高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (11): 1769.

• 论文 • 上一篇    下一篇

羟乙基纤维素及蔗糖无胶筛分毛细管电泳分离DNA片段

陈洪, 宋立国, 熊少祥, 程介克   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1996-10-23 出版日期:1997-11-24 发布日期:1997-11-24
  • 通讯作者: 程介克
  • 作者简介:陈洪, 男, 32岁.硕士研究生.
  • 基金资助:

    国家自然科学基金

Separation of DNA Fragments by Capillary Electrophoresis with Non-gel Sieving Matrix of Hydroxyethyl Cellulose and Sucrose

CHEN Hong, SONG Li-Guo, XIONG Shao-Xiang, CHENG Jie-Ke   

  1. Department of Chemistry, Wuhan University, Wuhan 430072
  • Received:1996-10-23 Online:1997-11-24 Published:1997-11-24

摘要: 提出以羟乙基纤维素、蔗和硼酸形成"互穿网络"无胶筛分介质,显著地提高了分离效率.分离了ΦX174/HaeⅢDNA的所有11个DNA片段.探讨了"互穿网络"无胶筛分机理.将该方法应用于决定鳝鱼性别基因PCR扩增产物的分离与鉴定,结果较好.

关键词: 无胶筛分毛细管电泳, DNA片段, 激光诱导荧光, 电荷耦合器件, PCR扩增产物

Abstract: We demonstrate that hydroxyethyl cellulose, sucrose and boric acid can formnongel sieving matrix with interpenetrating polymer networks (INPs).This kind of INPs mixednon-gel sieving matrix can greatly improve DNAseparation efficiency.While all elevenfragments of φX174/Hae Ⅲ DNAcan not be completely separated with a sieving matrix of 0.8%hydroxyethyl cellulose in 1×TBE buffer, they are successfully separated by a non-gelsieving matrix of 0.8% hydroxyethyl cellulose, 10% sucrose in 1×TBEbuffer.The reactionmechnism to form the INPs has been proposed.The length of a PCRmagnified DNAfragment from sex-related gene in rice-field cells is also determined, which is in good agreementwith slab gel electrophoresis.

Key words: Non-gel sieving capillary electrophoresis, DNA fragment, Laser-induced fluorescence, Charge-coupled device, PCR amplified product

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