Highly Sensitive Detection Method for HV69-70del in SARS-CoV-2 Alpha and Omicron Variants Based on CRISPR/Cas13a.
Highly Sensitive Detection Method for HV69-70del in SARS-CoV-2 Alpha and Omicron Variants Based on CRISPR/Cas13a.
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基于 CRISPR/Cas13a 的 SARS-CoV-2 Alpha 和 Omicron 变种中 HV69-70del 的高灵敏检测方法
DOI:
10.3389/fbioe.2022.831332
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发表时间:
2022
影响因子:
5.7
通讯作者:
Sun, Yansong
中科院分区:
文献类型:
--
作者:
Niu, Mengwei;Han, Yao;Dong, Xue;Yang, Lan;Li, Fan;Zhang, Youcui;Hu, Qiang;Xia, Xueshan;Li, Hao;Sun, Yansong
As SARS-CoV-2 variants continue to evolve, identifying variants with adaptive diagnostic tool is critical to containing the ongoing COVID-19 pandemic. Herein, we establish a highly sensitive and portable on-site detection method for the HV69-70del which exist in SARS-CoV-2 Alpha and Omicron variants using a PCR-based CRISPR/Cas13a detection system (PCR-CRISPR). The specific crRNA (CRISPR RNA) targeting the HV69-70del is screened using the fluorescence-based CRISPR assay, and the sensitivity and specificity of this method are evaluated using diluted nucleic acids of SARS-CoV-2 variants and other pathogens. The results show that the PCR-CRISPR detection method can detect 1 copies/μL SARS-CoV-2 HV69-70del mutant RNA and identify 0.1% of mutant RNA in mixed samples, which is more sensitive than the RT-qPCR based commercial SARS-CoV-2 variants detection kits and sanger sequencing. And it has no cross reactivity with ten other pathogens nucleic acids. Additionally, by combined with our previously developed ERASE (Easy-Readout and Sensitive Enhanced) lateral flow strip suitable for CRISPR detection, we provide a novel diagnosis tool to identify SARS-CoV-2 variants in primary and resource-limited medical institutions without professional and expensive fluorescent detector.
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DOI:
10.1126/science.aav4294
发表时间:
2018-11-16
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Doudna JA
影响因子:
64.5
作者:
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通讯作者:
Wang Y
影响因子:
8.8
作者:
Meng B;Kemp SA;Papa G;Datir R;Ferreira IATM;Marelli S;Harvey WT;Lytras S;Mohamed A;Gallo G;Thakur N;Collier DA;Mlcochova P;COVID-19 Genomics UK (COG-UK) Consortium;Duncan LM;Carabelli AM;Kenyon JC;Lever AM;De Marco A;Saliba C;Culap K;Cameroni E;Matheson NJ;Piccoli L;Corti D;James LC;Robertson DL;Bailey D;Gupta RK
通讯作者:
Gupta RK
影响因子:
3.7
作者:
Myers FB;Henrikson RH;Bone JM;Lee LP
通讯作者:
Lee LP
DOI:
10.1016/s2213-2600(21)00005-9
发表时间:
2021-03
期刊:
The Lancet. Respiratory medicine
影响因子:
--
作者:
Kirby T
通讯作者:
Kirby T