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Detection agent composition and kit for detecting multiple mutation sites of EGFR gene

A technology for detecting kits and mutation sites, which is applied in the fields of biotechnology and medicine, and can solve problems such as low throughput, inability to realize PCR detection, and cumbersome detection process

Pending Publication Date: 2020-07-03
河南爱微迪生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current digital PCR instrument can only detect the signals of two channels at the same time, and cannot achieve more PCR detection. The throughput is low, the detection process is cumbersome, time-consuming, and costly.

Method used

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  • Detection agent composition and kit for detecting multiple mutation sites of EGFR gene
  • Detection agent composition and kit for detecting multiple mutation sites of EGFR gene
  • Detection agent composition and kit for detecting multiple mutation sites of EGFR gene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] This embodiment provides a kit for detecting 51 kinds of mutations in the human EGFR gene, the primers, probes and Blocker sequences included in it are as follows:

[0126]

[0127]

[0128] The internal control is selected from the relatively conserved region of the EGFR gene. The 5' end of the internal control probe is labeled with a fluorescent group VIC, and the 3' end is labeled with a quencher group BHQ1. The internal control primer probe sequence is as follows:

[0129] IC-F 5'-GCTCACGCAGTTGGGCA-3' SEQ ID No.41 IC-R 5'-AAGGACCACCTCACAGTTATTG-3' SEQ ID No.42 IC-P 5'-VIC-TTGAAGATTCATTTTCTCAGCCTCCAGAGGA-BHQ1-3' SEQ ID No.43

[0130] The composition of the kit is as follows:

[0131] The kit includes three kinds of mixed reaction solutions, and internally controlled primers and probes have been added to the mixed reaction solutions.

[0132]

[0133]

[0134] The mutation types detected by different reaction solutions...

Embodiment 2

[0158] Using the present invention to detect 37 cases of clinical tissue samples with known mutations and 24 cases of peripheral blood, the coincidence rate of positive samples is 100%. In addition, low-frequency mutations in some samples were also detected, and a total of 2 cases of 19del and 1 case of G719X were detected. , 1 case of L861Q (contamination or false positive has been ruled out).

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PUM

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Abstract

The invention provides a detection agent composition and kit for detecting multiple mutation sites of an EGFR gene. The invention firstly provides the detection agent composition for detecting the multiple mutation sites of 18-21 exons of the EGFR gene. The detection agent composition contains SEQ ID No.1, SEQ ID No.2, SEQ ID No.3, SEQ ID No.4, SEQ ID No.5, SEQ ID No.6, SEQ ID No.7, SEQ ID No.8, SEQ ID No.9, SEQ ID No.10 and SEQ ID No.11. The invention further provides the relevant detection kit and a detection method. The detection agent composition and the detection kit are capable of simultaneously detecting 51 mutations of the EGFR gene, the detection rates of the mutations are basically the same, the detection sensitivity can reach up to 0.1%, and meanwhile, the detection agent composition and the detection kit are applicable to mutation detection in cfDNA and tissue DNA.

Description

technical field [0001] The invention relates to a primer, a probe, a multiple qPCR reaction system and a kit for simultaneously detecting 51 kinds of mutations on exons 18-21 of the human EGFR gene, belonging to the fields of biotechnology and medicine. Background technique [0002] EGFR is the expression product of the proto-oncogene c-erbB1 and a member of the epidermal growth factor receptor (HER) family. The HER family consists of four molecules, EGFR / HER1 / erbB1, HER2 / neu / erbB2, HER3 / erbB3, and HER4 / erbB4, which play important regulatory roles in physiological processes such as cell growth, proliferation, and differentiation. [0003] EGFR is a transmembrane tyrosine kinase receptor, and the activation of the receptor kinase domain is related to various signal transduction pathways such as cancer cell proliferation, metastasis and apoptosis. Abnormalities in EGFR signaling are responsible for the development of various tumors. [0004] EGFR mutations mainly occur in th...

Claims

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Application Information

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IPC IPC(8): C12Q1/6886C12N15/11
CPCC12Q1/6886C12Q2600/156
Inventor 林张军曹飞杨卫平
Owner 河南爱微迪生物技术有限公司
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