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- W3122065877 abstract "Mitochondrial Ca2+ uptake is an important mediator of metabolism and cell death. Identification of components of the highly conserved mitochondrial Ca2+ uniporter has opened it up to genetic analysis in model organisms. Here, we report a comprehensive genetic characterisation of all known uniporter components conserved in Drosophila. While loss of pore-forming MCU or EMRE abolishes fast mitochondrial Ca2+ uptake, this results in only mild phenotypes when young, despite shortened lifespans. In contrast, loss of the MICU1 gatekeeper is developmental lethal, consistent with unregulated Ca2+ uptake. Mutants for the neuronally-restricted regulator MICU3 are viable with mild neurological impairment. Genetic interaction analyses reveal that MICU1 and MICU3 are not functionally interchangeable. More surprisingly, loss of MCU or EMRE does not suppress MICU1 mutant lethality, suggesting that this results from uniporter-independent functions. Our data interrogates the interplay between components of the mitochondrial Ca2+ uniporter, and sheds light on their physiological requirements in vivo." @default.
- W3122065877 created "2021-02-01" @default.
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- W3122065877 date "2018-01-01" @default.
- W3122065877 modified "2023-10-17" @default.
- W3122065877 title "Comprehensive Genetic Characterisation of Mitochondrial Ca2+ Uniporter Components Reveals Their Different Physiological Requirements in Vivo" @default.
- W3122065877 doi "https://doi.org/10.2139/ssrn.3305558" @default.
- W3122065877 hasPublicationYear "2018" @default.
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