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Multiplex real-time fluorescent RT-PCR primer probe compositions and kits for novel coronavirus nucleic acid testing

A detection kit and technology for coronavirus are applied in the field of multiple real-time fluorescent RT-PCR primer-probe compositions and kits, which can solve the problems of easy mutation and missed detection of RNA viruses, so as to avoid missed detection and meet detection requirements. Effect

Inactive Publication Date: 2020-12-11
JIANGSU CODE BIOMEDICAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

At present, most of the commercialized kits that have been put into clinical use only use the Wuhan-Hu-1 virus strain (NC_045512) originally reported in my country as the design template when designing their PCR primers and probes, while SARS-CoV-2 is used as the design template. RNA viruses are prone to mutations, resulting in a certain degree of missed detection

Method used

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  • Multiplex real-time fluorescent RT-PCR primer probe compositions and kits for novel coronavirus nucleic acid testing
  • Multiplex real-time fluorescent RT-PCR primer probe compositions and kits for novel coronavirus nucleic acid testing
  • Multiplex real-time fluorescent RT-PCR primer probe compositions and kits for novel coronavirus nucleic acid testing

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Embodiment Construction

[0032] The advantages and various effects of the present invention will be presented more clearly below in combination with specific implementation methods and examples. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.

[0033] In the embodiment of the present invention, the lasergene PrimerSelect software (DNASTAR, Inc.Ver.7.1.0) is used to analyze the formation of dimers between primers and probes for a total of 9 sets of primer-probe compositions of candidates, and 2 sets of primers are preferably selected. See Table 4 for the comparison of the worst ΔG values ​​(free energy) of the probe compositions and the pairing formation of more than 3 consecutive bases in the dimers.

[0034] Comparison of dimer formation between table 4 primers and probes

[0035]

[0036] The above two sets of primer-probe compositions were respectively assembled into cor...

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Abstract

The invention discloses multiplex real-time fluorescent RT-PCR primer probe compositions and kits for novel coronavirus nucleic acid testing. The kits comprises multiplex real-time fluorescent RT-PCRprimers and probes for testing an ORF1ab gene and an N gene of SARS-CoV-2; the upstream primer body for amplifying the ORF1ab gene is shown as SEQ ID NO: 1, and the downstream primer body for amplifying the ORF1ab gene is shown as SEQ ID NO: 2; a probe sequence for testing the ORF1ab gene is shown as SEQ ID NO: 3; the upstream primer body for amplifying the N gene is shown as SEQ ID NO: 4, and thedownstream primer body for amplifying the N gene is shown as SEQ ID NO: 5; and the probe sequence for testing the N gene is shown as SEQ ID NO: 6. Clinical verification of China and America proves that the kits can meet testing of clinical samples at home and abroad.

Description

technical field [0001] This patent belongs to the field of medical in vitro diagnosis, and relates to a multiple real-time fluorescent RT-PCR primer probe composition and kit for the detection of novel coronavirus nucleic acid. Background technique [0002] All editions of the "Diagnosis and Treatment Plan for Novel Coronavirus Pneumonia" issued by the National Health and Medical Commission (now updated to the eighth trial version) clearly list real-time fluorescent RT-PCR detection of positive nucleic acid of the new coronavirus SARS-CoV-2 as one of the diagnostic criteria First, the timely and accurate identification of SARS-CoV-2 is the prerequisite for reasonable clinical treatment and scientific prevention and control of novel coronavirus pneumonia (COVID-19). [0003] However, at the beginning of the outbreak, the State Drug Administration launched the "Emergency Approval Procedures for Medical Devices" to meet a large number of testing needs. As a result, reagent manu...

Claims

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Application Information

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IPC IPC(8): C12Q1/70C12Q1/686C12N15/11C12R1/93
CPCC12Q1/701C12Q1/686C12Q2600/16C12Q2537/143C12Q2563/107C12Q2521/107Y02A50/30C12Q1/6883
Inventor 潘世扬顾春荣穆原徐建谢梦晓陶剑峰潘玥
Owner JIANGSU CODE BIOMEDICAL TECH CO LTD
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