X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 37.0
Details 48% saturated ammonium sulphate, 0.1 M Hepes buffer, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 37K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 180.87 α = 90
b = 180.87 β = 90
c = 170.51 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1999-06-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE -- ESRF --

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
1.85 15 99.4 0.071 -- -- 7.4 1193911 119391 0.0 0.0 30.3
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)
1.85 1.95 99.3 0.412 -- -- 1.8 --

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
-- 1.85 15.0 0.0 0.0 119391 99523 8167 -- 0.212 0.212 0.211 0.233 Random
RMS Deviations
Key Refinement Restraint Deviation
x_torsion_impr_deg 0.72
x_torsion_deg 24.8
x_angle_d 1.3
x_bond_d 0.005
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6264
Nucleic Acid Atoms 0
Heterogen Atoms 60
Solvent Atoms 611

Software

Computing
Computing Package Purpose
MAR Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
CNS model building
SCALA data reduction
MAR data collection