X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 20% PEG 400, 10% ISOPROPANOL 0.1 M HEPES, PH=7.5, 4-PHENYLIMIDAZOLE IN SATURATING CONCENTRATION, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.14 α = 90
b = 83.86 β = 90
c = 109.56 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 2000-03-15
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
2.1 40 99.1 -- 0.111 -- 6.9 -- 25107 -- 0.0 17.9
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)
2.1 2.18 91.3 -- 0.489 3.8 5.0 --

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
MIRAS 2.1 39.16 -- 0.0 -- 24660 2445 96.5 -- 0.185 0.185 0.23 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 2.1 2.23 -- 366 3333 0.231 0.272 0.014 88.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 27.5
Anisotropic B[1][1] 3.36
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.85
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.51
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 20.3
c_scangle_it 3.01
c_bond_d 0.005
c_scbond_it 2.08
c_improper_angle_d 0.8
c_angle_deg 1.2
c_mcangle_it 2.11
c_mcbond_it 1.32
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3538
Nucleic Acid Atoms 0
Heterogen Atoms 54
Solvent Atoms 282

Software

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