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CRYSTAL STRUCTURE OF THE 30 KDA FRAGMENT OF E. COLI DNA TOPOISOMERASE I. MONOCLINIC FORM
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 277 11-13%(W/V) PEG 3500, 20MM MES PH 6.0, 50MM KCL, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.81 56.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 36.82 α = 90 b = 146.55 β = 106.48 c = 64.57 γ = 90
Symmetry Space Group P 1 21 1
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 1997-11-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 5ID-B APS 5ID-B
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 1.8 50 89.9 0.069 7.5 4.4 237667 54367 20.3
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 1.8 1.85 76.5 0.255 2.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION THROUGHOUT 1.8 27.5 2 54326 54268 2741 89.5 0.205 0.205 0.205 0.242 RANDOM 29.3
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] -3.46 -0.64 6.38 -2.92
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.7 c_scangle_it 2.76 c_mcangle_it 1.93 c_scbond_it 1.68 c_angle_deg 1.3 c_mcbond_it 1.22 c_improper_angle_d 0.82 c_bond_d 0.008 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.7 c_scangle_it 2.76 c_mcangle_it 1.93 c_scbond_it 1.68 c_angle_deg 1.3 c_mcbond_it 1.22 c_improper_angle_d 0.82 c_bond_d 0.008 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3846 Nucleic Acid Atoms Solvent Atoms 509 Heterogen Atoms
Software Software Software Name Purpose CNS refinement X-PLOR model building REFMAC refinement X-PLOR refinement AMoRE phasing DENZO data reduction CCP4 data scaling X-PLOR phasing