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Screening of binding protein of hepatitis B virus pre-pre-s promoter by phage display technique
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 12
- DOI:
- 10.3969/j.issn.1009-3079.2004.12.007
- Key Word:
- No keyword available
Abstract： 目的:筛选乙型肝炎病毒(HBV)前-前-S抗原基因启动子的结合蛋白.方法:应用噬菌体表面展示技术,以HBV前-前-S抗原基因启动子的聚合酶链反应产物作为固相筛选分子,对噬菌体人肝细胞cDNA文库进行4轮"黏附-洗脱-扩增"的筛选过程,经噬斑的PCR扩增后,构建克隆载体,并对所筛选克隆进行DNA测序和生物信息学分析.结果:噬菌体经富集后,从随机筛选的43个克隆中得到20个与HBV前-前-S抗原基因启动子特异结合的阳性克隆,包括人类SMG-1的磷脂酰肌醇3相关激酶激酶、28S核糖体、单倍型As2A线粒体、组氨酰-tRNA合成酶、脂肪醛脱氢酶、桥粒相关蛋白、MAX相互作用蛋白1等17个已知功能基因及3个未知功能基因.结论:用噬菌体人肝细胞cDNA文库筛选得到HBV前-前-S抗原基因启动子的结合蛋白基因,为进一步研究HBV发病机制创造了新的途径.
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