A Bicistronic DNA Vaccine for Grouper Viral Neuronecrosis
A DNA vaccine and bicistronic technology, applied in the field of fish immunology, can solve the problems of not very good immune protection effect, limited immune protection effect of fish body, not very good antigen immunogenicity, etc., and achieve good immune protection Effects, enhancement of humoral immunity, enhancement of the ability to resist nerve necrosis virus infection
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[0027] The preparation method of anti-NNV bicistronic DNA vaccine comprises the steps:
[0028] 1. Construction of recombinant eukaryotic plasmids:
[0029]1. According to the multiple cloning site in the pBudCE4.1 plasmid and the sequence of the grouper interferon regulatory factor 3 and the NNV capsid protein (MT157514.1), use the primer design software Primer 5.0 to design the sequences with NotI, KpnI and Forward and reverse primers for Hindlll and EcoRI restriction sites,
[0030] IRF-3-F: ATTTGCGGCCGCATGTCTCATTCTAAACCACT;
[0031] IRF-3-R: CGGGGTACCGTACATCTCCCATCATCATCTCCTC;
[0032] CP-F: CGGAATTCATGGTACGCAAAGGTGAGAAG;
[0033] CP-R: GCGTCGACTTAGTTTTCCGAGTCAACCCT.
[0034] 2. Amplification and purification of the target gene: the IRF-3 gene was amplified by artificially synthesizing specific primers using the genomic DNA of the head and kidney of the pearl gentian grouper. The reaction conditions were: pre-denaturation at 95°C for 5 minutes; 35 cycles at 95°C for 3...
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