Evidence map›Paper›PMID 33817625›Full record

ArticleJournal of structural biology: X2021

Experimental evaluation of super-resolution imaging and magnification choice in single-particle cryo-EM.

J Ryan Feathers, Katherine A Spoth, J Christopher Fromme

Abstract read
In one paragraph

Article in Journal of structural biology: X, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Sumner's legacy: a century of urease crystals and recent structural advances.Critical reviews in biochemistry and molecular biology
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

J Ryan FeathersDepartment of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853 USA.
Katherine A SpothCornell Center for Materials Research, Cornell University, Ithaca, NY 14853 USA.
J Christopher FrommeDepartment of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853 USA.

Funding

PREDOCTORAL TRAINING IN CELLULAR AND MOLECULAR BIOLOGYT32GM007273 · NIGMS · CORNELL UNIVERSITY ITHACA · PI BRETSCHER, ANTHONY P. · 1985 to 2019
$11.6M
GTPase Regulation of the Golgi Complex (Diversity Supplement 2023)R35GM136258 · NIGMS · CORNELL UNIVERSITY · PI J Christopher Fromme · 2020 to 2026
$4.0M
Regulation of Arf GTPase activation at the trans-Golgi networkR01GM098621 · NIGMS · CORNELL UNIVERSITY · PI FROMME, J CHRISTOPHER · 2012 to 2020
$2.9M
Regulation of Rab activation at the Golgi complexR01GM116942 · NIGMS · CORNELL UNIVERSITY · PI FROMME, J CHRISTOPHER · 2016 to 2019
$1.2M
NIGMS NIH HHS R01 GM098621NIGMS NIH HHS R01 GM116942NIGMS NIH HHS R35 GM136258NIGMS NIH HHS T32 GM007273
6 · The paper itself

Abstract

The resolution of cryo-EM reconstructions is fundamentally limited by the Nyquist frequency, which is half the sampling frequency of the detector and depends upon the magnification used. In principle, super-resolution imaging should enable reconstructions to surpass the physical Nyquist limit by increasing sampling frequency, yet there are few reports of reconstructions that do so. Here we directly examine the contribution of super-resolution information, obtained with the K3 direct electron detector using a 2-condenser microscope, to single-particle cryo-EM reconstructions surpassing the physical Nyquist limit. We also present a comparative analysis of a sample imaged at four different magnifications. This analysis demonstrates that lower magnifications can be beneficial, despite the loss of higher resolution signal, due to the increased number of particle images obtained. To highlight the potential utility of lower magnification data collection, we produced a 3.5 Å reconstruction of jack bean urease with particles from a single micrograph.

Indexed as

cryo-EMMagnificationNyquist frequencySingle-particleSuper-resolution

Identifiers

PMID33817625
PMCPMC8008246

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.