Evidence map›Paper›PMID 33263321›Full record

ArticleActa crystallographica. Section D, Structural biology2020

Arginine off-kilter: guanidinium is not as planar as restraints denote.

Nigel W Moriarty, Dorothee Liebschner, Dale E Tronrud, Paul D Adams

Open access · hybridAbstract read
In one paragraph

Article in Acta crystallographica. Section D, Structural biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. In situ ligand restraints from quantum-mechanical methods.Acta crystallographica. Section D, Structural biology · 2023
    Article
  7. Article
  8. Ten things I `hate' about refinement.Acta crystallographica. Section D, Structural biology · 2021
    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

4 authors at 2 institutions in 1 country.

Nigel W MoriartyMolecular Biosciences and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.ORCID 0000-0001-8857-9464
Dorothee LiebschnerMolecular Biosciences and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.ORCID 0000-0003-3921-3209
Dale E TronrudDepartment of Biochemistry and Biophysics and the Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA.
Paul D AdamsMolecular Biosciences and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.ORCID 0000-0001-9333-8219
Lawrence Berkeley National Laboratory · USOregon State University · US

Funding

PROJECT 5 - DUKE - STRUCTURE VALIDATION AND IMPROVEMENT FOR PROTEINS AND N. ACIDSP01GM063210 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI ADAMS, PAUL DAVID · 2001 to 2021
$33.5M
Improving Modeling by Learning from Details of High Accuracy Protein StructuresR01GM083136 · NIGMS · OREGON STATE UNIVERSITY · PI KARPLUS, PAUL ANDREW · 2008 to 2015
$1.7M
NIGMS NIH HHS P01 GM063210NIGMS NIH HHS R01 GM083136NIH HHS GM083136NIH HHS P01GM063210U.S. Department of Energy DE-AC02-05CH1123
6 · The paper itself

Abstract

Crystallographic refinement of macromolecular structures relies on stereochemical restraints to mitigate the typically poor data-to-parameter ratio. For proteins, each amino acid has a unique set of geometry restraints which represent stereochemical information such as bond lengths, valence angles, torsion angles, dihedrals and planes. It has been shown that the geometry in refined structures can differ significantly from that present in libraries; for example, it was recently reported that the guanidinium moiety in arginine is not symmetric. In this work, the asymmetry of the N

Indexed as

Models, MolecularProtein ConformationSoftwareArginineCrystallography, X-RayDatabases, ProteinMacromolecular SubstancesMolecular StructureArginineMacromolecular Substancesargininechemical restraintsguanidinemacromolecular refinementplanarity

Identifiers

PMID33263321
PMCPMC7709202
OpenAlexW3108901500

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.