Tissue- and stage-specific landscape of the mouse translatome.

Nucleic Acids Research
Hongwei WangZhi Xie

Abstract

The current understanding of how overall principles of translational control govern the embryo-to-adult transition in mammals is still far from comprehensive. Herein we profiled the translatomes and transcriptomes of six tissues from the mice at embryonic and adult stages and presented the first report of tissue- and stage-specific translational landscape in mice. We quantified the extent of gene expression divergence among different expression layers, tissues and stages, detected significant changes in gene composition and function underlying these divergences and revealed the changing architecture of translational regulation. We further showed that dynamic translational regulation can be largely achieved via modulation of translational efficiency. Translational efficiency could be altered by alternative splicing (AS), upstream and downstream open reading frames (uORFs and dORFs). We revealed AS-mediated translational repression that was exerted in an event type-dependent manner. uORFs and dORFs exhibited mutually exclusive usage and the opposing effects of translational regulation. Furthermore, we discovered many novel microproteins encoded by long noncoding RNAs and demonstrated their regulatory potential and functional rele...Continue Reading

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Citations

Jul 15, 2021·Journal of the American Society for Mass Spectrometry·Lei ChenQian Zhao
Sep 2, 2021·Nucleic Acids Research·Kaining ChenZhi Xie
Dec 5, 2021·Chembiochem : a European Journal of Chemical Biology·Lei ChenQian Zhao

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Software Mentioned

Sickle
DEP R package
Tophat2
CASAVA
featureCounts
DESeq2 R package
GENCODE
BLASTp
Cutadapt
DESeq2

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