X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
pH 6.5
Details 100 MM SODIUM CACODYLATE, PH 6.5, 0.3 M NACL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.4 α = 90
b = 45.4 β = 90
c = 87.9 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU COLLIMATOR 1994-10
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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 30 97.0 0.086 0.086 -- 5.0 -- 7300 -- -- 14.0
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)
2.0 2.06 94.0 -- -- -- -- --

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
MOLECULAR REPLACEMENT 2.0 7.0 -- 0.0 -- 7110 775 94.4 -- 0.204 0.204 0.266 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 2.0 2.03 -- 40 284 0.254 0.267 0.04 92.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model X-PLOR RESTRAINED INDIVID B-FACTORS
Mean Isotropic B 23.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.4
x_bond_d 0.011
x_angle_deg 1.8
x_dihedral_angle_d 27.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 729
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 19

Software

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