X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.6
Temperature 291.0
Details potassium chloride, magnesium chloride, sodium chloride, PEG 3350, isopropanol, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.81 α = 90
b = 109.78 β = 90
c = 89.46 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-05-01
Diffraction Radiation
Monochromator Protocol
Silicium SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 0.91902 ESRF ID29

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
1.8 49.75 91.5 0.088 -- -- 7.8 24024 23784 0.0 0.0 19.5
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)
1.8 1.86 61.2 0.197 -- 2.7 3.8 --

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
SAD with molecular replacement 1.8 49.75 0.0 0.0 25876 23740 1142 91.7 -- -- 0.186 0.222 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 1.8 1.88 -- 100 1940 0.26 0.262 0.026 63.9
X Ray Diffraction 1.88 1.98 -- 136 2427 0.237 0.237 0.02 80.2
X Ray Diffraction 1.98 2.11 -- 133 2898 0.206 0.205 0.018 94.5
X Ray Diffraction 2.11 2.27 -- 159 3045 0.19 0.189 0.015 99.8
X Ray Diffraction 2.27 2.5 -- 155 3058 0.172 0.172 0.014 99.8
X Ray Diffraction 2.5 2.86 -- 159 3076 0.192 0.193 0.015 99.9
X Ray Diffraction 2.86 3.6 -- 158 3073 0.18 0.179 0.014 99.1
X Ray Diffraction 3.6 49.75 -- 142 3081 0.173 0.173 0.015 95.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.63
Anisotropic B[1][1] 14.07
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -6.27
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.79
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 3.41
x_scbond_it 2.43
x_mcangle_it 2.7
x_mcbond_it 1.94
x_improper_angle_d 3.18
x_dihedral_angle_d 23.6
x_angle_deg 3.4
x_bond_d 0.017
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 917
Nucleic Acid Atoms 632
Heterogen Atoms 2
Solvent Atoms 277

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS, SHARP Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
Crystallography & NMR System version: 1.0 refinement