Specific primers and liquid-phase chip for detection of KITLG gene
A detection solution and specificity technology, applied in the field of molecular biology, can solve the problems of being unusable and unable to meet the needs of practical applications, and achieve the effect of low cross-reaction rate
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Embodiment 1
[0019] Embodiment 1 KITLG gene polymorphism detection liquid chip mainly includes:
[0020] 1. ASPE Primers
[0021] Specific primer sequences were designed for wild-type and mutant types of nine common genotypes of KITLG gene C74T, A123G, A181G, A89G, G96A, A106G, T161G, A151G and G122T. ASPE primers consist of "Tag sequence + specific primer sequence". ASPE primer sequences are shown in the table below:
[0022] The ASPE primer sequence (Tag sequence+specific primer sequence) of table 1KITLG gene
[0023]
[0024]
[0025] 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 stock solution of 100 pmol / mL with 10 mmol / L Tris Buffer.
[0026] 2. Micro...
Embodiment 3
[0095] The liquid phase chip of embodiment 3 different ASPE primers is to the detection of KITLG gene polymorphic site
[0096] 1. Design of liquid phase chip preparation (selection of Tag sequence and Anti-Tag sequence)
[0097] Taking KITLG gene A123G and A106G site mutation detection liquid chip as an example, the specific primer sequence of the 3' end of the ASPE primer was designed for the wild type and mutant type of A123G and A106G respectively, and the Tag sequence at the 5' end of the ASPE primer was selected from SEQ ID NO: ID NO.1-SEQ ID NO.18, correspondingly, the anti-tag sequence coated on the microsphere and complementary to the corresponding tag sequence is selected from SEQ ID NO.37-SEQ ID NO.54. The specific design is shown in the following table (Table 8). 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.
[0098] Table 8 Design of liquid p...
Embodiment 4
[0109] Embodiment 4 detects the selection of specific primer sequence with KITLG gene polymorphism
[0110] 1. Design of liquid-phase chip preparation (selection of wild-type and mutant-specific primer sequences)
[0111] Taking the A181G and T161G site mutation detection liquid chip of the KITLG gene as an example, using the forward or reverse complementary sequence of the target sequence where the mutation site is located as a template, ASPE primers were designed for the wild type and mutant type of A181G and T161G respectively3 The specific primer sequences at the 'end include the preferred specific primer sequences and 2 alternative specific primer sequences in Example 1 of the present invention, as shown in Table 11. in, Inner bases are polymorphic sites.
[0112] Table 11 specific primer sequence
[0113]
[0114] Taking the KITLG gene A181G and T161G site mutation detection liquid chip as an example, different specific primer sequences were selected for A181G and...
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