Publications de Virginie Sandra Braman

Extensive tissue-specific expression variation and novel regulators underlying circadian behavior

Matteo Dal Peraro, Bart Deplancke, Vincent Roland Julien Gardeux, Julie Marie Russeil, Virginie Sandra Braman, Antonio Carlos Alves Meireles Filho, Maria Litovchenko, Michael Vincent Frochaux, Alessio Prunotto, Brian Dennis Hollis

Natural genetic variation affects circadian rhythms across the evolutionary tree, but the underlying molecular mechanisms are poorly understood. We investigated population-level, molecular circadian clock variation by generating >700 tissue-specific transc ...

2021

cis-regulatory variation modulates susceptibility to enteric infection in the Drosophila genetic reference panel

Bart Deplancke, Vincent Roland Julien Gardeux, Maroun Bou Sleiman, Virginie Sandra Braman, Riccardo Dainese, Maria Litovchenko, Michael Vincent Frochaux, Dani Osman, Brian Dennis Hollis, Tommaso Andreani

Background: Resistance to enteric pathogens is a complex trait at the crossroads of multiple biological processes. We have previously shown in the Drosophila Genetic Reference Panel (DGRP) that resistance to infection is highly heritable, but our understan ...

2020

Mitochondrial haplotypes affect metabolic phenotypes in the Drosophila Genetic Reference Panel

Johan Auwerx, Bart Deplancke, Virginie Sandra Braman, Adamantia Kapopoulou, Maria Litovchenko, Brian Dennis Hollis, Roel Paulus Josephus Bevers

The nature and extent of mitochondrial DNA variation in a population and how it affects traits is poorly understood. Here we resequence the mitochondrial genomes of 169 Drosophila Genetic Reference Panel lines, identifying 231 variants that stratify along ...

2019

Commensal Gut Bacteria Buffer the Impact of Host Genetic Variants on Drosophila Developmental Traits under Nutritional Stress

Bart Deplancke, Virginie Sandra Braman, Maroun Bou Sleiman, Maria Litovchenko, Michael Vincent Frochaux

Eukaryotic genomes encode several buffering mechanisms that robustly maintain invariant phenotypic outcome despite fluctuating environmental conditions. Here we show that the Drosophila gut-associated commensals, represented by a single facultative symbion ...

2019

Production of active glycosylation-deficient gamma-secretase complex for crystallization studies

Florian Maria Wurm, David Hacker, Patrick Fraering, Virginie Sandra Braman, Mitko Dimitrov, Hermeto Gerber, Andres Ricardo Lopez Robles

Alzheimer's disease (AD)-associated gamma-secretase is a ubiquitously expressed multi-subunit protease complex embedded in the lipid bilayer of cellular compartments including endosomes and the plasma membrane. Although gamma-secretase is of crucial intere ...

Wiley-Blackwell2015