Translational contributions to tissue specificity in rhythmic and constitutive gene expression.

Détails

Ressource 1Télécharger: Additional_File_1.pdf (4749.66 [Ko])
Etat: Serval
Version: Final published version
Document(s) secondaire(s)
Télécharger: Additional_File_1.pdf (32661.47 [Ko])
Etat: Serval
Version: Supplementary document
ID Serval
serval:BIB_3F3B91FFCF68
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Compte-rendu: analyse d'une oeuvre publiée.
Collection
Publications
Titre
Translational contributions to tissue specificity in rhythmic and constitutive gene expression.
Périodique
Genome biology
Auteur(s)
Castelo-Szekely V., Arpat A.B., Janich P., Gatfield D.
ISSN
1474-760X (Electronic)
ISSN-L
1474-7596
Statut éditorial
Publié
Date de publication
16/06/2017
Peer-reviewed
Oui
Volume
18
Numéro
1
Pages
116
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Résumé
The daily gene expression oscillations that underlie mammalian circadian rhythms show striking differences between tissues and involve post-transcriptional regulation. Both aspects remain poorly understood. We have used ribosome profiling to explore the contribution of translation efficiency to temporal gene expression in kidney and contrasted our findings with liver data available from the same mice.
Rhythmic translation of constantly abundant messenger RNAs (mRNAs) affects largely non-overlapping transcript sets with distinct phase clustering in the two organs. Moreover, tissue differences in translation efficiency modulate the timing and amount of protein biosynthesis from rhythmic mRNAs, consistent with organ specificity in clock output gene repertoires and rhythmicity parameters. Our comprehensive datasets provided insights into translational control beyond temporal regulation. Between tissues, many transcripts show differences in translation efficiency, which are, however, of markedly smaller scale than mRNA abundance differences. Tissue-specific changes in translation efficiency are associated with specific transcript features and, intriguingly, globally counteracted and compensated transcript abundance variations, leading to higher similarity at the level of protein biosynthesis between both tissues.
We show that tissue specificity in rhythmic gene expression extends to the translatome and contributes to define the identities, the phases and the expression levels of rhythmic protein biosynthesis. Moreover, translational compensation of transcript abundance divergence leads to overall higher similarity at the level of protein production across organs. The unique resources provided through our study will serve to address fundamental questions of post-transcriptional control and differential gene expression in vivo.

Mots-clé
Animals, Circadian Clocks/genetics, Circadian Rhythm/genetics, Gene Expression Regulation, Developmental, Kidney/metabolism, Liver/metabolism, Mice, Protein Biosynthesis, RNA, Messenger/genetics, Ribosomes/genetics, Transcriptome/genetics, Circadian clocks, Kidney, Liver, Ribosome profiling, Translation
Pubmed
Web of science
Open Access
Oui
Création de la notice
08/05/2017 14:21
Dernière modification de la notice
08/05/2019 17:32
Données d'usage