Identification of nsp1 gene as the target of SARS-CoV-2 real-time RT-PCR using nanopore whole-genome sequencing
© 2020 Wiley Periodicals LLC..
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the coronavirus disease 2019 (COVID-19) pandemic. Accurate detection of SARS-CoV-2 using molecular assays is critical for patient management and the control of the COVID-19 pandemic. However, there is an increasing number of SARS-CoV-2 viruses with mutations at the primer or probe binding sites, and these mutations may affect the sensitivity of currently available real-time reverse transcription-polymerase chain reaction (RT-PCR) assays targeting the nucleocapsid (N), envelope (E), and open reading frame 1a or 1b genes. Using sequence-independent single-primer amplification and nanopore whole-genome sequencing, we have found that the nonstructural protein 1 (nsp1) gene, located at the 5' end of the SARS-CoV-2 genome, was highly expressed in the nasopharyngeal or saliva specimens of 9 COVID-19 patients of different clinical severity. Based on this finding, we have developed a novel nsp1 real-time RT-PCR assay. The primers and probes are highly specific for SARS-CoV-2. Validation with 101 clinical specimens showed that our nsp1 RT-PCR assay has a sensitivity of 93.1% (95% confidence interval [CI]: 86.2%-97.2%), which was similar to those of N and E gene RT-PCR assays. The diagnostic specificity was 100% (95% CI: 92.9%-100%). The addition of nsp1 for multitarget detection of SARS-CoV-2 can avoid false-negative results due to mutations at the primers/probes binding sites of currently available RT-PCR assays.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2020 |
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Erschienen: |
2020 |
Enthalten in: |
Zur Gesamtaufnahme - volume:92 |
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Enthalten in: |
Journal of medical virology - 92(2020), 11 vom: 01. Nov., Seite 2725-2734 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Chan, Wan-Mui [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 24.12.2020 Date Revised 16.07.2022 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1002/jmv.26140 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM310811066 |
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520 | |a Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the coronavirus disease 2019 (COVID-19) pandemic. Accurate detection of SARS-CoV-2 using molecular assays is critical for patient management and the control of the COVID-19 pandemic. However, there is an increasing number of SARS-CoV-2 viruses with mutations at the primer or probe binding sites, and these mutations may affect the sensitivity of currently available real-time reverse transcription-polymerase chain reaction (RT-PCR) assays targeting the nucleocapsid (N), envelope (E), and open reading frame 1a or 1b genes. Using sequence-independent single-primer amplification and nanopore whole-genome sequencing, we have found that the nonstructural protein 1 (nsp1) gene, located at the 5' end of the SARS-CoV-2 genome, was highly expressed in the nasopharyngeal or saliva specimens of 9 COVID-19 patients of different clinical severity. Based on this finding, we have developed a novel nsp1 real-time RT-PCR assay. The primers and probes are highly specific for SARS-CoV-2. Validation with 101 clinical specimens showed that our nsp1 RT-PCR assay has a sensitivity of 93.1% (95% confidence interval [CI]: 86.2%-97.2%), which was similar to those of N and E gene RT-PCR assays. The diagnostic specificity was 100% (95% CI: 92.9%-100%). The addition of nsp1 for multitarget detection of SARS-CoV-2 can avoid false-negative results due to mutations at the primers/probes binding sites of currently available RT-PCR assays | ||
650 | 4 | |a Journal Article | |
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700 | 1 | |a Ip, Jonathan Daniel |e verfasserin |4 aut | |
700 | 1 | |a Chu, Allen Wing-Ho |e verfasserin |4 aut | |
700 | 1 | |a Yip, Cyril Chik-Yan |e verfasserin |4 aut | |
700 | 1 | |a Lo, Lap-Sum |e verfasserin |4 aut | |
700 | 1 | |a Chan, Kwok-Hung |e verfasserin |4 aut | |
700 | 1 | |a Ng, Anthony Chin-Ki |e verfasserin |4 aut | |
700 | 1 | |a Poon, Rosana Wing-Shan |e verfasserin |4 aut | |
700 | 1 | |a To, Wing-Kin |e verfasserin |4 aut | |
700 | 1 | |a Tsang, Owen Tak-Yin |e verfasserin |4 aut | |
700 | 1 | |a Leung, Wai-Shing |e verfasserin |4 aut | |
700 | 1 | |a Kwan, Mike Yat-Wah |e verfasserin |4 aut | |
700 | 1 | |a Chua, Gilbert T |e verfasserin |4 aut | |
700 | 1 | |a Chung, Tom Wai-Hin |e verfasserin |4 aut | |
700 | 1 | |a Hung, Ivan Fan-Ngai |e verfasserin |4 aut | |
700 | 1 | |a Kok, Kin-Hang |e verfasserin |4 aut | |
700 | 1 | |a Cheng, Vincent Chi-Chung |e verfasserin |4 aut | |
700 | 1 | |a Chan, Jasper Fuk-Woo |e verfasserin |4 aut | |
700 | 1 | |a Yuen, Kwok-Yung |e verfasserin |4 aut | |
700 | 1 | |a To, Kelvin Kai-Wang |e verfasserin |4 aut | |
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