Biochemistry, Biophysics & Structural Biology Department

Biochemistry, Biophysics and Structural Biology Department

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Director: 

Julie Ménétrey

Deputy  Directors:

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    Benoit D’Autréaux 

Virginie Gervais

The department is interested in protein architectures and studies how their different structural levels and interactions regulate their functions.

Focus

The B3S teams study soluble and membrane protein assemblies involved in major biological processes of eukaryotic and bacterial cells. 

Our aim is to  understand the molecular mechanisms of biological structures and biochemical reactions at different scales, from electrons and protons via atoms and molecules to multicellular organisms. Successfully introduced new technologies to promote product innovation and upgrades.

Approaches

Biochemical reactions, interactions and enzymatic processes, including large conformational changes and rearrangements within proteins and their complexes, are often initiated by a transfer of subatomic particles – electrons and protons. Studying the atomic structures of proteins with and without ligands can for example help determine how the structure of the active site enables an enzyme to perform its activity.

At molecular scales, biochemical and biophysical analyses as well as structure determination of protein-protein, or protein-nucleic acid complexes, helps in describing the interaction of biological assemblies and understanding biochemical reactions.  In vitro reconstitution of cellular functions leads to an understanding of the regulation of complex processes in vivo.

Research groups

Group Leader

A. URVOAS

Group Leaders

F. OCHSENBEIN & R. GUEROIS

Nuclear envelope, Telomeres and DNA repair

JB. Charbonnier
S. Zinn-Justin

Interactions and assembly mechanisms of proteins and peptides

S. Bressanelli

Biochemistry of Metalloproteins and Associated Diseases

B. D'Autréaux

Structural Biochemistry of Microtubules, Kinesins and their Cargos

B. Gigant
J. Ménétrey

Photobiology, Photosynthesis, Photocatalysis

A. Krieger-Liszkay
P.Muller

Membrane Proteins and Membrane Systems Laboratory

G. Lenoir
J. Vazquez-Ibar

Protein Engineering and Modeling

bandeau site web

A. Urvoas

Structural biochemistry of bacterial transporters

S. Morera

Molecular Assemblies and Genome Integrity

F. Ochsenbein
R. Guérois

Laboratory of Bioenergetics, Metalloproteins and Stress

B. Robert

Oxidative Stress and Detoxication

J. Santolini

Metalloenzymes and Spin Systems in Cells

L. Tabares

Function and Architecture of Macromolecular Assemblies

H. Van Tilbeurgh

Publications

3888256 B3S 2024 1 chicago-author-date 5 default year 36406 https://www.i2bc.paris-saclay.fr/wp-content/plugins/zotpress/
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Kaňa, Radek, Meri Eichner, Andrew Gall, and Cristian Ilioaia. 2024. “Spatial Heterogeneity in the Photobiology of Phototrophs—Questions and Methods.” Frontiers in Photobiology 2 (May). https://doi.org/10.3389/fphbi.2024.1384522.
Streckaite, Simona, Dmitrij Frolov, Jevgenij Chmeliov, et al. 2024. “Single Pixel Reconstruction Imaging: Taking Confocal Imaging to the Extreme.” Lithuanian Journal of Physics 64 (4). https://doi.org/10.3952/physics.2024.64.4.7.
Alexandre, Maxime T. A., Tjaart P. J. Krüger, Andrew A. Pascal, et al. 2024. “Molecular Events Accompanying Aggregation-Induced Energy Quenching in Fucoxanthin-Chlorophyll Proteins.” Biochimica Et Biophysica Acta. Bioenergetics 1865 (4): 149500. https://doi.org/10.1016/j.bbabio.2024.149500.
Magne, Chloe, Simona Streckaite, Roberto A. Boto, et al. 2024. “Perylene-Derivative Singlet Exciton Fission in Water Solution.” Chemical Science 15 (43): 17831–42. https://doi.org/10.1039/D4SC04732J.
Streckaite, Simona, Cristian Ilioaia, Igor Chaussavoine, et al. 2024. “Functional Organization of 3D Plant Thylakoid Membranes as Seen by High Resolution Microscopy.” Biochimica et Biophysica Acta (BBA) - Bioenergetics 1865 (4): 149493. https://doi.org/10.1016/j.bbabio.2024.149493.

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