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Genetic Perturbations of RNA Reveal Structure-based Recognition in Protein-RNA Interaction.

机译:RNA的遗传扰动揭示了蛋白质-RNA相互作用中基于结构的识别。

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Protein-RNA recognition is an essential foundation of cellular processes, yet much remains unknown about these important interactions. The recognition between aminoacyl-tRNA synthetases and their cognate tRNA substrates is highly specific and essential for cell viability, due to the necessity for accurate translation of the genetic code into protein sequences. We selected an active tRNA that is highly mutated in the recognition nucleotides of the acceptor stem region in the alanine system. The functional properties of this mutant and its secondary derivatives demonstrate that recognition cannot be reduced to isolated structural elements, but rather the amino acid acceptor stem is being recognized as a unit.
机译:蛋白质-RNA识别是细胞过程的重要基础,但对于这些重要的相互作用尚不清楚。氨酰基-tRNA合成酶及其同源tRNA底物之间的识别是高度特异性的,对于细胞活力至关重要,这是因为必须将遗传密码准确翻译成蛋白质序列。我们选择了在丙氨酸系统中受体茎区的识别核苷酸中高度突变的活性tRNA。该突变体及其二级衍生物的功能特性表明,识别不能还原为分离的结构元件,而是将氨基酸受体茎识别为一个单元。

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