ArticleScientific reports2024
Structural and biochemical rationale for Beta variant protein booster vaccine broad cross-neutralization of SARS-CoV-2.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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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.
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- Variant-specific spike conformational dynamics shape memory B cell selection during recall.bioRxiv : the preprint server for biology · 2026Article
- Article
- Real-space heterogeneous reconstruction, refinement, and disentanglement of CryoEM conformational states with HetSIREN.Nature communications · 2025Article
- Accelerated vaccine process development by orthogonal protein characterization.Scientific reports · 2025Article
- Clinical development of SpikoGen®, an Advax-CpG55.2 adjuvanted recombinant spike protein vaccine.Human vaccines & immunotherapeutics · 2024Review
- Article
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Authors and funding
10 authors at 3 institutions in 3 countries.
Funding
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), responsible for the COVID-19 pandemic, uses a surface expressed trimeric spike glycoprotein for cell entry. This trimer is the primary target for neutralizing antibodies making it a key candidate for vaccine development. During the global pandemic circulating variants of concern (VOC) caused several waves of infection, severe disease, and death. The reduced efficacy of the ancestral trimer-based vaccines against emerging VOC led to the need for booster vaccines. Here we present a detailed characterization of the Sanofi Beta trimer, utilizing cryo-EM for structural elucidation. We investigate the conformational dynamics and stabilizing features using orthogonal SPR, SEC, nanoDSF, and HDX-MS techniques to better understand how this antigen elicits superior broad neutralizing antibodies as a variant booster vaccine. This structural analysis confirms the Beta trimer preference for canonical quaternary structure with two RBD in the up position and the reversible equilibrium between the canonical spike and open trimer conformations. Moreover, this report provides a better understanding of structural differences between spike antigens contributing to differential vaccine efficacy.
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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.