Genetic diversity of bat coronaviruses and comparative genetic analysis of MERS‐related coronaviruses in South Korea

Bats have been identified as a natural reservoir of several potentially zoonotic viruses, including Lyssavirus, Ebola virus, Marburg virus, Hendra virus, Nipah virus, as well as severe acute respiratory syndrome and Middle East respiratory syndrome coronavirus (CoV). Here, we performed a molecular e...

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Veröffentlicht in:Transboundary and emerging diseases 2022-07, Vol.69 (4), p.e463-e472
Hauptverfasser: Lee, Sook‐Young, Chung, Chul‐Un, Park, Jun Soo, Kim, Yoon Ji, Kim, Young‐Sik, Na, Eun‐Jee, Kim, YongKwan, Oem, Jae‐Ku
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container_end_page e472
container_issue 4
container_start_page e463
container_title Transboundary and emerging diseases
container_volume 69
creator Lee, Sook‐Young
Chung, Chul‐Un
Park, Jun Soo
Kim, Yoon Ji
Kim, Young‐Sik
Na, Eun‐Jee
Kim, YongKwan
Oem, Jae‐Ku
description Bats have been identified as a natural reservoir of several potentially zoonotic viruses, including Lyssavirus, Ebola virus, Marburg virus, Hendra virus, Nipah virus, as well as severe acute respiratory syndrome and Middle East respiratory syndrome coronavirus (CoV). Here, we performed a molecular epidemiological investigation of South Korean bat viruses. Genetic comparative analysis was performed on the spike glycoprotein gene of the detected MERS‐related CoVs. Among 1640 samples (348 oral swabs, 1199 faecal samples, 83 urine samples and 10 bat carcass) collected across 24 South Korean provinces during 2017–2019, CoV was detected in 82 samples (75 faeces and seven oral swab samples) from 11 provinces. Surveillance over the 3 years during which samples were collected revealed significantly higher CoV detection rates between spring and autumn, and a high detection rate in Vespertillionidae and Rhinolophidae bats. Our phylogenetic analysis shows that Korean bat CoVs are genetically diverse regardless of their spatiotemporal distribution and their host species, and that the discovered bat CoVs belong to various subgenera within the Alpha‐ and Betacoronavirus genera. Twenty detected MERS‐related CoVs belonging to the genus Betacoronavirus were similar to the Ia io bat CoV NL140422 and NL13845 strains. A comprehensive genetic analysis of two Korean bat MERS‐related CoV spike receptor binding domain (RBDs) (176 and 267 strains) showed that the 18 critical residues that are involved in interactions with the human DPP4 receptor are most similar to the NL13845 strain, which is known to not bind with hDPP4. A deeper analysis of the interfacing residues in the Korean bat MERS‐related CoVs RBD–hDPP4 complexes showed that the Korean bat CoVs has fewer polar contacts than the NL13845 strain. Although further study will be needed, these results suggest that Korean bat MERS‐related CoVs are unlikely to bind with hDPP4. Nevertheless, these findings highlight the need for continuous monitoring to identifying the origin of new infectious diseases, specifically mutant CoV.
doi_str_mv 10.1111/tbed.14324
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Twenty detected MERS‐related CoVs belonging to the genus Betacoronavirus were similar to the Ia io bat CoV NL140422 and NL13845 strains. A comprehensive genetic analysis of two Korean bat MERS‐related CoV spike receptor binding domain (RBDs) (176 and 267 strains) showed that the 18 critical residues that are involved in interactions with the human DPP4 receptor are most similar to the NL13845 strain, which is known to not bind with hDPP4. A deeper analysis of the interfacing residues in the Korean bat MERS‐related CoVs RBD–hDPP4 complexes showed that the Korean bat CoVs has fewer polar contacts than the NL13845 strain. Although further study will be needed, these results suggest that Korean bat MERS‐related CoVs are unlikely to bind with hDPP4. 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source Wiley Online Library Journals Frontfile Complete
subjects bat
Betacoronavirus
Comparative analysis
Coronaviridae
coronavirus
Coronaviruses
COVID-19
Epidemiology
Feces
Genetic analysis
Genetic diversity
Geographical distribution
Glycoproteins
Infectious diseases
Middle East respiratory syndrome
Nipah virus
phylogenetic analysis
Phylogeny
Receptors
Residues
Respiratory diseases
Severe acute respiratory syndrome
Spatial distribution
Spike glycoprotein
Strains (organisms)
Temporal distribution
Viral diseases
Viruses
title Genetic diversity of bat coronaviruses and comparative genetic analysis of MERS‐related coronaviruses in South Korea
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