Detection probes and detection liquid phase chip for BIM gene deletion mutation
A gene deletion and mutation detection technology, applied in the field of molecular biology, can solve the problems of inappropriate clinical diagnostic chip, high detection price, low degree of automation, etc., achieve accurate and reliable detection results, overcome low sensitivity, and improve sensitivity Effect
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Embodiment 1BI
[0023] Embodiment 1 BIM gene deletion mutation detection liquid chip mainly includes:
[0024] 1. Detection probe
[0025] For the wild-type and mutant types of the BIM gene deletion mutation detected by the target of the present invention, design detection probes, as shown in the following table:
[0026] Table 1 Detection probe sequences for BIM gene deletion mutations
[0027]
[0028]
[0029] The four selected microspheres were purchased from Luminex, USA, and the detection probes were coated on the microspheres (one probe corresponds to one microsphere). A 20-50 T spacer sequence is connected between the detection probe and the microsphere, that is, a 20-50 T spacer sequence is added before each detection sequence. The detection probe sequence is provided by Shanghai Sangon Bioengineering Co., Ltd. Technical Services Ltd Synthesis. The synthesized detection probe was treated with sterilized ddH 2 O was made into a stock solution of 100nmol / ml.
[0030] The spa...
Embodiment 3 Embodiment 1
[0077] BIM gene mutation detection detection probe in embodiment 3 embodiment 1
[0078] 1. Design of liquid phase chip preparation
[0079] 2 wild-type detection probes (SEQ ID NO.1 and SEQ ID NO.2) and mutant detection probes (SEQ ID NO.3 and SEQ ID NO. .4) to form different detection systems to compare different combinations of wild-type probes and mutant probes to obtain consistent detection results. The specific probe combinations are shown in Table 4. The detection probes are coated with microspheres (detection There is a 30T spacer sequence between the probe and the microsphere), the amplification primer (the 5' end of the biotin-labeled reverse primer (SEQ ID NO.6 and SEQ ID NO.7)), the detection method, etc. as implemented Described in Example 1 and Example 2.
[0080] Table 4 Hybridization probe sequence
[0081]
[0082] 2. Sample testing
[0083] Using the liquid phase chip prepared by the above design, samples 21-40 were detected according to the detection ...
Embodiment 4BI
[0091] The selection of embodiment 4BIM gene mutation detection detection probe
[0092] 1. Design of liquid-phase chip preparation (selection of wild-type and mutant-specific primer sequences)
[0093] Using the forward or reverse complementary sequence of the target sequence where the BIM gene deletion mutation is located as a template, design detection probes for wild type and mutant type respectively, including 2 preferred detection probes and 4 preparations in Example 1 of the present invention. The selected detection probes are shown in Table 7. Detection probe-coated microspheres (with a 30T spacer sequence between the detection probe and the microspheres), amplification primers (biotin-labeled reverse primers (SEQ ID NO.6 and SEQ ID NO.7) 5 'end), detection methods, etc. are as described in Example 1 and Example 2.
[0094] Table 7 Hybridization probe sequence
[0095]
[0096]
[0097] 2. Sample testing
[0098] Using the liquid phase chip prepared by the ab...
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