Research Topics
Genomes and Genes | Olivier NamySummaryAffiliation: University of Cambridge Country: UK Publications
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Publications
Identification of stop codon readthrough genes in Saccharomyces cerevisiaeOlivier Namy
Laboratoire de Génétique Moléculaire de la Traduction, Institut de Genetique et Microbiologie, Universite Paris Sud, 91405 Orsay Cedex, France
Nucleic Acids Res 31:2289-96. 2003..This emphasizes that genome annotation should take into account the fact that recoding signals could be more frequently used than previously expected...
Reprogrammed genetic decoding in cellular gene expressionOlivier Namy
Division of Virology, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, United Kingdom
Mol Cell 13:157-68. 2004..This review summarizes current knowledge of the structure and function of recoding signals in cellular genes, the biological importance of recoding in gene regulation, and ways to identify new recoded genes...
Fine-tuning of translation termination efficiency in Saccharomyces cerevisiae involves two factors in close proximity to the exit tunnel of the ribosomeIsabelle Hatin
IGM, Universite Paris Sud, UMR 8621, F91405 Orsay, France
Genetics 177:1527-37. 2007..Among them, SSB1 and snR18, two factors close to the exit tunnel of the ribosome, directed the strongest antisuppression effects when overexpressed, showing that they may be involved in fine-tuning of the translation termination level...
Adding pyrrolysine to the Escherichia coli genetic codeOlivier Namy
Institut de Genetique et Microbiologie, Universite Paris Sud, CNRS UMR8621, Orsay F 91405, France
FEBS Lett 581:5282-8. 2007..Exogenously supplying our reporter system with d-ornithine significantly increases suppression efficiency, indicating that d-ornithine is a direct precursor to Pyl...
A mechanical explanation of RNA pseudoknot function in programmed ribosomal frameshiftingOlivier Namy
Division of Virology, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
Nature 441:244-7. 2006..Together, the structural changes provide a mechanical explanation of how the pseudoknot manipulates the ribosome into a different reading frame...
Translational errors: from yeast to new therapeutic targetsLaure Bidou
Universite Paris Sud, IGM CNRS UMR 8621, Orsay, France
FEMS Yeast Res 10:1070-82. 2010..We explore these two aspects of the contribution of yeast studies to human medicine in this review...
Gene overexpression as a tool for identifying new trans-acting factors involved in translation termination in Saccharomyces cerevisiaeOlivier Namy
, , CNRS UMR8621, , 91405 Orsay Cedex, France
Genetics 161:585-94. 2002..Interestingly, among these candidates, we identified two genes, SSO1 and STU2, involved in protein transport and spindle pole body formation, respectively, suggesting puzzling connections with the translation termination process...
Prokaryotic-style frameshifting in a plant translation system: conservation of an unusual single-tRNA slippage eventSawsan Napthine
Division of Virology, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
EMBO J 22:3941-50. 2003..We also show for the first time that prokaryotic tRNA(Asn) is not inherently 'unslippery' and induces efficient frameshifting when in the context of a eukaryotic translation system...
Sense from nonsense: therapies for premature stop codon diseasesLaure Bidou
Universite Paris Sud, Orsay, France
Trends Mol Med 18:679-88. 2012..Here, we review the molecular basis for PTC readthrough in eukaryotes and describe currently available compounds with significant therapeutic potential for treating genetic disorders and cancer...
Are prions part of the dark matter of the cell?Agnes Baudin-Baillieu
Institut de Genetique et Microbiologie, University Paris Sud, CNRS, Orsay, France
Prion 5:299-304. 2011..The [PSI+] prion might generate diverse modifications not only at the translational, but also at the transcriptional levels, and the phenotypic heterogeneity is the result of these complex combinations of the genotypic expression...
Translational readthrough of the PDE2 stop codon modulates cAMP levels in Saccharomyces cerevisiaeOlivier Namy
, , , Orsay, France
Mol Microbiol 43:641-52. 2002..These results provide a molecular explanation for at least some of the secondary phenotypes associated with suppressor backgrounds...
The mechanics of translocation: a molecular "spring-and-ratchet" systemStephen J Moran
Division of Structural Biology, Henry Wellcome Building for Genomic Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, United Kingdom
Structure 16:664-72. 2008..The tRNA can thus be considered a molecular spring and EF-2 a Brownian ratchet in a "spring-and-ratchet" system within the translocation process...
Lack of pseudouridine 38/39 in the anticodon arm of yeast cytoplasmic tRNA decreases in vivo recoding efficiencyFrançois Lecointe
Laboratoire d Enzymologie et de Biochimie Structurales, CNRS, Avenue de la Terrasse, Bat 34, F 91198 Gif sur Yvette, France
J Biol Chem 277:30445-53. 2002..Therefore, the presence of pseudouridine 38 or 39 in the tRNA anticodon arm enhances misreading of certain codons by natural nonsense tRNAs as well as promotes frameshifting on slippery sequences in yeast...
