X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Batch
pH 9
Temperature 277.0
Details sodium phosphate, potassium phosphate, CHES, galactose, pH 9, batch, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 143.4 α = 90
b = 143.4 β = 90
c = 143.4 γ = 90
Symmetry
Space Group I 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 -- 2003-04-04
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 0.97932, 0.97951, 0.96411, 0.65255 APS 19-ID

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 20 98.7 -- 0.067 -- 14.0 28616 28616 0.0 0.0 --
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)
2.1 2.17 99.5 -- 0.214 9.3 9.7 2804

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 2.1 20.0 0.0 0.0 28536 28536 2896 98.7 0.204 0.204 0.199 0.266 random
RMS Deviations
Key Refinement Restraint Deviation
t_angle_deg 2.59
t_bond_d 0.013
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2982
Nucleic Acid Atoms 0
Heterogen Atoms 17
Solvent Atoms 164

Software

Computing
Computing Package Purpose
D*TREK Data Reduction (intensity integration)
HKL-2000 Data Reduction (data scaling)
SOLVE Structure Solution
TNT Structure Refinement
Software
Software Name Purpose
TNT refinement
SOLVE model building
HKL2000 data reduction
d*TREK data collection