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HUMAN TOPOISOMERASE I/DNA COMPLEX
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model Other RECONSTITUTED HUMAN TOPOISOMERASE I COVALENT COMPLEX WITH 22 BASE PAIR DUPLEX DNA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.7 295 pH 7.70, VAPOR DIFFUSION, SITTING DROP, temperature 295.00K
Crystal Properties Matthews coefficient Solvent content 2.01 38.91
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 71.8 α = 90 b = 66.3 β = 98.4 c = 71.8 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 IMAGE PLATE FUJI 1996-06-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A NSLS X4A
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 2.5 20 83.9 0.077 4.2 18834 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) 2.5 2.6 87.7 0.269 4.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION RIGID BODY REFINEMENT THROUGHOUT RECONSTITUTED HUMAN TOPOISOMERASE I COVALENT COMPLEX WITH 22 BASE PAIR DUPLEX DNA 2.5 20 2 20807 1467 87 0.209 0.308 RANDOM
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] -2.35 0.753 4.706 -2.35
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 22.3 x_angle_deg 1.47 x_improper_angle_d 1.46 x_bond_d 0.011 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 22.3 x_angle_deg 1.47 x_improper_angle_d 1.46 x_bond_d 0.011 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 x_mcbond_it x_mcangle_it x_scbond_it x_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3778 Nucleic Acid Atoms 888 Solvent Atoms 273 Heterogen Atoms 8
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement DENZO data reduction SCALEPACK data scaling X-PLOR phasing