X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 12% PEG8000, 100MM TRIS/PH8.0, 20MM CALCIUM CHLORIDE, 10MM SODIUM CHLORIDE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 80.92 α = 90
b = 84.53 β = 104.49
c = 97.86 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II -- 1997-07
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
2.1 30 95.7 0.057 0.057 -- 2.5 -- 35683 -- -3.0 23.3
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)
2.1 2.2 96.9 0.283 0.283 3.8 2.4 --

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 2.1 30.0 -- 0.0 -- 34919 3555 93.4 -- 0.22 0.22 0.261 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 2.1 2.2 -- 407 3771 0.258 0.289 0.014 90.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 36.4
Anisotropic B[1][1] 1.21
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -3.97
Anisotropic B[2][2] 5.35
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -6.56
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.58
c_mcbond_it 1.45
c_bond_d 0.007
c_dihedral_angle_d 21.3
c_improper_angle_d 0.74
c_mcangle_it 2.2
c_scbond_it 2.46
c_angle_deg 1.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3591
Nucleic Acid Atoms 0
Heterogen Atoms 56
Solvent Atoms 319

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
CNS phasing