Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia

Shaia SR Almalki,1 Mohammad Asrar Izhari,1 Hanan E Alyahyawi,1 Saleha Keder Alatawi,2 Faisal Klufah,1 Waled AM Ahmed,3 Raed Alharbi1 1Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia; 2Department of Optometry, Faculty of Applied Medica...

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Main Authors: Almalki SSR, Izhari MA, Alyahyawi HE, Alatawi SK, Klufah F, Ahmed WAM, Alharbi R
Format: Article
Language:English
Published: Dove Medical Press 2023-07-01
Series:Journal of Multidisciplinary Healthcare
Subjects:
Online Access:https://www.dovepress.com/mutational-analysis-of-circulating-omicron-sars-cov-2-lineages-in-the--peer-reviewed-fulltext-article-JMDH
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author Almalki SSR
Izhari MA
Alyahyawi HE
Alatawi SK
Klufah F
Ahmed WAM
Alharbi R
author_facet Almalki SSR
Izhari MA
Alyahyawi HE
Alatawi SK
Klufah F
Ahmed WAM
Alharbi R
author_sort Almalki SSR
collection DOAJ
description Shaia SR Almalki,1 Mohammad Asrar Izhari,1 Hanan E Alyahyawi,1 Saleha Keder Alatawi,2 Faisal Klufah,1 Waled AM Ahmed,3 Raed Alharbi1 1Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia; 2Department of Optometry, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia; 3Department of Nursing, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi ArabiaCorrespondence: Shaia SR Almalki, Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia, Tel +966-556556714, Email shalmalki@bu.edu.saPurpose: Omicron (B.1.1.529) is one of the highly mutated variants of concern of SARS-CoV-2. Lineages of Omicron bear a remarkable degree of mutations leading to enhanced pathogenicity and upward transmission trajectory. Mutating Omicron lineages may trigger a fresh COVID-19 wave at any time in any region. We aimed at the whole-genome sequencing of SARS-CoV-2 to determine variants/subvariants and significant mutations which can foster virus evolution, monitoring of disease spread, and outbreak management.Methods: We used Illumina-NovaSeq 6000 for SARS-CoV-2 genome sequencing, MEGA 10.2 and nextstrain tools for phylogeny; CD-HIT program (version 4.8.1) and MUSCLE program for clustering and alignment. At the same time, UCSF Chimera was employed for protein visualization.Results: Predominant Omicron pango lineages in Al-Baha were BA.5.2/B22 (n=4, 57%), and other lineages were BA.2.12/21L (n=1, 14.28%), BV.1/22B (n=1, 14.28%) and BA.5.2.18/22B (n=1, 14.28%). 22B nextstrain clade was predominant, while only one lineage showed 21L. BA.5.2/22B, BA.5.2/22B harbored a maximum of n=24 mutations in the spike region. Twelve crucial RBD mutations: D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, and Y505H were identified except the lineage BA.5.2/22B in which F486V mutation was not observed. Critical deletions S106 in membrane protein NSP6, E31in nucleocapsid, and L24 in spike region were observed in all the lineages. Furthermore, we identified common mutations of Omicron variants of SARS-CoV-2 in therapeutic hot spot spike region: T19I, D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H, D614G, A653V, H655Y, N679K, P681H, N764K, D796Y, Q954H, N969K, D1146D, L452R, F486V, N679K and D796Y. The effect of RBD-targeted mutations on neutralizing (NAbs) binding was considerable.Conclusion: The outcome of this first report on SARS-CoV-2 variants identification and mutation in the Al-Baha region could be used to lay down the policies to manage and impede the regional outbreak of COVID-19 effectively.Keywords: omicron, SARS-CoV-2, nextstrain clade, phylogeny, mutation, spike, RBD
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spelling doaj.art-9cdc8dcb8836456480656daa70422c122023-07-27T19:14:33ZengDove Medical PressJournal of Multidisciplinary Healthcare1178-23902023-07-01Volume 162117213685491Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi ArabiaAlmalki SSRIzhari MAAlyahyawi HEAlatawi SKKlufah FAhmed WAMAlharbi RShaia SR Almalki,1 Mohammad Asrar Izhari,1 Hanan E Alyahyawi,1 Saleha Keder Alatawi,2 Faisal Klufah,1 Waled AM Ahmed,3 Raed Alharbi1 1Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia; 2Department of Optometry, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia; 3Department of Nursing, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi ArabiaCorrespondence: Shaia SR Almalki, Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha, Saudi Arabia, Tel +966-556556714, Email shalmalki@bu.edu.saPurpose: Omicron (B.1.1.529) is one of the highly mutated variants of concern of SARS-CoV-2. Lineages of Omicron bear a remarkable degree of mutations leading to enhanced pathogenicity and upward transmission trajectory. Mutating Omicron lineages may trigger a fresh COVID-19 wave at any time in any region. We aimed at the whole-genome sequencing of SARS-CoV-2 to determine variants/subvariants and significant mutations which can foster virus evolution, monitoring of disease spread, and outbreak management.Methods: We used Illumina-NovaSeq 6000 for SARS-CoV-2 genome sequencing, MEGA 10.2 and nextstrain tools for phylogeny; CD-HIT program (version 4.8.1) and MUSCLE program for clustering and alignment. At the same time, UCSF Chimera was employed for protein visualization.Results: Predominant Omicron pango lineages in Al-Baha were BA.5.2/B22 (n=4, 57%), and other lineages were BA.2.12/21L (n=1, 14.28%), BV.1/22B (n=1, 14.28%) and BA.5.2.18/22B (n=1, 14.28%). 22B nextstrain clade was predominant, while only one lineage showed 21L. BA.5.2/22B, BA.5.2/22B harbored a maximum of n=24 mutations in the spike region. Twelve crucial RBD mutations: D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, and Y505H were identified except the lineage BA.5.2/22B in which F486V mutation was not observed. Critical deletions S106 in membrane protein NSP6, E31in nucleocapsid, and L24 in spike region were observed in all the lineages. Furthermore, we identified common mutations of Omicron variants of SARS-CoV-2 in therapeutic hot spot spike region: T19I, D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H, D614G, A653V, H655Y, N679K, P681H, N764K, D796Y, Q954H, N969K, D1146D, L452R, F486V, N679K and D796Y. The effect of RBD-targeted mutations on neutralizing (NAbs) binding was considerable.Conclusion: The outcome of this first report on SARS-CoV-2 variants identification and mutation in the Al-Baha region could be used to lay down the policies to manage and impede the regional outbreak of COVID-19 effectively.Keywords: omicron, SARS-CoV-2, nextstrain clade, phylogeny, mutation, spike, RBDhttps://www.dovepress.com/mutational-analysis-of-circulating-omicron-sars-cov-2-lineages-in-the--peer-reviewed-fulltext-article-JMDHomicronsars-cov-2nextstrain cladephylogenymutationspikerbd
spellingShingle Almalki SSR
Izhari MA
Alyahyawi HE
Alatawi SK
Klufah F
Ahmed WAM
Alharbi R
Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
Journal of Multidisciplinary Healthcare
omicron
sars-cov-2
nextstrain clade
phylogeny
mutation
spike
rbd
title Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
title_full Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
title_fullStr Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
title_full_unstemmed Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
title_short Mutational Analysis of Circulating Omicron SARS-CoV-2 Lineages in the Al-Baha Region of Saudi Arabia
title_sort mutational analysis of circulating omicron sars cov 2 lineages in the al baha region of saudi arabia
topic omicron
sars-cov-2
nextstrain clade
phylogeny
mutation
spike
rbd
url https://www.dovepress.com/mutational-analysis-of-circulating-omicron-sars-cov-2-lineages-in-the--peer-reviewed-fulltext-article-JMDH
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