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_mcbond_it 0.019
p_mcangle_it 0.065
p_angle_d 0.061
p_bond_d 0.024
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

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
PROTEIN Structure Solution
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
PROTEIN model building
SCALEPACK data reduction
DENZO data collection