GdR Archaea : from environmental biodiversity to fundamental cellular processes

›9:30 (50min)

Welcome

9:30 - 10:20 (50min)

Welcome

Registration & Poster Mounting

›10:20 (10min)

Introduction
Didier FLAMENT / Bruno FRANZETTI

10:20 - 10:30 (10min)

Introduction

Didier FLAMENT / Bruno FRANZETTI

›10:30 (55min)

Keynote Lecture : Archaeal Chromosome Dynamics
Stephen D. BELL

10:30 - 11:25 (55min)

Keynote Lecture : Archaeal Chromosome Dynamics

Stephen D. BELL

›11:25 (1h15)

Genomic Integrity and Gene Expression
Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

11:25 - 12:40 (1h15)

Genomic Integrity and Gene Expression

Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

› Stochastic features of haloarchaeal DNA replication and repair - Hannu MYLLYKALLIO, Laboratoire d'Optique et Biosciences 11:25-11:50 (25min)

› Introducing an opposite twist: Consequence of DNA Gyrase activity on viability and DNA topology of hyperthermophilic archaeon Thermococcus kodakarensis - Paul VILLAIN, Institut de Biologie Intégrative de la Cellule 11:50-12:15 (25min)

› Step by step dissection of the ATP-dependent catalysis of reverse gyrase - Marc NADAL, Institut Jacques Monod 12:15-12:40 (25min)

›12:40 (1h40)

Lunch & Poster Session

12:40 - 14:20 (1h40)

Lunch & Poster Session

›14:20 (1h25)

Genomic Integrity and Gene Expression
Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

14:20 - 15:45 (1h25)

Genomic Integrity and Gene Expression

Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

› Structural basis for DNA replication by the archaeal D-family DNA polymerase revealed by cryo-electron microscopy - Ludovic SAUGUET, Institut Pasteur 14:20-14:45 (25min)

› A Comparative study of ribonucleotides incorporation reveals strong bias and hotspots in the genome of two Archaea: H. volcanii and T. barophilus. - Yann MOALIC, Laboratoire de Microbiologie des Environnements Extrêmes 14:45-15:10 (25min)

› Recombinase/primase interplay in the hyperthermophilic archaeon Pyrococcus abyssi : toward a coupling between recombination and replication machinery ? - Gaëlle HOGREL, Laboratoire de Microbiologie des Environnements Extrêmes 15:10-15:20 (10min)

› Initiation of DNA replication in Archaea: new paradigm - Rémi DULERMO, Laboratoire de Microbiologie des Environnements Extrêmes 15:20-15:45 (25min)

›15:45 (25min)

Coffee Break

15:45 - 16:10 (25min)

Coffee Break

›16:10 (1h25)

Genomic Integrity and Gene Expression
Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

16:10 - 17:35 (1h25)

Genomic Integrity and Gene Expression

Chairs : Ghislaine HENNEKE / Béatrice CLOUET D'ORVAL

› Archaea-guided identification of an elusive human rRNA m6A methyltransferase enzyme - Marc GRAILLE, Laboratoire de Biochimie 16:10-16:35 (25min)

› Insights into associated-RNA degrading enzymes and RNA processing pathways in Archaea - Béatrice CLOUET D'ORVAL, Laboratoire de Microbiologie et de Génétique Moléculaires 16:35-17:00 (25min)

› Biochemical and Structural studies of the ASH-Ski2 helicase/aRNase J Ribonuclease Complex in Thermococcales - Manon BATISTA, Laboratoire de Microbiologie et de Génétique Moléculaires 17:00-17:25 (25min)

› The β-CASP aRNase J ribonuclease is at the cross-road of the translation and RNA degradation machineries, the ribosome and the exosome, together with the archaeal specific helicase ASH-Ski2 in Thermococcales - Etienne Clarisse, Laboratoire de Microbiologie et de Génétique Moléculaires 17:25-17:35 (10min)