J4

• 基础研究 • 上一篇    下一篇

凝血因子Ⅷ C2结构域表达载体的构建及其在真核细胞NIH3T3中的表达

刘晓冬1,马淑梅1,LANG Glen2, SEHON Alec2   

  1. 1. 吉林大学公共卫生学院 卫生部放射生物学重点实验室,吉林 长春,130021;2. 加拿大曼尼拖巴大学
  • 收稿日期:2004-09-29 修回日期:1900-01-01 出版日期:2005-01-28 发布日期:2005-01-28

Construction of recombinant vector containing FⅧ-C2 and its expression in NIH3T3 cells

LIU Xiao-dong1, MA Shu-mei1, LANG Glen2, SEHON Alec2   

  1. 1.MH Radiobiology Research Unit, School of Public Health, Jilin University, Changchun 130021,China;2. Department of Immunology, Faculty of Medicine, University of Manitoba, Canada,R3E 0W3
  • Received:2004-09-29 Revised:1900-01-01 Online:2005-01-28 Published:2005-01-28

摘要: 医学院免疫系,加拿大 温尼伯 R3E 0W3 目的:构建人凝血因子FⅧ中具有免疫活性的C2结构域表达载体并通过真核宿主细胞表达出多肽。 方法:从HEK293细胞提取总RNA,经RT-PCR扩增获得目的片段。将该片段与信号肽共同构建在同一表达载体,并在NIH3T3细胞中表达,Western blotting检测。 结果:经限制性酶切鉴定和测序分析证实,采用RT-PCR成功地完成FⅧ-C2 cDNA的扩增和表达载体的构建,重组载体转染进入NIH3T3细胞后,经检测培养上清中的蛋白成分证实,成功地表达出FⅧ-C2结构域多肽。 结论:重组表达载体的构建是表达出分泌型FⅧC2多肽的一种可行的方法。

关键词: C2结构域, 逆转录聚合酶链反应, 基因重组

Abstract: Objective To construct the complementary DNA (cDNA) of FⅧ-C2 by gene engineering and express the biologically active domain in NIH 3T3. Methods The total RNA extracted from 293 cells and FⅧ-C2 was amplified by RT-PCR. The product was then inserted into pTARGET vector together with signal peptide sequence. The recombinant vector was transfected into NIH3T3 cells followed by the detection of the expression of FⅧ-C2 by Western blotting. Results The cDNA of FⅧ-C2 was identified correctly by endonucleases cleavage and sequencing. The recombinant FⅧ-C2 peptide was obtained by detection of FⅧ-C2 from the supernatant of NIH3T3. Conclusion The construction of recombinant vector is a feasible way to express secretive FⅧ-C2.

Key words: C2 domain, reverse transcriptase polymerase chain reaction, gene recombination

中图分类号: 

  • Q78