ArticleJournal of virology2007
A severe acute respiratory syndrome coronavirus that lacks the E gene is attenuated in vitro and in vivo.
Article in Journal of virology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 268 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
268 citing papers in PubMed, 1 synthesis or guideline pooled it, 446 citations in OpenAlex.
- The Reassessed Potential of SARS-CoV-2 Attenuation for COVID-19 Vaccine Development-A Systematic Review.Viruses · 2022Pooled it
- Preclinical and randomized phase I studies of plitidepsin in adults hospitalized with COVID-19.Life science alliance · 2022Trial
- Structural insights into an aptainhibitor of the SARS-CoV-2 E protein using molecular docking, molecular dynamics, and biophysical analyses.Molecular therapy. Nucleic acids · 2026Article
- Bridging the antiviral gap: A BAC-based non-infectious SARS-CoV-2 replicon reveals potent antisense gapmers.Molecular therapy. Nucleic acids · 2026Article
- Review
- Impact of M and E protein mutations in SARS-CoV-2 Omicron variants on reduced antibody binding and increased structural stability: a bioinformatics study (2021-2023).BMC genomics · 2026Article
- Targeting SARS-CoV-2 Structural and Accessory Proteins: Emerging Opportunities for Small-Molecule Coronavirus Antivirals.Pharmaceutics · 2026Review
- PEDV Structural Proteins with Emphasis on M Protein as an Immunomodulatory Factor in Porcine Innate Immunity.Life (Basel, Switzerland) · 2025Review
- SARS-CoV-2-derived RNA replicons as safe and effective vaccines.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- The SARS-CoV-2 envelope PDZ binding motif acts as a virulence factor disrupting host's epithelial cell-cell junctions.Cellular & molecular biology letters · 2025Article
- Advances in Viroporin Function and Structure: A Comparative Analysis of Alphavirus 6K with Well-Characterized Viroporins.Viruses · 2025Review
- Subcellular localization of SARS-CoV-2 E and 3a proteins along the secretory pathway.Journal of molecular histology · 2025Article
- Deciphering Viral Replication Dynamics in Feline Infectious Peritonitis: A Quantitative Approach.Viruses · 2025Article
- Swine Acute Diarrhea Syndrome Coronavirus: An Overview of Virus Structure and Virus-Host Interactions.Animals : an open access journal from MDPI · 2025Review
- Advancements in Structural Basis of Covalent Inhibitors Targeting SARS-CoV-2 Essential Proteins.Current medicinal chemistry · 2025Review
- Advancements in the application and research of baculovirus vector vaccines for respiratory diseases in human.Frontiers in microbiology · 2025Review
- COMPARISON OF ABBOTT REAL TIME SARS-COV-2 ASSAY AND LIFERIVER NOVEL CORONAVIRUS REAL TIME MULTIPLEX KIT FOR THE RT-PCR BASED DETECTION OF SARS-COV-2 FROM NASOPHARYNGEAL SWABS.Acta clinica Croatica · 2024Article
- Membrane Activity and Viroporin Assembly for the SARS-CoV-2 E Protein Are Regulated by Cholesterol.Biomolecules · 2024Article
- In silico approach for the identification of tRNA-derived small non-coding RNAs in SARS-CoV infection.Journal of applied genetics · 2024Article
208 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
Abstract
A deletion mutant of severe acute respiratory syndrome coronavirus (SARS-CoV) has been engineered by deleting the structural E gene in an infectious cDNA clone that was constructed as a bacterial artificial chromosome (BAC). The recombinant virus lacking the E gene (rSARS-CoV-DeltaE) was rescued in Vero E6 cells. The recovered deletion mutant grew in Vero E6, Huh-7, and CaCo-2 cells to titers 20-, 200-, and 200-fold lower than the recombinant wild-type virus, respectively, indicating that although the E protein has an effect on growth, it is not essential for virus replication. No differences in virion stability under a wide range of pH and temperature were detected between the deletion mutant and recombinant wild-type viruses. Although both viruses showed the same morphology by electron microscopy, the process of morphogenesis seemed to be less efficient with the defective virus than with the recombinant wild-type one. The rSARS-CoV-DeltaE virus replicated to titers 100- to 1,000-fold lower than the recombinant wild-type virus in the upper and lower respiratory tract of hamsters, and the lower viral load was accompanied by less inflammation in the lungs of hamsters infected with rSARS-CoV-DeltaE virus than with the recombinant wild-type virus. Therefore, the SARS-CoV that lacks the E gene is attenuated in hamsters, might be a safer research tool, and may be a good candidate for the development of a live attenuated SARS-CoV vaccine.
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What OpenQuestion holds
Registered trials
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.