+Open data
-Basic information
Entry | Database: PDB / ID: 7njn | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Mycobacterium smegmatis ATP synthase state 1d | |||||||||
Components | (ATP synthase ...) x 8 | |||||||||
Keywords | HYDROLASE / complex / synthase | |||||||||
Function / homology | Function and homology information proton motive force-driven plasma membrane ATP synthesis / proton-transporting ATP synthase complex, coupling factor F(o) / 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 / hydrolase activity / lipid binding / ATP hydrolysis activity / ATP binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Mycolicibacterium smegmatis MC2 155 (bacteria) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.64 Å | |||||||||
Authors | Montgomery, M.G. / Petri, J. / Spikes, T.E. / Walker, J.E. | |||||||||
Funding support | United Kingdom, 2items
| |||||||||
Citation | Journal: Proc Natl Acad Sci U S A / Year: 2021 Title: Structure of the ATP synthase from provides targets for treating tuberculosis. Authors: Martin G Montgomery / Jessica Petri / Tobias E Spikes / John E Walker / Abstract: The structure has been determined by electron cryomicroscopy of the adenosine triphosphate (ATP) synthase from This analysis confirms features in a prior description of the structure of the enzyme, ...The structure has been determined by electron cryomicroscopy of the adenosine triphosphate (ATP) synthase from This analysis confirms features in a prior description of the structure of the enzyme, but it also describes other highly significant attributes not recognized before that are crucial for understanding the mechanism and regulation of the mycobacterial enzyme. First, we resolved not only the three main states in the catalytic cycle described before but also eight substates that portray structural and mechanistic changes occurring during a 360° catalytic cycle. Second, a mechanism of auto-inhibition of ATP hydrolysis involves not only the engagement of the C-terminal region of an α-subunit in a loop in the γ-subunit, as proposed before, but also a "fail-safe" mechanism involving the b'-subunit in the peripheral stalk that enhances engagement. A third unreported characteristic is that the fused bδ-subunit contains a duplicated domain in its N-terminal region where the two copies of the domain participate in similar modes of attachment of the two of three N-terminal regions of the α-subunits. The auto-inhibitory plus the associated "fail-safe" mechanisms and the modes of attachment of the α-subunits provide targets for development of innovative antitubercular drugs. The structure also provides support for an observation made in the bovine ATP synthase that the transmembrane proton-motive force that provides the energy to drive the rotary mechanism is delivered directly and tangentially to the rotor via a Grotthuss water chain in a polar L-shaped tunnel. | |||||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7njn.cif.gz | 1.5 MB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb7njn.ent.gz | 1.2 MB | Display | PDB format |
PDBx/mmJSON format | 7njn.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7njn_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 7njn_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | 7njn_validation.xml.gz | 108.3 KB | Display | |
Data in CIF | 7njn_validation.cif.gz | 174.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/nj/7njn ftp://data.pdbj.org/pub/pdb/validation_reports/nj/7njn | HTTPS FTP |
-Related structure data
Related structure data | 12392MC 7njkC 7njlC 7njmC 7njoC 7njpC 7njqC 7njrC 7njsC 7njtC 7njuC 7njvC 7njwC 7njxC 7njyC 7nk7C 7nk9C 7nkbC 7nkdC 7nkhC 7nkjC 7nkkC 7nklC 7nknC 7nkpC 7nkqC 7nl9C M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-ATP synthase ... , 8 types, 20 molecules ABCDEFGHLMNOPQRSTabd
#1: Protein | Mass: 58951.461 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpA, MSMEG_4938, MSMEI_4811 / Production host: Mycolicibacterium smegmatis (bacteria) References: UniProt: A0R202, H+-transporting two-sector ATPase #2: Protein | Mass: 51670.453 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Details: UNIPROT A0R200. The crossref box is missing. Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpD, MSMEG_4936, MSMEI_4809 / Production host: Mycolicibacterium smegmatis (bacteria) References: UniProt: A0R200, H+-transporting two-sector ATPase #3: Protein | | Mass: 33439.836 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: UNIPROT A0R201. The crossref box is missing Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpG, MSMEG_4937, MSMEI_4810 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R201 #4: Protein | | Mass: 13277.741 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Uniprot A0R1Z9. The crossref box is missing Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpC, MSMEG_4935, MSMEI_4808 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R1Z9 #5: Protein | Mass: 8597.982 Da / Num. of mol.: 9 Source method: isolated from a genetically manipulated source Details: Uniprot A0R205. The cross ref box is missing Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpE, MSMEG_4941 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R205 #6: Protein | | Mass: 27568.482 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Uniprot A0R206. The crossref box is missing Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpB, MSMEG_4942 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R206 #7: Protein | | Mass: 19018.170 Da / Num. of mol.: 1 / Mutation: C-ter 10His tag Source method: isolated from a genetically manipulated source Details: Uniprot A0R204. The crossref box is missing. C-ter 10His tag Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpF, MSMEG_4940, MSMEI_4813 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R204 #8: Protein | | Mass: 47504.723 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Uniprot A0R203. The crossref box is missing. Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria) Gene: atpFH, atpF, atpH, MSMEG_4939, MSMEI_4812 / Production host: Mycolicibacterium smegmatis (bacteria) / References: UniProt: A0R203 |
---|
-Non-polymers , 4 types, 27 molecules
#9: Chemical | ChemComp-ATP / #10: Chemical | ChemComp-MG / #11: Chemical | #12: Water | ChemComp-HOH / | |
---|
-Details
Has ligand of interest | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Mycobacterium smegmatis ATP synthase / Type: COMPLEX / Entity ID: #1-#8 / Source: RECOMBINANT |
---|---|
Molecular weight | Experimental value: YES |
Source (natural) | Organism: Mycolicibacterium smegmatis (bacteria) / Strain: ATCC 700084 / mc(2)155 |
Source (recombinant) | Organism: Mycolicibacterium smegmatis (bacteria) / Strain: mc2 4517 |
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 |
---|---|
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 |
Image recording | Electron dose: 59.86 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
---|---|
3D reconstruction | Resolution: 2.64 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 21966 / Details: resolution range is 2.64-3.99 / Symmetry type: POINT |