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Open data
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Basic information
Entry | Database: PDB / ID: 2qwy | ||||||
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Title | SAM-II riboswitch bound to S-adenosylmethionine | ||||||
![]() | SAM-II riboswitch | ||||||
![]() | RNA / mRNA / riboswitch / SAM / S-adenosylmethionine / AdoMet / RNA-ligand complex / double helix / pseudoknot / base triple | ||||||
Function / homology | : / PHOSPHATE ION / S-ADENOSYLMETHIONINE / RNA / RNA (> 10)![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Gilbert, S.D. / Rambo, R.P. / Van Tyne, D. / Batey, R.T. | ||||||
![]() | ![]() Title: Structure of the SAM-II riboswitch bound to S-adenosylmethionine. Authors: Gilbert, S.D. / Rambo, R.P. / Van Tyne, D. / Batey, R.T. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 101.1 KB | Display | ![]() |
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PDB format | ![]() | 77 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1 MB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 11.6 KB | Display | |
Data in CIF | ![]() | 16 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Similar structure data |
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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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3 | ![]()
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Unit cell |
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Details | The deposited coordinates contain all information corresponding to one biologically relevant unit repeated three times according to the number of RNA-ligand complexes observed in the asymmetric unit. |
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Components
-RNA chain , 1 types, 3 molecules ABC
#1: RNA chain | Mass: 16821.043 Da / Num. of mol.: 3 / Source method: obtained synthetically Details: The sequence was engineered based on the SAM-II riboswitch found upstream of the metX gene derived from a Sargasso Sea environmental sequence (Env12). |
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-Non-polymers , 5 types, 166 molecules ABC![](data/chem/img/PO4.gif)
![](data/chem/img/CS.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SAM.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/PO4.gif)
![](data/chem/img/CS.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SAM.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | ChemComp-PO4 / #3: Chemical | #4: Chemical | ChemComp-MG / | #5: Chemical | #6: Water | ChemComp-HOH / | |
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-Details
Nonpolymer details | EACH RNA MONOMER CONTAINS A 5'-DIPHOSPHATE AND A 2',3'-CYCLIC PHOSPHATE. THESE RESIDUES HAVE BEEN ...EACH RNA MONOMER CONTAINS A 5'-DIPHOSPHAT |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.86 Å3/Da / Density % sol: 56.98 % | ||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6 Details: 640 mM Ammonium Acetate, 10% PEG 1000, 10 mM Barium Chloride, 50 mM Sodium Cacodylate, 8 mM Cobalt Hexaammine Chloride. Micro-seeded., pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K | ||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions |
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() |
Detector | Date: Apr 10, 2007 |
Radiation | Monochromator: Nickel Filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 2.8→20 Å / Num. all: 27442 / Num. obs: 26866 / % possible obs: 97.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 3 / Redundancy: 7.8 % / Biso Wilson estimate: 129.5 Å2 / Rsym value: 0.061 / Net I/σ(I): 31.9 |
Reflection shell | Resolution: 2.8→2.9 Å / Redundancy: 7.7 % / Mean I/σ(I) obs: 5 / Num. unique all: 4033 / Rsym value: 0.349 / % possible all: 94.7 |
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Processing
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Refinement | Method to determine structure: ![]()
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 9.21319 Å2 / ksol: 0.25 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 65.6 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.8→19.9 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.8→2.97 Å / Rfactor Rfree error: 0.023 / Total num. of bins used: 6
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Xplor file |
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