Cloning and expression of the inorganic pyrophosphatase gene from the amino acid producer Brevibacterium lactofermentum ATCC 13869

Angelina Ramos, Sirin A I Adham, José A. Gil

Research output: Contribution to journalArticle

8 Citations (Scopus)


A 20-kDa Brevibacterium lactofermentum protein was detected when purifying the His-tagged FtsZBL. The protein was identified by matrix-assisted laser desorption/ionisation time of flight as the inorganic pyrophosphatase encoded by the ppa gene, which is present as a single copy in the genome of Corynebacterium glutamicum. The ppa gene was cloned from B. lactofermentum chromosomal DNA by polymerase chain reaction; it seemed to be an essential gene and it might represent an attractive target for drug discovery. The cloned ppa gene complemented a ppa- Escherichia coli mutant and a ppa-gfp gene fusion revealed that the gene product mainly accumulated at the cell poles in both E. coli and B. lactofermentum.

Original languageEnglish
Pages (from-to)85-92
Number of pages8
JournalFEMS Microbiology Letters
Issue number1
Publication statusPublished - Aug 8 2003



  • Cell division
  • Corynebacterium
  • DivIVA
  • FtsZ
  • Green fluorescence protein
  • Inorganic pyrophosphatase

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Applied Microbiology and Biotechnology
  • Microbiology

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