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以放射性标记的肽核酸对目标基因的识别与检测

  • 王光伟 ,
  • 黄亮 ,
  • 向开祥 ,
  • 赵红 ,
  • 何裕建
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  • 1. 湖南师范大学医学院, 长沙 410006;
    2. 湖南怀化医学高等专科学校, 湖南 怀化 418000;
    3. 中国科学院研究生院化学与化学工程学院, 北京 100049;
    4. 北京大学天然药物及仿生药物国家重点实验室, 北京 100191

收稿日期: 2011-11-09

  修回日期: 2012-02-17

  网络出版日期: 2013-01-15

基金资助

国家自然科学基金(20571085,20877099,20972183);国家十二五计划支撑项目(2012BAI37B03);国家科技部863项目(2008AA100801);湖南高等教育研究基金(06C068);中国科学院计算地球动力学重点实验室开放基金(06);北京大学天然药物及仿生药物国家重点实验室开放基金(K20120201)和中国科学院研究生院院长基金资助

Recognition and detection of target DNA using radio-labelled peptide nucleic acids

  • WANG Guang-Wei ,
  • HUANG Liang ,
  • XIANG Kai-Xiang ,
  • ZHAO Hong ,
  • HE Yu-Jian
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  • 1. Medical College, Hunan Normal University, Changsha 410006, China;
    2. Huaihua Medical College, Huaihua 418000, Hunan, China;
    3. College of Chemistry and Chemical Engineering, Graduate University, Chinese Academy of Sciences, Beijing 100049, China;
    4. State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China

Received date: 2011-11-09

  Revised date: 2012-02-17

  Online published: 2013-01-15

摘要

用放射性核素111In3+标记的肽核酸(PNA)为探针,分别检测与PNA序列互补的单链寡聚核苷酸、pUC19-C1质粒结合形成双螺旋的情况.结果表明,PNA不仅能够与游离单链的互补核酸形成稳定的双螺旋;还在有PNA开链剂存在的情况下,能够与靶位质粒特异性结合.以放射性标记的PNA可作为检测目标基因片断的有效分子探针.

本文引用格式

王光伟 , 黄亮 , 向开祥 , 赵红 , 何裕建 . 以放射性标记的肽核酸对目标基因的识别与检测[J]. 中国科学院大学学报, 2013 , 30(1) : 1 -5 . DOI: 10.7523/j.issn.1002-1175.2013.01.001

Abstract

The radio-111In3+ labelled peptide nucleic acid (PNA) was used as molecular probe and the pUC19-C1 plasmid which contains the target site of the PNA probe was constructed. The results show that PNA forms a stable double helix with not only the complementary single-stranded nucleic acid but also the plasmid in the presence of PNA opener. It is suggested that radio-labelled PNA probe can be used to detect target DNA in genes.

参考文献

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