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- PDB-7var: V1EG domain of V/A-ATPase from Thermus thermophilus at low ATP co... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7var | |||||||||||||||||||||
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Title | V1EG domain of V/A-ATPase from Thermus thermophilus at low ATP concentration, state1-1 | |||||||||||||||||||||
![]() | (V-type ATP synthase ...) x 6 | |||||||||||||||||||||
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Function / homology | ![]() proton-transporting two-sector ATPase complex, catalytic domain / proton-transporting ATP synthase complex / proton motive force-driven plasma membrane ATP synthesis / ![]() ![]() ![]() Similarity search - Function | |||||||||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||||||||
Method | ![]() ![]() ![]() | |||||||||||||||||||||
![]() | Kishikawa, J. / Nakanishi, A. / Nakano, A. / Saeki, S. / Furuta, A. / Kato, T. / Mitsuoka, K. / Yokoyama, K. | |||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural snapshots of V/A-ATPase reveal the rotary catalytic mechanism of rotary ATPases. Authors: J Kishikawa / A Nakanishi / A Nakano / S Saeki / A Furuta / T Kato / K Mistuoka / K Yokoyama / ![]() Abstract: V/A-ATPase is a motor protein that shares a common rotary catalytic mechanism with FF ATP synthase. When powered by ATP hydrolysis, the V domain rotates the central rotor against the AB hexamer, ...V/A-ATPase is a motor protein that shares a common rotary catalytic mechanism with FF ATP synthase. When powered by ATP hydrolysis, the V domain rotates the central rotor against the AB hexamer, composed of three catalytic AB dimers adopting different conformations (AB, AB, and AB). Here, we report the atomic models of 18 catalytic intermediates of the V domain of V/A-ATPase under different reaction conditions, determined by single particle cryo-EM. The models reveal that the rotor does not rotate immediately after binding of ATP to the V. Instead, three events proceed simultaneously with the 120˚ rotation of the shaft: hydrolysis of ATP in AB, zipper movement in AB by the binding ATP, and unzipper movement in AB with release of both ADP and Pi. This indicates the unidirectional rotation of V/A-ATPase by a ratchet-like mechanism owing to ATP hydrolysis in AB, rather than the power stroke model proposed previously for F-ATPase. | |||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 631.9 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 31860MC ![]() 7vaiC ![]() 7vajC ![]() 7vakC ![]() 7valC ![]() 7vamC ![]() 7vanC ![]() 7vaoC ![]() 7vapC ![]() 7vaqC ![]() 7vasC ![]() 7vatC ![]() 7vauC ![]() 7vavC ![]() 7vawC ![]() 7vaxC ![]() 7vayC ![]() 7vb0C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-V-type ATP synthase ... , 6 types, 12 molecules ABCDEFGHIKJL
#1: Protein | Mass: 63669.957 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() References: UniProt: Q56403, ![]() #2: Protein | Mass: 53219.500 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() #3: Protein | | Mass: 24715.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() #4: Protein | | Mass: 11294.904 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() #5: Protein | Mass: 13166.218 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() #6: Protein | Mass: 20645.582 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
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-Non-polymers , 3 types, 4 molecules ![](data/chem/img/ADP.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/ATP.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/ATP.gif)
#7: Chemical | ChemComp-ADP / ![]() | ||
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#8: Chemical | #9: Chemical | ChemComp-ATP / | ![]() |
-Details
Has ligand of interest | Y |
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Sequence details | For V-ATPase subunit A, the bacterium has two mutations in its genome (S232A and T235S). |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: V/A-ATPase from Thermus thermophilus at low ATP concentration, state1-1 Type: COMPLEX / Entity ID: #1-#6 / Source: NATURAL |
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Molecular weight | Value: 0.5 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() ![]() |
Buffer solution | pH: 8 / Details: Buffer contains 50 micromolar ATP. |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() |
Specimen support | Grid material: MOLYBDENUM / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification![]() | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() ![]() |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 5 sec. / Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1671397 | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry![]() | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 42167 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL Details: The atomic model built in this study was used as an initial model. | ||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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