期刊論文
| 學年 | 93 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2004-11-01 |
| 作品名稱 | DNA Hydrolysis Catalyzed by Tris(diisopropyl-1,4,7-triazacyclononanes)Ethane Metal Complexes |
| 作品名稱（其他語言） | |
| 著者 | 鄭建中; Cheng, Chien-chung; Cheng, Chien-chung; Huang, Yan-chen; Liu, Ming-chan |
| 單位 | 淡江大學化學學系 |
| 出版者 | 臺北市：中國化學學會 |
| 著錄名稱、卷期、頁數 | Journal of the Chinese Chemical Society=中國化學會會誌 51(5B), pp.1201-1208 |
| 摘要 | Novel trinuclear coordinated ligands were designed using three of 1,4,7-triazacyclononane moieties with a tribromo linker. These ligands show greater capability and potency in association with various metal ions. Tris(diisopropyl-1,4,7-triazacyclononanes)ethane (2) associated with Cu2+ and Ce4+ ions shows better reactivity to achieve DNA hydrolysis at 37 °C at pH 8 for 5 hr. Using high resolution of polyacrylamide gel electrophoresis, DNA cleavage reaction in Tris-HCl buffer causes a nicking site at the single-stranded region. Alternatively, the reaction in HEPES buffer shows a random DNA cleavage included the double-stranded region. Hydrolysis of phosphodiester bond mediated by trinuclear metal complex is capable of performing at the physiological temperature 37 °C, but it has a lower reactivity compared to mono- and di-nuclear metal complexes. The result suggests that trinuclear metal complexes have a bulky environment to prevent from going toward the phosphodiester bond. The design of an efficient chemical hydrolyase will be a challenge in order to construct a coordinate ligand with the enhancement of hydrolytic activity and the reduction of the steric environment. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0009-4536 |
| 期刊性質 | 國內 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/24938 ) |