Specific radiation damage is a lesser concern at room temperature

Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-calle...

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Main Authors: Guillaume Gotthard, Sylvain Aumonier, Daniele De Sanctis, Gordon Leonard, David von Stetten, Antoine Royant
Format: Article
Language:English
Published: International Union of Crystallography 2019-07-01
Series:IUCrJ
Subjects:
Online Access:http://scripts.iucr.org/cgi-bin/paper?S205225251900616X
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author Guillaume Gotthard
Sylvain Aumonier
Daniele De Sanctis
Gordon Leonard
David von Stetten
Antoine Royant
author_facet Guillaume Gotthard
Sylvain Aumonier
Daniele De Sanctis
Gordon Leonard
David von Stetten
Antoine Royant
author_sort Guillaume Gotthard
collection DOAJ
description Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-called specific radiation damage that affects certain amino-acid residues and, in particular, the active sites of many proteins. Here, a series of MX experiments are described which suggest that specific and global radiation damage are much less decoupled at room temperature than they are at cryogenic temperatures. The results reported here demonstrate the interest in reviving the practice of collecting MX diffraction data at room temperature and allow structural biologists to favourably envisage the development of time-resolved MX experiments at synchrotron sources.
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spelling doaj.art-0099c3ca4b3041a48756dd84e750d7dc2022-12-21T17:23:17ZengInternational Union of CrystallographyIUCrJ2052-25252019-07-016466568010.1107/S205225251900616Xmf5033Specific radiation damage is a lesser concern at room temperatureGuillaume Gotthard0Sylvain Aumonier1Daniele De Sanctis2Gordon Leonard3David von Stetten4Antoine Royant5European Synchrotron Radiation Facility, F-38043 Grenoble, FranceEuropean Synchrotron Radiation Facility, F-38043 Grenoble, FranceEuropean Synchrotron Radiation Facility, F-38043 Grenoble, FranceEuropean Synchrotron Radiation Facility, F-38043 Grenoble, FranceEuropean Synchrotron Radiation Facility, F-38043 Grenoble, FranceEuropean Synchrotron Radiation Facility, F-38043 Grenoble, FranceCarrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-called specific radiation damage that affects certain amino-acid residues and, in particular, the active sites of many proteins. Here, a series of MX experiments are described which suggest that specific and global radiation damage are much less decoupled at room temperature than they are at cryogenic temperatures. The results reported here demonstrate the interest in reviving the practice of collecting MX diffraction data at room temperature and allow structural biologists to favourably envisage the development of time-resolved MX experiments at synchrotron sources.http://scripts.iucr.org/cgi-bin/paper?S205225251900616Xroom-temperature macromolecular crystallographycryocrystallographyspecific radiation damagetime-resolved crystallography
spellingShingle Guillaume Gotthard
Sylvain Aumonier
Daniele De Sanctis
Gordon Leonard
David von Stetten
Antoine Royant
Specific radiation damage is a lesser concern at room temperature
IUCrJ
room-temperature macromolecular crystallography
cryocrystallography
specific radiation damage
time-resolved crystallography
title Specific radiation damage is a lesser concern at room temperature
title_full Specific radiation damage is a lesser concern at room temperature
title_fullStr Specific radiation damage is a lesser concern at room temperature
title_full_unstemmed Specific radiation damage is a lesser concern at room temperature
title_short Specific radiation damage is a lesser concern at room temperature
title_sort specific radiation damage is a lesser concern at room temperature
topic room-temperature macromolecular crystallography
cryocrystallography
specific radiation damage
time-resolved crystallography
url http://scripts.iucr.org/cgi-bin/paper?S205225251900616X
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