Waltz, F.* ; Righetto, R.D.* ; Lamm, L. ; Salinas-Giegé, T.* ; Kelley, R.K.* ; Zhang, X.* ; Obr, M.* ; Khavnekar, S.* ; Kotecha, A.* ; Engel, B.D.*
In-cell architecture of the mitochondrial respiratory chain.
Science 387, 1296-1301 (2025)
Mitochondria regenerate adenosine triphosphate (ATP) through oxidative phosphorylation. This process is carried out by five membrane-bound complexes collectively known as the respiratory chain, working in concert to transfer electrons and pump protons. The precise organization of these complexes in native cells is debated. We used in situ cryo-electron tomography to visualize the native structures and organization of several major mitochondrial complexes in Chlamydomonas reinhardtii cells. ATP synthases and respiratory complexes segregate into curved and flat crista membrane domains, respectively. Respiratory complexes I, III, and IV assemble into a respirasome supercomplex, from which we determined a native 5-angstrom (Å) resolution structure showing binding of electron carrier cytochrome c. Combined with single-particle cryo-electron microscopy at 2.4-Å resolution, we model how the respiratory complexes organize inside native mitochondria.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Cytochrome-c-oxidase; Complex-i; Electron-microscopy; Coupling Mechanism; Atp Synthase; Situ; Supercomplex; Phosphorylation; Visualization; Organization
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2025
Prepublished im Jahr
0
HGF-Berichtsjahr
2025
ISSN (print) / ISBN
0036-8075
e-ISSN
1095-9203
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 387,
Heft: 6740,
Seiten: 1296-1301
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Association for the Advancement of Science (AAAS)
Verlagsort
1200 New York Ave, Nw, Washington, Dc 20005 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30205 - Bioengineering and Digital Health
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-530006-001
Förderungen
University of Basel Biozentrum
ERC consolidator grant
SNSF Ambizione grant
Swiss Postdoctoral Fellowship
Swiss National Science Foundation
Copyright
Erfassungsdatum
2025-05-09