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STRUCTURE OF THE POTASSIUM FORM OF CGCGAATTCGCG: DNA DEFORMATION BY ELECTROSTATIC COLLAPSE AROUND SMALL CATIONS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 355D BDL084
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 295 pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 295.0K
Crystal Properties Matthews coefficient Solvent content 2.29 46.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 25.296 α = 90 b = 40.244 β = 90 c = 65.939 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 163 CCD SIEMENS 1K 1998-06-22 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE SIEMENS
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 1.5 10 0.101 11376 6479 3
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 (Observed) Number Reflections (R-Free) Percent Reflections (Observed) 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 BDL084 1.75 10 3 11376 6479 49.4 0.218 0.218 0.2279 0.282 0.2768 RANDOM SELECTION
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 x_angle_deg 1.02 x_bond_d 0.004 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d
RMS Deviations Key Refinement Restraint Deviation x_angle_deg 1.02 x_bond_d 0.004 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d x_improper_angle_d_na x_improper_angle_d_prot x_mcbond_it x_mcangle_it x_scbond_it x_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 486 Solvent Atoms 112 Heterogen Atoms 14
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement SAINT data reduction SAINT data scaling X-PLOR phasing