应用化学 ›› 2009, Vol. 26 ›› Issue (10): 1200-1205.

• 研究论文 • 上一篇    下一篇

6-氯-2-氨基嘌呤核苷酸的合成、光谱性质及生化评价的研究

陈长宝,吴春辉,周杰   

  1. (山东农业大学化学与材料科学学院 泰安 271018)
  • 收稿日期:2008-10-16 修回日期:2008-12-22 出版日期:2009-10-10 发布日期:2009-10-10
  • 通讯作者: 周杰,男,教授,博士生导师; E-mail:zhoujie@sdau.edu.cn; 研究方向:化学生物学
  • 基金资助:
    山东省中青年奖励基金(02BS019)资助项目

Chemical Synthesis, Spectroscopic Properties and Biochemical Evaluation of 6-chloro-2-aminopurine nucleoside triphosphate

 CHEN Chang-Bao, WU Chun-Hui, ZHOU Jie   

  1. (College of Chemistry and Materials Science,Shandong Agricultural University,Tai′an 271018)
  • Received:2008-10-16 Revised:2008-12-22 Published:2009-10-10 Online:2009-10-10

摘要:

经过4步合成了一个嘌呤核苷酸衍生物6-氯-2-氨基嘌呤核苷三磷酸盐,使用1H NMR、13C NMR、31P NMR、IR和元素分析表征了它的化学结构。在不同pH值的溶液中研究了它的紫外和荧光光谱性质,并通过pH光度微量滴定法测定了一个质子化产物的pKa值为1.44。最后,在马铃薯三磷酸腺苷双磷酸酶的催化下研究了此化合物的水解特性,这个核苷衍生物三磷酸盐与ATP竞争马铃薯三磷酸腺苷双磷酸酶的活性位点的机理被证明是一个混合型抑制机理。

关键词: 6-氯-2-氨基嘌呤核苷三磷酸盐, 化学合成, 光谱性质, 生化评价

Abstract:

A purine nucleotide derivative 6-chloro-2-aminopurine nucleoside triphosphate was chemically synthesized through four steps and was characterized with 1H NMR, 31P NMR, 13C NMR, EA and IR. Its ultraviolet and fluorescence properties at various pH values were studied. One pKa value for the compound was determined by the curves of UV absorption dependency on pH, which was 1.44. Hydrolysis of the nucleotide derivative in the catalysis of potato apyrase was studied. The competion of the ATP analogue with ATP for potato apyrase凷 active site was proved to be a mixed prohibition mechanism.