Jean-Marc Deragon

A comprehensive analysis of the La-motif protein superfamily (2009)

Bousquet-Antonelli, Cécile, Deragon, Jean-Marc

The extremely well-conserved La motif (LAM), in synergy with the immediately following RNA recognition motif (RRM), allows direct binding of the (genuine) La autoantigen to RNA polymerase III primary...

ArabidopsiseIF2α kinase GCN2 is essential for growth in stress conditions and is activated by wounding (2008)

Lageix, Sébastien, Lanet, Elodie, Pouch-Pélissier, Marie-Noëlle, Espagnol, Marie-Claude, Robaglia, Christophe, Deragon, Jean-Marc, ...

Abstract Background Phosphorylation of eIF2α provides a key mechanism for down-regulating protein synthesis in response to nutrient starvation or stresses in mammalian and yeast cells. However, this...

A bona fide La protein is required for embryogenesis in Arabidopsis thaliana (2007)

Fleurdépine, Sophie, Deragon, Jean-Marc, Devic, Martine, Guilleminot, Jocelyne, Bousquet-Antonelli, Cécile

Searches in the Arabidopsis thaliana genome using the La motif as query revealed the presence of eight La or La-like proteins. Using structural and phylogenetic criteria, we identified two putative...

Short Interspersed Elements (SINEs) in Plants: Origin, Classification, and Use as Phylogenetic Markers (2006)

Deragon, Jean-Marc, Zhang, Xiaoyu

Short interspersed elements (SINEs) are a class of dispersed mobile sequences that use RNA as an intermediate in an amplification process called retroposition. The presence-absence of a SINE at a...

Synthesis and processing of tRNA-related SINE transcripts in Arabidopsis thaliana (2004)

Pélissier, Thierry, Bousquet-Antonelli, Cécile, Lavie, Laurence, Deragon, Jean-Marc

Despite the ubiquitous distribution of tRNA-related short interspersed elements (SINEs) in eukaryotic species, very little is known about the synthesis and processing of their RNAs. In this work, we...

The Evolutionary Origin and Genomic Organization of SINEs in Arabidopsis thaliana (2001)

Lenoir, Alain, Lavie, Laurence, Prieto, José-Luis, Goubely, Chantal, Cote, Jean-Charles, Pélissier, Thierry, ...

We have characterized the two families of SINE retroposons present in Arabidopsis thaliana. The origin, distribution, organization, and evolutionary history of RAthE1 and RAthE2 elements were studied...

SINE Retroposons Can Be Used In Vivo as Nucleation Centers for De Novo Methylation

Arnaud, Philippe, Goubely, Chantal, Pélissier, Thierry, Deragon, Jean-Marc

SINEs (short interspersed elements) are an abundant class of transposable elements found in a wide variety of eukaryotes. Using the genomic sequencing technique, we observed that plant S1 SINE...

Synthesis and processing of tRNA-related SINE transcripts in Arabidopsis thaliana

Pélissier, Thierry, Bousquet-Antonelli, Cécile, Lavie, Laurence, Deragon, Jean-Marc

Despite the ubiquitous distribution of tRNA-related short interspersed elements (SINEs) in eukaryotic species, very little is known about the synthesis and processing of their RNAs. In this work, we...

SINE Retroposons Can Be Used In Vivo as Nucleation Centers for De Novo Methylation

Arnaud, Philippe, Goubely, Chantal, Pélissier, Thierry, Deragon, Jean-Marc

SINEs (short interspersed elements) are an abundant class of transposable elements found in a wide variety of eukaryotes. Using the genomic sequencing technique, we observed that plant S1 SINE...

Synthesis and processing of tRNA-related SINE transcripts in Arabidopsis thaliana

Pélissier, Thierry, Bousquet-Antonelli, Cécile, Lavie, Laurence, Deragon, Jean-Marc

Despite the ubiquitous distribution of tRNA-related short interspersed elements (SINEs) in eukaryotic species, very little is known about the synthesis and processing of their RNAs. In this work, we...

A bona fide La protein is required for embryogenesis in Arabidopsis thaliana

Fleurdépine, Sophie, Deragon, Jean-Marc, Devic, Martine, Guilleminot, Jocelyne, Bousquet-Antonelli, Cécile

Searches in the Arabidopsis thaliana genome using the La motif as query revealed the presence of eight La or La-like proteins. Using structural and phylogenetic criteria, we identified two putative...

The Nanovirus-Encoded Clink Protein Affects Plant Cell Cycle Regulation through Interaction with the Retinoblastoma-Related Protein▿ †

Lageix, Sébastien, Catrice, Olivier, Deragon, Jean-Marc, Gronenborn, Bruno, Pélissier, Thierry, Ramírez, Bertha Cecilia

Nanoviruses, multicomponent single-stranded DNA plant viruses, encode a unique cell cycle link protein, Clink, that interacts with retinoblastoma-related proteins (RBR). We have established...

SINE RNA Induces Severe Developmental Defects in Arabidopsis thaliana and Interacts with HYL1 (DRB1), a Key Member of the DCL1 Complex

Pouch-Pélissier, Marie-Noëlle, Pélissier, Thierry, Elmayan, Taline, Vaucheret, Hervé, Boko, Drasko, Jantsch, Michael F., ...

The proper temporal and spatial expression of genes during plant development is governed, in part, by the regulatory activities of various types of small RNAs produced by the different RNAi pathways....

On the Evolution and Expression of Chlamydomonas reinhardtii Nucleus-Encoded Transfer RNA Genes

Cognat, Valérie, Deragon, Jean-Marc, Vinogradova, Elizaveta, Salinas, Thalia, Remacle, Claire, Maréchal-Drouard, Laurence

In Chlamydomonas reinhardtii, 259 tRNA genes were identified and classified into 49 tRNA isoaccepting families. By constructing phylogenetic trees, we determined the evolutionary history for each...

A comprehensive analysis of the La-motif protein superfamily

Bousquet-Antonelli, Cécile, Deragon, Jean-Marc

The extremely well-conserved La motif (LAM), in synergy with the immediately following RNA recognition motif (RRM), allows direct binding of the (genuine) La autoantigen to RNA polymerase III primary...

Detailed Analysis of a Contiguous 22-Mb Region of the Maize Genome

Wei, Fusheng, Stein, Joshua C., Liang, Chengzhi, Zhang, Jianwei, Fulton, Robert S., Baucom, Regina S., ...

Most of our understanding of plant genome structure and evolution has come from the careful annotation of small (e.g., 100 kb) sequenced genomic regions or from automated annotation of complete...

Exceptional Diversity, Non-Random Distribution, and Rapid Evolution of Retroelements in the B73 Maize Genome

Baucom, Regina S., Estill, James C., Chaparro, Cristian, Upshaw, Naadira, Jogi, Ansuya, Deragon, Jean-Marc, ...

Recent comprehensive sequence analysis of the maize genome now permits detailed discovery and description of all transposable elements (TEs) in this complex nuclear environment. Reiteratively...