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Method for analyzing haplotype of PCR products by primer selection sequencing-by-synthesis

A technology of synthetic sequencing and haplotype, which is applied in biochemical equipment and methods, microbial measurement/inspection, etc., and can solve the problems of cumbersome operation, different amplification efficiency, and low efficiency

Active Publication Date: 2015-01-28
SOUTHEAST UNIV
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Problems solved by technology

However, because this method requires allele-specific amplification primers, the optimization design of amplification primers is limited, and its amplification efficiency will vary with different amplified fragments, and even the target fragment cannot be amplified. It is cumbersome and inefficient; it needs to label two specific amplification primers at the same time, and the cost is not cheap

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  • Method for analyzing haplotype of PCR products by primer selection sequencing-by-synthesis
  • Method for analyzing haplotype of PCR products by primer selection sequencing-by-synthesis
  • Method for analyzing haplotype of PCR products by primer selection sequencing-by-synthesis

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example 1

[0034] Example 1: The haplotype analysis of the MMP7 (U25346) gene PCR product comprising A / G (rs11568818) and C / T (rs11568819) nucleic acid fragments

[0035] (1) Genomic DNA in peripheral blood was extracted from the blood sample using traditional protein kinase K and phenol / chloroform extraction methods;

[0036] (2) PCR primers (5'-AGTCTACAGAACTTTGAAAGTATGTG-3', 5'-biotin-CTATGAGAGC AGTCATTTGACTTTG-3', 200 ng genomic DNA, 0.2mM dNTP, 1 U Taq DNA polymerase, 1×amplification buffer, 1.8 mM MgCl 2 50 μL PCR amplification system for amplification. The amplification conditions are: initial denaturation at 94°C for 5 minutes, 35 thermal cycles: denaturation at 94°C for 30 seconds, annealing at 61°C for 45 seconds, extension at 72°C for 45 seconds, and finally extension at 72°C for 7 minutes.

[0037] (3) React the PCR amplification with avidin-modified magnetic beads, immobilize the biotin-modified DNA strand on the magnetic beads, denature it under 0.2M NaOH solution, remove ...

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Abstract

The invention provides a method for analyzing haplotype of PCR products by primer selection sequencing-by-synthesis. The method is adopted to perform haplotype analysis on two or more PCR products (multiple DNA templates) of site variation (such as SNP and mutation), wherein the PCR products are hybridized by a specific sequencing primer and then are divided into two parts, and a 3' terminus-closed monomer reagent is added to each part; the sequencing primer extends one base with the varied site under the guidance of a DNA template, the 3' terminus of the sequencing primer is closed and cannot extend continuously, and then the sequencing-by-synthesis is performed on the unclosed primers to obtain the sequence information of a specific DNA template, thereby determining the haplotype of PCR products.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a method for analyzing PCR product haplotypes by using primers to select, synthesize and sequence. Background technique [0002] In molecular biology research, DNA sequence analysis is the basis for further research and modification of target genes, and is crucial to life science. With the development and completion of the Human Genome Project and various model organism genome projects, human beings have entered the post-gene era, and the related disciplines of molecular biology have developed rapidly. It will become possible to understand the differences of life, the law of disease occurrence and development, and the interaction between drugs and living organisms at the genetic level. In terms of basic research, research on the inheritance rules of disease genes and clone disease-causing genes; in terms of application, directly find the mutation sites of susceptibility genes of dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/68
CPCC12Q1/6869C12Q2535/101C12Q2565/301
Inventor 肖鹏峰潘荣芳浦丹
Owner SOUTHEAST UNIV
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