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Comparative analysis of the exopolysaccharide biosynthesis gene clusters from four strains of Lactobacillus rhamnosus.
- B. Péant, G. Lapointe, C. Gilbert, D. Atlan, P. Ward, D. Roy
- Biology, Medicine
- 1 June 2005
The exopolysaccharide (EPS) biosynthesis gene clusters of four Lactobacillus rhamnosus strains consist of chromosomal DNA regions of 18.5 kb encoding 17 ORFs that are highly similar among the… Expand
Two cell-wall-associated aminopeptidases from Lactobacillus helveticus and the purification and characterization of APII from strain ITGL1.
- B. Blanc, P. Laloi, D. Atlan, C. Gilbert, R. Portalier
- Chemistry, Medicine
- Journal of general microbiology
- 1 July 1993
Lactobacillus helveticus ITGL1 is able to hydrolyse many amino-acyl and dipeptidyl-p-nitroanilides. Analysis of heat inactivation kinetics, metal ion and protease inhibitor effects, and the… Expand
Proline iminopeptidase from Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397: purification and characterization.
Proline iminopeptidase (PepIP) is a major peptidase in Lactobacillus delbrueckii subsp. bularicus CNRZ397, encoded by the pepIP gene. Amplification and expression of this gene in Escherichia coli K12… Expand
Original features of cell-envelope proteinases of Lactobacillus helveticus. A review.
- L. Sadat-Mekmene, M. Genay, D. Atlan, S. Lortal, V. Gagnaire
- Medicine, Biology
- International journal of food microbiology
- 15 March 2011
Lactobacillus helveticus is a lactic acid bacterium very used in fermented milks and cheese. The rapid growth of L. helveticus in milk is supported by an efficient cell envelope proteinase (CEP)… Expand
A new cell surface proteinase: sequencing and analysis of the prtB gene from Lactobacillus delbruekii subsp. bulgaricus.
Investigation of the chromosomal region downstream of the lacZ gene from Lactobacillus delbrueckii subsp. bulgaricus revealed the presence of a gene (prtB) encoding a proteinase of 1,946 residues… Expand
Photocatalysis and disinfection of water: Identification of potential bacterial targets
- S. Pigeot-Rémy, F. Simonet, E. Errazuriz-Cerda, J. C. Lazzaroni, D. Atlan, C. Guillard
- 18 May 2011
Abstract In order to identify some of the potential bacterial targets, the effects of TiO2 nanoparticles on bacteria in aqueous suspension were assessed in the dark and under UV-A (λ > 340 nm)… Expand
Comparison of cell surface proteinase activities within the Lactobacillus genus
Whole cells of Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397 ( Lb. bulgaricus CNRZ 397) are able to hydrolyse α- and β-caseins. We have isolated a mutant of Lb. bulgaricus altered for growth… Expand
A multifunction ABC transporter (Opt) contributes to diversity of peptide uptake specificity within the genus Lactococcus.
- M. Lamarque, P. Charbonnel, D. Aubel, J. Piard, D. Atlan, V. Juillard
- Medicine, Biology
- Journal of bacteriology
- 1 October 2004
Growth of Lactococcus lactis in milk depends on the utilization of extracellular peptides. Up to now, oligopeptide uptake was thought to be due only to the ABC transporter Opp. Nevertheless, analysis… Expand
Cloning, sequencing and characterization of the pepIP gene encoding a proline iminopeptidase from Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397.
The proline iminopeptidase (PepIP) of Lactobacillus delbrueckii subsp. bulgaricus is a major peptidase located in the cell envelope. Its structural gene (pepIP) has been cloned into pUC18 and… Expand
Characterization and site-directed mutagenesis of Wzb, an O-phosphatase from Lactobacillus rhamnosus
BackgroundReversible phosphorylation events within a polymerisation complex have been proposed to modulate capsular polysaccharide synthesis in Streptococcus pneumoniae. Similar phosphatase and… Expand