X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 1.6M AMMONIUM SULFATE, 10MM TRIS (PH7.5), pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 129.97 α = 90
b = 129.97 β = 90
c = 129.06 γ = 90
Symmetry
Space Group I 4 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4r -- 1999-06-17
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.9919, 0.9793, 0.9791, 0.9641 NSLS X4A

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
2.4 20 99.8 0.064 -- -- -- -- 41549 -- -- --
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)
2.4 2.49 99.9 0.402 -- -- 4.0 --

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
MAD 2.4 6.0 -- -- -- 19354 1040 -- -- 0.227 0.221 0.315 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.47
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.009
p_angle_d 2.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2702
Nucleic Acid Atoms 0
Heterogen Atoms 45
Solvent Atoms 319

Software

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