+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-21855 | |||||||||
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Title | E. coli ATP synthase State 3b | |||||||||
Map data | ||||||||||
Sample |
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Keywords | F1Fo ATP synthase / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information proton-transporting ATP synthase complex / proton motive force-driven plasma membrane ATP synthesis / proton-transporting ATP synthase complex, coupling factor F(o) / proton motive force-driven ATP synthesis / proton-transporting ATP synthase complex, catalytic core F(1) / membrane => GO:0016020 / H+-transporting two-sector ATPase / proton-transporting ATPase activity, rotational mechanism / proton-transporting ATP synthase activity, rotational mechanism / ADP binding ...proton-transporting ATP synthase complex / proton motive force-driven plasma membrane ATP synthesis / proton-transporting ATP synthase complex, coupling factor F(o) / proton motive force-driven ATP synthesis / proton-transporting ATP synthase complex, catalytic core F(1) / membrane => GO:0016020 / H+-transporting two-sector ATPase / proton-transporting ATPase activity, rotational mechanism / proton-transporting ATP synthase activity, rotational mechanism / ADP binding / hydrolase activity / lipid binding / ATP hydrolysis activity / ATP binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
Authors | Stewart AG / Sobti M | |||||||||
Funding support | Australia, 1 items
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Citation | Journal: Nat Commun / Year: 2020 Title: Cryo-EM structures provide insight into how E. coli FF ATP synthase accommodates symmetry mismatch. Authors: Meghna Sobti / James L Walshe / Di Wu / Robert Ishmukhametov / Yi C Zeng / Carol V Robinson / Richard M Berry / Alastair G Stewart / Abstract: FF ATP synthase functions as a biological rotary generator that makes a major contribution to cellular energy production. It comprises two molecular motors coupled together by a central and a ...FF ATP synthase functions as a biological rotary generator that makes a major contribution to cellular energy production. It comprises two molecular motors coupled together by a central and a peripheral stalk. Proton flow through the F motor generates rotation of the central stalk, inducing conformational changes in the F motor that catalyzes ATP production. Here we present nine cryo-EM structures of E. coli ATP synthase to 3.1-3.4 Å resolution, in four discrete rotational sub-states, which provide a comprehensive structural model for this widely studied bacterial molecular machine. We observe torsional flexing of the entire complex and a rotational sub-step of F associated with long-range conformational changes that indicates how this flexibility accommodates the mismatch between the 3- and 10-fold symmetries of the F and F motors. We also identify density likely corresponding to lipid molecules that may contribute to the rotor/stator interaction within the F motor. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_21855.map.gz | 151.8 MB | EMDB map data format | |
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Header (meta data) | emd-21855-v30.xml emd-21855.xml | 19.7 KB 19.7 KB | Display Display | EMDB header |
Images | emd_21855.png | 47.5 KB | ||
Filedesc metadata | emd-21855.cif.gz | 8.3 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-21855 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-21855 | HTTPS FTP |
-Validation report
Summary document | emd_21855_validation.pdf.gz | 609.9 KB | Display | EMDB validaton report |
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Full document | emd_21855_full_validation.pdf.gz | 609.5 KB | Display | |
Data in XML | emd_21855_validation.xml.gz | 6.7 KB | Display | |
Data in CIF | emd_21855_validation.cif.gz | 7.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21855 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21855 | HTTPS FTP |
-Related structure data
Related structure data | 6wnrMC 6oqrC 6oqsC 6oqtC 6oquC 6oqvC 6oqwC 6pqvC 6vwkC 6wnqC C: citing same article (ref.) M: atomic model generated by this map |
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Similar 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_21855.map.gz / Format: CCP4 / Size: 163.6 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:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : E. coli ATP synthase
+Supramolecule #1: E. coli ATP synthase
+Macromolecule #1: ATP synthase subunit delta
+Macromolecule #2: ATP synthase subunit alpha
+Macromolecule #3: ATP synthase subunit b
+Macromolecule #4: ATP synthase epsilon chain
+Macromolecule #5: ATP synthase gamma chain
+Macromolecule #6: ATP synthase subunit beta
+Macromolecule #7: ATP synthase subunit c
+Macromolecule #8: ATP synthase subunit a
+Macromolecule #9: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #10: MAGNESIUM ION
+Macromolecule #11: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #12: PHOSPHATE ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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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 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: INSILICO MODEL |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 39486 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: PROJECTION MATCHING |