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A D(TGGGGT)- sodium and calcium complex.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 352D THE FIRST QUADRUPLEX MOLECULE OF NDB ENTRY CODE UDF062 OR PDB ENTRY CODE 352D WITH THYMINES REMOVED.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 277 CALCIUM CHLORIDE, DNA, DISTAMYCIN A, SODIUM CHLORIDE, MPD, SPERMINE TETRAHYDROCHLORIDE, SODIUM CACODYLATE BUFFER, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 6.50
Crystal Properties Matthews coefficient Solvent content 1.63 24.79
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 27.357 α = 89.11 b = 27.911 β = 75.63 c = 34.969 γ = 79.7
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 117 IMAGE PLATE RIGAKU RAXIS IV OSMIC FOCUSING MIRROR SYSTEM 2003-12-11 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200
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 1.55 25 87.1 0.061 27.28 2.85 12464 -2
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) 1.55 1.61 80 0.2 8.62
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) 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 THE FIRST QUADRUPLEX MOLECULE OF NDB ENTRY CODE UDF062 OR PDB ENTRY CODE 352D WITH THYMINES REMOVED. 1.55 8 4 12330 1234 92.2 0.176 0.174 0.1695 0.224 0.2132 RANDOM 15.62
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 1171
RMS Deviations Key Refinement Restraint Deviation s_similar_adp_cmpnt 0.051 s_angle_d 0.028 s_anti_bump_dis_restr 0.019 s_from_restr_planes 0.013 s_bond_d 0.008 s_non_zero_chiral_vol 0.008 s_rigid_bond_adp_cmpnt 0.002 s_similar_dist s_zero_chiral_vol s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 968 Solvent Atoms 191 Heterogen Atoms 12
Software Software Software Name Purpose SHELXL-97 refinement CNS refinement DENZO data reduction SCALEPACK data scaling EPMR phasing