Pombert, Jean-François, Sistek, Viridiana, Boissinot, Maurice, Frenette, Michel
Abstract Background Streptococci are divided into six phylogenetic groups, i.e , anginosus, bovis, mitis, mutans, pyogenic, and salivarius, with the salivarius group consisting of only three distinct...
Plamondon, Pascale, Brochu, Denis, Thomas, Suzanne, Fradette, Julie, Gauthier, Lucie, Vaillancourt, Katy, ...
In gram-positive bacteria, the HPr protein of the phosphoenolpyruvate:sugar phosphotransferase system (PTS) can be phosphorylated on a histidine residue at position 15 (His15) by enzyme I (EI) of the...
Lévesque, Céline, Vadeboncoeur, Christian, Chandad, Fatiha, Frenette, Michel
Streptococcus salivarius, a gram-positive bacterium found in the human oral cavity, expresses flexible peritrichous fimbriae. In this paper, we report purification and partial characterization of S....
Buckley, Nicole D., Vadeboncoeur, Christian, LeBlanc, Donald J., Lee, Linda N., Frenette, Michel
Despite the large number of techniques available for transformation of bacteria, certain species and strains are still resistant to introduction of foreign DNA. Some oral streptococci are among the...
Vaillancourt, Katy, Moineau, Sylvain, Frenette, Michel, Lessard, Christian, Vadeboncoeur, Christian
Streptococcus salivarius is a lactose- and galactose-positive bacterium that is phylogenetically closely related to Streptococcus thermophilus, a bacterium that metabolizes lactose but not galactose....
Cochu, Armelle, Vadeboncoeur, Christian, Moineau, Sylvain, Frenette, Michel
In most streptococci, glucose is transported by the phosphoenolpyruvate (PEP):glucose/mannose phosphotransferase system (PTS) via HPr and IIABMan, two proteins involved in regulatory mechanisms....
Lessard, Christian, Cochu, Armelle, Lemay, Jean-Dominique, Roy, Denis, Vaillancourt, Katy, Frenette, Michel, ...
The oral bacterium Streptococcus salivarius takes up lactose via a transporter called LacS that shares 95% identity with the LacS from Streptococcus thermophilus, a phylogenetically closely related...
Characterization of a Galactokinase-Positive Recombinant Strain of Streptococcus thermophilus
Vaillancourt, Katy, LeMay, Jean-Dominique, Lamoureux, Maryse, Frenette, Michel, Moineau, Sylvain, Vadeboncoeur, Christian
The lactic acid bacterium Streptococcus thermophilus is widely used by the dairy industry for its ability to transform lactose, the primary sugar found in milk, into lactic acid. Unlike the...
Cochu, Armelle, Roy, Denis, Vaillancourt, Katy, LeMay, Jean-Dominique, Casabon, Israël, Frenette, Michel, ...
In Streptococcus thermophilus, lactose is taken up by LacS, a transporter that comprises a membrane translocator domain and a hydrophilic regulatory domain homologous to the IIA proteins and protein...
Characterization of the cro-ori Region of the Streptococcus thermophilus Virulent Bacteriophage DT1
Lamothe, Geneviève, Lévesque, Céline, Bissonnette, Frédéric, Cochu, Armelle, Vadeboncoeur, Christian, Frenette, Michel, ...
The virulent cos-type Streptococcus thermophilus phage DT1 was previously isolated from a mozzarella whey sample, and its complete genomic sequence is available. The putative ori of phage DT1 is...
Plamondon, Pascale, Brochu, Denis, Thomas, Suzanne, Fradette, Julie, Gauthier, Lucie, Vaillancourt, Katy, ...
In gram-positive bacteria, the HPr protein of the phosphoenolpyruvate:sugar phosphotransferase system (PTS) can be phosphorylated on a histidine residue at position 15 (His15) by enzyme I (EI) of the...
Lévesque, Céline, Vadeboncoeur, Christian, Chandad, Fatiha, Frenette, Michel
Streptococcus salivarius, a gram-positive bacterium found in the human oral cavity, expresses flexible peritrichous fimbriae. In this paper, we report purification and partial characterization of S....
Buckley, Nicole D., Vadeboncoeur, Christian, LeBlanc, Donald J., Lee, Linda N., Frenette, Michel
Despite the large number of techniques available for transformation of bacteria, certain species and strains are still resistant to introduction of foreign DNA. Some oral streptococci are among the...
Vaillancourt, Katy, Moineau, Sylvain, Frenette, Michel, Lessard, Christian, Vadeboncoeur, Christian
Streptococcus salivarius is a lactose- and galactose-positive bacterium that is phylogenetically closely related to Streptococcus thermophilus, a bacterium that metabolizes lactose but not galactose....
Cochu, Armelle, Vadeboncoeur, Christian, Moineau, Sylvain, Frenette, Michel
In most streptococci, glucose is transported by the phosphoenolpyruvate (PEP):glucose/mannose phosphotransferase system (PTS) via HPr and IIABMan, two proteins involved in regulatory mechanisms....
Lessard, Christian, Cochu, Armelle, Lemay, Jean-Dominique, Roy, Denis, Vaillancourt, Katy, Frenette, Michel, ...
The oral bacterium Streptococcus salivarius takes up lactose via a transporter called LacS that shares 95% identity with the LacS from Streptococcus thermophilus, a phylogenetically closely related...
Characterization of a Galactokinase-Positive Recombinant Strain of Streptococcus thermophilus
Vaillancourt, Katy, LeMay, Jean-Dominique, Lamoureux, Maryse, Frenette, Michel, Moineau, Sylvain, Vadeboncoeur, Christian
The lactic acid bacterium Streptococcus thermophilus is widely used by the dairy industry for its ability to transform lactose, the primary sugar found in milk, into lactic acid. Unlike the...
Cochu, Armelle, Roy, Denis, Vaillancourt, Katy, LeMay, Jean-Dominique, Casabon, Israël, Frenette, Michel, ...
In Streptococcus thermophilus, lactose is taken up by LacS, a transporter that comprises a membrane translocator domain and a hydrophilic regulatory domain homologous to the IIA proteins and protein...
Characterization of the cro-ori Region of the Streptococcus thermophilus Virulent Bacteriophage DT1
Lamothe, Geneviève, Lévesque, Céline, Bissonnette, Frédéric, Cochu, Armelle, Vadeboncoeur, Christian, Frenette, Michel, ...
The virulent cos-type Streptococcus thermophilus phage DT1 was previously isolated from a mozzarella whey sample, and its complete genomic sequence is available. The putative ori of phage DT1 is...
Role of galK and galM in Galactose Metabolism by Streptococcus thermophilus▿
Vaillancourt, Katy, Bédard, Nathalie, Bart, Christian, Tessier, Mélanie, Robitaille, Gilles, Turgeon, Nathalie, ...
Streptococcus thermophilus is unable to metabolize the galactose moiety of lactose. In this paper, we show that a transformant of S. thermophilus SMQ-301 expressing Streptococcus salivarius galK and...