ArticleProtein expression and purification2022
Yeast-expressed recombinant SARS-CoV-2 receptor binding domain RBD203-N1 as a COVID-19 protein vaccine candidate.
Article in Protein expression and purification, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 55 citations in OpenAlex.
- Immunogenicity and safety of Biological E's CORBEVAX™ vaccine compared to COVISHIELD™ (ChAdOx1 nCoV-19) vaccine studied in a phase-3, single blind, multicentre, randomized clinical trial.Human vaccines & immunotherapeutics · 2023Trial
- An Engineered SARS-CoV-2 S1 Glycoprotein Produced in Pichia pastoris as a Candidate Vaccine Antigen.Molecular biotechnology · 2026Article
- Yeast-Based Vaccine Platforms: Applications and Key Insights from the COVID-19 Era.Biomolecules · 2026Review
- Next-generation stress-inducible Komagataella phaffii promoter variants.Microbial cell factories · 2025Article
- Safety and immunogenicity of booster doses of an XBB.1.5 RBD subunit COVID-19 vaccine among individuals aged 5-80 years in India: a phase 3, single-blind, randomised controlled trial.The Lancet regional health. Southeast Asia · 2025Article
- Development of a self-assembling multimeric Bann-RBD fusion protein in Pichia pastoris as a potential COVID-19 vaccine candidate.Scientific reports · 2025Article
- Strategy for the Construction of SARS-CoV-2 S and N Recombinant Proteins and Their Immunogenicity Evaluation.Biotech (Basel (Switzerland)) · 2025Article
- Structural and Functional Glycosylation of the Abdala COVID-19 Vaccine.Glycobiology · 2025Article
- Glycan masking in immunogen design: computational and experimental methods.Frontiers in immunology · 2025Review
- Development of a Recombinant Omicron BA.1 Subunit Vaccine Candidate in Pichia pastoris.Microbial biotechnology · 2025Article
- Review
- Leveraging Walnut Somatic Embryos as a Biomanufacturing Platform for Recombinant Proteins and Metabolites.Biotech (Basel (Switzerland)) · 2024Article
- Expression and purification of SARS-CoV-2 receptor binding domain inResearch in pharmaceutical sciences · 2024Article
- Protective RBD-dimer vaccines against SARS-CoV-2 and its variants produced in glycoengineered Pichia pastoris.PLoS pathogens · 2024Article
- Vaccine Science Diplomacy and "The Phenomenon of Man".The Linacre quarterly · 2024Article
- A Journey in Science: Molecular vaccines for global child health in troubled times of anti-science.Molecular medicine (Cambridge, Mass.) · 2024Article
- Unlocking Nature's Toolbox: glutamate-inducible recombinant protein production from the Komagatella phaffii PEPCK promoter.Microbial cell factories · 2024Article
- Optimizing immunogenicity and product presentation of a SARS-CoV-2 subunit vaccine composition: effects of delivery route, heterologous regimens with self-amplifying RNA vaccines, and lyophilization.Frontiers in immunology · 2024Article
- Choice of adjuvant and antigen composition alters the immunogenic profile of a SARS-CoV-2 subunit vaccine.Frontiers in drug delivery · 2024Article
- A Recombinant Protein XBB.1.5 RBD/Alum/CpG Vaccine Elicits High Neutralizing Antibody Titers against Omicron Subvariants of SARS-CoV-2.Vaccines · 2023Article
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Authors and funding
19 authors at 3 institutions in 1 country.
Funding
Abstract
SARS-CoV-2 protein subunit vaccines are currently being evaluated by multiple manufacturers to address the global vaccine equity gap, and need for low-cost, easy to scale, safe, and effective COVID-19 vaccines. In this paper, we report on the generation of the receptor-binding domain RBD203-N1 yeast expression construct, which produces a recombinant protein capable of eliciting a robust immune response and protection in mice against SARS-CoV-2 challenge infections. The RBD203-N1 antigen was expressed in the yeast Pichia pastoris X33. After fermentation at the 5 L scale, the protein was purified by hydrophobic interaction chromatography followed by anion exchange chromatography. The purified protein was characterized biophysically and biochemically, and after its formulation, the immunogenicity was evaluated in mice. Sera were evaluated for their efficacy using a SARS-CoV-2 pseudovirus assay. The RBD203-N1 protein was expressed with a yield of 492.9 ± 3.0 mg/L of fermentation supernatant. A two-step purification process produced a >96% pure protein with a recovery rate of 55 ± 3% (total yield of purified protein: 270.5 ± 13.2 mg/L fermentation supernatant). The protein was characterized to be a homogeneous monomer that showed a well-defined secondary structure, was thermally stable, antigenic, and when adjuvanted on Alhydrogel in the presence of CpG it was immunogenic and induced high levels of neutralizing antibodies against SARS-CoV-2 pseudovirus. The characteristics of the RBD203-N1 protein-based vaccine show that this candidate is another well suited RBD-based construct for technology transfer to manufacturing entities and feasibility of transition into the clinic to evaluate its immunogenicity and safety in humans.
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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.