Alternative assembly of respiratory complex II connects energy stress to metabolic checkpoints.
Ayenachew Bezawork-Geleta, He Wen, LanFeng Dong, Bing Yan, Jelena Vider, Stepana Boukalova, Linda Krobova, Katerina Vanova, Renata Zobalova, Margarita Sobol, Pavel Hozak, Silvia Magalhaes Novais, Veronika Caisova, Pavel Abaffy, Ravindra Naraine, Ying Pang, Thiri Zaw, Ping Zhang, Radek Sindelka, Mikael Kubista, Steven Zuryn, Mark P Molloy, Michael V Berridge, Karel Pacak, Jakub Rohlena, Sunghyouk Park, Jiri Neuzil
Author Information
Ayenachew Bezawork-Geleta: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia. a.bezawork-geleta@griffith.edu.au.
He Wen: Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518060, China.
LanFeng Dong: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia.
Bing Yan: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia.
Jelena Vider: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia. ORCID
Stepana Boukalova: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Linda Krobova: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Katerina Vanova: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Renata Zobalova: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Margarita Sobol: Institute of Molecular Genetics, Czech Academy of Sciences, Prague, 14220, Czech Republic.
Pavel Hozak: Institute of Molecular Genetics, Czech Academy of Sciences, Prague, 14220, Czech Republic.
Silvia Magalhaes Novais: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Veronika Caisova: Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, 20892, MD, USA.
Pavel Abaffy: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Ravindra Naraine: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Ying Pang: Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, 20892, MD, USA.
Thiri Zaw: Australian Proteome Analysis Facility, Macquarie University, North Ryde, 2109, NSW, Australia.
Ping Zhang: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia.
Radek Sindelka: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Mikael Kubista: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic.
Steven Zuryn: Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, University of Queensland, Brisbane, 4072, Qld, Australia.
Mark P Molloy: Australian Proteome Analysis Facility, Macquarie University, North Ryde, 2109, NSW, Australia.
Michael V Berridge: Malaghan Institute of Medical Research, Wellington, 6242, New Zealand.
Karel Pacak: Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, 20892, MD, USA.
Jakub Rohlena: Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 25250, Czech Republic. jakub.rohlena@ibt.cas.cz.
Sunghyouk Park: College of Pharmacy, Natural Product Research Institute, Seoul National University, Seoul, 08826, Korea. psh@snu.ac.kr.
Jiri Neuzil: School of Medical Sciences, Griffith University, Southport, 4222, Qld, Australia. j.neuzil@griffith.edu.au.
Cell growth and survival depend on a delicate balance between energy production and synthesis of metabolites. Here, we provide evidence that an alternative mitochondrial complex II (CII) assembly, designated as CII, serves as a checkpoint for metabolite biosynthesis under bioenergetic stress, with cells suppressing their energy utilization by modulating DNA synthesis and cell cycle progression. Depletion of CII leads to an imbalance in energy utilization and metabolite synthesis, as evidenced by recovery of the de novo pyrimidine pathway and unlocking cell cycle arrest from the S-phase. In vitro experiments are further corroborated by analysis of paraganglioma tissues from patients with sporadic, SDHA and SDHB mutations. These findings suggest that CII is a core complex inside mitochondria that provides homeostatic control of cellular metabolism depending on the availability of energy.