Evidence map›Paper›PMID 19798409›Full record

ArticleJournal of applied crystallography2009

Slow cooling of protein crystals.

Matthew Warkentin, Robert E Thorne

Open access · bronzeAbstract read
In one paragraph

Article in Journal of applied crystallography, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
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

22 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Ice in biomolecular cryocrystallography.Acta crystallographica. Section D, Structural biology · 2021
    Article
  5. Solvent flows, conformation changes and lattice reordering in a cold protein crystal.Acta crystallographica. Section D, Structural biology · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Practical macromolecular cryocrystallography.Acta crystallographica. Section F, Structural biology communications · 2015
    Review
  13. Article
  14. Approaches to automated protein crystal harvesting.Acta crystallographica. Section F, Structural biology communications · 2014
    Article
  15. Article
  16. Article
  17. Spatial distribution of radiation damage to crystalline proteins at 25-300 K.Acta crystallographica. Section D, Biological crystallography · 2012
    Article
  18. Global radiation damage at 300 and 260 K with dose rates approaching 1 MGy s⁻¹.Acta crystallographica. Section D, Biological crystallography · 2012
    Article
  19. Dark progression reveals slow timescales for radiation damage between T = 180 and 240 K.Acta crystallographica. Section D, Biological crystallography · 2011
    Article
  20. Article
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

2 authors at 1 institution in 1 country.

Matthew WarkentinPhysics Department, Cornell University, Ithaca, NY 14853, USA.
Robert E Thorne
Cornell University · US

Funding

ZINC FINGER-DNA COMPLEXP41RR001646 · NCRR · CORNELL UNIVERSITY ITHACA · PI CINGOLANI, GINO · 1985 to 2011
$23.8M
New Approaches to Radiation Damage and CryoprotectionR01GM065981 · NIGMS · CORNELL UNIVERSITY ITHACA · PI THORNE, ROBERT E. · 2002 to 2010
$1.8M
NCRR NIH HHS P41 RR001646NIGMS NIH HHS DMR-0225180NIGMS NIH HHS R01 GM065981
6 · The paper itself

Abstract

Cryoprotectant-free thaumatin crystals have been cooled from 300 to 100 K at a rate of 0.1 K s(-1) - 10(3)-10(4) times slower than in conventional flash cooling - while continuously collecting X-ray diffraction data, so as to follow the evolution of protein lattice and solvent properties during cooling. Diffraction patterns show no evidence of crystalline ice at any temperature. This indicates that the lattice of protein molecules is itself an excellent cryoprotectant, and with sodium potassium tartrate incorporated from the 1.5 M mother liquor ice nucleation rates are at least as low as in a 70% glycerol solution. Crystal quality during slow cooling remains high, with an average mosaicity at 100 K of 0.2 degrees . Most of the mosaicity increase occurs above approximately 200 K, where the solvent is still liquid, and is concurrent with an anisotropic contraction of the unit cell. Near 180 K a crossover to solid-like solvent behavior occurs, and on further cooling there is no additional degradation of crystal order. The variation of B factor with temperature shows clear evidence of a protein dynamical transition near 210 K, and at lower temperatures the slope dB/dT is a factor of 3-6 smaller than has been reported for any other protein. These results establish the feasibility of fully temperature controlled studies of protein structure and dynamics between 300 and 100 K.

Identifiers

PMID19798409
PMCPMC2746722
OpenAlexW1973976575

What OpenQuestion holds

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Read underepoch 390

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.