+Open data
-Basic information
Entry | Database: PDB / ID: 6vm1 | ||||||
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Title | Chloroplast ATP synthase (C3, CF1FO) | ||||||
Components | (ATP synthase ...) x 9 | ||||||
Keywords | PHOTOSYNTHESIS/TRANSLOCASE / CF1FO / ATP synthase / PHOTOSYNTHESIS / PHOTOSYNTHESIS-TRANSLOCASE complex | ||||||
Function / homology | Function and homology information : / chloroplast thylakoid membrane / proton-transporting ATP synthase complex, coupling factor F(o) / proton motive force-driven ATP synthesis / proton motive force-driven mitochondrial ATP synthesis / proton transmembrane transporter activity / proton-transporting ATP synthase complex, catalytic core F(1) / H+-transporting two-sector ATPase / proton-transporting ATPase activity, rotational mechanism / proton-transporting ATP synthase activity, rotational mechanism ...: / chloroplast thylakoid membrane / proton-transporting ATP synthase complex, coupling factor F(o) / proton motive force-driven ATP synthesis / proton motive force-driven mitochondrial ATP synthesis / proton transmembrane transporter activity / proton-transporting ATP synthase complex, catalytic core F(1) / H+-transporting two-sector ATPase / proton-transporting ATPase activity, rotational mechanism / proton-transporting ATP synthase activity, rotational mechanism / ADP binding / lipid binding / ATP hydrolysis activity / ATP binding / plasma membrane Similarity search - Function | ||||||
Biological species | Spinacia oleracea (spinach) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.9 Å | ||||||
Authors | Yang, J.-H. / Williams, D. / Kandiah, E. / Fromme, P. / Chiu, P.-L. | ||||||
Citation | Journal: Commun Biol / Year: 2020 Title: Structural basis of redox modulation on chloroplast ATP synthase. Authors: Jay-How Yang / Dewight Williams / Eaazhisai Kandiah / Petra Fromme / Po-Lin Chiu / Abstract: In higher plants, chloroplast ATP synthase has a unique redox switch on its γ subunit that modulates enzyme activity to limit ATP hydrolysis at night. To understand the molecular details of the ...In higher plants, chloroplast ATP synthase has a unique redox switch on its γ subunit that modulates enzyme activity to limit ATP hydrolysis at night. To understand the molecular details of the redox modulation, we used single-particle cryo-EM to determine the structures of spinach chloroplast ATP synthase in both reduced and oxidized states. The disulfide linkage of the oxidized γ subunit introduces a torsional constraint to stabilize the two β hairpin structures. Once reduced, free cysteines alleviate this constraint, resulting in a concerted motion of the enzyme complex and a smooth transition between rotary states to facilitate the ATP synthesis. We added an uncompetitive inhibitor, tentoxin, in the reduced sample to limit the flexibility of the enzyme and obtained high-resolution details. Our cryo-EM structures provide mechanistic insight into the redox modulation of the energy regulation activity of chloroplast ATP synthase. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6vm1.cif.gz | 700.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6vm1.ent.gz | 497.3 KB | Display | PDB format |
PDBx/mmJSON format | 6vm1.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6vm1_validation.pdf.gz | 817.2 KB | Display | wwPDB validaton report |
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Full document | 6vm1_full_validation.pdf.gz | 822.2 KB | Display | |
Data in XML | 6vm1_validation.xml.gz | 97.7 KB | Display | |
Data in CIF | 6vm1_validation.cif.gz | 171.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vm/6vm1 ftp://data.pdbj.org/pub/pdb/validation_reports/vm/6vm1 | HTTPS FTP |
-Related structure data
Related structure data | 21235MC 6vm4C 6vmbC 6vmdC 6vmgC 6vofC 6vogC 6vohC 6voiC 6vojC 6vokC 6volC 6vomC 6vonC 6vooC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-ATP synthase ... , 9 types, 26 molecules ABCDEFIJadegRQPONMZYXWVUTS
#1: Protein | Mass: 55505.199 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) References: UniProt: P06450, H+-transporting two-sector ATPase #2: Protein | Mass: 53797.367 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) References: UniProt: P00825, H+-transporting two-sector ATPase #3: Protein | | Mass: 21013.904 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P06453 #4: Protein | | Mass: 24487.596 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P31853 #5: Protein | | Mass: 27102.680 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P06451 #6: Protein | | Mass: 27708.582 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P11402 #7: Protein | | Mass: 14715.707 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P00833 #8: Protein | | Mass: 40119.066 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P05435 #9: Protein | Mass: 7977.366 Da / Num. of mol.: 14 / Source method: isolated from a natural source / Source: (natural) Spinacia oleracea (spinach) / References: UniProt: P69447 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Chloroplast ATP synthase / Type: COMPLEX / Details: Control rotary state 3 / Entity ID: all / Source: NATURAL |
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Molecular weight | Value: 0.59435 MDa / Experimental value: NO |
Source (natural) | Organism: Spinacia oleracea (spinach) / Tissue: Leaves |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 22500 X / Calibrated magnification: 48077 X / Nominal defocus max: -4000 nm / Nominal defocus min: -1500 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: BASIC |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 43.5 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
Software |
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 7.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 13947 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: BACKBONE TRACE | ||||||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 286 Å2 | ||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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