Publications de Camille Véronique Bernadette Goemans

Systematic mapping of antibiotic cross-resistance and collateral sensitivity with chemical genetics

Camille Véronique Bernadette Goemans, Florian Huber

By acquiring or evolving resistance to one antibiotic, bacteria can become cross-resistant to a second antibiotic, which further limits therapeutic choices. In the opposite scenario, initial resistance leads to collateral sensitivity to a second antibiotic ...

Springer Science and Business Media LLC2024

Bactericidal effect of tetracycline in E. coli strain ED1a may be associated with ribosome dysfunction

Martin Beck, Camille Véronique Bernadette Goemans, Christian Eugen Zimmerli

Ribosomes translate the genetic code into proteins. Recent technical advances have facilitated in situ structural analyses of ribosome functional states inside eukaryotic cells and the minimal bacterium Mycoplasma. However, such analyses of Gram-negative b ...

Nature Research2024

A molecular device for the redox quality control of GroEL/ES substrates

Camille Véronique Bernadette Goemans

Hsp60 chaperonins and their Hsp10 cofactors assist protein folding in all living cells, constituting the paradigmatic example of molecular chaperones. Despite extensive investigations of their structure and mechanism, crucial questions regarding how these ...

2023

Unravelling the collateral damage of antibiotics on gut bacteria

Camille Véronique Bernadette Goemans

Antibiotics are used to fight pathogens but also target commensal bacteria, disturbing the composition of gut microbiota and causing dysbiosis and disease1. Despite this well-known collateral damage, the activity spectrum of different antibiotic classes on ...

2021

How the assembly and protection of the bacterial cell envelope depend on cysteine residues

Camille Véronique Bernadette Goemans

The cell envelope of Gram-negative bacteria is a multilayered structure essential for bacterial viability; the peptidoglycan cell wall provides shape and osmotic protection to the cell, and the outer membrane serves as a permeability barrier against nox- i ...

2020

The functional proteome landscape of Escherichia coli

Camille Véronique Bernadette Goemans

Recent developments in high-throughput reverse genetics1,2 have revolutionized our ability to map gene function and interactions3,4,5,6. The power of these approaches depends on their ability to identify functionally associated genes, which elicit similar ...

2020

Stress-induced chaperones: a first line of defense against the powerful oxidant hypochlorous acid

Camille Véronique Bernadette Goemans

Hypochlorous acid (HOCl; bleach) is a powerful weapon used by our immune system to eliminate invading bacteria. Yet the way HOCl actually kills bacteria and how they defend themselves from its oxidative action have only started to be uncovered. As this mol ...

2019

An essential thioredoxin is involved in the control of the cell cycle in the bacterium Caulobacter crescentus

Camille Véronique Bernadette Goemans

Thioredoxins (Trxs) are antioxidant proteins that are conserved among all species. These proteins have been extensively studied and perform reducing reactions on a broad range of substrates. Here, we identified Caulobacter crescentus Trx1 (CCNA_03653; CcTr ...

2018

The Chaperone and Redox Properties of CnoX Chaperedoxins Are Tailored to the Proteostatic Needs of Bacterial Species

Camille Véronique Bernadette Goemans

Hypochlorous acid (bleach), an oxidizing compound produced by neutrophils, turns the Escherichia coli chaperedoxin CnoX into a powerful holdase protecting its substrates from bleach-induced aggregation. CnoX is well conserved in bacteria, even in non-infec ...

2018

CnoX Is a Chaperedoxin: A Holdase that Protects Its Substrates from Irreversible Oxidation

Camille Véronique Bernadette Goemans

Bleach (HOCl) is a powerful oxidant that kills bacteria in part by causing protein aggregation. It inactivates ATP-dependent chaperones, rendering cellular proteins mostly dependent on holdases. Here we identified Escherichia coli CnoX (YbbN) as a folding ...

2018

A New Role for Escherichia coli DsbC Protein in Protection against Oxidative Stress

Camille Véronique Bernadette Goemans

We report a new function for Escherichia coli DsbC, a protein best known for disulfide bond isomerization in the periplasm. We found that DsbC regulates the redox state of the single cysteine of the l-arabinose-binding protein AraF. This cysteine, which ca ...

2014

Folding mechanisms of periplasmic proteins

Camille Véronique Bernadette Goemans

More than one fifth of the proteins encoded by the genome of Escherichia coli are destined to the bacterial cell envelope. Over the past 20 years, the mechanisms by which envelope proteins reach their three-dimensional structure have been intensively studi ...

2014