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Open data
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Basic information
Entry | Database: PDB / ID: 2gw0 | ||||||||||||||||||
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Title | A D(TGGGGT)- sodium and calcium complex. | ||||||||||||||||||
![]() | 5'-D(*![]() DNA / QUADRUPLEX / G-QUADRUPLEX / TETRAPLEX / G-TETRAPLEX / QUADRUPLE HELIX / PARALLEL-STRANDED / D(TGGGGT) / HYDRATED CALCIUM ION / CALCIUM / CALCIUM ION / SODIUM / SODIUM ION. | Function / homology | DNA | ![]() Method | ![]() ![]() ![]() Lee, M.P.H. / Parkinson, G.N. / Neidle, S. | ![]() ![]() Title: Observation of the coexistence of sodium and calcium ions in a DNA G-quadruplex ion channel. Authors: Lee, M.P. / Parkinson, G.N. / Hazel, P. / Neidle, 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 | ![]() | 44.1 KB | Display | ![]() |
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PDB format | ![]() | 30.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 352dS S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Components
#1: DNA chain | Mass: 1880.251 Da / Num. of mol.: 8 / Source method: obtained synthetically / Details: TETRAHYMENA TELOMERIC SEQUENCE. #2: Chemical | ChemComp-NA / #3: Chemical | ChemComp-CA / #4: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 1.63 Å3/Da / Density % sol: 24.79 % | ||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 277 K / pH: 6.5 Details: CALCIUM CHLORIDE, DNA, DISTAMYCIN A, SODIUM CHLORIDE, MPD, SPERMINE TETRAHYDROCHLORIDE, SODIUM CACODYLATE BUFFER, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 6.50 | ||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions |
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-Data collection
Diffraction | Mean temperature: 117 K |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Dec 11, 2003 / Details: OSMIC FOCUSING MIRROR SYSTEM |
Radiation | Monochromator: NI FILTER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.54178 Å / Relative weight: 1 |
Reflection | Resolution: 1.55→25 Å / Num. obs: 12464 / % possible obs: 87.1 % / Observed criterion σ(I): -2 / Redundancy: 2.85 % / Rmerge(I) obs: 0.061 / Net I/σ(I): 27.28 |
Reflection shell | Resolution: 1.55→1.61 Å / Rmerge(I) obs: 0.2 / Mean I/σ(I) obs: 8.62 / % possible all: 80 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: THE FIRST QUADRUPLEX MOLECULE OF NDB ENTRY CODE UDF062 OR PDB ENTRY CODE 352D WITH THYMINES REMOVED. Resolution: 1.55→8 Å / Num. parameters: 4727 / Num. restraintsaints: 4774 / Cross valid method: THROUGHOUT / σ(F): 4 / Stereochemistry target values: ENGH & HUBER
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Solvent computation | Solvent model: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-228 | |||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 15.62 Å2 | |||||||||||||||||||||||||||||||||
Refine analyze | Num. disordered residues: 0 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 1171 | |||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.55→8 Å
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Refine LS restraints |
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