Evidence map›Paper›PMID 30416256›Full record

ArticleCrystallography reviews2018

Refining the macromolecular model - achieving the best agreement with the data from X-ray diffraction experiment.

Ivan G Shabalin, Przemyslaw J Porebski, Wladek Minor

Open access · greenAbstract read
In one paragraph

Article in Crystallography reviews, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.6field-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

38 citing papers in PubMed, 53 citations in OpenAlex.

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  8. Ten rules for a structural bioinformatic analysis.PLoS computational biology · 2025
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  11. Review
  12. Neutron crystallographic refinement with REFMAC5 from the CCP4 suite.Acta crystallographica. Section D, Structural biology · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. CMM-An enhanced platform for interactive validation of metal binding sites.Protein science : a publication of the Protein Society · 2023
    Article
  19. 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

3 authors at 1 institution in 1 country.

Ivan G ShabalinDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, United States.ORCID 0000-0003-3955-9242
Przemyslaw J PorebskiDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, United States.ORCID 0000-0001-8012-5791
Wladek MinorDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, United States.ORCID 0000-0001-7075-7090
Joint Center for Structural Genomics · US

Funding

Integrated resource for reproducibility in macromolecular crystallographyU01HG008424 · NHGRI · UNIVERSITY OF VIRGINIA · PI MINOR, WLADEK · 2015 to 2017
$1.5M
X-ray data analysis in the presence of structural variability - Administrative SupplementR01GM117080 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI MINOR, WLADEK, OTWINOWSKI, ZBYSZEK · 2015 to 2018
$1.4M
Metal binding sites in macromolecular structuresR01GM117325 · NIGMS · UNIVERSITY OF VIRGINIA · PI MINOR, WLADEK · 2016 to 2019
$1.3M
Accurate measurements of phasing signal to determine macromolecular structuresR01GM118619 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI OTWINOWSKI, ZBYSZEK · 2017 to 2020
$1.3M
NHGRI NIH HHS U01 HG008424NIAID NIH HHS HHSN272201200026CNIAID NIH HHS HHSN272201700060CNIGMS NIH HHS R01 GM117080NIGMS NIH HHS R01 GM117325NIGMS NIH HHS R01 GM118619
6 · The paper itself

Abstract

Refinement of macromolecular X-ray crystal structures involves using complex software with hundreds of different settings. The complexity of underlying concepts and the sheer amount sof instructions may make it difficult for less experienced crystallographers to achieve optimal results in their refinements. This tutorial review offers guidelines for choosing the best settings for the reciprocal-space refinement of macromolecular models and provides practical tips for manual model correction. To help aspiring crystallographers navigate the process, some of the most practically important concepts of protein structure refinement are described. Among the topics covered are the use and purpose of R-free, geometrical restraints, restraints on atomic displacement parameters (ADPs), refinement weights, various parametrizations of ADPs (full anisotropic refinement and TLS), and omit maps. We also give practical tips for manual model correction in Coot, modelling of side-chains with poor or missing density, and ligand identification, fitting, and refinement.

Indexed as

ligandsprotein crystal structurerefinementreproducibilitystructural biologyX-ray crystallography

Identifiers

PMID30416256
PMCPMC6219471
OpenAlexW2890794730

What OpenQuestion holds

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LicenceTDM
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.