X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 298.0
Details 14% PEG 8000, 250mM magnesium acetate, 100 mM sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 82.69 α = 90
b = 115.97 β = 90
c = 271.85 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 114
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-08-28
Diffraction Radiation
Monochromator Protocol
synchrotron SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C 1.000 APS 14-BM-C

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 25 93.4 0.057 0.057 -- 4.1 96961 96961 0.0 0.0 35.98
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 1.97 89.0 0.327 0.327 4.0 -- 9158

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 12.0 0.0 0.0 94416 94416 9418 92.1 0.223 0.223 0.22 0.254 random
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 1.9 1.97 8812 860 -- 0.307 0.335 -- --
X Ray Diffraction 1.97 2.05 9597 950 -- 0.272 0.299 -- --
X Ray Diffraction 2.05 2.14 9725 946 -- 0.264 0.294 -- --
X Ray Diffraction 2.14 2.25 9810 955 -- 0.258 0.295 -- --
X Ray Diffraction 2.25 2.39 9845 961 -- 0.242 0.295 -- --
X Ray Diffraction 2.39 2.57 9756 951 -- 0.233 0.262 -- --
X Ray Diffraction 2.57 2.83 9636 982 -- 0.234 0.277 -- --
X Ray Diffraction 2.83 3.23 9628 994 -- 0.217 0.256 -- --
X Ray Diffraction 3.23 4.05 9021 929 -- 0.197 0.229 -- --
X Ray Diffraction 4.05 12.0 8586 890 -- 0.197 0.227 -- --
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.25
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.27
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8877
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 802

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing