Laboratoire Expression Génétique Microbienne (EGM)

Institut de Biologie Physico-Chimique (IBPC) - PARIS"> Accueil MG


Bacteria have to respond and adapt very rapidly to environmental stress or changes in growth conditions. One of the strategies they have developed to do so is to regulate gene expression at the post-transcriptional level, using RNA and proteins as regulators. Our research interests are (1) to gain insights into the mechanisms by which gene expression in E. coli is modulated, directly or indirectly, by molecules as diverse as small regulatory RNAs (sRNAs) and proteins involved in RNA metabolism such as ribonucleases, poly(A)polymerase, Hfq and possibly others, and (2) to dissect the links between different regulatory networks involving sRNAs and other transcriptional or translational regulators. [More information…]

Capture d’écran 2023-07-17 à 16.01.06 Recent Publications

  • Jagodnik J., Tjaden B., Ross W. and Gourse R.L. (2023) “Identification and characterization of RNA binding sites for (p)ppGpp using RNA-DRaCALA” Nucleic Acids Res. 51(2):852-869.

  • Lejars M. and Hajnsdorf E. (2023) "Bacterial RNase III: targets and physiology” Biochimie, in press. doi: 10.1016/j.biochi.2023.07.009

  • Genera M., Colcombet-Cazenave B., Croitoru A., Raynal B., Mechaly A., Caillet J., Haouz A., Wolff N. and Caillet-Saguy C. (2023) "Interactions of the protein tyrosine phosphatase PTPN3 with viral and cellular partners through its PDZ domain: insights into structural determinants and phosphatase activity." Front. Mol. Biosci. 10:1192621. doi: 10.3389/fmolb.2023.1192621

  • Fontaine F., Turjeman S., Callens K., Koren O. (2023) "The intersection of undernutrition, microbiome, and child development in the first years of life." Nat Commun. Jun 15;14(1):3554. doi: 10.1038/s41467-023-39285-9.

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