Covid-19: Genetic variants of SARS-CoV-2 Hillside


A genome is the complete set of genetic information of a virus (or other living things). The name SARSCoV2 refers to a specific virus and its genetic code. The SARSCoV2 virus genome consists of approximately 30,000 letters of RNA. RNA produces 4 structural proteins, called S (spike), E (envelope), M (membrane), and N (nucleocapsid) proteins. N protein contains RNAgenome, while the S, E, and M proteins together create a viral envelope. The Spike protein is used by viruses to attach themselves to human cells and thus enter cells. When viruses of the same class develop different genomic sequences due to the mutation, they are called variants. For example, there are thousands of SARSCoV2 variants that differ from each other by at least one mutation. Most of these variants are no longer dangerous.


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