A probe library, detection method and kit for detecting met gene exon 14 mutation

A kit and exon technology are used in the field of probes and detection for detecting MET gene exon 14 mutations, which can solve the problems of inability to quantify mRNA, low sensitivity, and low throughput, shorten the detection cycle, ensure Accurate and sensitive effects

Active Publication Date: 2018-05-04
NANJING SHIHE MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages include: it is a single-base mutation detection, it cannot quantify mRNA, and cannot detect gene transversions; it has low sensitivity; it takes a long time, and only one gene mutation can be detected at a time; it cannot determine the specific changes of bases; Perform high-throughput assays
Its disadvantages include: it cannot detect single-base type mutations; it cannot detect gene transversions; it can only detect known mutations; it takes a long time, and only one gene mutation can be detected at a time; it cannot determine the specific changes of bases
Its disadvantages include: it cannot detect gene transversions; it can only detect known mutations; it has high cost and low throughput; it has low accuracy and usually needs to be repeated more than 2 times to confirm the results

Method used

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  • A probe library, detection method and kit for detecting met gene exon 14 mutation
  • A probe library, detection method and kit for detecting met gene exon 14 mutation
  • A probe library, detection method and kit for detecting met gene exon 14 mutation

Examples

Experimental program
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Effect test

Embodiment 1

[0146] Example 1 Enrichment and detection of MET14 exon genes

[0147] 1. Build a sample library

[0148] 1. Construction of positive quality control plasmids and internal control plasmids

[0149] Positive quality control plasmid: construct a plasmid for the common MET gene exon 14 skipping mutation D1028N (c.G3082A).

[0150] Internal control plasmid: wild-type plasmid with the same sequence corresponding to the above positive plasmid.

[0151] Mix the positive quality control plasmid and the internal control plasmid according to the copy number ratio to obtain a plasmid sample solution with a mutation frequency of 10%, and then adjust the DNA concentration with Tris-HCl buffer (2.5mM, pH8.5) to obtain a DNA concentration of 5 μg / μL The solution.

[0152] 2. DNA Fragmentation

[0153] According to the instruction manual of the DNA fragmentation instrument, fragment the DNA sample so that the fragment length is 150-200 bases.

[0154] The DNA was purified on a column u...

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Abstract

The invention provides a probe for detecting MET gene 14 exon mutation and a detection method. A DNA probe library comprises one or more DNA probes capable of hybridizing with an MET gene 14 exon and adjacent introns. The DNA probes are as shown in SEQ ID NO.1 to No.46. In addition, the invention provides a method for performing enrichment and detection on the MET gene 14 exon and the adjacent introns by using the probe library. The method is combined with a next-generation sequencing (NGS) technology, so the sensitivity, the accuracy and the comprehensiveness of MET14 gene detection can be greatly improved.

Description

technical field [0001] The invention relates to the field of gene detection, in particular, the invention relates to a probe and a detection method for detecting the mutation of exon 14 of the MET gene. This method can accurately enrich the mutation sequence of exon 14 of the MET gene, and the obtained DNA sample library can be further combined with next-generation sequencing (NGS) to accurately determine the mutation of exon 14 of the MET gene in patients, and provide information for related tumors. Provide guidance and theoretical basis for diagnosis, prognosis, and design of clinical treatment plans. Background technique [0002] Primary lung cancer (hereinafter referred to as lung cancer) occurs in the epithelium of the bronchial mucosa, so it is also called bronchial lung cancer. It is the most common primary malignant tumor of the lung and one of the most common malignant tumors in my country. healthy. [0003] In my country, the morbidity and mortality of lung cancer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6869C12N15/11
CPCC12Q1/6869C12Q2535/122C12Q2565/519
Inventor 邵阳吴雪那成龙赵忞超王延宾
Owner NANJING SHIHE MEDICAL DEVICES CO LTD
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