X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.8
Details 50 MM NAOAC PH 4.75, 100 MM (NH4)2SO4, 5.5 % PEG4000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 104.2 α = 90
b = 104.2 β = 90
c = 124.9 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE SIEMENS -- 2000-10-14
Diffraction Radiation
Monochromator Protocol
NI-FILTER SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200B -- -- --

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
3 36 99.0 -- -- -- 6.6 -- 10136 -- 3.0 37.904
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)
3.0 3.03 99.0 -- -- 5.1 6.5 --

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 3.0 36.0 -- 3.0 -- 66659 538 99.0 -- 0.197 0.197 0.21 --
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 3.0 3.14 -- 60 957 0.234 0.297 -- 99.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 22.268
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.5945
c_angle_deg 1.28038
c_dihedral_angle_d 26.4703
c_bond_d 0.006533
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2882
Luzzati Sigma A (Observed) 0.2253
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2164
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
SCALA data scaling
TRUNCATE data scaling
CNS phasing