Skip to Main content Skip to Navigation
Journal articles

Simultaneous Determination of Protein Structure and Dynamics Using Cryo-Electron Microscopy

Abstract : Cryo-electron microscopy is rapidly emerging as a powerful technique to determine the structures of complex macromolecular systems elusive to other techniques. Because many of these systems are highly dynamical, characterizing their movements is also a crucial step to unravel their biological functions. To achieve this goal, we report an integrative modeling approach to simultaneously determine structure and dynamics of macromolecular systems from cryo-electron microscopy density maps. By quantifying the level of noise in the data and dealing with their ensemble-averaged nature, this approach enables the integration of multiple sources of information to model ensembles of structures and infer their populations. We illustrate the method by characterizing structure and dynamics of the integral membrane receptor STRA6, thus providing insights into the mechanisms by which it interacts with retinol binding protein and translocates retinol across the membrane.
Complete list of metadatas

Cited literature [70 references]  Display  Hide  Download

https://hal-pasteur.archives-ouvertes.fr/pasteur-02404467
Contributor : Riccardo Pellarin <>
Submitted on : Wednesday, December 11, 2019 - 1:27:37 PM
Last modification on : Monday, January 13, 2020 - 5:08:16 PM
Long-term archiving on: : Thursday, March 12, 2020 - 7:28:41 PM

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Massimiliano Bonomi, Riccardo Pellarin, Michele Vendruscolo. Simultaneous Determination of Protein Structure and Dynamics Using Cryo-Electron Microscopy. Biophysical Journal, Biophysical Society, 2018, 114 (7), pp.1604-1613. ⟨10.1016/j.bpj.2018.02.028⟩. ⟨pasteur-02404467⟩

Share

Metrics

Record views

57

Files downloads

137