2021Voss Melting

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Citation

Voss, J. M.; Harder, O. F.; Olshin, P. K.; Drabbels, M. & Lorenz, U. J. Rapid Melting and Revitrification as an Approach to Microsecond Time-Resolved Cryo-Electron Microscopy. Chemical Physics Letters, 2021, 778, 138812

Abstract

Proteins typically undergo dynamics on the microsecond to millisecond timescale, which is much faster than the time resolution of cryo-electron microscopy. Here, we propose a novel approach for microsecond time-resolved cryo-electron microscopy that involves melting a cryo specimen in situ with a laser beam. The sample remains liquid for the duration of the laser pulse, offering a tunable time window in which the dynamics of embedded particles can be induced in a liquid environment. After the laser pulse, the sample vitrifies, trapping particles in their transient configurations. As a proof of principle, we study the disassembly of particles after they incur structural damage.

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Links

https://www.sciencedirect.com/science/article/pii/S0009261421004954

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