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- PDB-1iw7: Crystal structure of the RNA polymerase holoenzyme from Thermus t... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1iw7 | ||||||
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Title | Crystal structure of the RNA polymerase holoenzyme from Thermus thermophilus at 2.6A resolution | ||||||
![]() | (RNA polymerase ...) x 5 | ||||||
![]() | TRANSFERASE / RNA polymerase holoenzyme / RIKEN Structural Genomics/Proteomics Initiative / RSGI / Structural Genomics | ||||||
Function / homology | ![]() sigma factor activity / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / protein dimerization activity / DNA-templated transcription / magnesium ion binding / DNA binding ...sigma factor activity / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / protein dimerization activity / DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / metal ion binding / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | RIKEN Structural Genomics/Proteomics Initiative (RSGI) | ||||||
![]() | ![]() Title: Crystal structure of a bacterial RNA polymerase holoenzyme at 2.6 A resolution Authors: Vassylyev, D.G. / Sekine, S. / Laptenko, O. / Lee, J. / Vassylyeva, M.N. / Borukhov, S. / Yokoyama, S. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.5 MB | Display | ![]() |
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PDB format | ![]() | 1.2 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 539.3 KB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 233.3 KB | Display | |
Data in CIF | ![]() | 354.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1i6vS S: Starting model for refinement |
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Similar structure data | |
Other databases |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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2 | ![]()
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Unit cell |
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Components
-RNA polymerase ... , 5 types, 12 molecules ABKLCMDNEOFP
#1: Protein | Mass: 35056.164 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q9Z9H6, UniProt: Q5SHR6*PLUS, DNA-directed RNA polymerase #2: Protein | Mass: 125436.539 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q8RQE9*PLUS, DNA-directed RNA polymerase #3: Protein | Mass: 170997.391 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q8RQE8*PLUS, DNA-directed RNA polymerase #4: Protein | Mass: 11521.221 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: Q8RQE7*PLUS, DNA-directed RNA polymerase #5: Protein | Mass: 48568.008 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: GenBank: 4239959, UniProt: Q5SKW1*PLUS, DNA-directed RNA polymerase |
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-Non-polymers , 3 types, 5965 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/PB.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/PB.gif)
![](data/chem/img/HOH.gif)
#6: Chemical | ChemComp-MG / #7: Chemical | ChemComp-PB / #8: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 4.71 Å3/Da / Density % sol: 73.87 % | ||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.8 Details: Mg formate, PEG400, Spermidine, TRIS HCl, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K | ||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS | ||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: RIGAKU RAXIS / Detector: IMAGE PLATE / Date: Jan 25, 2001 |
Radiation | Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.02 Å / Relative weight: 1 |
Reflection | Resolution: 2.6→40 Å / Num. all: 1449705 / Num. obs: 1362723 / % possible obs: 94 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.8 % / Rmerge(I) obs: 0.133 / Net I/σ(I): 5.4 |
Reflection shell | Resolution: 2.7→2.8 Å / Redundancy: 2.5 % / Rmerge(I) obs: 0.37 / Mean I/σ(I) obs: 2.5 / % possible all: 89.2 |
Reflection | *PLUS Num. obs: 452740 / % possible obs: 94.6 % / Num. measured all: 1362723 / Rmerge(I) obs: 0.133 |
Reflection shell | *PLUS Highest resolution: 2.6 Å / % possible obs: 89.2 % / Rmerge(I) obs: 0.37 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1I6V Resolution: 2.6→40 Å / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: Merohedral twinning (-h,-k,l). Twinning fraction - 0.5.
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Displacement parameters | Biso mean: 58.9 Å2 | |||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.6→40 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.6→2.7 Å / Rfactor Rfree: 0.322 / Rfactor Rwork: 0.303 | |||||||||||||||||||||
Refinement | *PLUS % reflection Rfree: 4 % / Rfactor all: 0.232 / Rfactor Rfree: 0.274 / Rfactor Rwork: 0.228 | |||||||||||||||||||||
Solvent computation | *PLUS | |||||||||||||||||||||
Displacement parameters | *PLUS | |||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor Rfree: 0.322 / Rfactor Rwork: 0.303 |