User profiles for Daniel LaFontaine

Daniel Lafontaine

Professor, Biology, Université de Sherbrooke
Verified email at usherbrooke.ca
Cited by 4127

[HTML][HTML] Folding of the adenine riboswitch

…, JC Penedo, R Tremblay, DMJ Lilley, DA Lafontaine - Chemistry & biology, 2006 - cell.com
The pbuE adenine riboswitch undergoes metal ion-dependent folding that involves a loop-loop
interaction. Binding of 2-aminopurine to the aptamer domain strongly correlates with the …

[HTML][HTML] Novel riboswitch ligand analogs as selective inhibitors of guanine-related metabolic pathways

…, M Allard, LC Fortier, F Malouin, DA Lafontaine - PLoS …, 2010 - journals.plos.org
Riboswitches are regulatory elements modulating gene expression in response to specific
metabolite binding. It has been recently reported that riboswitch agonists may exhibit …

Dual-acting riboswitch control of translation initiation and mRNA decay

…, E Massé, DA Lafontaine - Proceedings of the …, 2012 - National Acad Sciences
Riboswitches are mRNA regulatory elements that control gene expression by altering their
structure in response to specific metabolite binding. In bacteria, riboswitches consist of an …

[HTML][HTML] Comparative study between transcriptionally-and translationally-acting adenine riboswitches reveals key differences in riboswitch regulatory mechanisms

…, L Bastet, P St-Pierre, E Massé, DA Lafontaine - PLoS …, 2011 - journals.plos.org
Many bacterial mRNAs are regulated at the transcriptional or translational level by ligand-binding
elements called riboswitches. Although they both bind adenine, the adenine …

Effects of freezing and cryopreservation on the mechanical properties of arteries

…, ED Grassl, VH Barocas, D Lafontaine… - Annals of Biomedical …, 2006 - Springer
Cryoplasty, a freezing therapy, is being used for the treatment of restenosis in peripheral
arteries. In addition, cryo-preserved arteries are increasingly used in vascular grafts. While …

Regulatory RNAs and target mRNA decay in prokaryotes

D Lalaouna, M Simoneau-Roy, D Lafontaine… - … et Biophysica Acta (BBA …, 2013 - Elsevier
Recent advances in prokaryote genetics have highlighted the important and complex roles
of small regulatory RNAs (sRNAs). Although blocking mRNA translation is often the main …

Cyclic di-GMP riboswitch-regulated type IV pili contribute to aggregation of Clostridium difficile

E Bordeleau, EB Purcell, DA Lafontaine… - Journal of …, 2015 - Am Soc Microbiol
Clostridium difficile is an anaerobic Gram-positive bacterium that causes intestinal
infections with symptoms ranging from mild diarrhea to fulminant colitis. Cyclic diguanosine …

Therapeutic applications of ribozymes and riboswitches

J Mulhbacher, P St-Pierre, DA Lafontaine - Current opinion in …, 2010 - Elsevier
Therapeutic approaches employing RNA as a tool or as a drug target have recently emerged
and have been employed for various applications—ranging from cancer treatment to virus …

Molecular insights into the ligand-controlled organization of the SAM-I riboswitch

…, E Ennifar, JC Penedo, DA Lafontaine - Nature chemical …, 2011 - nature.com
S-adenosylmethionine (SAM) riboswitches are widespread in bacteria, and up to five different
SAM riboswitch families have been reported, highlighting the relevance of SAM regulation. …

Ligand recognition determinants of guanine riboswitches

J Mulhbacher, DA Lafontaine - Nucleic acids research, 2007 - academic.oup.com
Guanine riboswitches negatively modulate transcription upon guanine binding. The aptamer
domain is organized around a three-way junction which forms the ligand binding site. Using …