X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details CRYSTALS WERE GROWN IN HANGING DROPS WHICH INITIALLY CONSISTED OF 0.11 MM PROTEIN IN 0.047 M HEPES BUFFER (PH 7.5) CONTAINING 1.82 MM GLUTATHIONE, 10.91 MM HNA-SG (GSH CONJUGATE OF 4-HYDROXYNONENAL), 9.1% ETHANOL, 4.5% ISOPROPANOL, AND 6.5% PEG MONOMETHYL ETHER 5K (PH 7.5). THE DROPS WERE EQUILIBRATED AT 293 K AGAINST WELL SOLUTION CONTAINING 10% ISOPROPANOL AND 12% PEG MONOMETHYL ETHER 5K IN 80 MM HEPES BUFFER (PH 7.5).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 114.45 α = 90
b = 96.14 β = 90
c = 50.84 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAC Science DIP-2020 MIRRORS 1997-05-15
Diffraction Radiation
Monochromator Protocol
NI FILTER SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR591 -- -- --

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 20 87.4 0.075 -- -- 12.1 -- 15647 -- 0.0 39.0
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)
2.6 2.69 60.1 0.256 -- 2.35 2.74 --

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 2.6 20.0 -- 2.0 -- 15647 781 87.4 -- 0.244 0.244 0.317 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 -- 73 1251 0.3328 0.3589 -- 60.1
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 49.0
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.364
x_bond_d 0.008
x_dihedral_angle_d 19.79
x_improper_angle_d 1.117
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3586
Nucleic Acid Atoms 0
Heterogen Atoms 51
Solvent Atoms 40

Software

Software
Software Name Purpose
AMoRE phasing
X-PLOR refinement version: 3.843
HKL-2000 data reduction
HKL-2000 data scaling