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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation.

ABSTRACT: Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation.

PROVIDER: PRJNA607947 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11139035_1.fastq.gz	Fastqsanger.gz
	SRR11139035_2.fastq.gz	Fastqsanger.gz
	SRR11139036_1.fastq.gz	Fastqsanger.gz
	SRR11139036_2.fastq.gz	Fastqsanger.gz
	SRR11139037_1.fastq.gz	Fastqsanger.gz

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation. [Rho-Seq]

Project description:Here we have developed Rho-seq, an integrated pipeline detecting a range of modifications through differential modification-dependent Rhodamine labeling. Using Rho-seq, we report that the reduction of uridine to dihydrouridine by the Dus reductase family targets tRNAs in E. coli but expands to mRNAs is yeast. The modified mRNAs are enriched for cytoskeleton related encoded protein. We show that the a-tubulin encoding mRNA nda2 undergoes dihydrouridination, which affects its protein expression level. The absence of the modification onto the nda2 mRNA strongly impacts meiosis by inducing a metaphase delay or by completely preventing the formation of spindles during meiosis I and meiosis II, eventually resulting in low gamete viability. Collectively these data show that the codon specific reduction of uridine within mRNA is required for proper meiotic chromosome segregation and gamete viability.

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation. [RNA-Seq]

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation [Ribo/RNA-seq]

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation. [Rho-Seq]

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation. [RNA-Seq]

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation [Ribo/RNA-seq]

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Transcription-wide distribution of dihydrouridine (D) into mRNAs reveals its requirement for meiotic chromosome segregation.

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Transcription-wide mapping of dihydrouridine reveals that mRNA dihydrouridylation is required for meiotic chromosome segregation.

Project description:The epitranscriptome has emerged as a new fundamental layer of control of gene expression. Nevertheless, the determination of the transcriptome-wide occupancy and function of RNA modifications remains challenging. Here we have developed Rho-seq, an integrated pipeline detecting a range of modifications through differential modification-dependent rhodamine labeling. Using Rho-seq, we confirm that the reduction of uridine to dihydrouridine (D) by the Dus reductase enzymes targets tRNAs in E. coli and fission yeast. We find that the D modification is also present on fission yeast mRNAs, particularly those encoding cytoskeleton-related proteins, which is supported by large-scale proteome analyses and ribosome profiling. We show that the α-tubulin encoding mRNA nda2 undergoes Dus3-dependent dihydrouridylation, which affects its translation. The absence of the modification on nda2 mRNA strongly impacts meiotic chromosome segregation, resulting in low gamete viability. Applying Rho-seq to human cells revealed that tubulin mRNA dihydrouridylation is evolutionarily conserved.

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