X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 295.0
Details 1.5 M ammonium sulfate, 0.1 M MES, 10 mM CoCl2. Crystal soaked with 1mM Hg acetate for 3 days. 10% glycerol added for flash-cooling, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 109.3 α = 90
b = 109.1 β = 107.6
c = 179.1 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS -- 2000-08-20
Diffraction Radiation
Monochromator Protocol
-- single wavelength
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 0.95 NSLS X12C

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
1.67 50 86.1 0.12 -- -- 3.3 199616 199616 0.0 0.0 19.0
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)
1.67 1.75 49.3 0.213 -- -- -- --

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 1.67 20.0 -- 2.0 -- 190806 11439 82.5 -- -- 0.178 0.225 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 1.67 1.75 -- -- -- 0.206 0.269 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.0
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.9
c_angle_d 0.021
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 15793
Nucleic Acid Atoms 0
Heterogen Atoms 186
Solvent Atoms 1414

Software

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