], 8 [FeFe], and 1 [Fe] hydrogenase classes) that defines 11 new classes with distinct biological functions. Using this scheme, we built a web tool that rapidly and reliably classifies hydrogenase primary sequences using a combination of k-nearest neighbors’ algorithms and CDD referencing. Demonstrating its capacity, the tool reliably predicted hydrogenase content and function in 12 newly-sequenced bacteria, archaea, and eukaryotes. HydDB provides the capacity to browse the amino acid sequences of 3248 annotated hydrogenase catalytic subunits and also contains a detailed repository of physiological, biochemical, and structural information about the 38 hydrogenase classes defined here. The database and classifier are freely and publicly available at http://services.birc.au.dk/hyddb/ Microorganisms conserve energy by metabolizing H2. Oxidation of this high-energy fuel yields electrons that can be used for respiration and carbon-fixation. This diffusible gas is also produced in diverse fermentation and 1 anaerobic respiratory processes . H2 metabolism contributes to the growth and survival of microorganisms across the three domains of life, including chemotrophs and phototrophs, lithotrophs and heterotrophs, aerobes and 1,2 anaerobes, mesophiles and extremophiles alike . -
Metabolic Engineering of Cupriavidus Necator for Heterotrophic and Autotrophic Alka(E)Ne Production Lucie Crepin, Eric Lombard, Stéphane Guillouet
Metabolic engineering of Cupriavidus necator for heterotrophic and autotrophic alka(e)ne production Lucie Crepin, Eric Lombard, Stéphane Guillouet To cite this version: Lucie Crepin, Eric Lombard, Stéphane Guillouet. Metabolic engineering of Cupriavidus necator for heterotrophic and autotrophic alka(e)ne production. Metabolic Engineering, Elsevier, 2016, 37, pp.92- 101. 10.1016/j.ymben.2016.05.002. hal-01886395 HAL Id: hal-01886395 https://hal.archives-ouvertes.fr/hal-01886395 Submitted on 14 Apr 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Metabolic Engineering 37 (2016) 92–101 Contents lists available at ScienceDirect Metabolic Engineering journal homepage: www.elsevier.com/locate/ymben Metabolic engineering of Cupriavidus necator for heterotrophic and autotrophic alka(e)ne production Lucie Crépin, Eric Lombard, Stéphane E Guillouet n LISBP, Université de Toulouse, CNRS, INRA, INSA, 135 Avenue de Rangueil, 31077 Toulouse CEDEX 04, France article info abstract Article history: Alkanes of defined carbon chain lengths can serve as alternatives to petroleum-based fuels. Recently, Received 18 March 2016 microbial pathways of alkane biosynthesis have been identified and enabled the production of alkanes in Received in revised form non-native producing microorganisms using metabolic engineering strategies. -
Scope of the Thesis
Unraveling predatory-prey interactions between bacteria Dissertation To Fulfill the Requirements for the Degree of „Doctor rerum naturalium“ (Dr. rer. nat.) Submitted to the Council of the Faculty of Biology and Pharmacy of the Friedrich Schiller University Jena By Ivana Seccareccia (M.Sc. in Biology) born on 8th April 1986 in Rijeka, Croatia Die Forschungsarbeit im Rahmen dieser Dissertation wurde am Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e.V. – Hans-Knöll–Institut in der Nachwuchsgruppe Sekundärmetabolismus räuberischer Bakterien unter der Betreuung von Dr. habil. Markus Nett von Oktober 2011 bis Oktober 2015 in Jena durchgeführt. Gutachter: ……………………………………………. ………………………………………….… ……………………………………………. Tag der öffentlichen Verteidigung: We make our world significant by the courage of our questions and by the depth of our answers. Carl Sagan Table of Contents 1 Introduction ......................................................................................................................... 6 1.1 Predation in the microbial community ........................................................................... 6 1.2 Bacterial predators .......................................................................................................... 7 1.3 Phases of predation ......................................................................................................... 8 1.3.1 Seeking prey ......................................................................................................... 9 1.3.2 Prey recognition -
Hydrogenases of Methanogens
ANRV413-BI79-18 ARI 27 April 2010 21:0 Hydrogenases from Methanogenic Archaea, Nickel, a Novel Cofactor, and H2 Storage Rudolf K. Thauer, Anne-Kristin Kaster, Meike Goenrich, Michael Schick, Takeshi Hiromoto, and Seigo Shima Max Planck Institute for Terrestrial Microbiology, D-35043 Marburg, Germany; email: [email protected] Annu. Rev. Biochem. 2010. 79:507–36 Key Words First published online as a Review in Advance on H2 activation, energy-converting hydrogenase, complex I of the March 17, 2010 respiratory chain, chemiosmotic coupling, electron bifurcation, The Annual Review of Biochemistry is online at reversed electron transfer biochem.annualreviews.org This article’s doi: Abstract 10.1146/annurev.biochem.030508.152103 Most methanogenic archaea reduce CO2 with H2 to CH4. For the Copyright c 2010 by Annual Reviews. activation of H2, they use different [NiFe]-hydrogenases, namely All rights reserved energy-converting [NiFe]-hydrogenases, heterodisulfide reductase- 0066-4154/10/0707-0507$20.00 associated [NiFe]-hydrogenase or methanophenazine-reducing by University of Texas - Austin on 06/10/13. For personal use only. [NiFe]-hydrogenase, and F420-reducing [NiFe]-hydrogenase. The energy-converting [NiFe]-hydrogenases are phylogenetically related Annu. Rev. Biochem. 2010.79:507-536. Downloaded from www.annualreviews.org to complex I of the respiratory chain. Under conditions of nickel limitation, some methanogens synthesize a nickel-independent [Fe]- hydrogenase (instead of F420-reducing [NiFe]-hydrogenase) and by that reduce their nickel requirement. The [Fe]-hydrogenase harbors a unique iron-guanylylpyridinol cofactor (FeGP cofactor), in which a low-spin iron is ligated by two CO, one C(O)CH2-, one S-CH2-, and a sp2-hybridized pyridinol nitrogen. -
A Web Tool for Hydrogenase Classification and Analysis
bioRxiv preprint doi: https://doi.org/10.1101/061994; this version posted September 16, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 HydDB: A web tool for hydrogenase 2 classification and analysis 3 Dan Søndergaarda, Christian N. S. Pedersena, Chris Greeningb, c* 4 5 a Aarhus University, Bioinformatics Research Centre, C.F. Møllers Allé 8, Aarhus 6 DK-8000, Denmark 7 b The Commonwealth Scientific and Industrial Research Organisation, Land and 8 Water Flagship, Clunies Ross Street, Acton, ACT 2060, Australia 9 c Monash University, School of Biological Sciences, Clayton, VIC 2800, Australia 10 11 Correspondence: 12 Dr Chris Greening ([email protected]), Monash University, School of 13 Biological Sciences, Clayton, VIC 2800, Australia 14 Dan Søndergaard ([email protected]), Aarhus University, Bioinformatics Research 15 Centre, C.F. Møllers Allé 8, Aarhus DK-8000, Denmark 1 bioRxiv preprint doi: https://doi.org/10.1101/061994; this version posted September 16, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 16 Abstract 17 H2 metabolism is proposed to be the most ancient and diverse mechanism of 18 energy-conservation. The metalloenzymes mediating this metabolism, 19 hydrogenases, are encoded by over 60 microbial phyla and are present in all major 20 ecosystems. -
Data Driven Modelling of a Chemically Defined Growth Medium For
bioRxiv preprint doi: https://doi.org/10.1101/548891; this version posted February 13, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Data Driven Modelling of a Chemically Defined Growth Medium for Cupriavidus necator H16 Christopher C. Azubuike, Martin G. Edwards, Angharad M. R. Gatehouse and Thomas P. Howard School of Natural and Environmental Sciences, Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle-upon-Tyne, United Kingdom Cupriavidus necator is a Gram-negative soil bacterium of ma- as a chassis capable of exploiting renewable feedstock for jor biotechnological interest. It is a producer of the bioplas- the biosynthesis of valuable products (7). More widely, the tic 3-polyhydroxybutyrate, has been exploited in bioremedia- genus is known to encode genes facilitating metabolism of tion processes, and it’s lithoautotrophic capabilities suggest it environmental pollutants such as aromatics and heavy metals may function as a microbial cell factory upgrading renewable making it a potential microbial remediator (8, 9, 17–19). resources to fuels and chemicals. It remains necessary however to develop appropriate experimental resources to permit con- As with any bacterium, the development of C. necator as trolled bioengineering and system optimisation of this micro- an industrial chassis requires appropriate tools for studying bial chassis. A key resource for physiological, biochemical and and engineering the organism. One of these resources is metabolic studies of any microorganism is a chemically defined the availability of a characterised, chemically defined growth growth medium. -
[Nife]-Hydrogenase Ingmar Bürstela,B, Elisabeth Siebertb, Stefan Frielingsdorfa,B, Ingo Zebgerb, Bärbel Friedricha, and Oliver Lenza,B,1
CO synthesized from the central one-carbon pool as source for the iron carbonyl in O2-tolerant [NiFe]-hydrogenase Ingmar Bürstela,b, Elisabeth Siebertb, Stefan Frielingsdorfa,b, Ingo Zebgerb, Bärbel Friedricha, and Oliver Lenza,b,1 aDepartment of Biology, Microbiology, Humboldt-Universität zu Berlin, 10115 Berlin, Germany; and bDepartment of Chemistry, Biophysical Chemistry, Technische Universität Berlin, 10623 Berlin, Germany Edited by Harry B. Gray, California Institute of Technology, Pasadena, CA, and approved November 8, 2016 (received for review September 1, 2016) Hydrogenases are nature’s key catalysts involved in both microbial of the HypD and HypC proteins acts as scaffold for the assembly of consumption and production of molecular hydrogen. H2 exhibits a the Fe(CN)2(CO) entity of the active site (7, 8). The HypF and − strongly bonded, almost inert electron pair and requires transition HypE proteins deliver the CN ligands, which are synthesized metals for activation. Consequently, all hydrogenases are metal- from carbamoyl phosphate (9). Incorporation of the nickel is fa- loenzymes that contain at least one iron atom in the catalytic center. cilitated by the HypB and HypA proteins (10). However, source For appropriate interaction with H2, the iron moiety demands for a and synthesis of the active site CO ligand remained elusive. sophisticated coordination environment that cannot be provided Maturation studies on the O2-tolerant, energy-generating just by standard amino acids. This dilemma has been overcome by [NiFe]-hydrogenases in the facultative H2-oxidizing bacterium the introduction of unprecedented chemistry—that is, by ligating Ralstonia eutropha H16 indicate that at least two different meta- the iron with carbon monoxide (CO) and cyanide (or equivalent) bolic sources exist for CO ligand synthesis (11). -
Desulfovibrio Vulgaris Defenses Against Oxidative and Nitrosative Stresses
Desulfovibrio vulgaris defenses against oxidative and nitrosative stresses Mafalda Cristina de Oliveira Figueiredo Dissertation presented to obtain the Ph.D degree in Biochemistry Instituto de Tecnologia Química e Biológica | Universidade Nova de Lisboa Supervisor: Dr. Lígia M. Saraiva Co-supervisor: Prof. Miguel Teixeira Oeiras, September 2013 From left to right: Carlos Romão (president of the jury), Fernando Antunes (3rd opponent), Ana Melo (4th opponent), Lígia Saraiva (supervisor), Carlos Salgueiro (2nd opponent), Mafalda Figueiredo, Alain Dolla (1st opponent) and Miguel Teixeira (co-supervisor). 17th September 2013 Second edition, October 2013 Molecular Genetics of Microbial Resistance Laboratory Instituto de Tecnologia Química e Biológica Universidade Nova de Lisboa 2780-157 Portugal “Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.” Marie Curie Acknowledgments The present work would not have been possible without the help, the support and the friendship of several people whom I would like to formally express my sincere gratitude: Dr. Lígia M. Saraiva Firstly I would like to express my gratitude to my supervisor Dr. Lígia M. Saraiva, without her ideas and persistence I would not have come this far. I thank her for the constant support and encouragement when things did not go so well, for the trust she placed in me and in my work and for always being there when I needed over these five years. I have to thank Dr. Lígia for the good advices and for the careful revision of this thesis. Thanks for everything!!! Prof. Miguel Teixeira To my co-supervisor Prof. -
Draft Genome of a Heavy-Metal-Resistant Bacterium, Cupriavidus Sp
Korean Journal of Microbiology (2020) Vol. 56, No. 3, pp. 343-346 pISSN 0440-2413 DOI https://doi.org/10.7845/kjm.2020.0061 eISSN 2383-9902 Copyright ⓒ 2020, The Microbiological Society of Korea Draft genome of a heavy-metal-resistant bacterium, Cupriavidus sp. strain SW-Y-13, isolated from river water in Korea Kiwoon Baek , Young Ho Nam , Eu Jin Chung , and Ahyoung Choi* Nakdonggang National Institute of Biological Resources (NNIBR), Sangju 37242, Republic of Korea 강물에서 분리한 중금속 내성 세균 Cupriavidus sp. SW-Y-13 균주의 유전체 해독 백기운 ・ 남영호 ・ 정유진 ・ 최아영* 국립낙동강생물자원관 담수생물연구본부 (Received July 6, 2020; Revised September 18, 2020; Accepted September 18, 2020) Cupriavidus sp. strain SW-Y-13 is an aerobic, Gram-negative, found to survive in close association with pollution-causing rod-shaped bacterium isolated from river water in South Korea, heavy metals, for example, Cupriavidus metallidurans, which in 2019. Its draft genome was produced using the PacBio RS II successfully grows in the presence of Cu, Hg, Ni, Ag, Cd, Co, platform and is thought to consist of five circular chromosomes Zn, and As (Goris et al., 2001; Vandamme and Coenye, 2004; with a total of 7,307,793 bp. The genome has a G + C content Janssen et al., 2010). Several bacteria found in polluted of 63.1%. Based on 16S rRNA sequence similarity, strain SW-Y-13 is most closely related to Cupriavidus metallidurans environments have been shown to adapt to the presence of toxic (98.4%). Genome annotation revealed that the genome is heavy metals. Identification of novel bacterial mechanisms comprised of 6,613 genes, 6,536 CDSs, 12 rRNAs, 61 tRNAs, facilitating growth in heavy-metal-polluted environments and 4 ncRNAs. -
Cupriavidus Cauae Sp. Nov., Isolated from Blood of an Immunocompromised Patient
TAXONOMIC DESCRIPTION Kweon et al., Int. J. Syst. Evol. Microbiol. 2021;71:004759 DOI 10.1099/ijsem.0.004759 Cupriavidus cauae sp. nov., isolated from blood of an immunocompromised patient Oh Joo Kweon1†, Wenting Ruan2†, Shehzad Abid Khan2, Yong Kwan Lim1, Hye Ryoun Kim1, Che Ok Jeon2,* and Mi- Kyung Lee1,* Abstract A novel Gram- stain- negative, facultative aerobic and rod- shaped bacterium, designated as MKL-01T and isolated from the blood of immunocompromised patient, was genotypically and phenotypically characterized. The colonies were found to be creamy yellow and convex. Phylogenetic analysis based on 16S rRNA gene and whole-genome sequences revealed that strain MKL-01T was most closely related to Cupriavidus gilardii LMG 5886T, present within a large cluster in the genus Cupriavidus. The genome sequence of strain MKL-01T showed the highest average nucleotide identity value of 92.1 % and digital DNA–DNA hybridization value of 44.8 % with the closely related species C. gilardii LMG 5886T. The genome size of the isolate was 5 750 268 bp, with a G+C content of 67.87 mol%. The strain could grow at 10–45 °C (optimum, 37–40 °C), in the presence of 0–10 % (w/v) NaCl (optimum, 0.5%) and at pH 6.0–10.0 (optimum, pH 7.0). Strain MKL-01T was positive for catalase and negative for oxidase. The major fatty acids were C16 : 0, summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c and/or C16 : 1 ω6c/C16 : 1 ω7c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). -
Phosphoglycolate Salvage in a Chemolithoautotroph Using the Calvin Cycle
Phosphoglycolate salvage in a chemolithoautotroph using the Calvin cycle Nico J. Claassensa,1, Giovanni Scarincia,1, Axel Fischera, Avi I. Flamholzb, William Newella, Stefan Frielingsdorfc, Oliver Lenzc, and Arren Bar-Evena,2 aSystems and Synthetic Metabolism Lab, Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; bDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720; and cInstitut für Chemie, Physikalische Chemie, Technische Universität Berlin, 10623 Berlin, Germany Edited by Donald R. Ort, University of Illinois at Urbana–Champaign, Urbana, IL, and approved July 24, 2020 (received for review June 14, 2020) Carbon fixation via the Calvin cycle is constrained by the side In the cyanobacterium Synechocystis sp. PCC6803, gene dele- activity of Rubisco with dioxygen, generating 2-phosphoglycolate. tion studies were used to demonstrate the activity of two pho- The metabolic recycling of phosphoglycolate was extensively torespiratory routes in addition to the C2 cycle (5, 8). In the studied in photoautotrophic organisms, including plants, algae, glycerate pathway, two glyoxylate molecules are condensed to and cyanobacteria, where it is referred to as photorespiration. tartronate semialdehyde, which is subsequently reduced to glyc- While receiving little attention so far, aerobic chemolithoautotro- erate and phosphorylated to 3PG (Fig. 1). Alternatively, in the phic bacteria that operate the Calvin cycle independent of light oxalate decarboxylation pathway, glyoxylate is oxidized