申请人:Genta Incorporated
公开号:US05854410A1
公开(公告)日:1998-12-29
Methods and compounds for selective cleavage of nucleic acid are described. The compounds generally contain three functionalities: (1) an oligonucleoside portion which is substantially complementary to at least a portion of the target nucleic acid, thereby providing selectivity to the compound; (2) a non-complementary portion which replaces one of the otherwise-complementary nucleoside bases in the oligonucleoside and which serves to place the target nucleic acid strand into a conformation that favors the cleavage of a phosphodiester linkage opposite the non-complementary portion; and (3) a cleavage moiety which possesses one or more and preferably two or more of the features of (a) proton donation, (b) proton acceptance, (c) hydrogen bonding, (d) charge neutralization and (e) Lewis acidity. These compounds may be used for the study and treatment of diseases involving foreign genetic materials or alterations to or inappropriate expression of genomic DNA.
本文介绍了用于选择性剪切核酸的方法和化合物。这些化合物一般包含三种功能:(1)寡核苷酸部分,与目标核酸至少部分互补,从而为化合物提供选择性;(2)非互补部分,替换了寡核苷酸中的一个互补核苷酸碱基,并使目标核酸链处于有利于剪切非互补部分相对的磷酸二酯键的构象中;(3)剪切基团,具有一个或更多,优选地具有两个或更多的以下特征:(a)质子给予,(b)质子接受,(c)氢键形成,(d)电荷中和和(e)路易斯酸性。这些化合物可用于研究和治疗涉及外来遗传物质或基因组DNA的改变或不适当表达的疾病。