J 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

Štítky

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

90127, velká výzkumná infrastruktura
Název: CIISB II