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Cited by 145Metalloenzymes and iron-sulfur proteinsMicrobial metabolism and enzyme functionAnaerobic Digestion and Biogas Production

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Isolation of carbon monoxide dehydrogenase from Acetobacterium woodii and comparison of its properties with those of the Clostridium thermoaceticum enzyme

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Ragsdale, S W, Ljungdahl, L G, DerVartanian, D V·1983·Journal of Bacteriology
DOI 10.1128/jb.155.3.1224-1237.1983PMC PMC217820
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Abstract

An oxygen-labile carbon monoxide dehydrogenase was purified to at least 98% homogeneity from fructose-grown cells of Acetobacterium woodii. Gel filtration and electrophoresis experiments gave molecular weights of 480,000 and 153,000, respectively, of the active enzyme. The molecular weights for the subunits are 80,000 and 68,000; the subunits occur in equal proportion. The small subunit of the A. woodii enzyme differs in size from that of the Clostridium thermoaceticum enzyme; however, the large subunits are similar. The specific activity of the A. woodii enzyme, measured at 30 degrees C and pH 7.6, is 500 mumol of CO oxidized min-1 mg-1 with 20 mM methyl viologen as the electron acceptor. Analysis revealed (number per dimer) iron (9), acid-labile sulfide (12), nickel (1.4), and magnesium or zinc (1). This metal content is quite similar to that of the C. thermoaceticum enzyme (Ragsdale et al., J. Biol. Chem. 258:2364-2369, 1983). The nickel as well as the iron-sulfur clusters are redox-active, as was found for the C. thermoaceticum enzyme (Ragsdale et al., Biochem. Biophys. Res. Commun. 108:658-663, 1982). CO can reduce and CO2 can oxidize the iron-sulfur clusters. The enzyme is inhibited by cyanide, but CO2 in the presence of reduced methyl viologen or CO alone can reverse or prevent this inhibition. Several ferredoxins, flavodoxin, and rubredoxin and some artificial electron carriers were tested for their relative rates of reaction with the CO dehydrogenases from A. woodii, C. thermoaceticum, and Clostridium formicoaceticum. Rubredoxin was by far the most reactive acceptor and is proposed to be the primary natural electron carrier for the acetogenic CO dehydrogenases.

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Crossref · 10.1128/jb.155.3.1224-1237.1983

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Research works printed but not linked: 1

  1. Ljungdahl L. G. and H. G. Wood. 1982. Acetate biosynthesis p. 166-202. In D. Dolphin (ed.) B12 vol. 2. John Wiley & Sons Inc. New York.

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Metadata

Authors
Ragsdale, S. W., Ljungdahl, L. G., & DerVartanian, D. V.
Affiliations
University of Georgia (US)
ORCID
Ragsdale, S W
Venue
Journal of Bacteriology
Publisher
American Society for Microbiology
Published
1983-09
Volume
155
Issue
3
Pages
1224-1237
ISSN
  • 0021-9193 (ISSN-L)
  • 1098-5530
DOI
10.1128/jb.155.3.1224-1237.1983
PMC
PMC217820
OpenAlex
W1766118319
Cited by
145
References
49
Citations by year
2026: 3 · 2025: 1 · 2024: 5 · 2023: 2 · 2022: 4 · 2021: 2 · 2020: 8 · 2018: 2 · 2017: 4 · 2016: 1 · 2015: 4 · 2014: 5 · 2013: 3 · 2012: 1
FWCI
17.03
Type
journal article
Language
en
Open access
Licence
journals.asm.org/non-commercial-tdm-license (tdm)
Locations
  • Journal of Bacteriology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Metalloenzymes and iron-sulfur proteins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
Keywords
carbon monoxide dehydrogenase, Acetobacterium woodii, Clostridium thermoaceticum, enzyme purification, enzyme subunit structure, metal content, iron-sulfur clusters, cyanide inhibition, electron carriers, rubredoxin, acetogenic bacteria, paraquat
MeSH terms
Aldehyde Oxidoreductases, Clostridium, Electron Spin Resonance Spectroscopy, Ferredoxins, Formates, Gram-Positive Bacteria, Kinetics, Metals, Molecular Weight, Multienzyme Complexes, Oxidation-Reduction, Potassium Cyanide, Rubredoxins, Spectrum Analysis

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