ATP-triggered molecular mechanics of the chaperonin GroEL
by single particle reconstruction, at 8.5 A resolution

#1: Surface view with section colored by density value, Surface level: 0.2, Made by UCSF CHIMERA
#2: Surface view colored by cylindrical radius, Surface level: 0.2, Made by UCSF CHIMERA
#3: Surface view with fitted model, atomic models: PDB-4aau, Surface level: 0.2, Made by UCSF CHIMERA
Entry | |
| Summary | |
| Database / ID | EM DATA BANK (EMDB) / 2001 |
|---|---|
| Authors | Clare DK, Vasishtan D, Stagg S, Quispe J, Farr GW, Topf M, Horwich AL, Saibil HR |
| EMDB Sites | EMDB @PDBe (EU), EMDB @RCSB (USA) |
| Structure Visualization | |
| Movies | Movie Page#1: Surface view with section colored by density value, Surface level: 0.2, Made by UCSF CHIMERA #2: Surface view colored by cylindrical radius, Surface level: 0.2, Made by UCSF CHIMERA #3: Surface view with fitted model, atomic models: PDB-4aau, Surface level: 0.2, Made by UCSF CHIMERA |
| Supplemental images | |
| Structure viewers | Yorodumi, Launch PeppeR (About PeppeR), Volume viewer (RCSB, PDBe) |
| Related Structure Data | |
| Related Entries |
Cite: data citing same article Fit: output model of fitting |
| Similar strucutres (beta) |
List of similar structure data about Omokage system |
Article | |
| Citation - Primary | |
| Article | Cell, Vol. 149, Issue 1, Page 113-23, Year 2012 |
|---|---|
| Title | ATP-triggered conformational changes delineate substrate-binding and -folding mechanics of the GroEL chaperonin. |
| Authors | Daniel K Clare, Daven Vasishtan, Scott Stagg, Joel Quispe, George W Farr, Maya Topf, Arthur L Horwich, Helen R Saibil Crystallography and Institute of Structural and Molecular Biology, Birkbeck College, University of London, Malet Street, London WC1E 7HX, UK. |
| Keywords | Adenosine Triphosphate (metabolism, 56-65-5), Bacteria (chemistry), Chaperonin 10 (metabolism), Chaperonin 60 (chemistry), Cryoelectron Microscopy, Escherichia coli (chemistry), Escherichia coli Proteins (chemistry), GroE protein, E coli, Heat-Shock Proteins (chemistry), Hydrophobic and Hydrophilic Interactions, Protein Conformation, Protein Folding |
| Links | PII: S0092-8674(12)00287-5, DOI: 10.1016/j.cell.2012.02.047, PubMed: 22445172, PMC: PMC3326522 |
Map | |||||||||||||||||||||||||
| File | EMD-2001.map ( map file in CCP4 format, 28313 KB ) | ||||||||||||||||||||||||
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| Projections & Slices | Size of images:
Images are generated by Spider package. | ||||||||||||||||||||||||
| Density |
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| Data Type | Image stored as Reals | ||||||||||||||||||||||||
| Space Group Number | 1 | ||||||||||||||||||||||||
| Map Geometry |
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| Unit Cell | A = 387.84 A , B = 387.84 A , C = 387.84 A , alpha = 90.0 degrees , beta = 90.0 degrees , gamma = 90.0 degrees | ||||||||||||||||||||||||
| Pixel Spacing | X = 2.02 A , Y = 2.02 A , Z = 2.02 A | ||||||||||||||||||||||||
| CCP4 map header info | |||||||||||||||||||||||||
| Annotation Details | The GroEL-ATP14 Rd1-Rd3 map is one of seven maps calculated from a heterogenous sample | ||||||||||||||||||||||||
Supplement | |
| Images | |
| Images | |
|---|---|
Sample | |
| Name | GroEL-ATP14 Rd1-Rd3 |
|---|---|
| Number of Components | 2 |
| Oligomeric State | Tetradecamer of GroEL with 14 ATP molecules bound |
| Theoretical Mass | 0.8 MDa |
| Experimental Mass | 0.8 MDa |
| Component #1: protein - GroEL | |
| Scientific name | hsp60 |
| Common Name | GroEL |
| Theoretical Mass | 0.056 MDa |
| Experimental Mass | 0.056 MDa |
| Details | ATPase Mutant, D398A |
| Oligomeric Details | tetradecamer |
| Number of Copies | 14 |
| Scientific Name of Species | Escherichia coli (NCBI Taxonomy: 562) |
| Recombinant expression | Yes |
| Natural Source | Cell Location: cytoplasm |
| Engineered Source | Exp System: Escherichia coli (NCBI Taxonomy: 562) |
| Links | Gene Ontology: GO:0042026, InterPro: IPR:002423 |
| Component #2: ligand - ATP | |
| Scientific name | ATP |
| Theoretical Mass | 0.00055 MDa |
| Experimental Mass | 0.00055 MDa |
| Details | ATP is bound to all 14 subunits |
| Scientific Name of Species | synthetic construct (NCBI Taxonomy: 32630) |
| Recombinant expression | No |
Experiment | |
| Sample Preparation | |
| Specimen Conc | 4 mg/ml |
|---|---|
| Specimen Support Details | cflat grids r2/2 |
| Specimen State | particle |
| Buffer | Details: 50 mM Tris-HCl pH 7.4, 50 mM KCl, 10 mM MgCl2 and 200uM ATP pH: 7.4 |
| Vitrification | |
| Method | grids were blotted for 2-3 seconds |
| Cryogen Name | ETHANE |
| Time Resolved State | vitrified within 30 seconds |
| Details | Vitrification instrument: Vitrobot |
| Humidity | 100 |
| Instrument | FEI VITROBOT |
| Temperature | 95 Kelvin |
| Imaging | |
| Microscope | FEI TECNAI F20 |
| Details | The data was collected with leginon at SCRIPPS |
| Electron Gun | |
| Electron Source | FIELD EMISSION GUN |
| Accelerating Voltage | 120 kV |
| Electron Dose | 15 e/A**2 |
| Illumination Mode | FLOOD BEAM |
| Lens | |
| Magnification | Calibrated: 148500 X |
| Nominal Cs | 2 mm |
| Imaging Mode | BRIGHT FIELD |
| Defocus | 700 nm - 3500 nm |
| Specimen Holder | |
| Holder | Eucentric ( GATAN LIQUID NITROGEN ) |
| Temperature | 95 Kelvin ( 95 Kelvin - 95 Kelvin ) |
| Camera | |
| Detector | Gatan Ultrascan 4000 4K CCD camera |
| Image Acquisition | |
Processing | |
| Method | single particle reconstruction |
|---|---|
| 3 D reconstruction | |
| Algorithm | projection matching |
| Euler Angles Details | theta 80-100, phi 0-51.42 |
| Software | SPIDER, IMAGIC |
| CTF Correction | each particle was phase flipped |
| Details | SIRT was used to reconstruct the final map |
| Resolution By Author | 8.5 |
| Resolution Method | FSC at 0.5 cut-off |
| Single Particle | |
| Number of Projections | 6500 |
| Details | The particles were automatically picked using FindEM |
| Atomic Model Fitting | |
| Model #0 | |
| Target Criteria | cross-correlation coefficient |
| Details | Protocol: Flexible fitting |
| Software | Chimera, Flex-EM, NAMD2.6 |
| Refinement Protocol | flexible |
| Refinement Space | REAL |
| Fitted Coordinate | |
| PDB entry ID | |