Omicron Variant | Common Cold | Ins214EPE Mutation
Автор: Hussain Biology
Загружено: 2021-12-11
Просмотров: 9382
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In this video we have discussed about the Ins214epe mutation.
The EPE sequence is found in the common cold virus like Hcov229e.
The Omicron variant ( is a variant of SARS-CoV-2, the virus that causes COVID-19.On 26 November 2021, the WHO designated it as a variant of concern and named it after omicron, the fifteenth letter in the Greek alphabet.
The variant has an unusually large number of mutations, several of which are novel,and a significant number of which affect the spike protein targeted by most COVID-19 vaccines at the time of discovering the Omicron variant. This level of variation has led to concerns regarding its transmissibility, immune system evasion, and vaccine resistance. As a result, the variant was quickly designated as being "of concern", and travel restrictions were introduced by several countries in an attempt to slow its international spread.
The variant has a large number of mutations, some of which have concerned scientists.The Omicron variant has a total of 60 mutations compared to the original Wuhan variant: 50 nonsynonymous mutations, 8 synonymous mutations, and 2 non-coding mutations.Thirty-two mutations affect the spike protein, the main antigenic target of antibodies generated by infections and of many vaccines widely administered. Many of those mutations had not been observed in other strains. The variant is characterised by 30 amino acid changes, three small deletions, and one small insertion in the spike protein compared with the original virus, of which 15 are located in the receptor binding domain . It also carries a number of changes and deletions in other genomic regions. Additionally, the variant has three mutations at the furin cleavage site. The furin cleavage site increases SARS-CoV-2 infectivity
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