Replacement of the Cleavable Phosphodiester Bond of a Hammerhead Ribozyme Substrate by an Amide Linkage
作者:Fabienne Burlina、Alain Favre、Jean-Louis Fourrey、Martial Thomas
DOI:10.1002/(sici)1099-0690(200002)2000:4<633::aid-ejoc633>3.0.co;2-u
日期:2000.2
dimer in which the natural phosphodiester bond is replaced by an isosteric amide linkage has been prepared. This dimer analogue was subsequently incorporated chemically at the cleavage position of a hammerhead ribozyme substrate. Although the resulting substrate analogue exhibited a high affinity for the ribozyme as shown by gel retardation assays, the amide bond proved to be fully resistant to cleavage
已经制备了其中天然磷酸二酯键被等排酰胺键取代的核苷二聚体。该二聚体类似物随后在锤头状核酶底物的裂解位置化学结合。尽管如凝胶阻滞分析所示,所得的底物类似物对核酶表现出高亲和力,但在核酶裂解活性的标准条件下,酰胺键被证明对裂解具有完全的抵抗力。