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Basic Characteristics of Mutations
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Mutation Site
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Y54C |
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Mutation Site Sentence
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3CLpro inhibitors-related mutation patterns were recorded as G15C/G/R/S, T21I/N/S/T, D48D/H/N/Y, M49M/I/T, L50C/F/L/I/S/V/Y, Y54C, F140F/I/L/V, G143C/G/R/S, S144L, C160C/F/S/Y, M165M/K/R/T, E166K/Q, L167L/F, H172R, A173T/V, V186A/D/G/V, R188S, Q189K, T190I, A191A/E/G/V, Q192K/L/P/R, A194A/P/S/T, P252L, T304I/N/S/T, and F305F/L in the current study. |
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Mutation Level
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Amino acid level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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3CLpro |
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Standardized Encoding Gene
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ORF1a
|
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Genotype/Subtype
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Omicron(BA.2.58;BA.5.2.1) |
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Viral Reference
|
-
|
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Functional Impact and Mechanisms
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Disease
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COVID-19
|
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Immune
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- |
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Target Gene
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-
|
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Clinical and Epidemiological Correlations
|
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Clinical Information
|
- |
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Treatment
|
3CLpro inhibitors |
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Location
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Turkish |
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Literature Information
|
|
PMID
|
37243152
|
|
Title
|
Molecular Epidemiology of SARS-CoV-2 Omicron Sub-Lineages Isolated from Turkish Patients Infected with COVID-19
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Author
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Sayan M,Arikan A,Sanlidag E
|
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Journal
|
Viruses
|
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Journal Info
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2023 Apr 27;15(5):1066
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Abstract
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Early detection and characterization of new variants and their impacts enable improved genomic surveillance. This study aims to evaluate the subvariant distribution of Omicron strains isolated from Turkish cases to determine the rate of antiviral resistance of RdRp and 3CLpro inhibitors. The Stanford University Coronavirus Antiviral & Resistance Database online tool was used for variant analyses of the strains uploaded to GISAID as Omicron (n = 20.959) between January 2021 and February,2023. Out of 288 different Omicron subvariants, B.1, BA.1, BA.2, BA.4, BE.1, BF.1, BM.1, BN.1, BQ.1, CK.1, CL.1, and XBB.1 were the main determined subvariants, and BA.1 (34.7%), BA.2 (30.8%), and BA.5 (23.6%) were reported most frequently. RdRp and 3CLPro-related resistance mutations were determined in n = 150, 0.72% sequences, while the rates of resistance against RdRp and 3CLpro inhibitors were reported at 0.1% and 0.6%, respectively. Mutations that were previously associated with a reduced susceptibility to remdesivir, nirmatrelvir/r, and ensitrelvir were most frequently detected in BA.2 (51.3%). The mutations detected at the highest rate were A449A/D/G/V (10.5%), T21I (10%), and L50L/F/I/V (6%). Our findings suggest that continuous monitoring of variants, due to the diversity of Omicron lineages, is necessary for global risk assessment. Although drug-resistant mutations do not pose a threat, the tracking of drug mutations will be necessary due to variant heterogenicity.
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Sequence Data
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-
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|
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