Remy Colin

Jun 26, 2023 | nature.com | Josy ter Beek |Laura Alvarez |André Mateus |Remy Colin |Athanasios Typas |Mikhail M. Savitski | +3 more

AbstractTo explore favourable niches while avoiding threats, many bacteria use a chemotaxis navigation system. Despite decades of studies on chemotaxis, most signals and sensory proteins are still unknown. Many bacterial species release d-amino acids to the environment; however, their function remains largely unrecognized. Here we reveal that d-arginine and d-lysine are chemotactic repellent signals for the cholera pathogen Vibrio cholerae.

Apr 15, 2023 | nature.com | Remy Colin

AbstractThe operation of the central metabolism is typically assumed to be deterministic, but dynamics and high connectivity of the metabolic network make it potentially prone to generating fluctuations. However, time-resolved measurements of metabolite levels in individual cells that are required to characterize such fluctuations remained a challenge, particularly in small bacterial cells.