In the past two decades, 7 coronaviruses have infected the human population, with two major outbreaks caused by SARS-CoV and MERS-CoV in the year 2002 and 2012, respectively. Currently, the entire world is facing a pandemic of another coronavirus, SARS-CoV-2, with a high fatality rate. The spike glycoprotein of SARS-CoV-2 mediates entry of virus into the host cell and is one of the most important antigenic determinants, making it a potential candidate for a vaccine. In this study, we have computationally designed a multi-epitope vaccine using spike glycoprotein of SARS-CoV-2. The overall quality of the candidate vaccine was validated in silico and Molecular Dynamics Simulation confirmed the stabilityof the designed vaccine. Docking studies revealed stable interactions of the vaccine with Toll Like Receptors and MHC Receptors. Codon optimization was used to optimize high expression of the vaccine in E.coli K-12 strain. In silico cloning suggested efficient expression in pET-28a (+) vector. The efficiency of the candidate vaccine to trigger an effective immune response was assessed by an in silico immune simulation. The computational analyses suggest that the designed multi-epitope vaccine is structurally stable which can induce specific immune responses and thus, can be a potential vaccine candidate against SARS-CoV-2.Authors Tamalika Kar, Utkarsh Narsaria, Srijita Basak, and Debashrito Deb contributed equally to this work.
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