Evidence map›Paper›PMID 32540772›Full record

ArticleiScience2020

Predicting the Effect of Chemical Factors on the pH of Crystallization Trials.

Julie Wilson, Marko Ristic, Jobie Kirkwood, David Hargreaves, Janet Newman

Abstract read
In one paragraph

Article in iScience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. A note on the appearance of PEG in macromolecular crystals.Acta crystallographica. Section F, Structural biology communications · 2026
    Article
  2. 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

5 authors.

Julie WilsonDepartment of Mathematics, University of York, York, UK. Electronic address: julie.wilson@york.ac.uk.
Marko RisticCollaborative Crystallisation Centre, CSIRO, Parkville, VIC, Australia.
Jobie KirkwoodDepartment of Chemistry, University of York, York, UK.
David HargreavesAstraZeneca, Darwin Building, Cambridge Science Park, Cambridge, UK.
Janet NewmanCollaborative Crystallisation Centre, CSIRO, Parkville, VIC, Australia. Electronic address: janet.newman@csiro.au.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In macromolecular crystallization, success is often dependent on the pH of the experiment. However, little is known about the pH of reagents used, and it is generally assumed that the pH of the experiment will closely match that of any buffering chemical in the solution. We use a large dataset of experimentally measured solution pH values to show that this assumption can be very wrong and generate a model that can be used to successfully predict the overall solution pH of a crystallization experiment. Furthermore, we investigate the time dependence of the pH of some polyethylene glycol polymers widely used in protein crystallization under different storage conditions.

Indexed as

ChemistryCrystallographyStructural Biology

Identifiers

PMID32540772
PMCPMC7298652

What OpenQuestion holds

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LicenceCC BY
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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.