Evidence map›Paper›PMID 34342282›Full record

ArticleActa crystallographica. Section D, Structural biology2021

Exploring ligand dynamics in protein crystal structures with ensemble refinement.

Octav Caldararu, Vilhelm Ekberg, Derek T Logan, Esko Oksanen, Ulf Ryde

Open access · hybridAbstract read
In one paragraph

Article in Acta crystallographica. Section D, Structural biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 47% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. If you cannot see it, is it still there?Journal of applied crystallography · 2025
    Article
  5. Article
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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

5 authors at 2 institutions in 1 country.

Octav CaldararuDepartment of Theoretical Chemistry, Lund University, Chemical Centre, PO Box 124, SE-221 00 Lund, Sweden.ORCID 0000-0002-5900-6568
Vilhelm EkbergDepartment of Theoretical Chemistry, Lund University, Chemical Centre, PO Box 124, SE-221 00 Lund, Sweden.ORCID 0000-0002-2813-3564
Derek T LoganBiochemistry and Structural Biology, Centre for Molecular Protein Science, Department of Chemistry, Lund University, Chemical Centre, PO Box 124, SE-221 00 Lund, Sweden.ORCID 0000-0002-0098-8560
Esko OksanenEuropean Spallation Source Consortium ESS ERIC, PO Box 176, SE-221 00 Lund, Sweden.ORCID 0000-0002-1841-4813
Ulf RydeDepartment of Theoretical Chemistry, Lund University, Chemical Centre, PO Box 124, SE-221 00 Lund, Sweden.ORCID 0000-0001-7653-8489
Lund University · SEEuropean Spallation Source · SE

Funding

Knut och Alice Wallenbergs Stiftelse 2013.0022Vetenskapsrådet 2018-05003Vetenskapsrådet 2018-05973
6 · The paper itself

Abstract

Understanding the dynamics of ligands bound to proteins is an important task in medicinal chemistry and drug design. However, the dominant technique for determining protein-ligand structures, X-ray crystallography, does not fully account for dynamics and cannot accurately describe the movements of ligands in protein binding sites. In this article, an alternative method, ensemble refinement, is used on six protein-ligand complexes with the aim of understanding the conformational diversity of ligands in protein crystal structures. The results show that ensemble refinement sometimes indicates that the flexibility of parts of the ligand and some protein side chains is larger than that which can be described by a single conformation and atomic displacement parameters. However, since the electron-density maps are comparable and R

Indexed as

Crystallography, X-RayMolecular Dynamics SimulationProtein ConformationProteinsProteinsensemble refinementligand dynamicsmolecular-dynamics simulationsqFit-ligandX-ray crystal structures

Identifiers

PMID34342282
PMCPMC8329865
OpenAlexW3192587201

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.