Cryo-EM structures of mitochondrial respiratory complex I from Drosophila melanogaster
Cryo-EM structures of mitochondrial respiratory complex I from Drosophila melanogaster
复制标题
果蝇线粒体呼吸复合物 I 的冷冻电镜结构
DOI:
10.1101/2022.11.01.514700
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Agip A
中科院分区:
文献类型:
--
作者:
Agip A
Respiratory complex I powers ATP synthesis by oxidative phosphorylation, exploiting the energy from NADH oxidation by ubiquinone to drive protons across an energy-transducing membrane. Drosophila melanogaster is a candidate model organism for complex I due to its high evolutionary conservation with the mammalian enzyme, well-developed genetic toolkit, and complex physiology for studies in specific cell types and tissues. Here, we isolate complex I from Drosophila and determine its structure, revealing a 43-subunit assembly with high structural homology to its 45-subunit mammalian counterpart, including a hitherto unknown homologue to subunit NDUFA3. The major conformational state of the Drosophila enzyme is the mammalian-type ‘ready-to-go’active resting state, with a fully ordered and enclosed ubiquinone-binding site, but a subtly altered global conformation related to changes in subunit ND6. The mammalian-type ‘deactive’pronounced resting state is not observed: in two minor states the ubiquinone-binding site is unchanged, but a deactive-type π-bulge is present in ND6-TMH3. Our detailed structural knowledge of Drosophila complex I provides a foundation for new approaches to disentangle mechanisms of complex I catalysis and regulation in bioenergetics and physiology.
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影响因子:
16.6
作者:
Soufari H;Parrot C;Kuhn L;Waltz F;Hashem Y
通讯作者:
Hashem Y
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Jiayu Wen;Soo Park;K. Wan;Charles Yu;Dayu Zhang;J. Carlson;L. Cherbas;B. Eads;David Miller;K. Mockaitis;Johnny Roberts;Carrie A. Davis;E. Frise;A. Hammonds;S. Olson;S. Shenker;David Sturgill;A. Samsonova;Richard Weiszmann;G. Robinson;Juan Hernandez;J. Andrews;P. Bickel;Piero Carninci;P. Cherbas;T. Gingeras;R. Hoskins;T. Kaufman;E. Lai;B. Oliver;N. Perrimon;B. Graveley;S. Celniker
通讯作者:
S. Celniker
DOI:
10.1097/iae.0000000000001602
发表时间:
2017
期刊:
Retina (Philadelphia, Pa.)
影响因子:
--
作者:
Todorich,Bozho;Thanos,Aristomenis;Yonekawa,Yoshihiro;Thomas,BenjaminJ;Faia,LisaJ;Chang,Emmanuel;Shulman,Julia;Olsen,KarlR;Blair,MichaelP;Shapiro,MichaelP;Ferrone,Philip;Vajzovic,Lejla;Toth,CynthiaA;Lee,ThomasC;Robinson,
通讯作者:
Robinson,
影响因子:
14.9
作者:
Tian W;Chen C;Lei X;Zhao J;Liang J
通讯作者:
Liang J
影响因子:
3.7
作者:
Cho J;Hur JH;Graniel J;Benzer S;Walker DW
通讯作者:
Walker DW