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Machining protein microcrystals for structure determination by electron diffraction

Abstract:
We demonstrate that ion-beam milling of frozen, hydrated protein crystals to thin lamella preserves the crystal lattice to near-atomic resolution. This provides a vehicle for protein structure determination, bridging the crystal size gap between the nanometer scale of conventional electron diffraction and micron scale of synchrotron microfocus beamlines. The demonstration that atomic information can be retained suggests that milling could provide such detail on sections cut from vitrified cells.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1073/pnas.1809978115

Authors


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Institution:
University of Oxford
Division:
Medical Sciences Division
Department:
NDM
Sub department:
Structural Biology
Role:
Author
ORCID:
0000-0002-4641-5442
More by this author
Institution:
University of Oxford
Division:
Medical Sciences Division
Department:
NDM
Sub department:
Structural Biology
Role:
Author
ORCID:
0000-0002-4480-5439


More from this funder
Funding agency for:
Stuart, D
Grant:
MR/N00065X/1
More from this funder
Funding agency for:
Chiu, W
Grant:
P41GM103832
More from this funder
Funding agency for:
Duyvesteyn, H
Kotecha, A
Ginn, H
Zhang, P
Grant:
ALR00750-B500.1
101122/Z/13/Z
ALR00040
206422/Z/17/Z
090532/Z/09/Z


Publisher:
National Academy of Sciences
Journal:
Proceedings of the National Academy of Sciences More from this journal
Volume:
115
Issue:
38
Pages:
9569-9573
Publication date:
2018-08-31
Acceptance date:
2018-08-07
DOI:
EISSN:
1091-6490
ISSN:
0027-8424
Pmid:
30171169


Language:
English
Keywords:
Pubs id:
pubs:911936
UUID:
uuid:1719c15d-dc16-4567-9161-f9db50b26b22
Local pid:
pubs:911936
Source identifiers:
911936
Deposit date:
2018-09-28

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