2022
An ancestral interaction module promotes oligomerization in divergent mitochondrial ATP synthases
GAHURA, Ondrej, Alexander MUHLEIP, Carolina HIERRO-YAP, Brian PANICUCCI, Minal JAIN et. al.Základní údaje
Originální název
An ancestral interaction module promotes oligomerization in divergent mitochondrial ATP synthases
Autoři
GAHURA, Ondrej, Alexander MUHLEIP, Carolina HIERRO-YAP, Brian PANICUCCI, Minal JAIN, David HOLLAUS, Martina SLAPNICKOVA, Alena ZIKOVA a Alexey AMUNTS
Vydání
Nature Communications, London, Nature Publishing Group, 2022, 2041-1723
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 16.600
Kód RIV
RIV/00216224:14740/22:00128731
Organizační jednotka
Středoevropský technologický institut
UT WoS
000866124200004
Klíčová slova anglicky
TRYPANOSOMA-BRUCEIMODELDIMERRNAVALIDATIONSOFTWARECOMPLEXCHAIN
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 2. 2023 20:37, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Mitochondrial ATP synthase forms stable dimers arranged into oligomeric assemblies that generate the inner-membrane curvature essential for efficient energy conversion. Here, we report cryo-EM structures of the intact ATP synthase dimer from Trypanosoma brucei in ten different rotational states. The model consists of 25 subunits, including nine lineage-specific, as well as 36 lipids. The rotary mechanism is influenced by the divergent peripheral stalk, conferring a greater conformational flexibility. Proton transfer in the lumenal half-channel occurs via a chain of five ordered water molecules. The dimerization interface is formed by subunit-g that is critical for interactions but not for the catalytic activity. Although overall dimer architecture varies among eukaryotes, we find that subunit-g together with subunit-e form an ancestral oligomerization motif, which is shared between the trypanosomal and mammalian lineages. Therefore, our data defines the subunit-g/e module as a structural component determining ATP synthase oligomeric assemblies. Mitochondrial ATP synthase assemble into oligomers. Here, authors resolve the structure of trypanosomal ATP synthase, showing that its dimerization is essential for function and evolutionary conserved.
Návaznosti
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