Evidence map›Paper›PMID 31141524›Full record

ArticlePloS one2019

Empirical ways to identify novel Bedaquiline resistance mutations in AtpE.

Malancha Karmakar, Carlos H M Rodrigues, Kathryn E Holt, Sarah J Dunstan, Justin Denholm, David B Ascher

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 2% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
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  13. Identification ofInfection and drug resistance · 2024
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  19. Using Graph-Based Signatures to Guide Rational Antibody Engineering.Methods in molecular biology (Clifton, N.J.) · 2023
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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

6 authors at 2 institutions in 2 countries.

Malancha KarmakarVictorian Tuberculosis Program, Melbourne Health, Victoria, Australia.ORCID 0000-0003-0303-2895
Carlos H M RodriguesDepartment of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, Victoria, Australia.ORCID 0000-0002-4420-6401
Kathryn E HoltDepartment of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, Victoria, Australia.ORCID 0000-0003-3949-2471
Sarah J DunstanThe Peter Doherty Institute for Infection and Immunity, University of Melbourne, Victoria, Australia.ORCID 0000-0001-7873-933X
Justin DenholmVictorian Tuberculosis Program, Melbourne Health, Victoria, Australia.
David B AscherDepartment of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, Victoria, Australia.
Baker Heart and Diabetes Institute · AUThe University of Melbourne · AU

Funding

Medical Research Council MR/M026302/1
6 · The paper itself

Abstract

Clinical resistance against Bedaquiline, the first new anti-tuberculosis compound with a novel mechanism of action in over 40 years, has already been detected in Mycobacterium tuberculosis. As a new drug, however, there is currently insufficient clinical data to facilitate reliable and timely identification of genomic determinants of resistance. Here we investigate the structural basis for M. tuberculosis associated bedaquiline resistance in the drug target, AtpE. Together with the 9 previously identified resistance-associated variants in AtpE, 54 non-resistance-associated mutations were identified through comparisons of bedaquiline susceptibility across 23 different mycobacterial species. Computational analysis of the structural and functional consequences of these variants revealed that resistance associated variants were mainly localized at the drug binding site, disrupting key interactions with bedaquiline leading to reduced binding affinity. This was used to train a supervised predictive algorithm, which accurately identified likely resistance mutations (93.3% accuracy). Application of this model to circulating variants present in the Asia-Pacific region suggests that current circulating variants are likely to be susceptible to bedaquiline. We have made this model freely available through a user-friendly web interface called SUSPECT-BDQ, StrUctural Susceptibility PrEdiCTion for bedaquiline (http://biosig.unimelb.edu.au/suspect_bdq/). This tool could be useful for the rapid characterization of novel clinical variants, to help guide the effective use of bedaquiline, and to minimize the spread of clinical resistance.

Indexed as

Mutation, MissenseAlgorithmsAmino Acid SequenceAntitubercular AgentsBacterial ProteinsDiarylquinolinesDrug Resistance, BacterialHumansMachine LearningMycobacterium tuberculosisSequence HomologyTuberculosisAntitubercular AgentsBacterial ProteinsbedaquilineDiarylquinolines

Identifiers

PMID31141524
PMCPMC6541270
OpenAlexW2947097964

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.