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Micro-RNAs (miRNAs): genomic organisation, biogenesis and mode of action.

机译:微rnas(miRNA):基因组组织,生物生成和行动方式。

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摘要

MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression in animals and in plants. In recent years, miRNAs have been shown to be important biological molecules for regulating various cellular functions. miRNAs function post-transcriptionally usually by base-pairing to the mRNA 3'-untranslated regions of the mRNAs and repress protein synthesis by mechanisms that are not fully understood. Various miRNA genes have been mapped in the genome of a number of organisms and the list continues to grow. Details regarding the genomic organisation, transcriptional regulation and post-transcriptional maturation of miRNAs are still emerging. In this review, information regarding the genomic organisation, biogenesis and regulation of expression of miRNAs is discussed.
机译:microRNAs(miRNA)是小型非编码RNA,其调节动物和植物中的基因表达。 近年来,MIRNA已被证明是用于调节各种细胞功能的重要生物分子。 MiRNA函数通常通过碱基对MRNA 3'-未翻译的MRNA的碱基进行配对,并通过不完全理解的机制抑制蛋白质合成。 在许多生物的基因组中映射了各种miRNA基因,并且该列表继续生长。 关于基因组组织,转录调控和miRNA后转录成熟的细节仍在出现。 在本次综述中,讨论了有关基因组组织,生物发生和MiRNA表达的调控的信息。

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