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Our team is interested in macrocomplexes of the bacterial enveloppe that energize essential functions in bacteria, such as cell division and transport across the membranes. We use Escherichia coli and the human pathogen Vibrio cholerae as a model organisms to explore the structure and function of two of these conserved molecular motors: the Tol-Pal and the TonB-ExbB-ExbD systèmes.

KEYWORDS

Tol-Pal, Tol and Ton molecular motor, protein-protein interactions, proton-motive force, cell division, colicins, filamentous phages, host-phage interaction 

EXPERTISES

Biochemistry, Genetics, Microbiology, Microscopy, Molecular Biology

TEACHING

about 400 hrs/year

at Aix-Marseille University :

Biochemistry, Microbiology, Synthetic Biology, Genetics

COLLABORATIONS

S. Buchanan, NIDDK, NIH, Bethesda, MD, USA

T. Mignot, LCB UMR7283, Marseille, France

Decoupling filamentous phage uptake and energy of the TolQRA motor in Escherichia coli. Samire P, Serrano B, Duche D, Lemarie E, Lloubes R, Houot L. J Bacteriol. 2019 Oct 21.
Cryo-EM structure of the bacterial Ton motor subcomplex ExbB-ExbD provides information on structure and stoichiometry. Celia H, Botos I, Ni X, Fox T, De Val N, Lloubes R, Jiang J, Buchanan SK. Nature Commun Biol. 2019 Oct 4;2:358.
 
Tol Energy-Driven Localization of Pal and Anchoring to the Peptidoglycan Promote Outer-Membrane Constriction. Petiti M, Serrano B, Faure L, Lloubes R, Mignot T, Duché D. J Mol Biol. 431(17):3275-3288, 2019

Recent publications

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