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CRYSTAL STRUCTURE OF A GROUP I RIBOZYME DOMAIN: PRINCIPLES OF RNA PACKING
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 6 pH 6.00, VAPOR DIFFUSION
Crystal Properties Matthews coefficient Solvent content 3.3 71
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 74.8 α = 90 b = 128.7 β = 90 c = 145.9 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 110 CCD 1995-12-30 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 2.5 18 73 0.043 23.7 4 36401 2
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.77 2.86 80.2 0.264 4.7 2.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MAD-SIR FREE R 2.5 8 2 35100 1788 73.5 0.242 0.242 0.285 RANDOM 45
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_dihedral_angle_d 13.8 x_mcangle_it 5.87 x_scangle_it 4.59 x_mcbond_it 3.78 x_scbond_it 2.98 x_angle_deg 1.27 x_improper_angle_d 1.2 x_bond_d 0.01 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 13.8 x_mcangle_it 5.87 x_scangle_it 4.59 x_mcbond_it 3.78 x_scbond_it 2.98 x_angle_deg 1.27 x_improper_angle_d 1.2 x_bond_d 0.01 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_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 6766 Solvent Atoms 6 Heterogen Atoms 52
Software Software Software Name Purpose MAD-SIR model building X-PLOR refinement DENZO data reduction CCP4 data scaling SCALEPACK data scaling