+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-27300 | |||||||||
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Title | E. coli ATP synthase imaged in 10mM MgATP State1 "down" | |||||||||
Map data | ||||||||||
Sample |
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Biological species | Escherichia coli (E. coli) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 7.2 Å | |||||||||
Authors | Sobti M / Stewart AG | |||||||||
Funding support | Australia, 1 items
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Citation | Journal: Commun Biol / Year: 2023 Title: Changes within the central stalk of E. coli FF ATP synthase observed after addition of ATP. Authors: Meghna Sobti / Yi C Zeng / James L Walshe / Simon H J Brown / Robert Ishmukhametov / Alastair G Stewart / Abstract: FF ATP synthase functions as a biological generator and makes a major contribution to cellular energy production. Proton flow generates rotation in the F motor that is transferred to the F motor to ...FF ATP synthase functions as a biological generator and makes a major contribution to cellular energy production. Proton flow generates rotation in the F motor that is transferred to the F motor to catalyze ATP production, with flexible F/F coupling required for efficient catalysis. FF ATP synthase can also operate in reverse, hydrolyzing ATP and pumping protons, and in bacteria this function can be regulated by an inhibitory ε subunit. Here we present cryo-EM data showing E. coli FF ATP synthase in different rotational and inhibited sub-states, observed following incubation with 10 mM MgATP. Our structures demonstrate how structural transitions within the inhibitory ε subunit induce torsional movement in the central stalk, thereby enabling its rotation within the F motor. This highlights the importance of the central rotor for flexible coupling of the F and F motors and provides further insight into the regulatory mechanism mediated by subunit ε. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_27300.map.gz | 151 MB | EMDB map data format | |
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Header (meta data) | emd-27300-v30.xml emd-27300.xml | 16.6 KB 16.6 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_27300_fsc.xml | 12.6 KB | Display | FSC data file |
Images | emd_27300.png | 67.4 KB | ||
Others | emd_27300_half_map_1.map.gz emd_27300_half_map_2.map.gz | 132.3 MB 132.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-27300 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27300 | HTTPS FTP |
-Validation report
Summary document | emd_27300_validation.pdf.gz | 891.6 KB | Display | EMDB validaton report |
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Full document | emd_27300_full_validation.pdf.gz | 891.2 KB | Display | |
Data in XML | emd_27300_validation.xml.gz | 19.4 KB | Display | |
Data in CIF | emd_27300_validation.cif.gz | 25.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27300 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27300 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_27300.map.gz / Format: CCP4 / Size: 166.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.079 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_27300_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_27300_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : ATP synthase
Entire | Name: ATP synthase |
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Components |
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-Supramolecule #1: ATP synthase
Supramolecule | Name: ATP synthase / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#10 |
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Source (natural) | Organism: Escherichia coli (E. coli) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 48.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |