Archives of Microbiology

, Volume 156, Issue 6, pp 477–483 | Cite as

The methane monooxygenase gene cluster of Methylosinus trichosporium: cloning and sequencing of the mmoC gene

  • D. L. N. Cardy
  • V. Laidler
  • G. P. C. Salmond
  • J. C. Murrell
Original Papers


Methane monooxygenase (MMO) is the enzyme responsible for the conversion of methane to methanol in methanotrophic bacteria. The soluble MMO enzyme complex from Methylosinus trichosporium also oxidizes a wide range of aliphatic and aromatic compounds in a number of potentially useful biotransformations. In this study we have used heterologous DNA probes from the type X methanotroph Methylococcus capsulatus (Bath) to isolate mmo genes from the type II methanotroph M. trichosporium. We report here that the gene encoding the reductase component, Protein C of MMO, lies adjacent to the genes encoding the other components of soluble MMO in M. trichosporium but is separated by an open reading frame of unknown function, orfY. The complete nucleotide sequence of these genes is presented. Sequence analysis of mmoC indicates that the N-terminus of Protein C has significant homology with 2Fe2S ferredoxins from a wide range of organisms.

Key words

Methane oxidation Methanotroph Methane monooxygenase Methylosinus trichosporium Iron-sulphur flavoprotein 



methane monooxygenase


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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • D. L. N. Cardy
    • 1
  • V. Laidler
    • 1
  • G. P. C. Salmond
    • 1
  • J. C. Murrell
    • 1
  1. 1.Department of Biological SciencesUniversity of WarwickCoventryUK

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