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2015 ; 161
(3
): 438-449
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A primer to single-particle cryo-electron microscopy
#MMPMID25910204
Cheng Y
; Grigorieff N
; Penczek PA
; Walz T
Cell
2015[Apr]; 161
(3
): 438-449
PMID25910204
show ga
Cryo-electron microscopy (cryo-EM) of single-particle specimens is used to
determine the structure of proteins and macromolecular complexes without the need
for crystals. Recent advances in detector technology and software algorithms now
allow images of unprecedented quality to be recorded and structures to be
determined at near-atomic resolution. However, compared with X-ray
crystallography, cryo-EM is a young technique with distinct challenges. This
primer explains the different steps and considerations involved in structure
determination by single-particle cryo-EM to provide an overview for scientists
wishing to understand more about this technique and the interpretation of data
obtained with it, as well as a starting guide for new practitioners.