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  The in vivo mechanics of the magnetotactic backbone as revealed by correlative FLIM-FRET and STED microscopy

Günther, E., Klauß, A., Toro-Nahuelpan, M., Schüler, D., Hille, C., & Faivre, D. (2019). The in vivo mechanics of the magnetotactic backbone as revealed by correlative FLIM-FRET and STED microscopy. Scientific Reports, 9: 19615. doi:10.1038/s41598-019-55804-5.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-6F76-B Version Permalink: http://hdl.handle.net/21.11116/0000-0005-6F77-A
Genre: Journal Article

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Günther, Erika1, Author              
Klauß, André, Author
Toro-Nahuelpan, Mauricio, Author
Schüler, Dirk, Author
Hille, Carsten, Author
Faivre, Damien1, Author              
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1Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863290              

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 Abstract: Protein interaction and protein imaging strongly benefit from the advancements in time-resolved and superresolution fluorescence microscopic techniques. However, the techniques were typically applied separately and ex vivo because of technical challenges and the absence of suitable fluorescent protein pairs. Here, we show correlative in vivo fluorescence lifetime imaging microscopy Förster resonance energy transfer (FLIM-FRET) and stimulated emission depletion (STED) microscopy to unravel protein mechanics and structure in living cells. We use magnetotactic bacteria as a model system where two proteins, MamJ and MamK, are used to assemble magnetic particles called magnetosomes. The filament polymerizes out of MamK and the magnetosomes are connected via the linker MamJ. Our system reveals that bacterial filamentous structures are more fragile than the connection of biomineralized particles to this filament. More importantly, we anticipate the technique to find wide applicability for the study and quantification of biological processes in living cells and at high resolution.

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Language(s): eng - English
 Dates: 2019-12-232019
 Publication Status: Published in print
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 Identifiers: DOI: 10.1038/s41598-019-55804-5
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 9 Sequence Number: 19615 Start / End Page: - Identifier: ISSN: 2045-2322