Cited by 41Microbial Metabolic Engineering and BioproductionGene Regulatory Network AnalysisBioinformatics and Genomic Networks

Investigating Moorella thermoacetica metabolism with a genome-scale constraint-based metabolic model

Open access
Islam, M. Ahsanul, Zengler, Karsten, Edwards, Elizabeth A., Mahadevan, Radhakrishnan, Stephanopoulos, Gregory·2015·Integrative Biology

Abstract

Moorella thermoacetica is a strictly anaerobic, endospore-forming, and metabolically versatile acetogenic bacterium capable of conserving energy by both autotrophic (acetogenesis) and heterotrophic (homoacetogenesis) modes of metabolism. Its metabolic diversity and the ability to efficiently convert a wide range of compounds, including syngas (CO + H2) into acetyl-CoA have made this thermophilic bacterium a promising host for industrial biotechnology applications. However, lack of detailed information on M. thermoacetica's metabolism is a major impediment to its use as a microbial cell factory. In order to overcome this issue, a genome-scale constraint-based metabolic model of Moorella thermoacetica, iAI558, has been developed using its genome sequence and physiological data from published literature. The reconstructed metabolic network of M. thermoacetica comprises 558 metabolic genes, 705 biochemical reactions, and 698 metabolites. Of the total 705 model reactions, 680 are gene-associated while the rest are non-gene associated reactions. The model, in addition to simulating both autotrophic and heterotrophic growth of M. thermoacetica, revealed degeneracy in its TCA-cycle, a common characteristic of anaerobic metabolism. Furthermore, the model helped elucidate the poorly understood energy conservation mechanism of M. thermoacetica during autotrophy. Thus, in addition to generating experimentally testable hypotheses regarding its physiology, such a detailed model will facilitate rapid strain designing and metabolic engineering of M. thermoacetica for industrial applications.

Integrity signals

Registry

Crossref · 10.1039/c5ib00095e

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

1 of the 58 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Islam, M. A., Zengler, K., Edwards, E. A., Mahadevan, R., & Stephanopoulos, G.
Affiliations
  • Massachusetts Institute of Technology (US)
  • University of California San Diego (US)
  • University of Toronto (CA)
Corresponding author
  • Mahadevan, Radhakrishnan
  • Stephanopoulos, Gregory
Venue
Integrative Biology
Published
2015
Volume
7
Issue
8
Pages
869-882
ISSN
  • 1757-9694 (ISSN-L)
  • 1757-9708
OpenAlex
W1920412431
Cited by
41
References
58
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 4 · 2022: 4 · 2021: 3 · 2020: 2 · 2019: 6 · 2018: 2 · 2017: 9 · 2016: 4 · 2015: 1
FWCI
2.31
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Integrative Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Loughborough University Institutional Repository (Loughborough University) (submittedVersion, cc-by-nc-nd)
Funders
  • U.S. Department of Energy
  • University of California, San Diego
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
Moorella thermoacetica, genome-scale metabolic models, acetogenesis, homoacetogenesis, syngas conversion, acetyl-CoA biosynthesis, anaerobic metabolism, metabolic network reconstruction, metabolic engineering, industrial biotechnology
MeSH terms
Bacterial Proteins, Computer Simulation, Models, Biological, Signal Transduction, Genome, Bacterial, Proteome, Metabolic Networks and Pathways, Metabolome, Moorella

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review