Wu H N, Lai M M
Institute of Molecular Biology, Academia Sinica, Nankang, Taipei, Republic of China.
Mol Cell Biol. 1990 Oct;10(10):5575-9. doi: 10.1128/mcb.10.10.5575-5579.1990.
Hepatitis delta virus (HDV) RNA subfragments undergo self-cleavage at varying efficiencies. We have developed a procedure of using repeated cycles of heat denaturation and renaturation of RNA to achieve a high efficiency of cleavage. This effect can also be achieved by gradual denaturation of RNA with heat or formamide. These results suggest that only a subpopulation of the catalytic RNA molecules assumes the active conformation required for self-cleavage. This procedure could be of general use for detecting catalytic RNA activities.
丁型肝炎病毒(HDV)RNA亚片段以不同效率进行自我切割。我们开发了一种利用RNA反复热变性和复性循环的程序来实现高效切割。通过用热或甲酰胺使RNA逐渐变性也可达到这种效果。这些结果表明,只有一部分催化RNA分子呈现自我切割所需的活性构象。该程序可普遍用于检测催化RNA活性。