Evidence map›Paper›PMID 26916998›Full record

ArticleScientific reports2016

Using mutagenesis to explore conserved residues in the RNA-binding groove of influenza A virus nucleoprotein for antiviral drug development.

Chia-Lin Liu, Hui-Chen Hung, Shou-Chen Lo, Ching-Hui Chiang, I-Jung Chen, John T-A Hsu, Ming-Hon Hou

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 31 citations in OpenAlex.

  1. Progress of Influenza Viruses and Inhibitors.Current medicinal chemistry · 2025
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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

7 authors at 2 institutions in 1 country.

Chia-Lin LiuNational Chung Hsing University, Department of Life Science, Taichung, 40227, Taiwan.
Hui-Chen HungNational Health Research Institutes, Institute of Biotechnology and Pharmaceutical Research, Miaoli, 35053, Taiwan.
Shou-Chen LoNational Chung Hsing University, Institute of Genomics and Bioinformatics, Taichung, 40227, Taiwan.
Ching-Hui ChiangNational Chung Hsing University, Department of Life Science, Taichung, 40227, Taiwan.
I-Jung ChenNational Health Research Institutes, Institute of Biotechnology and Pharmaceutical Research, Miaoli, 35053, Taiwan.
John T-A HsuNational Health Research Institutes, Institute of Biotechnology and Pharmaceutical Research, Miaoli, 35053, Taiwan.
Ming-Hon HouNational Chung Hsing University, Department of Life Science, Taichung, 40227, Taiwan.
National Chung Hsing University · TWNational Health Research Institutes · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleoprotein (NP) is the most abundant type of RNA-binding viral protein in influenza A virus-infected cells and is necessary for viral RNA transcription and replication. Recent studies demonstrated that influenza NP is a valid target for antiviral drug development. The surface of the groove, covered with numerous conserved residues between the head and body domains of influenza A NP, plays a crucial role in RNA binding. To explore the mechanism by which NP binds RNA, we performed a series of site-directed mutagenesis in the RNA-binding groove, followed by surface plasmon resonance (SPR), to characterize the interactions between RNA and NP. Furthermore, a role of Y148 in NP stability and NP-RNA binding was evaluated. The aromatic residue of Y148 was found to stack with a nucleotide base. By interrupting the stacking interaction between Y148 and an RNA base, we identified an influenza virus NP inhibitor, (E, E)-1,7-bis(4-hydroxy-3-methoxyphenyl) -1,6-heptadiene-3,5-dione; this inhibitor reduced the NP's RNA-binding affinity and hindered viral replication. Our findings will be useful for the development of new drugs that disrupt the interaction between RNA and viral NP in the influenza virus.

Indexed as

A549 CellsAntiviral AgentsCurcuminHumansInfluenza A virusMutagenesis, Site-DirectedNucleocapsid ProteinsProtein Structure, TertiaryRNARNA-Binding MotifsRNA-Binding ProteinsSequence AlignmentViral Core Proteins1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dioneAntiviral AgentsCurcuminNP protein, Influenza A virusNucleocapsid ProteinsRNARNA-Binding ProteinsViral Core Proteins

Identifiers

PMID26916998
PMCPMC4768256
OpenAlexW2417689611

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.