X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.9
Temperature 20.0
Details ammonium sulphate, sodium acetate, MES, pH 4.9, VAPOR DIFFUSION, HANGING DROP, temperature 20K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.5 α = 90
b = 71.5 β = 90
c = 79.6 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU GRAPHITE CRYSTAL 1999-07-30
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
2.6 50 99.7 0.038 -- -- 3.8 7568 28513 2.0 2.0 63.5
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)
2.6 2.66 98.7 0.234 -- -- 1.7 7568

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
MAD 2.6 10.0 3.0 2.0 7549 7394 393 99.7 0.268 0.236 0.234 0.307 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 2.6 2.72 -- 32 820 0.2755 0.3148 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 58.02
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.007
c_angle_deg 1.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1478
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 88

Software

Software
Software Name Purpose
MLPHARE phasing
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling