Evidence map›Paper›PMID 25004964›Full record

ArticleActa crystallographica. Section D, Biological crystallography2014

Exploiting subtle structural differences in heavy-atom derivatives for experimental phasing.

Jimin Wang, Yue Li, Yorgo Modis

Abstract read
In one paragraph

Article in Acta crystallographica. Section D, Biological crystallography, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
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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.

Jimin WangDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.
Yue LiDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.
Yorgo ModisDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.

Funding

X-RAY ANALYSIS OF PROTEIN STRUCTURE AND FUNCTIONP01GM022778 · NIGMS · YALE UNIVERSITY · PI BREAKER, RONALD R · 1985 to 2019
$26.1M
The structural basis of nucleic acid recognition by Toll-like receptorsR01GM102869 · NIGMS · YALE UNIVERSITY · PI MODIS, YORGO · 2012 to 2015
$1.1M
NIGMS NIH HHS P01 GM022778NIGMS NIH HHS R01 GM102869Wellcome Trust 101908Wellcome Trust 101908/Z/13/Z
6 · The paper itself

Abstract

Structure determination using the single isomorphous replacement (SIR) or single-wavelength anomalous diffraction (SAD) methods with weak derivatives remains very challenging. In a recent structure determination of glycoprotein E2 from bovine viral diarrhea virus, three isomorphous uranium-derivative data sets were merged to obtain partially interpretable initial experimental maps. Small differences between them were then exploited by treating them as three independent SAD data sets plus three circular pairwise SIR data sets to improve the experimental maps. Here, how such subtle structural differences were exploited for experimental phasing is described in detail. The basis for why this approach works is also provided: the effective resolution of isomorphous signals between highly isomorphous derivatives is often much higher than the effective resolution of the anomalous signals of individual derivative data sets. Hence, the new phasing approaches outlined here will be generally applicable to structure determinations involving weak derivatives.

Indexed as

Protein ConformationViral Envelope Proteinsgp53, bovine viral diarrhea virusViral Envelope Proteinsdata set mergingheavy-atom derivativesisomorphous replacementphase combinationphasingsingle anomalous dispersion (SAD)

Identifiers

PMID25004964
PMCPMC4089484

What OpenQuestion holds

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Registered trials

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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.