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Crystal structure of sterol 14-alpha demethylase (CYP51) from Trypanosoma brucei bound to an inhibitor N-(1-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl)ethyl)-4-(5-phenyl-1,3,4-oxaziazol-2-yl)benzamide
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3G1Q pdb entry 3G1Q
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.3 298 PEG 3350, POTASSIUM PHOSPHATE, n-TETRADECYL-BETA-D-MALTOSIDE, SODIUM CHLORIDE, N-(1-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl)ethyl)-4-(5-phenyl-1,3,4-oxaziazol-2-yl)benzamide , pH 7.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.41 49.03
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.078 α = 74.74 b = 79.113 β = 79.13 c = 115.998 γ = 68.57
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 MARMOSAIC 225 mm CCD Be Lenses/Diamond Laue Mono 2009-02-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-F 0.97872 APS 21-ID-F
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 1.87 37.48 96.99 0.05 28 3.9 149012 144527 1.8 1.8 29.5
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) 1.87 1.9 91.7 0.603 1.8 3.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) 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 pdb entry 3G1Q 1.87 37.48 1.8 1.8 149012 144527 7635 96.99 0.19111 0.18861 0.1931 0.2383 0.2408 RANDOM 29.112
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] -0.16 0.06 -0.23 0.11 0.28
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.979 r_dihedral_angle_4_deg 17.982 r_dihedral_angle_3_deg 15.427 r_sphericity_free 10.378 r_dihedral_angle_1_deg 6.043 r_scangle_it 4.498 r_sphericity_bonded 3.816 r_scbond_it 2.987 r_mcangle_it 2.12 r_angle_refined_deg 1.549
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.979 r_dihedral_angle_4_deg 17.982 r_dihedral_angle_3_deg 15.427 r_sphericity_free 10.378 r_dihedral_angle_1_deg 6.043 r_scangle_it 4.498 r_sphericity_bonded 3.816 r_scbond_it 2.987 r_mcangle_it 2.12 r_angle_refined_deg 1.549 r_rigid_bond_restr 1.51 r_mcbond_it 1.355 r_angle_other_deg 0.943 r_mcbond_other 0.628 r_chiral_restr 0.09 r_bond_refined_d 0.017 r_gen_planes_refined 0.007 r_bond_other_d 0.001 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 14273 Nucleic Acid Atoms Solvent Atoms 691 Heterogen Atoms 312
Software Software Software Name Purpose HKL-2000 data collection PHASER phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling