Featured Publications
Combinatorial GxGxE CRISPR screen identifies SLC25A39 in mitochondrial glutathione transport linking iron homeostasis to OXPHOS
Shi X, Reinstadler B, Shah H, To TL, Byrne K, Summer L, Calvo SE, Goldberger O, Doench JG, Mootha VK, Shen H. Combinatorial GxGxE CRISPR screen identifies SLC25A39 in mitochondrial glutathione transport linking iron homeostasis to OXPHOS. Nature Communications 2022, 13: 2483. PMID: 35513392, PMCID: PMC9072411, DOI: 10.1038/s41467-022-30126-9.Peer-Reviewed Original ResearchConceptsDe novo purine biosynthesisMitochondrial iron uptakeStructure-guided mutagenesisNovo purine biosynthesisMetabolic stateMitochondrial glutathione transportGlutathione importGenetic interactionsGenetic perturbationsDifferent metabolic environmentsFitness defectsLack of substrateGene interactionsMitochondrial OXPHOSMitochondrial membranePurine biosynthesisCarrier familyTransport assaysKO cellsIron uptakeGlutathione transportTransport activityIron homeostasisGlutathione homeostasisGenes
2023
Dual regulation of SLC25A39 by AFG3L2 and iron controls mitochondrial glutathione homeostasis
Shi X, DeCiucis M, Grabinska K, Kanyo J, Liu A, Lam T, Shen H. Dual regulation of SLC25A39 by AFG3L2 and iron controls mitochondrial glutathione homeostasis. Molecular Cell 2023, 84: 802-810.e6. PMID: 38157846, PMCID: PMC10922821, DOI: 10.1016/j.molcel.2023.12.008.Peer-Reviewed Original ResearchProtein quality controlMitochondrial protein quality controlDual regulationMetabolic compartmentalizationIron homeostasisMitochondrial iron-sulfur clustersIron-sulfur clustersMitochondrial transportersProtein regulationMammalian cellsCRISPR knockoutCysteine residuesTransporter regulationLoop 1SLC25A39Glutathione homeostasisMetabolic sensingGlutathione uptakeMature neuronsProtein levelsHomeostasisRegulationAFG3L2Biochemical featuresMitochondrial glutathione levels