Evidence map›Paper›PMID 28839261›Full record

ArticleScientific reports2017

Structural basis for therapeutic inhibition of influenza A polymerase PB2 subunit.

Xiaolei Ma, Lili Xie, Charles Wartchow, Robert Warne, Yongjin Xu, Alexey Rivkin, David Tully, Steven Shia, Kyoko Uehara, Dianna M Baldwin and 5 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Aptamers: precision tools for diagnosing and treating infectious diseases.Frontiers in cellular and infection microbiology · 2024
    Review
  7. Article
  8. Article
  9. Structure and Function of Influenza Polymerase.Cold Spring Harbor perspectives in medicine · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. 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

15 authors at 2 institutions in 3 countries.

Xiaolei MaStructural and Biophysical Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA. xiaolei.ma@novartis.com.ORCID 0000-0002-5307-827X
Lili XieProtein Sciences, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Charles WartchowStructural and Biophysical Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Robert WarneVirology Lead Discovery, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Yongjin XuGlobal Discovery Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Alexey RivkinGlobal Discovery Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
David TullyGlobal Discovery Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Steven ShiaStructural and Biophysical Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Kyoko UeharaProtein Sciences, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Dianna M BaldwinVirology, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Gladys MuiruVirology, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Weidong ZhongVirology, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Isabel ZarorProtein Sciences, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Dirksen E BussiereStructural and Biophysical Chemistry, Novartis Institutes for BioMedical Research, Emeryville, CA, USA.
Vincent H J LeonardVirology, Novartis Institutes for BioMedical Research, Emeryville, CA, USA. vincent.leonard@novartis.com.
Novartis (United States) · USNovartis (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza virus uses a unique mechanism to initiate viral transcription named cap-snatching. The PB2 subunit of the viral heterotrimeric RNA polymerase binds the cap structure of cellular pre-mRNA to promote its cleavage by the PA subunit. The resulting 11-13 capped oligomer is used by the PB1 polymerase subunit to initiate transcription of viral proteins. VX-787 is an inhibitor of the influenza A virus pre-mRNA cap-binding protein PB2. This clinical stage compound was shown to bind the minimal cap-binding domain of PB2 to inhibit the cap-snatching machinery. However, the binding of this molecule in the context of an extended form of the PB2 subunit has remained elusive. Here we generated a collection of PB2 truncations to identify a PB2 protein representative of its structure in the viral heterotrimeric protein. We present the crystal structure of VX-787 bound to a PB2 construct that recapitulates VX-787's biological antiviral activity in vitro. This co-structure reveals more extensive interactions than previously identified and provides insight into the observed resistance profile, affinity, binding kinetics, and conformational rearrangements induced by VX-787.

Indexed as

Antiviral AgentsBinding SitesHumansInfluenza A virusModels, MolecularMolecular ConformationMolecular StructureProtein BindingProtein SubunitsRNA-Dependent RNA PolymeraseStructure-Activity RelationshipAntiviral AgentsProtein SubunitsRNA-Dependent RNA Polymerase

Identifiers

PMID28839261
PMCPMC5571044
OpenAlexW2746062347

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.