Chromatographic characterization of the fusion protein SARS-CoV-2 S protein (RBD)-hFc
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Laura García
,
Ingrid Ruíz
Abstract
At the Center of Molecular Immunology (Havana, Cuba), the fusion protein SARS-CoV-2 S protein (RBD)-hFc was synthesized linking the receptor-binding domain (RBD) of the SARS-CoV-2 virus and the crystallizable fragment of a human immunoglobulin. This fusion protein was used in the construction of a diagnostic device for COVID-19 called UMELISA SARS-CoV-2-IgG. Given the relevance of this protein, the characterization of three batches (A1, A2 and A3) was carried out. The molecular weight of the protein was determined to be 120 kDa, using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Its isoelectric point was estimated between 8.3 and 9 by isoelectric focusing. The molecular integrity was evaluated by size exclusion liquid chromatography and SDS-PAGE after one year of the production of the protein; the presence of aggregates and fragments was detected. Batches A1 and A2 have a purity percentage higher than 95% and they can be used for the construction of new diagnostic devices.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Artikel in diesem Heft
- Frontmatter
- Reviews
- Anticancer properties of arylchromenes and arylchromans: an overview
- Solid state lithium ion conductors for lithium batteries
- Performance and kinetics of a fluidized bed anaerobic reactor treating distillery effluent
- Use of biochemical markers for diabetes prevention in the new decade
- Antibreast cancer activities of phytochemicals from Anonna muricata using computer-aided drug design (CADD) approach
- Alkaline-earth metal(II) complexes of salinomycin – spectral properties and antibacterial activity
- Use of heterogeneous catalysis in sustainable biofuel production
- Antibacterial, antioxidant and cytotoxic activities of the stem bark of Archidendron jiringa (Jack) I.C. Nielsen
- A review of sludge production in South Africa municipal wastewater treatment plants, analysis of handling cost and potential minimization methods
- Cu-Catalysed tandem reactions for building poly hetero atom heterocycles-green chemistry tool
- Optimizing Cr(VI) adsorption parameters on magnetite (Fe3O4) and manganese doped magnetite (MnxFe(3-x)O4) nanoparticles
- Fabaceae: a significant flavonoid source for plant and human health
- A novel application of synthesised based squarylium dyes on nylon 6, and silk woven fabrics
- Chromatographic characterization of the fusion protein SARS-CoV-2 S protein (RBD)-hFc
- Ethnopharmacology, phytochemistry and a new chemotaxonomic marker in Oldenlandia affinis (Roem. & Schult.) DC. Rubiaceae
- Extraction, isolation and characterization of secondary metabolites in the leaves of Morinda lucida from Oshiegbe in Ebonyi State
- Lead optimisation efforts on a molecular prototype of the immunomodulatory parasitic protein ES-62
- Catalytic applications of graphene oxide towards the synthesis of bioactive scaffolds through the formation of carbon–carbon and carbon–heteroatom bonds
- Synthesis, characterization, DFT and molecular docking studies of acetone O-((2,5-dichlorophenyl)sulfonyl) oxime
- Design of membrane systems
- Conceptual design and cost-efficient environmentally Benign synthesis of beta-lactams
- Synthesis and characterization of alkaloid derived hydrazones and their metal (II) complexes
- The spontaneity of chemical reactions: challenges with handling the concept and its implications
- Copper nanoparticles catalyzed carbon–heteroatom bond formation and synthesis of related heterocycles by greener procedures
- Tellurium in carbohydrate synthesis
- Conformational preferences and intramolecular hydrogen bonding patterns of tetraflavaspidic acid BBBB – a tetrameric acylphloroglucinol
- Phytochemical and antioxidant studies of Hibiscus Cannabinus seed oil
- Polyaniline mediated heterogeneous catalysis in the preparation of heterocyclic derivatives through carbon–heteroatom bond formations
- A comparison of two digestion methods and heavy metals determination in sediments
- Synthesis, properties and catalysis of quantum dots in C–C and C-heteroatom bond formations
- Recyclable magnetically retrievable nanocatalysts for C–heteroatom bond formation reactions
- Small molecules as next generation biofilm inhibitors and anti-infective agents
- Toxicity of tellurium and its compounds
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