DNA sequence of the cut A, B and C genes, encoding the molybdenum containing hydroxylase carbon monoxide dehydrogenase, from Pseudomonas thermocarboxydovorans strain C2

Danita M. Pearson, Catherine O'Reilly, John Colby, Gary W. Black

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26 Citations (Scopus)

Abstract

Pseudomonas thermocarboxydovorans strain C2 is capable of using carbon monoxide as the sole source of carbon and energy. The key enzyme for CO utilisation is the molybdenum containing iron-flavoprotein carbon monoxide dehydrogenase (CODH). This paper reports the DNA sequencing of a 4.7 kb region of the C2 genome which appears to encode the CODH enzyme. The genes for the three subunits of CODH, which we have named cut A, B and C, have been identified and they appear to form an operon. The predicted protein sequences of the three subunits have homology to the structurally related protein, xanthine dehydrogenase, from Drosophila melanogaster. By comparison with xanthine dehydogenase it can be predicted that the molybdenum cofactor binds to the large subunit of CODH, the small subunit of CODH contains the iron-sulphur centers and the medium subunit binds FAD/NAD +.

Original languageEnglish
Pages (from-to)432-438
Number of pages7
JournalBBA - Bioenergetics
Volume1188
Issue number3
DOIs
Publication statusPublished - 30 Dec 1994
Externally publishedYes

Keywords

  • (P. thermocarboxydovorans)
  • Carbon monoxide
  • DNA sequence
  • Molybdenum

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