Christiane Branlant

Small-Molecule Inhibition of HIV pre-mRNA Splicing as a Novel Antiretroviral Therapy to Overcome Drug Resistance (2007)

Nadia Bakkour, Yea-Lih Lin, Sophie Maire, Lilia Ayadi, Florence Mahuteau-Betzer, Chi Hung Nguyen, ...

The development of multidrug-resistant viruses compromises antiretroviral therapy efficacy and limits therapeutic options. Therefore, it is an ongoing task to identify new targets for antiretroviral...

Recherche des gènes d'ARN non codant (2006)

Gothié, Emmanuel, Guermeur, Yann, Muller, Sébastien, Branlant, Christiane, Bockmayr, Alexander

La masse considérable de données brutes extraite des programmes de séquençage nécessite de nouvelles techniques d'analyse. La première étape visant à annoter les séquences génomiques est la...

A Multi-Site Constraint Programming Model of Alternative Splicing Regulation (2006)

Eveillard, Damien, Ropers, Delphine, De Jong, Hidde, Branlant, Christiane, Bockmayr, Alexander

Alternative splicing is a key process in post-transcriptional regulation, by which several kinds of mature RNA can be obtained from the same premessenger RNA. The resulting combinatorial complexity...

A Multi-Site Constraint Programming Model of Alternative Splicing Regulation (2006)

Eveillard, Damien, Ropers, Delphine, De Jong, Hidde, Branlant, Christiane, Bockmayr, Alexander

Alternative splicing is a key process in post-transcriptional regulation, by which several kinds of mature RNA can be obtained from the same premessenger RNA. The resulting combinatorial complexity...

Recherche des gènes d'ARN non codant (2006)

Gothié, Emmanuel, Guermeur, Yann, Muller, Sébastien, Branlant, Christiane, Bockmayr, Alexander

La masse considérable de données brutes extraite des programmes de séquençage nécessite de nouvelles techniques d'analyse. La première étape visant à annoter les séquences génomiques est la...

A multi-scale constraint programming model of alternative splicing regulation (2004)

Eveillard, Damien, Ropers, Delphine, De Jong, Hidde, Branlant, Christiane, Bockmayr, Alexander

Alternative splicing is a key process in post-transcriptional regulation, by which different mature RNA can be obtained from the same premessenger RNA. The resulting combinatorial complexity...

A multi-scale constraint programming model of alternative splicing regulation (2004)

Eveillard, Damien, Ropers, Delphine, De Jong, Hidde, Branlant, Christiane, Bockmayr, Alexander

Alternative splicing is a key process in post-transcriptional regulation, by which different mature RNA can be obtained from the same premessenger RNA. The resulting combinatorial complexity...

Recherche des gènes d'ARN non codant (2003)

Gothié, Emmanuel, Guermeur, Yann, Muller, Sébastien, Branlant, Christiane, Bockmayr, Alexander

La masse considérable de données brutes extraite des programmes de séquençage nécessite de nouvelles techniques d'analyse. La première étape visant à annoter les séquences génomiques est la...

A Multi-Site Constraint Programming Model of Alternative Splicing Regulation (2003)

Eveillard, Damien, Ropers, Delphine, De Jong, Hidde, Branlant, Christiane, Bockmayr, Alexander

Alternative splicing is a key process in post-transcriptional regulation, by which several kinds of mature RNA can be obtained from the same premessenger RNA. The resulting combinatorial complexity...

Multiscale Modeling of Alternative Splicing (2002)

Damien Eveillard, Christiane Branlant

Alternative splicing is a key process in post-transcriptional regulation, by which several kinds of mature RNA can be obtained from the same premessenger RNA. Using a constraint programming approach,...

Conserved stem–loop structures in the HIV-1 RNA region containing the A3 3′ splice site and its cis-regulatory element: possible involvement in RNA splicing

Jacquenet, Sandrine, Ropers, Delphine, Bilodeau, Patricia S., Damier, Laurence, Mougin, Annie, Stoltzfus, C. Martin, ...

The HIV-1 transcript is alternatively spliced to over 30 different mRNAs. Whether RNA secondary structure can influence HIV-1 RNA alternative splicing has not previously been examined. Here we have...

Pseudouridine Mapping in the Saccharomyces cerevisiae Spliceosomal U Small Nuclear RNAs (snRNAs) Reveals that Pseudouridine Synthase Pus1p Exhibits a Dual Substrate Specificity for U2 snRNA and tRNA

Massenet, Séverine, Motorin, Yuri, Lafontaine, Denis L. J., Hurt, Eduard C., Grosjean, Henri, Branlant, Christiane

Pseudouridine (Ψ) residues were localized in the Saccharomyces cerevisiae spliceosomal U small nuclear RNAs (UsnRNAs) by using the chemical mapping method. In contrast to vertebrate UsnRNAs, S....

Conserved Loop I of U5 Small Nuclear RNA Is Dispensable for Both Catalytic Steps of Pre-mRNA Splicing in HeLa Nuclear Extracts

Ségault, Véronique, Will, Cindy L., Polycarpou-Schwarz, Maria, Mattaj, Iain W., Branlant, Christiane, Lührmann, Reinhard

The function of conserved regions of the metazoan U5 snRNA was investigated by reconstituting U5 small nuclear ribonucleoprotein particles (snRNPs) from purified snRNP proteins and HeLa or Xenopus U5...

RNomics in Archaea reveals a further link between splicing of archaeal introns and rRNA processing

Tang, Thean Hock, Rozhdestvensky, Timofey S., D’Orval, Béatrice Clouet, Bortolin, Marie-Line, Huber, Harald, Charpentier, Bruno, ...

The bulge–helix–bulge (BHB) motif recognised by the archaeal splicing endonuclease is also found in the long processing stems of archaeal rRNA precursors in which it is cleaved to generate...

Location of Ribosomal Protein Binding Sites on 16S Ribosomal RNA

Zimmermann, Robert A., Muto, Akira, Fellner, Peter, Ehresmann, Chantal, Branlant, Christiane

The distribution of ribosomal protein binding sites on the 16S ribosomal RNA molecule has been analyzed by limited ribonuclease hydrolysis of RNA-protein complexes, as well as by the interaction of...

The strong efficiency of the Escherichia coli gapA P1 promoter depends on a complex combination of functional determinants

Thouvenot, Benoit, Charpentier, Bruno, Branlant, Christiane

The Escherichia coli multi-promoter region of the gapA gene ensures a high level of GAPDH (glyceraldehyde-3-phosphate dehydrogenase) production under various growth conditions. In the exponential...

Reconstitution of archaeal H/ACA small ribonucleoprotein complexes active in pseudouridylation

Charpentier, Bruno, Muller, Sébastien, Branlant, Christiane

Pseudouridine (Ψ) are frequently modified residues in RNA. In Eukarya, their formation is catalyzed by enzymes or by ribonucleoprotein complexes (RNPs) containing H/ACA snoRNAs. H/ACA sRNA and...

The Saccharomyces cerevisiae U2 snRNA:pseudouridine-synthase Pus7p is a novel multisite–multisubstrate RNA:Ψ-synthase also acting on tRNAs

BEHM-ANSMANT, ISABELLE, URBAN, ALAN, MA, XIAOJU, YU, YI-TAO, MOTORIN, YURI, BRANLANT, CHRISTIANE

The Saccharomyces cerevisiae Pus7 protein was recently characterized as a novel RNA:pseudouridine (Ψ)-synthase acting at position 35 in U2 snRNA. However, U2 snRNA was the only potential substrate...

Crystal structure determination and site-directed mutagenesis of the Pyrococcus abyssi aCBF5–aNOP10 complex reveal crucial roles of the C-terminal domains of both proteins in H/ACA sRNP activity

Manival, Xavier, Charron, Christophe, Fourmann, Jean-Baptiste, Godard, François, Charpentier, Bruno, Branlant, Christiane

In archaeal rRNAs, the isomerization of uridine into pseudouridine (Ψ) is achieved by the H/ACA sRNPs and the minimal set of proteins required for RNA:Ψ-synthase activity is the aCBF5–aNOP10...

A structural, phylogenetic, and functional study of 15.5-kD/Snu13 protein binding on U3 small nucleolar RNA

MARMIER-GOURRIER, NATHALIE, CLÉRY, ANTOINE, SENTY-SÉGAULT, VÉRONIQUE, CHARPENTIER, BRUNO, SCHLOTTER, FLORENCE, LECLERC, FABRICE, ...

The 15.5-kD protein and its yeast homolog Snu13p bind U4 snRNA, U3 snoRNA, and the C/D box snoRNAs. In U4 snRNA, they associate with a helix-bulge-helix (K-turn) structure. U3 snoRNA contains two...

Conserved stem–loop structures in the HIV-1 RNA region containing the A3 3′ splice site and its cis-regulatory element: possible involvement in RNA splicing

Jacquenet, Sandrine, Ropers, Delphine, Bilodeau, Patricia S., Damier, Laurence, Mougin, Annie, Stoltzfus, C. Martin, ...

The HIV-1 transcript is alternatively spliced to over 30 different mRNAs. Whether RNA secondary structure can influence HIV-1 RNA alternative splicing has not previously been examined. Here we have...

Pseudouridine Mapping in the Saccharomyces cerevisiae Spliceosomal U Small Nuclear RNAs (snRNAs) Reveals that Pseudouridine Synthase Pus1p Exhibits a Dual Substrate Specificity for U2 snRNA and tRNA

Massenet, Séverine, Motorin, Yuri, Lafontaine, Denis L. J., Hurt, Eduard C., Grosjean, Henri, Branlant, Christiane

Pseudouridine (Ψ) residues were localized in the Saccharomyces cerevisiae spliceosomal U small nuclear RNAs (UsnRNAs) by using the chemical mapping method. In contrast to vertebrate UsnRNAs, S....

Conserved Loop I of U5 Small Nuclear RNA Is Dispensable for Both Catalytic Steps of Pre-mRNA Splicing in HeLa Nuclear Extracts

Ségault, Véronique, Will, Cindy L., Polycarpou-Schwarz, Maria, Mattaj, Iain W., Branlant, Christiane, Lührmann, Reinhard

The function of conserved regions of the metazoan U5 snRNA was investigated by reconstituting U5 small nuclear ribonucleoprotein particles (snRNPs) from purified snRNP proteins and HeLa or Xenopus U5...

RNomics in Archaea reveals a further link between splicing of archaeal introns and rRNA processing

Tang, Thean Hock, Rozhdestvensky, Timofey S., D’Orval, Béatrice Clouet, Bortolin, Marie-Line, Huber, Harald, Charpentier, Bruno, ...

The bulge–helix–bulge (BHB) motif recognised by the archaeal splicing endonuclease is also found in the long processing stems of archaeal rRNA precursors in which it is cleaved to generate...

Location of Ribosomal Protein Binding Sites on 16S Ribosomal RNA

Zimmermann, Robert A., Muto, Akira, Fellner, Peter, Ehresmann, Chantal, Branlant, Christiane

The distribution of ribosomal protein binding sites on the 16S ribosomal RNA molecule has been analyzed by limited ribonuclease hydrolysis of RNA-protein complexes, as well as by the interaction of...

The strong efficiency of the Escherichia coli gapA P1 promoter depends on a complex combination of functional determinants

Thouvenot, Benoit, Charpentier, Bruno, Branlant, Christiane

The Escherichia coli multi-promoter region of the gapA gene ensures a high level of GAPDH (glyceraldehyde-3-phosphate dehydrogenase) production under various growth conditions. In the exponential...

Reconstitution of archaeal H/ACA small ribonucleoprotein complexes active in pseudouridylation

Charpentier, Bruno, Muller, Sébastien, Branlant, Christiane

Pseudouridine (Ψ) are frequently modified residues in RNA. In Eukarya, their formation is catalyzed by enzymes or by ribonucleoprotein complexes (RNPs) containing H/ACA snoRNAs. H/ACA sRNA and...

The Saccharomyces cerevisiae U2 snRNA:pseudouridine-synthase Pus7p is a novel multisite–multisubstrate RNA:Ψ-synthase also acting on tRNAs

BEHM-ANSMANT, ISABELLE, URBAN, ALAN, MA, XIAOJU, YU, YI-TAO, MOTORIN, YURI, BRANLANT, CHRISTIANE

The Saccharomyces cerevisiae Pus7 protein was recently characterized as a novel RNA:pseudouridine (Ψ)-synthase acting at position 35 in U2 snRNA. However, U2 snRNA was the only potential substrate...

Crystal structure determination and site-directed mutagenesis of the Pyrococcus abyssi aCBF5–aNOP10 complex reveal crucial roles of the C-terminal domains of both proteins in H/ACA sRNP activity

Manival, Xavier, Charron, Christophe, Fourmann, Jean-Baptiste, Godard, François, Charpentier, Bruno, Branlant, Christiane

In archaeal rRNAs, the isomerization of uridine into pseudouridine (Ψ) is achieved by the H/ACA sRNPs and the minimal set of proteins required for RNA:Ψ-synthase activity is the aCBF5–aNOP10...

A structural, phylogenetic, and functional study of 15.5-kD/Snu13 protein binding on U3 small nucleolar RNA

MARMIER-GOURRIER, NATHALIE, CLÉRY, ANTOINE, SENTY-SÉGAULT, VÉRONIQUE, CHARPENTIER, BRUNO, SCHLOTTER, FLORENCE, LECLERC, FABRICE, ...

The 15.5-kD protein and its yeast homolog Snu13p bind U4 snRNA, U3 snoRNA, and the C/D box snoRNAs. In U4 snRNA, they associate with a helix-bulge-helix (K-turn) structure. U3 snoRNA contains two...

A previously unidentified activity of yeast and mouse RNA:pseudouridine synthases 1 (Pus1p) on tRNAs

Behm-Ansmant, Isabelle, Massenet, Séverine, Immel, FranÇoise, Patton, Jeffrey R., Motorin, Yuri, Branlant, Christiane

Mouse pseudouridine synthase 1 (mPus1p) was the first vertebrate RNA:pseudouridine synthase that was cloned and characterized biochemically. The mPus1p was previously found to catalyze Ψ formation...

Small-Molecule Inhibition of HIV pre-mRNA Splicing as a Novel Antiretroviral Therapy to Overcome Drug Resistance

Bakkour, Nadia, Lin, Yea-Lih, Maire, Sophie, Ayadi, Lilia, Mahuteau-Betzer, Florence, Nguyen, Chi Hung, ...

The development of multidrug-resistant viruses compromises antiretroviral therapy efficacy and limits therapeutic options. Therefore, it is an ongoing task to identify new targets for antiretroviral...

Identification of determinants in the protein partners aCBF5 and aNOP10 necessary for the tRNA:Ψ55-synthase and RNA-guided RNA:Ψ-synthase activities

Muller, Sébastien, Fourmann, Jean-Baptiste, Loegler, Christine, Charpentier, Bruno, Branlant, Christiane

Protein aNOP10 has an essential scaffolding function in H/ACA sRNPs and its interaction with the pseudouridine(Ψ)-synthase aCBF5 is required for the RNA-guided RNA:Ψ-synthase activity. Recently,...

The Saccharomyces cerevisiae Pus2 protein encoded by YGL063w ORF is a mitochondrial tRNA:Ψ27/28-synthase

Behm-Ansmant, Isabelle, Branlant, Christiane, Motorin, Yuri

The RNA:pseudouridine (Ψ)-synthase family is one of the most complex families of RNA modification enzymes. Ten genes encoding putative RNA:Ψ-synthases have been identified in S. cerevisiae. Most of...

Combined in silico and experimental identification of the Pyrococcus abyssi H/ACA sRNAs and their target sites in ribosomal RNAs

Muller, Sébastien, Leclerc, Fabrice, Behm-Ansmant, Isabelle, Fourmann, Jean-Baptiste, Charpentier, Bruno, Branlant, Christiane

How far do H/ACA sRNPs contribute to rRNA pseudouridylation in Archaea was still an open question. Hence here, by computational search in three Pyrococcus genomes, we identified seven H/ACA sRNAs and...

The Hsp90 chaperone controls the biogenesis of L7Ae RNPs through conserved machinery

Boulon, Séverine, Marmier-Gourrier, Nathalie, Pradet-Balade, Bérengère, Wurth, Laurence, Verheggen, Céline, Jády, Beáta E., ...

RNA-binding proteins of the L7Ae family are at the heart of many essential ribonucleoproteins (RNPs), including box C/D and H/ACA small nucleolar RNPs, U4 small nuclear RNP, telomerase, and messenger...