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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Versatile 5' phosphoryl coupling of small and large molecules to an RNA
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Versatile 5' phosphoryl coupling of small and large molecules to an RNA

机译:小分子和大分子与RNA的多功能5'磷酸偶联

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摘要

A Ca~2+-requiring catalytic RNA is shown to create 5' phosphate-phosphate linkages with all nucleotides and coenzymes including CoA, nicotinamide adenine dinucle- otide phosphate, thiamine phosphate, thiamine pyrophos- phate, and flavin mononucleotide. In addition to these small molecules, macromolecules such as RNAs with 5'-diphos- phates, and nonnucleotide molecules like Nε-phosphate argi- nine and 6-phosphate gluconic acid also react. That is, the self-capping RNA isolate 6 is an apparently universal 5' phosphate-linker, reacting with any nucleophile containing an unblocked phosphate. These RNA reactions demonstrate a unique RNA catalytic capability and imply versatile and specific posttranscriptional RNA modification by RNA catalysis.
机译:已显示需要Ca〜2 +的催化RNA与所有核苷酸和辅酶(包括CoA,烟酰胺腺嘌呤二核苷酸磷酸,硫胺磷酸,硫胺焦磷酸和黄素单核苷酸)产生5'磷酸-磷酸键。除这些小分子外,大分子(例如带有5'-二磷酸盐的RNA)和非核苷酸分子(例如Nε-磷酸三聚乙二醇和6-磷酸葡萄糖酸)也会发生反应。即,自封端RNA分离物6是明显通用的5'磷酸酯接头,其与任何包含未封闭的磷酸酯的亲核试剂反应。这些RNA反应显示出独特的RNA催化能力,并暗示通过RNA催化进行的多用途和特异性转录后RNA修饰。

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