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http://purl.uniprot.org/citations/36952377http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/36952377http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/36952377http://www.w3.org/2000/01/rdf-schema#comment"Respiratory complex I is a proton-pumping oxidoreductase key to bioenergetic metabolism. Biochemical studies have found a divide in the behavior of complex I in metazoans that aligns with the evolutionary split between Protostomia and Deuterostomia. Complex I from Deuterostomia including mammals can adopt a biochemically defined off-pathway 'deactive' state, whereas complex I from Protostomia cannot. The presence of off-pathway states complicates the interpretation of structural results and has led to considerable mechanistic debate. Here, we report the structure of mitochondrial complex I from the thoracic muscles of the model protostome Drosophila melanogaster. We show that although D. melanogaster complex I (Dm-CI) does not have a NEM-sensitive deactive state, it does show slow activation kinetics indicative of an off-pathway resting state. The resting-state structure of Dm-CI from the thoracic muscle reveals multiple conformations. We identify a helix-locked state in which an N-terminal α-helix on the NDUFS4 subunit wedges between the peripheral and membrane arms. Comparison of the Dm-CI structure and conformational states to those observed in bacteria, yeast, and mammals provides insight into the roles of subunits across organisms, explains why the Dm-CI off-pathway resting state is NEM insensitive, and raises questions regarding current mechanistic models of complex I turnover."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.org/dc/terms/identifier"doi:10.7554/elife.84415"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.org/dc/terms/identifier"doi:10.7554/elife.84415"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Letts J.A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Letts J.A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Owusu-Ansah E."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Owusu-Ansah E."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Padavannil A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Padavannil A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Murari A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Murari A."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Rhooms S.K."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/author"Rhooms S.K."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/date"2023"xsd:gYear
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/date"2023"xsd:gYear
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/name"Elife"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/name"Elife"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/pages"e84415"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/pages"e84415"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/title"Resting mitochondrial complex I from Drosophila melanogaster adopts a helix-locked state."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/title"Resting mitochondrial complex I from Drosophila melanogaster adopts a helix-locked state."xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/volume"12"xsd:string
http://purl.uniprot.org/citations/36952377http://purl.uniprot.org/core/volume"12"xsd:string