Evidence map›Paper›PMID 34202053›Full record

ArticleInternational journal of molecular sciences2021

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Sohini Chakraborti, Kaushik Hatti, Narayanaswamy Srinivasan

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 40% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Errors in structural biology are not the exception.Acta crystallographica. Section D, Structural biology · 2023
    Article
  4. 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 2 institutions in 2 countries.

Sohini ChakrabortiMolecular Biophysics Unit, Indian Institute of Science, Bengaluru 560012, Karnataka, India.ORCID 0000-0002-4591-2658
Kaushik HattiWellcome Centre for Anti-Infectives Research, Drug Discovery Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee DDI 5EH, UK.
Narayanaswamy SrinivasanMolecular Biophysics Unit, Indian Institute of Science, Bengaluru 560012, Karnataka, India.ORCID 0000-0002-6566-6239
Indian Institute of Science Bangalore · INUniversity of Dundee · GB

Funding

DBT IISc-DBT partnership program, Bioinformatics and Computational Biology centreDST FIST, J.C. Bose National Fellowship, INSPIRE FellowshipMHRD MHRDUGC Centre for Advanced Studies
6 · The paper itself

Abstract

Our understanding of the structure-function relationships of biomolecules and thereby applying it to drug discovery programs are substantially dependent on the availability of the structural information of ligand-protein complexes. However, the correct interpretation of the electron density of a small molecule bound to a crystal structure of a macromolecule is not trivial. Our analysis involving quality assessment of ~0.28 million small molecule-protein binding site pairs derived from crystal structures corresponding to ~66,000 PDB entries indicates that the majority (65%) of the pairs might need little (54%) or no (11%) attention. Out of the remaining 35% of pairs that need attention, 11% of the pairs (including structures with high/moderate resolution) pose serious concerns. Unfortunately, most users of crystal structures lack the training to evaluate the quality of a crystal structure against its experimental data and, in general, rely on the resolution as a 'gold standard' quality metric. Our work aims to sensitize the non-crystallographers that resolution, which is a global quality metric, need not be an accurate indicator of local structural quality. In this article, we demonstrate the use of several freely available tools that quantify local structural quality and are easy to use from a non-crystallographer's perspective. We further propose a few solutions for consideration by the scientific community to promote quality research in structural biology and applied areas.

Indexed as

Binding SitesLigandsModels, MolecularCrystallography, X-RayMacromolecular SubstancesMolecular ConformationProtein BindingProteinsLigandsMacromolecular SubstancesProteinsbinding poseelectron density mapligand–protein crystal structuresPDBquality assessmentresolution

Identifiers

PMID34202053
PMCPMC8268033
OpenAlexW3175450552

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.