申请人:Whitehead Institute for Biomedical Research
公开号:US20040038273A1
公开(公告)日:2004-02-26
Disclosed are tRNA analogues which comprise a tRNA, such as tRNA
phe
; a nonstandard amino acid moiety which acts as an acceptor substrate, but not as a donor substrate, for ribosome-directed nonstandard polymer transfer and, thus, is stably linked to the acceptor stem of the tRNA; and a reactive or activatible moiety near or within the anticodon stem loop of the tRNA that can medidate the covalent coupling of the tRNA analogue to mRNA. Also disclosed are nonstandard polymer-tRNA analogue-mRNA fusions; libraries of encoded nonstandard polymers; methods of producing and screening the libraries; and target members and their uses.
所公开的 tRNA 类似物包括 tRNA,如 tRNA
雉
非标准氨基酸分子,该分子可作为核糖体定向非标准聚合物转移的受体底物而非供体底物,因此可稳定地连接到 tRNA 的受体茎上;以及在 tRNA 的反密码子茎环附近或内部的活性或活化相容分子,该分子可介导 tRNA 类似物与 mRNA 的共价偶联。还公开了非标准聚合物-tRNA 类似物-mRNA 融合体;编码的非标准聚合物文库;生产和筛选文库的方法;以及目标成员及其用途。