X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 20% PEG 4000, 10% ISOPROPANOL, 0.1 M HEPES, PH=7.5, 4-PHENYLIMIDAZOLE IN SATURATING CONCENTRATION FLUCONAZOLE WAS INTRODUCED INTO THE BINDING SITE BY REPLACEMENT OF 4-PHENYLIMIDAZOLE USING CRYSTAL SOAKING PROCEDURE., pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.19 α = 90
b = 84.26 β = 90
c = 109.75 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU IMAGE PLATE MIRROR 2000-07-15
Diffraction Radiation
Monochromator Protocol
NI SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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
2.2 40 95.0 -- 0.103 -- 2.9 -- 37242 -- 0.0 24.6
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.2 2.28 84.9 -- 0.465 2.0 2.2 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.21 38.0 -- 0.0 -- 37205 3615 89.3 -- 0.204 0.204 0.249 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.2 2.34 -- 443 4350 0.285 0.313 0.015 68.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 32.8
Anisotropic B[1][1] 2.99
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.66
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -5.66
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 20.7
c_mcangle_it 2.29
c_bond_d 0.007
c_scangle_it 2.9
c_improper_angle_d 0.81
c_mcbond_it 1.37
c_scbond_it 1.93
c_angle_deg 1.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.29
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.31
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3509
Nucleic Acid Atoms 0
Heterogen Atoms 65
Solvent Atoms 175

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
CNS phasing version: 1.0