X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.6
Temperature 298.0
Details 10 mM Sodium Citrate, 23% PEG 8000, pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 38.21 α = 100.75
b = 44.03 β = 101.36
c = 57.65 γ = 102.62
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 2002-01-31
Diffraction Radiation
Monochromator Protocol
Double Crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 8.3.1 1.0 ALS 8.3.1

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 17.07 92.3 -- 0.029 -- -- 55908 29855 4.0 4.0 16.9
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)
1.8 1.91 76.0 -- 0.105 10.4 -- 4127

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
Isomorphous with Structure in Database 1.8 17.07 -- 0.0 29855 29855 1472 92.3 0.2051 0.204 0.204 0.226 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 1.91 -- 207 3920 0.241 0.258 0.018 76.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model OVERALL
Mean Isotropic B 22.5
Anisotropic B[1][1] 8.82
Anisotropic B[1][2] 4.28
Anisotropic B[1][3] 0.45
Anisotropic B[2][2] -4.1
Anisotropic B[2][3] -0.33
Anisotropic B[3][3] -4.72
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.4
c_improper_angle_d 0.91
c_dihedral_angle_d 22.6
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2878
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 171

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS model building
CNS version: 1.1 refinement