A flexible framework for multi-particle refinement in cryo-electron tomography.

Cryo-electron tomography (cryo-ET) and subtomogram averaging (STA) are increasingly used for macromolecular structure determination in situ. Here, we introduce a set of computational tools and resources designed to enable flexible approaches to STA through increased automation and simplified metadat...

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Autores principales: Alister Burt, Lorenzo Gaifas, Tom Dendooven, Irina Gutsche
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/cdb855dd7afc4421bb4c555c109637b7
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spelling oai:doaj.org-article:cdb855dd7afc4421bb4c555c109637b72021-12-02T19:54:38ZA flexible framework for multi-particle refinement in cryo-electron tomography.1544-91731545-788510.1371/journal.pbio.3001319https://doaj.org/article/cdb855dd7afc4421bb4c555c109637b72021-08-01T00:00:00Zhttps://doi.org/10.1371/journal.pbio.3001319https://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885Cryo-electron tomography (cryo-ET) and subtomogram averaging (STA) are increasingly used for macromolecular structure determination in situ. Here, we introduce a set of computational tools and resources designed to enable flexible approaches to STA through increased automation and simplified metadata handling. We create a bidirectional interface between the Dynamo software package and the Warp-Relion-M pipeline, providing a framework for ab initio and geometrical approaches to multiparticle refinement in M. We illustrate the power of working within this framework by applying it to EMPIAR-10164, a publicly available dataset containing immature HIV-1 virus-like particles (VLPs), and a challenging in situ dataset containing chemosensory arrays in bacterial minicells. Additionally, we provide a comprehensive, step-by-step guide to obtaining a 3.4-Å reconstruction from EMPIAR-10164. The guide is hosted on https://teamtomo.org/, a collaborative online platform we establish for sharing knowledge about cryo-ET.Alister BurtLorenzo GaifasTom DendoovenIrina GutschePublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 19, Iss 8, p e3001319 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Alister Burt
Lorenzo Gaifas
Tom Dendooven
Irina Gutsche
A flexible framework for multi-particle refinement in cryo-electron tomography.
description Cryo-electron tomography (cryo-ET) and subtomogram averaging (STA) are increasingly used for macromolecular structure determination in situ. Here, we introduce a set of computational tools and resources designed to enable flexible approaches to STA through increased automation and simplified metadata handling. We create a bidirectional interface between the Dynamo software package and the Warp-Relion-M pipeline, providing a framework for ab initio and geometrical approaches to multiparticle refinement in M. We illustrate the power of working within this framework by applying it to EMPIAR-10164, a publicly available dataset containing immature HIV-1 virus-like particles (VLPs), and a challenging in situ dataset containing chemosensory arrays in bacterial minicells. Additionally, we provide a comprehensive, step-by-step guide to obtaining a 3.4-Å reconstruction from EMPIAR-10164. The guide is hosted on https://teamtomo.org/, a collaborative online platform we establish for sharing knowledge about cryo-ET.
format article
author Alister Burt
Lorenzo Gaifas
Tom Dendooven
Irina Gutsche
author_facet Alister Burt
Lorenzo Gaifas
Tom Dendooven
Irina Gutsche
author_sort Alister Burt
title A flexible framework for multi-particle refinement in cryo-electron tomography.
title_short A flexible framework for multi-particle refinement in cryo-electron tomography.
title_full A flexible framework for multi-particle refinement in cryo-electron tomography.
title_fullStr A flexible framework for multi-particle refinement in cryo-electron tomography.
title_full_unstemmed A flexible framework for multi-particle refinement in cryo-electron tomography.
title_sort flexible framework for multi-particle refinement in cryo-electron tomography.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/cdb855dd7afc4421bb4c555c109637b7
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