---
_id: '11052'
abstract:
- lang: eng
text: In order to combat molecular damage, most cellular proteins undergo rapid
turnover. We have previously identified large nuclear protein assemblies that
can persist for years in post-mitotic tissues and are subject to age-related decline.
Here, we report that mitochondria can be long lived in the mouse brain and reveal
that specific mitochondrial proteins have half-lives longer than the average proteome.
These mitochondrial long-lived proteins (mitoLLPs) are core components of the
electron transport chain (ETC) and display increased longevity in respiratory
supercomplexes. We find that COX7C, a mitoLLP that forms a stable contact site
between complexes I and IV, is required for complex IV and supercomplex assembly.
Remarkably, even upon depletion of COX7C transcripts, ETC function is maintained
for days, effectively uncoupling mitochondrial function from ongoing transcription
of its mitoLLPs. Our results suggest that modulating protein longevity within
the ETC is critical for mitochondrial proteome maintenance and the robustness
of mitochondrial function.
article_processing_charge: No
article_type: original
author:
- first_name: Shefali
full_name: Krishna, Shefali
last_name: Krishna
- first_name: Rafael
full_name: Arrojo e Drigo, Rafael
last_name: Arrojo e Drigo
- first_name: Juliana S.
full_name: Capitanio, Juliana S.
last_name: Capitanio
- first_name: Ranjan
full_name: Ramachandra, Ranjan
last_name: Ramachandra
- first_name: Mark
full_name: Ellisman, Mark
last_name: Ellisman
- first_name: Martin W
full_name: HETZER, Martin W
id: 86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed
last_name: HETZER
orcid: 0000-0002-2111-992X
citation:
ama: Krishna S, Arrojo e Drigo R, Capitanio JS, Ramachandra R, Ellisman M, Hetzer
M. Identification of long-lived proteins in the mitochondria reveals increased
stability of the electron transport chain. Developmental Cell. 2021;56(21):P2952-2965.e9.
doi:10.1016/j.devcel.2021.10.008
apa: Krishna, S., Arrojo e Drigo, R., Capitanio, J. S., Ramachandra, R., Ellisman,
M., & Hetzer, M. (2021). Identification of long-lived proteins in the mitochondria
reveals increased stability of the electron transport chain. Developmental
Cell. Elsevier. https://doi.org/10.1016/j.devcel.2021.10.008
chicago: Krishna, Shefali, Rafael Arrojo e Drigo, Juliana S. Capitanio, Ranjan Ramachandra,
Mark Ellisman, and Martin Hetzer. “Identification of Long-Lived Proteins in the
Mitochondria Reveals Increased Stability of the Electron Transport Chain.” Developmental
Cell. Elsevier, 2021. https://doi.org/10.1016/j.devcel.2021.10.008.
ieee: S. Krishna, R. Arrojo e Drigo, J. S. Capitanio, R. Ramachandra, M. Ellisman,
and M. Hetzer, “Identification of long-lived proteins in the mitochondria reveals
increased stability of the electron transport chain,” Developmental Cell,
vol. 56, no. 21. Elsevier, p. P2952–2965.e9, 2021.
ista: Krishna S, Arrojo e Drigo R, Capitanio JS, Ramachandra R, Ellisman M, Hetzer
M. 2021. Identification of long-lived proteins in the mitochondria reveals increased
stability of the electron transport chain. Developmental Cell. 56(21), P2952–2965.e9.
mla: Krishna, Shefali, et al. “Identification of Long-Lived Proteins in the Mitochondria
Reveals Increased Stability of the Electron Transport Chain.” Developmental
Cell, vol. 56, no. 21, Elsevier, 2021, p. P2952–2965.e9, doi:10.1016/j.devcel.2021.10.008.
short: S. Krishna, R. Arrojo e Drigo, J.S. Capitanio, R. Ramachandra, M. Ellisman,
M. Hetzer, Developmental Cell 56 (2021) P2952–2965.e9.
date_created: 2022-04-07T07:43:14Z
date_published: 2021-11-08T00:00:00Z
date_updated: 2022-07-18T08:26:38Z
day: '08'
doi: 10.1016/j.devcel.2021.10.008
extern: '1'
external_id:
pmid:
- '34715012'
intvolume: ' 56'
issue: '21'
keyword:
- Developmental Biology
- Cell Biology
- General Biochemistry
- Genetics and Molecular Biology
- Molecular Biology
language:
- iso: eng
month: '11'
oa_version: None
page: P2952-2965.e9
pmid: 1
publication: Developmental Cell
publication_identifier:
issn:
- 1534-5807
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Identification of long-lived proteins in the mitochondria reveals increased
stability of the electron transport chain
type: journal_article
user_id: 72615eeb-f1f3-11ec-aa25-d4573ddc34fd
volume: 56
year: '2021'
...