Regulation of UCP1 and Mitochondrial Metabolism in Brown Adipose Tissue by Reversible Succinylation.
Adipose Tissue, Brown
/ metabolism
Animals
Energy Metabolism
/ genetics
Gene Expression Regulation
Glucose
/ metabolism
Mice
Mice, Knockout
Mitochondria
/ genetics
Mitochondrial Proteins
/ genetics
Obesity
/ genetics
Proteomics
/ methods
Sirtuins
/ genetics
Succinic Acid
/ metabolism
Thermogenesis
/ genetics
Uncoupling Protein 1
/ genetics
UCP1
brown fat
mitochondria
succinylation
thermogenesis
Journal
Molecular cell
ISSN: 1097-4164
Titre abrégé: Mol Cell
Pays: United States
ID NLM: 9802571
Informations de publication
Date de publication:
16 05 2019
16 05 2019
Historique:
received:
24
07
2018
revised:
06
02
2019
accepted:
20
03
2019
pubmed:
20
4
2019
medline:
17
10
2019
entrez:
20
4
2019
Statut:
ppublish
Résumé
Brown adipose tissue (BAT) is rich in mitochondria and plays important roles in energy expenditure, thermogenesis, and glucose homeostasis. We find that levels of mitochondrial protein succinylation and malonylation are high in BAT and subject to physiological and genetic regulation. BAT-specific deletion of Sirt5, a mitochondrial desuccinylase and demalonylase, results in dramatic increases in global protein succinylation and malonylation. Mass spectrometry-based quantification of succinylation reveals that Sirt5 regulates the key thermogenic protein in BAT, UCP1. Mutation of the two succinylated lysines in UCP1 to acyl-mimetic glutamine and glutamic acid significantly decreases its stability and activity. The reduced function of UCP1 and other proteins in Sirt5KO BAT results in impaired mitochondria respiration, defective mitophagy, and metabolic inflexibility. Thus, succinylation of UCP1 and other mitochondrial proteins plays an important role in BAT and in regulation of energy homeostasis.
Identifiants
pubmed: 31000437
pii: S1097-2765(19)30225-4
doi: 10.1016/j.molcel.2019.03.021
pmc: PMC6525068
mid: NIHMS1525475
pii:
doi:
Substances chimiques
Mitochondrial Proteins
0
SIRT5 protein, mouse
0
Uncoupling Protein 1
0
Succinic Acid
AB6MNQ6J6L
Sirtuins
EC 3.5.1.-
Glucose
IY9XDZ35W2
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
844-857.e7Subventions
Organisme : NIDDK NIH HHS
ID : K01 DK120740
Pays : United States
Organisme : NIDDK NIH HHS
ID : R24 DK085610
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK036836
Pays : United States
Organisme : NICHD NIH HHS
ID : T32 HD083185
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK082659
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM051279
Pays : United States
Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.
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