Evidence map›Paper›PMID 26404138›Full record

ArticleScientific reports2015

The heptad repeat region is a major selection target in MERS-CoV and related coronaviruses.

Diego Forni, Giulia Filippi, Rachele Cagliani, Luca De Gioia, Uberto Pozzoli, Nasser Al-Daghri, Mario Clerici, Manuela Sironi

Abstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
–field-weighted citation impact
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

44 citing papers in PubMed.

  1. Article
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  3. Review
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  6. Article
  7. AnHeliyon · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. MERS-CoV: epidemiology, molecular dynamics, therapeutics, and future challenges.Annals of clinical microbiology and antimicrobials · 2021
    Review
  17. Review
  18. Article
  19. 1-Phenyl-RSC advances · 2020
    Article
  20. 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

8 authors.

Diego ForniScientific Institute IRCCS E. MEDEA, Bioinformatics, 23842 Bosisio Parini, Italy.
Giulia FilippiDepartment of Biotechnology and Biosciences, University of Milan-Bicocca, 20126 Milan, Italy.
Rachele CaglianiScientific Institute IRCCS E. MEDEA, Bioinformatics, 23842 Bosisio Parini, Italy.
Luca De GioiaDepartment of Biotechnology and Biosciences, University of Milan-Bicocca, 20126 Milan, Italy.
Uberto PozzoliScientific Institute IRCCS E. MEDEA, Bioinformatics, 23842 Bosisio Parini, Italy.
Nasser Al-DaghriBiomarkers research program, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia (KSA).
Mario ClericiDepartment of Physiopathology and Transplantation, University of Milan, 20090 Milan, Italy.
Manuela SironiScientific Institute IRCCS E. MEDEA, Bioinformatics, 23842 Bosisio Parini, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Middle East respiratory syndrome coronavirus (MERS-CoV) originated in bats and spread to humans via zoonotic transmission from camels. We analyzed the evolution of the spike (S) gene in betacoronaviruses (betaCoVs) isolated from different mammals, in bat coronavirus populations, as well as in MERS-CoV strains from the current outbreak. Results indicated several positively selected sites located in the region comprising the two heptad repeats (HR1 and HR2) and their linker. Two sites (R652 and V1060) were positively selected in the betaCoVs phylogeny and correspond to mutations associated with expanded host range in other coronaviruses. During the most recent evolution of MERS-CoV, adaptive mutations in the HR1 (Q/R/H1020) arose in camels or in a previous host and spread to humans. We determined that different residues at position 1020 establish distinct inter- and intra-helical interactions and affect the stability of the six-helix bundle formed by the HRs. A similar effect on stability was observed for a nearby mutation (T1015N) that increases MERS-CoV infection efficiency in vitro. Data herein indicate that the heptad repeat region was a major target of adaptive evolution in MERS-CoV-related viruses; these results are relevant for the design of fusion inhibitor peptides with antiviral function.

Indexed as

Evolution, MolecularSelection, GeneticAmino Acid SequenceAnimalsCoronavirusGenes, ViralGenetic VariationGenotypeHumansMiddle East Respiratory Syndrome CoronavirusMolecular Sequence DataPhylogenyRecombination, GeneticRepetitive Sequences, Nucleic AcidSequence Alignment

Identifiers

PMID26404138
PMCPMC4585914

What OpenQuestion holds

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Registered trials

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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.