X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 250 MM SODIUM FORMATE, 100 MM TRIS-HCL, PH 8, pH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 145.2 α = 90
b = 145.2 β = 90
c = 166.3 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1998-06-17
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.9686,0.9794,0.9797,1.000 ALS 5.0.2

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
2.5 30 71.5 0.05 -- -- 7.0 -- 26124 -- -- 42.6
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)
2.5 2.625 39.5 0.137 -- 4.0 3.0 --

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
MAD 2.6 30.0 -- 2.0 -- 39465 3943 75.7 -- 0.254 0.254 0.279 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 2.6 2.76 -- 390 3497 0.399 0.435 0.022 44.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 57.2
Anisotropic B[1][1] 14.25
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 14.25
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -28.49
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.01
c_improper_angle_d 0.72
c_dihedral_angle_d 19.0
c_angle_deg 1.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.43
Luzzati Sigma A (Observed) 0.56
Luzzati Resolution Cutoff (Low) 30.0
Luzzati ESD (R-Free Set) 0.48
Luzzati Sigma A (R-Free Set) 0.6
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2588
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Software
Software Name Purpose
SOLVE phasing
CNS refinement version: 0.4
DENZO data reduction
SCALEPACK data scaling