+検索条件
-Structure paper
| タイトル | Structures of 's respiratory chain reveal the diversity of eukaryotic core metabolism. |
|---|---|
| ジャーナル・号・ページ | Science, Vol. 376, Issue 6595, Page 831-839, Year 2022 |
| 掲載日 | 2022年5月20日 |
著者 | Long Zhou / María Maldonado / Abhilash Padavannil / Fei Guo / James A Letts / ![]() |
| PubMed 要旨 | Respiration is a core biological energy-converting process whose last steps are carried out by a chain of multisubunit complexes in the inner mitochondrial membrane. To probe the functional and ...Respiration is a core biological energy-converting process whose last steps are carried out by a chain of multisubunit complexes in the inner mitochondrial membrane. To probe the functional and structural diversity of eukaryotic respiration, we examined the respiratory chain of the ciliate (Tt). Using cryo-electron microscopy on a mixed sample, we solved structures of a supercomplex between Tt complex I (Tt-CI) and Tt-CIII (Tt-SC I+III) and a structure of Tt-CIV. Tt-SC I+III (~2.3 megadaltons) is a curved assembly with structural and functional symmetry breaking. Tt-CIV is a ~2.7-megadalton dimer with more than 50 subunits per protomer, including mitochondrial carriers and a TIM8-TIM13-like domain. Our structural and functional study of the respiratory chain reveals divergence in key components of eukaryotic respiration, thereby expanding our understanding of core metabolism. |
リンク | Science / PubMed:35357889 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 2.6 - 3.43 Å |
| 構造データ | EMDB-25882, PDB-7tgh: EMDB-32325, PDB-7w5z: ![]() EMDB-32631: Cryo-EM structure of ATP synthase dimer from Tetrahymena thermophila ![]() EMDB-32632: Cryo-EM structure of ATP synthase dimer from Tetrahymena thermophila |
| 化合物 | ![]() ChemComp-CDL: ![]() ChemComp-PC1: ![]() ChemComp-HEM: ![]() ChemComp-HEC: ![]() ChemComp-FES: ![]() ChemComp-3PE: ![]() ChemComp-ZN: ![]() ChemComp-NDP: ![]() ChemComp-ZMP: ![]() ChemComp-ADP: ![]() ChemComp-SF4: ![]() ChemComp-FMN: ![]() ChemComp-HEA: ![]() ChemComp-CU: ![]() ChemComp-MG: |
| 由来 |
|
キーワード | MEMBRANE PROTEIN / Mitochondrial respiration / Electron transport chain / Oxidoreductase / Super-complex CI+III2 / ELECTRON TRANSPORT / cytochrome c oxidase / mitochondrial carrier / membrane complex |
ムービー
コントローラー
構造ビューア
万見文献について



著者

リンク






















キーワード