重組人糖皮質(zhì)激素受體原核表達(dá)載體的構(gòu)建和表達(dá)
發(fā)布時(shí)間:2018-04-29 07:54
本文選題:陰陽虛證 + 糖皮質(zhì)激素受體; 參考:《第二軍醫(yī)大學(xué)》2005年碩士論文
【摘要】:目的:構(gòu)建hGRα重組原核表達(dá)質(zhì)粒并進(jìn)行誘導(dǎo)表達(dá),為下一步研制hGRα ELISA檢測試劑盒和進(jìn)一步研究GR與中醫(yī)學(xué)陰陽虛證的關(guān)系服務(wù)。 方法:以含有hGRα cDNA的重組克隆質(zhì)粒pRShGRα為模板,通過PCR擴(kuò)增得到hGRα的兩種基因片段,將這兩種基因片段分別克隆到pGEM-T載體上,進(jìn)而亞克隆到pGEX-4T-3表達(dá)載體上。將這兩種重組表達(dá)質(zhì)粒進(jìn)行酶切、測序鑒定后,分別轉(zhuǎn)化大腸桿菌DH5α和BL21(DE3),并在一定的條件下進(jìn)行重組蛋白的誘導(dǎo)表達(dá),誘導(dǎo)表達(dá)產(chǎn)物行SDS-PAGE和Western blotting分析。 結(jié)果:酶切和測序結(jié)果證明hGRα的兩種基因片段均成功地重組入pGEX-4T-3載體。誘導(dǎo)表達(dá)產(chǎn)物的SDS-PAGE和Western blotting分析均提示有hGRα目的蛋白特異表達(dá)。 結(jié)論:本實(shí)驗(yàn)成功構(gòu)建了hGRα的兩種重組原核表達(dá)質(zhì)粒,并成功誘導(dǎo)了它們的原核表達(dá),為下一階段的研究奠定了基礎(chǔ)。
[Abstract]:Objective: to construct the recombinant prokaryotic expression plasmid of hGR 偽 and express it in order to further study the relationship between gr and yin and yang deficiency syndrome in traditional Chinese medicine. Methods: using the recombinant clone plasmid pRShGR 偽 containing hGR 偽 cDNA as template, two kinds of hGR 偽 gene fragments were amplified by PCR and cloned into pGEM-T vector respectively, and then subcloned into pGEX-4T-3 expression vector. The two recombinant expression plasmids were digested by enzyme and identified by sequencing. The recombinant proteins were transformed into Escherichia coli DH5 偽 and BL21DE-3, respectively. The recombinant protein was induced and expressed under certain conditions. The induced expression products were analyzed by SDS-PAGE and Western blotting. Results: the results of restriction endonuclease digestion and sequencing showed that the two gene fragments of hGR 偽 were successfully recombined into pGEX-4T-3 vector. Both SDS-PAGE and Western blotting analysis of induced expression products indicated that hGR 偽 target protein was specifically expressed. Conclusion: in this experiment, two recombinant prokaryotic expression plasmids of hGR 偽 were successfully constructed, and their prokaryotic expression was induced successfully, which laid a foundation for the next stage of research.
【學(xué)位授予單位】:第二軍醫(yī)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2005
【分類號(hào)】:R346
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