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-Structure paper
Title | Structure of the human ATP synthase. |
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Journal, issue, pages | Mol Cell, Vol. 83, Issue 12, Page 2137-22147.e4, Year 2023 |
Publish date | Jun 15, 2023 |
Authors | Yuezheng Lai / Yuying Zhang / Shan Zhou / Jinxu Xu / Zhanqiang Du / Ziyan Feng / Long Yu / Ziqing Zhao / Weiwei Wang / Yanting Tang / Xiuna Yang / Luke W Guddat / Fengjiang Liu / Yan Gao / Zihe Rao / Hongri Gong / |
PubMed Abstract | Biological energy currency ATP is produced by FF-ATP synthase. However, the molecular mechanism for human ATP synthase action remains unknown. Here, we present snapshot images for three main ...Biological energy currency ATP is produced by FF-ATP synthase. However, the molecular mechanism for human ATP synthase action remains unknown. Here, we present snapshot images for three main rotational states and one substate of human ATP synthase using cryoelectron microscopy. These structures reveal that the release of ADP occurs when the β subunit of FF-ATP synthase is in the open conformation, showing how ADP binding is coordinated during synthesis. The accommodation of the symmetry mismatch between F and F motors is resolved by the torsional flexing of the entire complex, especially the γ subunit, and the rotational substep of the c subunit. Water molecules are identified in the inlet and outlet half-channels, suggesting that the proton transfer in these two half-channels proceed via a Grotthus mechanism. Clinically relevant mutations are mapped to the structure, showing that they are mainly located at the subunit-subunit interfaces, thus causing instability of the complex. |
External links | Mol Cell / PubMed:37244256 |
Methods | EM (single particle) |
Resolution | 2.53 - 8.0 Å |
Structure data | EMDB-34564, PDB-8h9e: EMDB-34565, PDB-8h9f: EMDB-34566, PDB-8h9g: EMDB-34568, PDB-8h9i: EMDB-34569, PDB-8h9j: EMDB-34570, PDB-8h9k: EMDB-34572, PDB-8h9l: EMDB-34573, PDB-8h9m: EMDB-34574, PDB-8h9n: EMDB-34576, PDB-8h9p: EMDB-34577, PDB-8h9q: EMDB-34578, PDB-8h9r: EMDB-34580, PDB-8h9s: EMDB-34581, PDB-8h9t: EMDB-34582, PDB-8h9u: EMDB-34583, PDB-8h9v: EMDB-34584: Human ATP synthase dimer |
Chemicals | ChemComp-ATP: ChemComp-MG: ChemComp-ADP: ChemComp-CDL: ChemComp-3PH: |
Source |
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Keywords | MEMBRANE PROTEIN / ATP synthase |