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Antibody-free fluorine assisted metabolic sequencing of RNA N4-acetylcytidine

ABSTRACT: Antibody-free fluorine assisted metabolic sequencing of RNA N4-acetylcytidine

PROVIDER: PRJNA983845 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24920359_1.fastq.gz	Fastqsanger.gz
	SRR24920359_2.fastq.gz	Fastqsanger.gz
	SRR24920360_1.fastq.gz	Fastqsanger.gz
	SRR24920360_2.fastq.gz	Fastqsanger.gz
	SRR24920361_1.fastq.gz	Fastqsanger.gz

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Antibody-free fluorine assisted metabolic sequencing of RNA N4-acetylcytidine

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Project description:N4 acetylcytidine (ac4C) modification mainly occurs on tRNA, rRNA, and mRNA, playing an important role in the expression of genetic information. However, it is still unclear whether microRNAs have undergone ac4C modification and their potential physiological and pathological functions. In this study, we identified that NAT10/THUMPD1 acetylates primary microRNAs (pri-miRNAs) with ac4C modification. Knockdown of NAT10 suppresses and augments the expression levels of mature miRNAs and pri-miRNAs, respectively. Molecular mechanism studies found that pri-miRNA ac4C promotes the processing of pri-miRNA into precursor miRNA (pre-miRNA) by enhancing the interaction of pri-miRNA and DGCR8, thereby increasing the biogenesis of mature miRNA. Knockdown of NAT10 attenuates the oncogenic characters of lung cancer cells by regulating miRNA production in cancers. Moreover, NAT10 is highly expressed in various clinical cancers and negatively correlated with poor prognosis. Thus, our results reveal that NAT10 plays a crucial role in cancer initiation and progression by modulating pri-miRNA ac4C to affect miRNA production, which would provide an attractive therapeutic strategy for cancers.

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