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硫修饰核苷:硫代尿苷
硫代尿苷是一种尿嘧啶的氧原子被硫原子取代的修饰核苷,形成4-硫代尿苷和2-硫代尿苷。4-硫代尿苷是一种光激活的核苷,嵌入了4-硫代尿苷的RNA在UV光照射下可与相互作用蛋白交联,因此它可用于一种RNA分析和分离,即PAR-CLIP法1)。另一方面,2-硫代尿苷是一种在tRNA中发现的硫修饰核苷。硫原子比氧原子具有更大的原子半径及更高的极化率,并能抑制错配碱基对的形成,因此含2-硫代尿苷的反义寡核苷酸和siRNA的选择性有望被提高2)。
我司能提供各种4-和2-硫代尿苷衍生物 (1, 2, 3, 4)作为硫修饰核苷。请联系我们,了解有关产品规模扩大或目录中未列出的硫修饰核苷合成的更多信息。
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- 1) Transcriptome-wide identification of RNA-binding protein and microRNA target sites by PAR-CLIP
- 2) Thermodynamics of RNA−RNA Duplexes with 2- or 4-Thiouridines: Implications for Antisense Design and Targeting a Group I Intron