NM23-pIRES2-EGFP質(zhì)粒的構(gòu)建與鑒定
[Abstract]:Aim: to construct eukaryotic expression vector NM23-p IRES2-EGFP, and identify the accuracy of DNA sequencing and restriction endonuclease digestion, so as to provide the experimental basis for the further study of the proliferation, apoptosis and metastasis of gastric cancer cells by NM23 gene. Methods: 1. The total RNA, was extracted from human normal gastric mucosa by TRIZOL method and the CDS sequence of NM23 gene was amplified by RT-PCR method. The CDS sequence of NM23 gene was identified by agarose gel electrophoresis, and NM23 gene was recovered by gel electrophoresis. The p MD18-T-simple-NM23, gene was sequenced by ligating with the cloned vector of p MD18-T-simple. The result of sequencing was consistent with the sequence of human NM23 gene reported by Genebank. The 3.NM23 gene was ligated with the vector pl RES2-EGFP, which was digested by enzyme. The expression vector NM23-p IRES2-EGFP, was constructed to detect the accuracy of recombinant plasmid sequence by PCR, digestion and DNA sequencing. The result is 1: 1. NM23 gene was amplified from human normal gastric mucosa. Agarose gel electrophoresis showed that the RT-PC R product was between the bands of 500-750bp, which was consistent with the theoretical value of 534bp. 2. The sequence of the CDS region of the NM23 gene recorded in the Genebank database was completely consistent with that of the cloned vector p MD18-T-simple. 3. 3. The eukaryotic expression vector NM23-p IRES2-EGFP, was constructed by cloning technique, and PCR, was digested with DNA sequencing. The results showed that the eukaryotic expression vector NM23-p IRES2-EGFP was successfully constructed. Conclusion: 1. The NM23 gene with the size of 534bp can be amplified from normal human gastric mucosa by TRIZOL. The 2.NM23 gene is ligated into the TA clone vector as the next step to construct the vector, and the recombinant plasmid p MD18-T-simple-NM23.3. is obtained. The recombinant plasmid NM23-p IRES2-EGFP, was successfully digested by PCR,Xho I/Ba m HI and sequenced to confirm the accuracy of the recombinant plasmid.
【學(xué)位授予單位】:遵義醫(yī)學(xué)院
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:R735.2
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