X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4
Temperature 298.0
Details 100 mM potassium acetate, ammonium sulfate, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 58.13 α = 90
b = 89.3 β = 90.57
c = 58.14 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 108
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MACSCIENCE Multilayer 2000-10-20
Diffraction Radiation
Monochromator Protocol
Multilayer optics SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE MACSCIENCE 1.5418 -- --

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
1.7 20.84 96.6 0.086 0.086 -- 4.46 63318 163318 0.0 0.0 12.5
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)
1.7 1.73 84.8 0.302 0.302 4.2 -- 2754

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 1.7 20.84 0.0 0.0 65226 62190 6283 95.3 -- -- 0.224 0.249 shells
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 1.7 1.78 7087 746 6362 0.283 0.291 0.011 87.5
X Ray Diffraction 1.78 1.87 7386 756 6630 0.239 0.238 0.009 90.4
X Ray Diffraction 1.87 1.99 7583 703 6880 0.226 0.226 0.009 93.3
X Ray Diffraction 1.99 2.14 7807 768 7039 0.218 0.219 0.008 95.9
X Ray Diffraction 2.14 2.36 7950 824 7126 0.218 0.219 0.008 97.7
X Ray Diffraction 2.36 2.7 8022 787 7235 0.228 0.228 0.008 98.5
X Ray Diffraction 2.7 3.4 8123 849 7274 0.225 0.225 0.008 99.0
X Ray Diffraction 3.4 20.84 8232 850 7382 0.213 0.212 0.007 99.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 17.08
Anisotropic B[1][1] -3.6
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.32
Anisotropic B[2][2] 4.09
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.5
RMS Deviations
Key Refinement Restraint Deviation
x_torsion_impr_deg 0.57
x_torsion_deg 26.2
x_angle_deg 1.2
x_bond_d 0.004
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3944
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 172

Software

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