Isolation, sequencing, and mutagenesis of the gene encoding NAD- and glutathione-dependent formaldehyde dehydrogenase (GD-FALDH) from Paracoccus denitrificans, in which GD-FALDH is essential for methylotrophic growth

N.J.P. van Ras, P W Van Ophem, W N Reijnders, R J Van Spanning, J A Duine, A.H. Stouthamer, N Harms

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

NAD- and glutathione-dependent formaldehyde dehydrogenase (GD-FALDH) of Paracoccus denitrificans has been purified as a tetramer with a relative molecular mass of 150 kDa. The gene encoding GD-FALDH (flhA) has been isolated, sequenced, and mutated by insertion of a kanamycin resistance gene. The mutant strain is not able to grow on methanol, methylamine, or choline, while heterotrophic growth is not influenced by the mutation. This finding indicates that GD-FALDH of P. denitrificans is essential for the oxidation of formaldehyde produced during methylotrophic growth.

Original languageEnglish
Pages (from-to)247-51
Number of pages5
JournalJournal of Bacteriology
Volume177
Issue number1
Publication statusPublished - Jan 1995

Keywords

  • Aldehyde Oxidoreductases
  • Amino Acid Sequence
  • Base Sequence
  • Cloning, Molecular
  • Formaldehyde
  • Genes, Bacterial
  • Methanol
  • Molecular Sequence Data
  • Mutagenesis
  • Paracoccus denitrificans
  • Sequence Analysis, DNA
  • Sequence Homology, Amino Acid
  • Comparative Study
  • Journal Article

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