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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-4270 | |||||||||
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| Title | Chloroplast F1Fo conformation 1 | |||||||||
Map data | chloroplast F1Fo conformation 1 | |||||||||
Sample |
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Keywords | ATP synthase / membrane protein complex / molecular motor / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationphotosynthetic electron transport in photosystem I / photosynthetic electron transport in photosystem II / chloroplast thylakoid membrane / proton motive force-driven ATP synthesis / proton-transporting two-sector ATPase complex, proton-transporting domain / proton motive force-driven mitochondrial ATP synthesis / proton-transporting ATPase activity, rotational mechanism / H+-transporting two-sector ATPase / proton-transporting ATP synthase complex / proton-transporting ATP synthase activity, rotational mechanism ...photosynthetic electron transport in photosystem I / photosynthetic electron transport in photosystem II / chloroplast thylakoid membrane / proton motive force-driven ATP synthesis / proton-transporting two-sector ATPase complex, proton-transporting domain / proton motive force-driven mitochondrial ATP synthesis / proton-transporting ATPase activity, rotational mechanism / H+-transporting two-sector ATPase / proton-transporting ATP synthase complex / proton-transporting ATP synthase activity, rotational mechanism / ADP binding / lipid binding / ATP hydrolysis activity / mitochondrion / ATP binding / plasma membrane Similarity search - Function | |||||||||
| Biological species | Spinacia oleracea (spinach) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.15 Å | |||||||||
Authors | Hahn A / Vonck J | |||||||||
Citation | Journal: Science / Year: 2018Title: Structure, mechanism, and regulation of the chloroplast ATP synthase. Authors: Alexander Hahn / Janet Vonck / Deryck J Mills / Thomas Meier / Werner Kühlbrandt / ![]() Abstract: The chloroplast adenosine triphosphate (ATP) synthase uses the electrochemical proton gradient generated by photosynthesis to produce ATP, the energy currency of all cells. Protons conducted through ...The chloroplast adenosine triphosphate (ATP) synthase uses the electrochemical proton gradient generated by photosynthesis to produce ATP, the energy currency of all cells. Protons conducted through the membrane-embedded F motor drive ATP synthesis in the F head by rotary catalysis. We determined the high-resolution structure of the complete cFF complex by cryo-electron microscopy, resolving side chains of all 26 protein subunits, the five nucleotides in the F head, and the proton pathway to and from the rotor ring. The flexible peripheral stalk redistributes differences in torsional energy across three unequal steps in the rotation cycle. Plant ATP synthase is autoinhibited by a β-hairpin redox switch in subunit γ that blocks rotation in the dark. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_4270.map.gz | 153.3 MB | EMDB map data format | |
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| Header (meta data) | emd-4270-v30.xml emd-4270.xml | 27.5 KB 27.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_4270_fsc.xml | 12.2 KB | Display | FSC data file |
| Images | emd_4270.png | 158.8 KB | ||
| Masks | emd_4270_msk_1.map | 163.6 MB | Mask map | |
| Filedesc metadata | emd-4270.cif.gz | 7.4 KB | ||
| Others | emd_4270_half_map_1.map.gz emd_4270_half_map_2.map.gz | 129.3 MB 129.4 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4270 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4270 | HTTPS FTP |
-Validation report
| Summary document | emd_4270_validation.pdf.gz | 934.2 KB | Display | EMDB validaton report |
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| Full document | emd_4270_full_validation.pdf.gz | 933.8 KB | Display | |
| Data in XML | emd_4270_validation.xml.gz | 19.8 KB | Display | |
| Data in CIF | emd_4270_validation.cif.gz | 26.3 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4270 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4270 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6fkfMC ![]() 4271C ![]() 4272C ![]() 4273C ![]() 6fkhC ![]() 6fkiC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_4270.map.gz / Format: CCP4 / Size: 163.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | chloroplast F1Fo conformation 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.053 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
| File | emd_4270_msk_1.map | ||||||||||||
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-Half map: #1
| File | emd_4270_half_map_1.map | ||||||||||||
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-Half map: #2
| File | emd_4270_half_map_2.map | ||||||||||||
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Sample components
+Entire : Chloroplast ATP synthase
+Supramolecule #1: Chloroplast ATP synthase
+Macromolecule #1: ATP synthase subunit alpha, chloroplastic
+Macromolecule #2: ATP synthase subunit beta, chloroplastic
+Macromolecule #3: ATP synthase gamma chain, chloroplastic
+Macromolecule #4: ATP synthase delta chain, chloroplastic
+Macromolecule #5: ATP synthase subunit b', chloroplastic
+Macromolecule #6: ATP synthase subunit b, chloroplastic
+Macromolecule #7: ATP synthase subunit a, chloroplastic
+Macromolecule #8: ATP synthase subunit c, chloroplastic
+Macromolecule #9: ATP synthase epsilon chain, chloroplastic
+Macromolecule #10: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #11: MAGNESIUM ION
+Macromolecule #12: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #13: water
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 8 Component:
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| Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 15 sec. / Pretreatment - Atmosphere: AIR | ||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 70 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Number real images: 6254 / Average exposure time: 62.0 sec. / Average electron dose: 25.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Calibrated defocus max: 2.5 µm / Calibrated defocus min: 1.5 µm / Calibrated magnification: 132953 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 75000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Details | real space refinement |
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| Refinement | Space: REAL / Protocol: AB INITIO MODEL |
| Output model | ![]() PDB-6fkf: |
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About Yorodumi



Keywords
Spinacia oleracea (spinach)
Authors
Citation
UCSF Chimera
















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