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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (6): 701-704.

• 研究原著 • 上一篇    下一篇

利用RTS500 系统进行抗菌肽葛佬素蛋白的体外表达

罗平, 许波, 鲁永玲, 周红   

  1. 第三军医大学药理教研室, 重庆400038
  • 收稿日期:2005-01-07 修回日期:2005-05-27 出版日期:2005-06-26 发布日期:2020-11-12
  • 通讯作者: 周红, 女, 博士后, 教授, 博士生导师, 主要从事感染、炎症的发病机制及其防治措施的研究。Tel:023-68752266 E-mail: zhouh64@mail.tmmu.com.cn
  • 作者简介:罗平, 女, 主管技师。Tel:023-66973817
  • 基金资助:
    中关村创新研究基金资助项目

Expression of antibacterial peptide gloverin in vitro

LUO Ping, XU Bo, LU Yong-ling, ZHOU Hong   

  1. Department of Pharmacology, College of Medicine, Third Military Medical University, Chongqing 400038, China
  • Received:2005-01-07 Revised:2005-05-27 Online:2005-06-26 Published:2020-11-12

摘要: 目的: 构建含目的基因葛佬素(gloverin) 的重组子并通过体外快速翻译系统RTS500(rapid translationsystem) 对其进行表达。方法: 采用PCR 方法扩增葛佬素cDNA, 将其与表达载体pIVEX2.3 连接;采用PCR 及双酶切方法鉴定连接产物。将含目的基因片段的阳性重组质粒通过体外表达翻译系统RTS500, 使其蛋白能在大肠杆菌(E. coli) 裂解产物中进行表达。应用蛋白免疫印迹方法对表达产物进行鉴定。结果: pIVEX2.3-G 重组表达质粒通过体外表达翻译系统RTS500 可表达出分子量约为14.4 的蛋白;蛋白免疫印迹证实该蛋白为带有多聚组氨酸标签的融合蛋白。结论: 抗菌肽葛佬素可在体外大肠杆菌裂解产物中进行表达。

关键词: 葛佬素, 抗菌肽, 快速翻译系统, 体外表达, PCR

Abstract: AIM: To construct a recombinant vector containing gloverin and express it in vitro by Rapid Translation System(RTS500). METHODS: The gloverin cDNA was amplified by PCR and inserted into the prokaryotic expression vector pIVEX2.3.The recombinant product was identified by PCR and enzyme digestion. The positive reconstructed expression plasmid pIVEX2.3-G was expressed by RTS500 in vitro. The expressed protein was identified by SDS-PAGE and western blotting. RESULTS: Positive recombinant plasmid pIVEX2.3-G was successfully constructed. Target protein of 13.8 Kda with 6-his tag was detected by SDS-PAGE and western blotting. CONCLUSION: Gloverin polypeptide is successfully expressed in inactive E. coli in vitro.

Key words: gloverin, antibacterial peptide, rapid translation system, expression, PCR

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