Cloning, nucleotide sequence, and transcriptional analysis of the Pediococcus acidilactici L-(+)-lactate dehydrogenase gene.

Garmyn, D.;Ferain, T.;Bernard, N.;Hols, Pascal;Delcour, Jean
(1995) Applied and Environmental Microbiology — Vol. 61, n° 1, p. 266-272 (1995)

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Authors
  • Garmyn, D.
    Author
  • Ferain, T.
    Author
  • Bernard, N.
    Author
  • Hols, Pascalorcid-logoUCLouvain
    Author
  • Delcour, JeanUCLouvain
    Author
Abstract
Recombinant plasmids containing the Pediococcus acidilactici L-(+)-lactate dehydrogenase gene (ldhL) were isolated by complementing for growth under anaerobiosis of an Escherichia coli lactate dehydrogenase-pyruvate formate lyase double mutant. The nucleotide sequence of the ldhL gene predicted a protein of 323 amino acids showing significant similarity with other bacterial L-(+)-lactate dehydrogenases and especially with that of Lactobacillus plantarum. The ldhL transcription start points in P. acidilactici were defined by primer extension, and the promoter sequence was identified as TCAAT-(17 bp)-TATAAT. This sequence is closely related to the consensus sequence of vegetative promoters from gram-positive bacteria as well as from E. coli. Northern analysis of P. acidilactici RNA showed a 1.1-kb ldhL transcript whose abundance is growth rate regulated. These data, together with the presence of a putative rho-independent transcriptional terminator, suggest that ldhL is expressed as a monocistronic transcript in P. acidilactici.
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Garmyn, D., Ferain, T., Bernard, N., Hols, P., & Delcour, J. (1995). Cloning, nucleotide sequence, and transcriptional analysis of the Pediococcus acidilactici L-(+)-lactate dehydrogenase gene. Applied and Environmental Microbiology, 61(1), 266-272. https://hdl.handle.net/2078.5/134945 (Original work published 1995)