Primer and method for fast typing campylobacter jejuni
A rapid technology for Campylobacter jejuni, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., to achieve good specificity, simple and fast operation, and auxiliary clinical diagnosis effects
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Embodiment 1
[0024] Embodiment 1, primer
[0025] The primer provided by the invention is used for rapid typing of Campylobacter jejuni.
[0026] Table 1 Primers provided by the present invention
[0027]
[0028]
Embodiment 2
[0029] Example 2, the length of each target gene interval segment of Campylobacter jejuni
[0030] The length of the mnmA target intergenic fragment provided by the present invention is 201bp, the length of the trpC target intergenic fragment is 253bp, the length of the rpmH target intergenic fragment is 315bp, the length of the acs target intergenic fragment is 436bp, and the length of the ansA target intergenic fragment is The length of the ppk target intergenic fragment is 3170bp, the length of the metB target intergenic fragment is 637bp, the length of the surE target intergenic fragment is 1270bp, the length of the rplT target intergenic fragment is 823bp, and the length of the dnaB target intergenic fragment is 500bp. The length of the target intergenic fragment of arsR is 923bp, the length of the target intergenic fragment of arsR is 1176bp, the length of the target intergenic fragment of ksgA is 2545bp, and the length of the target intergenic fragment of tonB is 1763bp....
Embodiment 3
[0034] Embodiment 3, a kind of method for rapid typing of Campylobacter jejuni
[0035] 1. Extraction of Genomic DNA of Campylobacter jejuni:
[0036] Take the 36 strains of Campylobacter jejuni to be tested, respectively densely streak on the blood agar plate medium, place in 5% O 2 , 10% CO 2 and 85%N 2 Under microaerophilic conditions, after 24-48 hours of enrichment culture at 37°C, scrape all the colonies on the medium to 2ml ddH 2 In O, vortex and oscillate to mix and then centrifuge at 10000rpm for 2min, discard the supernatant, and operate according to the bacterial genomic DNA small-scale purification kit of Takara Company, extract 36 strains of Campylobacter jejuni genomic DNA respectively, and extract the DNA The concentration is 10-200ng / μl. The obtained genomic DNA was stored at -20°C before testing.
[0037] 2. PCR amplification of different gene interval segments of the strain to be tested:
[0038] With 13 pairs of Campylobacter jejuni primers provided in...
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