X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 223.0
Details 0.1M phosphate buffer, 61% Ammonium sulfate, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 223K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 85.49 α = 90
b = 85.49 β = 90
c = 77.61 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II mirrors 1994-12-19
Diffraction Radiation
Monochromator Protocol
graphite SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 1.5418 -- --

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
1.9 8 90.6 -- -- -- -- -- 9689 2.0 2.0 25.67
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)
1.9 2.0 61.2 -- -- -- -- --

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 1.9 8.0 -- 2.0 -- 9689 960 90.6 0.212 -- 0.186 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 9.5
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.061
p_bond_d 0.024
p_mcangle_it 0.065
p_mcbond_it 0.019
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.024
Luzzati Sigma A (Observed) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1502
Nucleic Acid Atoms 0
Heterogen Atoms 37
Solvent Atoms 69

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
PROTEIN model building
PROLSQ refinement
PROTEIN phasing