机构地区: 广东药学院基础学院
出 处: 《国外医学(药学分册)》 2007年第2期99-102,共4页
摘 要: 脱氧核酶是利用体外分子进化技术获得的一种具有酶活性的单链DNA分子。迄今为止,利用该技术已筛选出多种具有催化功能的脱氧核酶分子,其中研究最多的是具有RNA切割活性的脱氧核酶,尤其是10~23型脱氧核酶,该酶能催化RNA特定部位的切割反应,从mRNA水平使基因灭活,从而调控蛋白质的表达,在抗肿瘤、抗病毒等基因治疗领域具有广阔的应用前景。 Deoxyribozyme is a single-stranded molecule with enzymatic activity. It was derived from a random-sequence DNA pool by in vitro selection. Up to date, a variety of deoxyribozymes have been isolated in vitro that can catalyze different chemical reactions. Of particular interest are deoxyribozymes with RNA-cleaving activity, especially" 10- 23" DNAzyme. It can cleave any RNA in a sequence-specific manner and inactivate gene at the level of mRNA, then regulate the expression of protein. So it may have a wide application prospect in gene therapy as anti-cancer and anti-viral agents and so on.
领 域: [生物学]