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DNA G-Quartets in a 1.86 A Resolution Structure of an Oxytricha nova Telomeric Protein-DNA Complex
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1OTC PDB ENTRY 1OTC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 282 PEG 4000, ethylene glycol, sodium chloride, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 282K
Crystal Properties Matthews coefficient Solvent content 2.48 51.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 93.1 α = 90 b = 93.1 β = 90 c = 421.8 γ = 120
Symmetry Space Group P 61 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 Bent Conical SI Mirror (RH Coating) 1999-05-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C 1.0000 APS 14-BM-C
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.86 20 99.1 0.065 16.9 9.8 92896 92060 -3 21.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.86 1.93 95.6 0.54 2.2 6.3 8678
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1OTC 1.86 20 -3 92052 91188 9022 99.1 0.232 0.232 0.23 0.2415 0.246 0.2552 RANDOM 36.2
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 26.1 c_scangle_it 2.46 c_mcangle_it 2.18 c_scbond_it 1.67 c_mcbond_it 1.39 c_angle_deg 1.3 c_improper_angle_d 1.25 c_bond_d 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5438 Nucleic Acid Atoms 759 Solvent Atoms 503 Heterogen Atoms 5
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALEPACK data scaling CNS phasing