X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Batch
pH 6
Temperature 298.0
Details ammonium sulfate, pH 6, batch, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 64.45 α = 90
b = 30.93 β = 105.73
c = 34.73 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR UCSD MARK II -- 1997-09-08
Diffraction Radiation
Monochromator Protocol
Si 111 CHANNEL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU 1.541 -- --

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
2.3 9.2 96.9 0.044 -- -- 2.6 5870 5870 0.0 0.0 20.8
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)
2.3 2.42 94.5 0.056 -- 15.6 2.0 825

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
-- 2.3 9.18 -- 2.0 -- 5811 633 97.7 -- -- 0.162 0.218 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 2.3 2.44 -- 93 791 0.166 0.224 0.023 91.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.9
Anisotropic B[1][1] -0.54
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.78
Anisotropic B[2][2] 1.97
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.44
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 17.2
c_improper_angle_d 1.02
c_bond_d 0.006
c_mcangle_it 1.87
c_scangle_it 3.39
c_scbond_it 2.23
c_mcbond_it 1.22
c_angle_deg 1.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.11
Luzzati Resolution Cutoff (Low) 9.2
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1212
Nucleic Acid Atoms 0
Heterogen Atoms 53
Solvent Atoms 54

Software

Software
Software Name Purpose
CNS refinement
CCP4 data scaling version: (SCALA)
CNS phasing