Specific primmer and liquid phase chip for SLCO1B1 gene SNP detection
A detection solution and specificity technology, applied in the field of molecular biology, can solve the problems of high false positive rate, easy sample contamination, low sensitivity, etc., and achieve the effect of avoiding cross-reaction, strong scalability, and simple steps
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Embodiment 1
[0021] Example 1 The SLCO1B1 gene SNP detection liquid chip mainly includes:
[0022] 1. ASPE Primers
[0023] Specific primer sequences were designed for wild-type and mutant types of five common genotypes of SLCO1B1 gene, T521C (rs4149056), T89595C (rs4363657), A388G (rs2306283), C463A (rs11045819) and A1929C (rs34671512). ASPE primers consist of "Tag sequence + specific primer sequence". ASPE primer sequences are shown in the table below:
[0024] Table 1 ASPE primer sequence of SLCO1B1 (Tag sequence + specific primer sequence)
[0025]
[0026]
[0027] Each ASPE primer includes two parts, the 5' end is a specific tag sequence for the anti-tag sequence on the corresponding microsphere, and the 3' end is a mutant or wild-type specific primer fragment (as shown in the above table 1). All ASPE primers were synthesized by Shanghai Sangon Bioengineering Technology Service Co., Ltd. Each synthesized primer was prepared into a 100pmol / mL stock solution with 10mmol / LTris...
Embodiment 2
[0040] Example 2 Detection of samples using SLCO1B1 gene detection liquid chip
[0041] The formula of described various solutions is as follows:
[0042] 50mM MES buffer (pH5.0) formula (250ml):
[0043] Reagent
source
Final concentration
Dosage per 250ml
MES(2[N-Morpholino]
Sigma M-2933
0.05M
2.44g
5M NaOH
Fisher SS256-500
---
5 drops
[0044] 2×Tm hybridization buffer
[0045] Reagent
source
Final concentration
Dosage per 250ml
1M Tris-HCl, pH8.0
SigmaT3038
0.2M
50ml
5MNaCl
Sigma S5150
0.4M
20ml
Triton X-100
Sigma T8787
0.16%
0.4ml
[0046] Store at 4°C after filtration.
[0047] ExoSAP-IT kit was purchased from US USB Company.
[0048] Biotin-labeled dCTP was purchased from Shanghai Sangon Bioengineering Technology Service Co., Ltd.
[0049] 1. Sample DNA extractio...
Embodiment 3
[0111] Example 3 Detection of the SNP site of SLCO1B1 gene by liquid chip with different ASPE primers
[0112] 1. Design of liquid phase chip preparation (selection of Tag sequence and Anti-Tag sequence)
[0113] Taking the T521C site mutation detection liquid chip of the SLCO1B1 gene as an example, the specific primer sequences at the 3' end of the ASPE primer were designed for the wild type and mutant type of T521C, and the Tag sequence at the 5' end of the ASPE primer was selected from SEQ ID NO.1 - SEQ ID NO.10, correspondingly, the anti-tag sequence coated on the microspheres and complementary to the corresponding tag sequence is selected from SEQ ID NO.21-SEQ ID NO.30. The specific design is shown in the following table (Table 7). The synthesis of ASPE primers, microspheres coated with anti-tag sequences, amplification primers, detection methods, etc. are as described in Example 1 and Example 2.
[0114] Table 7 Design of liquid phase chip preparation
[0115]
[0...
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