X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 293.0
Details lithium chloride, sodium azide, citric acid, n-octyl-glucoside, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 182.05 α = 90
b = 182.05 β = 90
c = 103.65 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD CUSTOM-MADE -- 2000-08-21
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 1.03320 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
2.9 15 99.7 0.091 -- -- -- 22730 22684 -- 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)
2.9 3.0 100.0 0.639 -- 5.4 -- --

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 2.9 15.0 -- 2.0 22730 21075 817 92.7 -- -- 0.234 0.27 4% of the total reflections were selected by CNS using the script make_cv.inp
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 2.9 3.0 1764 68 -- 0.342 0.364 -- 79.2
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.0225
c_dihedral_angle_d 22.073
c_angle_deg 1.5392
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.41
Luzzati Sigma A (Observed) 0.55
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.5
Luzzati Sigma A (R-Free Set) 0.48
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4389
Nucleic Acid Atoms 0
Heterogen Atoms 232
Solvent Atoms 84

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 0.9 Structure Refinement
Software
Software Name Purpose
CNS version: 0.9 refinement
CNS model building
SCALEPACK data reduction
DENZO data collection