Portrait from Jan Brugués
© TUD CMCB, Magdalena Gonciarz

Expertise

The Brugués group has a strong background in biophysics, combining both theory and experiments. From the experimental side the Brugués lab uses cytoplasmic extracts, in vivo measurements and in vitro reconstitution. Key research topics have included co-condensation of DNA and protein interactions1,2, methods to quantitatively measure protein concentration in condensates3, reconstitution of chromatin processes in single DNA strands4, and self-organization and mechanics of the mitotic spindle as an active liquid droplet5-8. In recent years, the group has developed a theoretical framework for polymers in mixed solvents which explaining unusual phase transition scenarios. In collaboration with the Alberti and Jahnel groups, we have demonstrated that capillary-like forces arising from DNA-protein interactions play a key role in DNA damage2.

References:

  1. Quail, Brugués et al. Force generation by protein–DNA co-condensation. Nat Phys. 2021;17(9):1007-1012. https://doi.org/10.1038/s41567-021-01285-1
  2. Chappidi, Brugués et al. PARP1-DNA co-condensation drives DNA repair site assembly to prevent disjunction of broken DNA ends. Cell. 2024;187(4):945-961.e18. https://doi.org/10.1016/j.cell.2024.01.015
  3. McCall, Brugués et al. Quantitative phase microscopy enables precise and efficient determination of biomolecular condensate composition. bioRxiv. Published online October 2020. https://doi.org/10.1101/2020.10.25.352823
  4. Golfier, Brugués et al. Cohesin and condensin extrude DNA loops in a cell cycle-dependent manner. eLife. 2020;9:e53885.
  5. Dalton, Brugués et al. A gelation transition enables the self-organization of bipolar metaphase spindles. Nat Phys. 2022;18(3):323-331. https://doi.org/10.1038/s41567-021-01467-x
  6. Oriola, Brugués et al. Active forces shape the metaphase spindle through a mechanical instability. Proc Natl Acad Sci. 2020;117(28):16154-16159. https://doi.org/10.1073/pnas.2002446117
  7. Golfier, Brugués et al. Single-Molecule Approaches to Study DNA Condensation. Methods Mol Biol Clifton NJ. 2024;2740:1-19. https://doi.org/10.1007/978-1-0716-3557-5_1
  8. Rieckhoff, Brugués et al. Spindle Scaling Is Governed by Cell Boundary Regulation of Microtubule Nucleation. Curr Biol. 2020;30(24):4973-4983.e10. https://doi.org/10.1016/j.cub.2020.10.093

Current news by this research group

New Research Training Group for Biomolecular Condensates in Dresden

The DFG approved a funding application to establish a new Research Training Group (RTG 3120) in Dresden to train PhD students interdisciplinary methods and approaches to study Biomolecular Condensates. Read the press releases for more:…

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A quick intro to the Phase Diagram

Phase Diagrams are graphic representations that help understand many physical systems such as magnets and pure substances like water. These diagrams also help us understand how dense droplets of biomolecules, called Biomolecular Condensates, form inside cells. Phase Diagrams predict under which…

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Physics of Life Excellence Postdoctoral Fellowships

Join research groups at the Physics of Life (PoL) as a postdoc by applying to a PoL Excellence Postdoctoral Fellowship and benefit from up to 4-year funded position in association with PoL groups and the Mentorship program. Applicants should hold a PhD in Physics, Biology or related fields (at the…

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