Evidence map›Paper›PMID 34981768›Full record

ArticleActa crystallographica. Section D, Structural biology2022

A case for glycerol as an acceptable additive for single-particle cryoEM samples.

Benjamin Basanta, Marscha M Hirschi, Danielle A Grotjahn, Gabriel C Lander

Abstract read
In one paragraph

Article in Acta crystallographica. Section D, Structural biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. CryoSift: an accessible and automated CNN-driven tool for cryo-EM 2D class selection.Acta crystallographica. Section F, Structural biology communications · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Cryo-EM sample preparation for high-resolution structure studies.Acta crystallographica. Section F, Structural biology communications · 2024
    Article
  11. Article
  12. 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

4 authors.

Benjamin BasantaDepartment of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA 92037, USA.
Marscha M HirschiDepartment of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA 92037, USA.
Danielle A GrotjahnDepartment of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA 92037, USA.
Gabriel C LanderDepartment of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA 92037, USA.

Funding

COMPUTING AND DATA STORAGE CLUSTER FOR ELECTRON MICROSCOPYS10OD021634 · OD · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2016 to 2016
$531k
Extending the limits of cryo-EM to better understand TTR misfolding and aggregationR21AG067594 · NIA · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2020 to 2021
$488k
NIA NIH HHS R21 AG067594NIH HHS R01 GM14305NIH HHS R21 AG067594NIH HHS S10 OD021634
6 · The paper itself

Abstract

Buffer-composition and sample-preparation guidelines for cryo-electron microscopy are geared towards maximizing imaging contrast and reducing electron-beam-induced motion. These pursuits often involve the minimization or the complete removal of additives that are commonly used to facilitate proper protein folding and minimize aggregation. Among these admonished additives is glycerol, a widely used osmolyte that aids protein stability. In this work, it is shown that the inclusion of glycerol does not preclude high-resolution structure determination by cryoEM, as demonstrated by an ∼2.3 Å resolution reconstruction of mouse apoferritin (∼500 kDa) and an ∼3.3 Å resolution reconstruction of rabbit muscle aldolase (∼160 kDa) in the presence of 20%(v/v) glycerol. While it was found that generating thin ice that is amenable to high-resolution imaging requires long blot times, the addition of glycerol did not result in increased beam-induced motion or an inability to pick particles. Overall, these findings indicate that glycerol should not be discounted as a cryoEM sample-buffer additive, particularly for large, fragile complexes that are prone to disassembly or aggregation upon its removal.

Indexed as

AnimalsApoferritinsBuffersCryoelectron MicroscopyFructose-Bisphosphate AldolaseGlycerolMiceModels, MolecularProtein FoldingRabbitsApoferritinsBuffersFructose-Bisphosphate AldolaseGlycerolaldolaseapoferritincryoEMglycerolsample buffer

Identifiers

PMID34981768
PMCPMC8725161

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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.