X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 4.0
Details 100 mM Tris-HCl pH 8.5, 15% PEG 4K, 1M NaCl, 5% glycerol, 5% ethylene glycol, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.8 α = 90
b = 126.4 β = 90
c = 47.24 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 -- 1999-10-13
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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
2.25 30 97.6 0.046 -- -- 7.3 41954 40942 9999.0 2.0 41.0
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)
2.25 2.33 90.8 0.227 -- -- 6.5 4206

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
-- 2.27 30.0 0.0 9999.0 41454 41454 4094 100.0 0.242 0.242 0.239 0.268 Random
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.683
c_bond_d 0.0077
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3062
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 164

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SnB phasing
CNS refinement version: 0.9