The Translational Landscape of the Human Heart.
Adolescent
Adult
Aged
Animals
Codon
/ genetics
Female
Gene Expression Regulation
HEK293 Cells
Humans
Infant
Male
Mice
Mice, Inbred C57BL
Middle Aged
Myocardium
/ metabolism
Open Reading Frames
/ genetics
Protein Biosynthesis
RNA, Circular
/ genetics
RNA, Long Noncoding
/ genetics
RNA, Messenger
/ genetics
Rats
Ribosomes
/ genetics
Young Adult
ORF detection
circRNAs
dilated cardiomyopathy
heart failure
human heart
lncRNAs
microproteins
protein-truncating variants
ribosome profiling
short ORFs
titin
translational regulation
translatome
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
27 06 2019
27 06 2019
Historique:
received:
05
11
2018
revised:
01
03
2019
accepted:
06
05
2019
pubmed:
4
6
2019
medline:
9
4
2020
entrez:
4
6
2019
Statut:
ppublish
Résumé
Gene expression in human tissue has primarily been studied on the transcriptional level, largely neglecting translational regulation. Here, we analyze the translatomes of 80 human hearts to identify new translation events and quantify the effect of translational regulation. We show extensive translational control of cardiac gene expression, which is orchestrated in a process-specific manner. Translation downstream of predicted disease-causing protein-truncating variants appears to be frequent, suggesting inefficient translation termination. We identify hundreds of previously undetected microproteins, expressed from lncRNAs and circRNAs, for which we validate the protein products in vivo. The translation of microproteins is not restricted to the heart and prominent in the translatomes of human kidney and liver. We associate these microproteins with diverse cellular processes and compartments and find that many locate to the mitochondria. Importantly, dozens of microproteins are translated from lncRNAs with well-characterized noncoding functions, indicating previously unrecognized biology.
Identifiants
pubmed: 31155234
pii: S0092-8674(19)30508-2
doi: 10.1016/j.cell.2019.05.010
pii:
doi:
Substances chimiques
Codon
0
RNA, Circular
0
RNA, Long Noncoding
0
RNA, Messenger
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
242-260.e29Subventions
Organisme : Medical Research Council
ID : MC_U120085815
Pays : United Kingdom
Organisme : Howard Hughes Medical Institute
Pays : United States
Organisme : British Heart Foundation
Pays : United Kingdom
Organisme : Department of Health
Pays : United Kingdom
Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.