Evidence map›Paper›PMID 25609808›Full record

ArticleJournal of virology2015

Structure of the extracellular domain of matrix protein 2 of influenza A virus in complex with a protective monoclonal antibody.

Ki Joon Cho, Bert Schepens, Jong Hyeon Seok, Sella Kim, Kenny Roose, Ji-Hye Lee, Rodrigo Gallardo, Evelien Van Hamme, Joost Schymkowitz, Frederic Rousseau and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 67 citations in OpenAlex.

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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

13 authors at 5 institutions in 2 countries.

Ki Joon ChoDepartment of Biotechnology & Bioinformatics, College of Science & Technology, Korea University, Sejong, South Korea Inflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Bert SchepensInflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Jong Hyeon SeokDepartment of Biotechnology & Bioinformatics, College of Science & Technology, Korea University, Sejong, South Korea.
Sella KimDepartment of Biotechnology & Bioinformatics, College of Science & Technology, Korea University, Sejong, South Korea.
Kenny RooseInflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Ji-Hye LeeDepartment of Biotechnology & Bioinformatics, College of Science & Technology, Korea University, Sejong, South Korea.
Rodrigo GallardoSwitch Laboratory, VIB, Leuven, Belgium Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
Evelien Van HammeInflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Joost SchymkowitzSwitch Laboratory, VIB, Leuven, Belgium Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
Frederic RousseauSwitch Laboratory, VIB, Leuven, Belgium Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
Walter FiersInflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Xavier SaelensInflammation Research Center, VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium xavier.saelens@irc.vib-ugent.be khkim@korea.ac.kr.
Kyung Hyun KimDepartment of Biotechnology & Bioinformatics, College of Science & Technology, Korea University, Sejong, South Korea xavier.saelens@irc.vib-ugent.be khkim@korea.ac.kr.
Ghent University · BEKorea University · KRKU Leuven · BEVIB-UGent Center for Inflammation Research · BEVIB-KU Leuven Center for Brain & Disease Research · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledThe extracellular domain of influenza A virus matrix protein 2 (M2e) is conserved and is being evaluated as a quasiuniversal influenza A vaccine candidate. We describe the crystal structure at 1.6 Å resolution of M2e in complex with the Fab fragment of an M2e-specific monoclonal antibody that protects against influenza A virus challenge. This antibody binds M2 expressed on the surfaces of cells infected with influenza A virus. Five out of six complementary determining regions interact with M2e, and three highly conserved M2e residues are critical for this interaction. In this complex, M2e adopts a compact U-shaped conformation stabilized in the center by the highly conserved tryptophan residue in M2e. This is the first description of the three-dimensional structure of M2e. IMPORTANCE: M2e of influenza A is under investigation as a universal influenza A vaccine, but its three-dimensional structure is unknown. We describe the structure of M2e stabilized with an M2e-specific monoclonal antibody that recognizes natural M2. We found that the conserved tryptophan is positioned in the center of the U-shaped structure of M2e and stabilizes its conformation. The structure also explains why previously reported in vivo escape viruses, selected with a similar monoclonal antibody, carried proline residue substitutions at position 10 in M2.

Indexed as

AnimalsAntibodies, MonoclonalAntibodies, ViralCrystallography, X-RayImmunoglobulin Fab FragmentsMice, Inbred BALB CProtein BindingProtein ConformationViral Matrix ProteinsViroporin ProteinsAntibodies, MonoclonalAntibodies, ViralImmunoglobulin Fab FragmentsM2 protein, Influenza A virusViral Matrix ProteinsViroporin Proteins

Identifiers

PMID25609808
PMCPMC4403401
OpenAlexW2031080323

What OpenQuestion holds

Textmetadata
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.