title: Cloning and expression of the inorganic pyrophosphatase gene from the amino acid producer Brevibacterium lactofermentum ATCC 13869.
abstract: 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.
authors.affiliation: Area de Microbiología, Departamento de Ecología, Genética y Microbiología, Facultad de Biología, Universidad de León, 24071 León, Spain.
authors.forename: Angelina
authors.initials: A
authors.lastname: Ramos
authors.forename: Sirin A I
authors.initials: SA
authors.lastname: Adham
authors.forename: José A
authors.initials: JA
authors.lastname: Gil
mesh_terms: D001483:Base Sequence; D001951:Brevibacterium / Q000201:enzymology* / Q000235:genetics*; D003001:Cloning, Molecular; D003352:Corynebacterium / Q000201:enzymology / Q000235:genetics; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D015870:Gene Expression; D005798:Genes, Bacterial; D005816:Genetic Complementation Test; D049452:Green Fluorescent Proteins; D043564:Inorganic Pyrophosphatase / Q000235:genetics* / Q000378:metabolism; D008164:Luminescent Proteins / Q000235:genetics / Q000378:metabolism; D010957:Plasmids / Q000235:genetics; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D013347:Subcellular Fractions / Q000201:enzymology
chemical_list: D008164:Luminescent Proteins; D011993:Recombinant Fusion Proteins; D049452:Green Fluorescent Proteins; D043564:Inorganic Pyrophosphatase