X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 298.0
Details 0.1 M BIS/TRIS, 0.2 M ammonium sulfate, 25 % PEG 3350, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.91 α = 90
b = 94.91 β = 90
c = 279.94 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH Mirrors 1998-04-26
Diffraction Radiation
Monochromator Protocol
SAGITALLY FOCUSED Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM1A 0.873 ESRF BM1A

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
2.33 30 97.0 -- 0.061 -- 1.8 37195 20586 0.0 0.0 37.3
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)
2.33 2.41 95.7 -- 0.188 3.1 1.7 2007

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
SIRAS 2.33 30.0 0.0 0.0 20586 20576 1039 97.0 -- -- 0.228 0.303 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 2.33 2.41 1889 118 1889 0.306 0.35 -- 96.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 49.1
Anisotropic B[1][1] -8.364
Anisotropic B[1][2] -1.048
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -8.364
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 16.728
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 7.3
c_scbond_it 5.8
c_mcangle_it 3.8
c_mcbond_it 2.5
c_improper_angle_d 1.1
c_dihedral_angle_d 25.9
c_angle_deg 1.2
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.36
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.45
Luzzati Sigma A (R-Free Set) 0.31
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3358
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 276

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHARP Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
SHARP model building