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.

Basic information

Original name

An ancestral interaction module promotes oligomerization in divergent mitochondrial ATP synthases

Authors

GAHURA, Ondrej, Alexander MUHLEIP, Carolina HIERRO-YAP, Brian PANICUCCI, Minal JAIN, David HOLLAUS, Martina SLAPNICKOVA, Alena ZIKOVA and Alexey AMUNTS

Edition

Nature Communications, London, Nature Publishing Group, 2022, 2041-1723

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 16.600

RIV identification code

RIV/00216224:14740/22:00128731

Organization unit

Central European Institute of Technology

UT WoS

000866124200004

Keywords in English

TRYPANOSOMA-BRUCEIMODELDIMERRNAVALIDATIONSOFTWARECOMPLEXCHAIN

Tags

International impact, Reviewed
Změněno: 27/2/2023 20:37, Mgr. Pavla Foltynová, Ph.D.

Abstract

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.

Links

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