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Discovery of cytotoxic Dolastatin 10 analogs with N-terminal modifications
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3HKB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 290 5% PEG 400, 0.1M LiSO4, 5-7% PEG 20K, 50 mM K-PIPES, pH 6.8 at 19oC
Crystal Properties Matthews coefficient Solvent content 2.62 53.08
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 66.73 α = 90 b = 128.3 β = 90 c = 254.38 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 100 PIXEL DECTRIS PILATUS 6M 2012-03-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 17-ID 1.0 APS 17-ID
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 3.5 50 92.7 0.153 3.9 3.5 26197 105.18
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 3.5 3.56 84.3 0.872 3.1 1141
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 3HKB 3.5 45.45 26100 1307 92.12 0.2028 0.1996 0.2067 0.2627 0.2866 RANDOM 144.85
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] -40.1132 21.7486 18.3646
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 24.69 t_omega_torsion 2.61 t_angle_deg 1.24 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 24.69 t_omega_torsion 2.61 t_angle_deg 1.24 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it t_nbd t_improper_torsion t_chiral_improper_torsion t_sum_occupancies t_utility_distance t_utility_angle t_utility_torsion t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 14448 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 280
Software Software Software Name Purpose BUSTER refinement DENZO data reduction SCALEPACK data scaling BUSTER phasing