›› 2004, Vol. 47 ›› Issue (5): 686-690.

• 研究论文 • 上一篇    下一篇

Bt Cry1Ac毒素筛选的粉纹夜蛾离体抗性细胞与敏感细胞蛋白质组的差异分析

蒋才富, 刘凯于, 彭蓉, 郑进, 彭建新, 洪华珠   

  • 出版日期:2004-10-20 发布日期:2004-10-20

Differential proteomic analysis of Bt Cry1Ac toxin-resistant and susceptible BTI-Tn-5B1-4 cells

JIANG Cai-Fu, LIU Kai-Yu, PENG Rong, ZHENG Jin, PENG Jian-Xin, HONG Hua-Zhu*   

  • Online:2004-10-20 Published:2004-10-20
  • Contact: HONG Hua-Zhu

摘要: 采用双向电泳技术和肽质量指纹图谱技术分析了Bt Cry1Ac毒素筛选的粉纹夜蛾Trichoplusia ni抗性BTI-Tn-5B1-4细胞与同源敏感细胞的蛋白质组的差。用Melanie ViewerⅡ软件在抗性细胞的双向电泳图谱上检测到的平均蛋白质点数为707±25个(n=3),在敏感细胞的双向电泳图谱上检测到的平均蛋白质点数为637±19个(n=3),其中分辨率高、重复性良好的显著差异点有10余个。对其中的一个敏感细胞特有的显著差异斑点进行了肽质量指纹图谱分析,经数据库 查询表明该蛋白质与胞质外周蛋白具有同源性。

关键词: BTI-Tn-5B1-4细胞, Cry1Ac, 抗性, 双向电泳, 肽质量指纹图谱分析

Abstract: The proteomic difference between the resistant BTI-Tn-5B1-4 selected by Bt Cry1Ac and the susceptible cell from the same cell clone was compared using dielectrophoresis (2-DE) and peptide mass fingerprint technology. 707±25 dots (n=3) were detected on the resistant cell's proteomic 2-DE map, and 637±19 (n=3)on the susceptible cell's proteomic 2-DE map with Melanie Viewer Ⅱ software. More than ten unmatched dots with good repetition and high resolution have been detected. One differential dot with good repetition on the susceptible cell's 2-DE map was measured using the peptide mass fingerprint technology and searched in the SWISS-PROT database, and the results showed that the protein was homologous with the periplasmic protein .

Key words: BTI-Tn-5B1-4 cell, Cry1Ac, resistance, dielectrophoresis, peptide mass fingerprint