Multiplex PCR specific primers, kit and method for detecting causative genes of large vestibular aqueduct syndrome based on high throughput sequencing technique

A disease-causing gene and detection method technology, which is applied in the field of multiple PCR specific primers and kits, can solve the problems of long delivery time of kits, insufficient comprehensive and accurate results, and low sequencing quality, so as to ensure the specificity of PCR amplification , enhance the stability of primers, and ensure the effect of amplification efficiency

Inactive Publication Date: 2017-04-26
XIANGYA HOSPITAL CENT SOUTH UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sanger sequencing can only sequence a certain region of a sample at a time, which has low detection efficiency, high cost, and low sensitivity (20%)
Gene chip method and fluorescent quantitative PCR method are used to detect the pathogenic gene of large vestibular aqueduct syndrome. This method can only design detection probes for one or several known mutation sites to form a detection chip, so it cannot be used to detect unknown mutation sites. point, the test results are not comprehensive and accurate enough
Multi-color fluorescent melting curve analysis method, the fluorescent dye used is a general-purpose double-stranded DNA intercalator, which cannot recognize primer dimers and non-specific amplification products, and may easily cause false positives
The high-throughput sequencing method is mainly composed of sequencing instrument library construction kits provided by sequencing instrument suppliers, which are evaluated by the supplier company for quality control. There are shortcomings such as long delivery period of kits, fixed specifications of kits, and insufficient test flexibility.
Some reagent manufacturers build libraries according to the experimental methods shared and reported in the literature, but the results of the completed experiments are uneven, and the sequencing quality is not high

Method used

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  • Multiplex PCR specific primers, kit and method for detecting causative genes of large vestibular aqueduct syndrome based on high throughput sequencing technique
  • Multiplex PCR specific primers, kit and method for detecting causative genes of large vestibular aqueduct syndrome based on high throughput sequencing technique
  • Multiplex PCR specific primers, kit and method for detecting causative genes of large vestibular aqueduct syndrome based on high throughput sequencing technique

Examples

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Effect test

Embodiment 1

[0045] Example 1 A multiplex PCR-specific primer, kit and method for detecting the causative gene of large vestibular aqueduct syndrome based on high-throughput sequencing technology

[0046] 1. Design of primers

[0047] The causative gene sequence of the large vestibular aqueduct syndrome was selected from the University of California Santa Cruz (UCSC) database, and Primer3 primer design software was selected to design the whole exon primers of the causative gene. and uncommon mutational hotspots.

[0048] A total of 43 pairs of primers were designed for the whole exons of the causative gene of large vestibular aqueduct syndrome. Specific modifications were introduced during design, and the modified primers were not easily degraded by nucleases, and had a relatively uniform Tm value, which was uniformly designed to be around 60°C (±2°C); the primers showed good performance in multiple amplification. Specificity, stability and uniformity, while there is no non-specific ampl...

Embodiment 2

[0069] Example 2 Primer Specificity Verification

[0070] Using the S1 method in Example 1 to extract nucleic acid from whole blood samples (number: 1-3), oral exfoliated cell samples (number: 4-6), paraffin tissue samples (number: 7-9), and perform concentration and purity determination Finally, take qualified samples and use 10mM Tris to dilute each sample to 100ng / μL, and use 1% agarose gel electrophoresis to detect the quality of each sample (the qualified standard is the same as the step S1 in Example 1), and enter the group after passing the test and perform mark. Using the S2 method in Example 1, the above-mentioned 9 cases of qualified samples were amplified, and the sample volume was 1 μL each. After the amplified product was purified, it was detected by 1% agarose gel electrophoresis (the qualification standard is the same as that of the S3 step in Example 1) . Nine samples were detected by the amplification and detection method of specific primers for the causativ...

Embodiment 3

[0072] Example 3 Primer Detection Sensitivity Verification

[0073] The S1 method in Example 1 was used to extract sample nucleic acid from the qualified whole blood sample (number: 1), oral exfoliated cell sample (number: 4), and paraffin tissue sample (number: 7) to verify the sensitivity of primer detection. The initial concentration of each sample is 100ng / μL, and it is diluted according to the concentration gradient of 5 times, 10 times and 20 times. After dilution, the concentration of each sample is 20ng / μL, 10ng / μL and 5ng / μL respectively, and the sample name and Concentration marks. The above-mentioned 9 qualified diluted samples were amplified using the S2 method in Example 1, and the sample volume was 1 μL each. The 9 samples were detected using the specific primer amplification and detection method for the causative gene of large vestibular aqueduct syndrome. The control test is the same as that in Example 1, and the detection method is the same as the sample detect...

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Abstract

The invention belongs to the field of gene detection and relates to multiplex PCR specific primers, kit and method for detecting causative genes of large vestibular aqueduct syndrome based on a high throughput sequencing technique. The invention discloses the multiplex PCR specific primers which are used for detecting causative genes of large vestibular aqueduct syndrome and are shown in formulas of SEQ ID NO: 1 to SEQ ID NO: 86, the kit containing the primers and the detection method for capturing and amplifying the causative gene of large vestibular aqueduct syndrome through a one-step PCR amplification reaction through the primers or kit. The multiplex PCR specific primers, kit and detection method can realizes simultaneous detection of multiple causative genes of large vestibular aqueduct syndrome of multiple samples, effectively improve the detection efficiency and accuracy, reduce a cost and simplify operation processes.

Description

technical field [0001] The invention belongs to the field of gene detection, and in particular relates to a multiplex PCR specific primer, kit and method for detecting the causative gene of large vestibular aqueduct syndrome based on high-throughput sequencing technology. Background technique [0002] Large vestibular aqueduct syndrome (Large Vestibular aqueduct Syndrome, LVAS) is a congenital hereditary inner ear deformity hearing impairment discovered in the late 1970s. A characteristic autosomal recessive genetic hearing impairment disease, clinically mainly manifested as sensorineural deafness with high-frequency hearing loss, and the degree of hearing loss is usually severe or extremely severe deafness, which may be accompanied by A series of clinical symptoms such as recurrent tinnitus or vertigo. The onset is mostly in childhood, and before the onset, there are often colds, fevers, traumas and other causes that increase intracranial pressure. A number of clinical st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/68C12N15/11
Inventor 冯永梅凌云刘亚兰贺楚峰朱奇朱瑞娟关媛妹刘丽
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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