X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details PROTEIN WAS CRYSTALLISED FROM 50MM SUCCINATE, PH 6.0, 10MM HEPES PH 7.0, 18% PEG 4000, 1% N-OCTYLGLUCOSIDE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83 α = 90
b = 83 β = 90
c = 130.6 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU YALE MIRRORS 1995-03-15
Diffraction Radiation
Monochromator Protocol
YALE MIRRORS --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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 40 90.0 -- 0.032 -- 2.0 -- 29479 -- -3.0 23.6
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)
2.0 2.05 60.6 -- 0.281 3.7 1.56 --

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
MIR 2.0 6.0 -- 1.0 -- 29479 2918 85.6 -- 0.183 0.183 0.25 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 2.0 2.09 -- 197 2155 0.276 0.302 0.021 55.35
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 31.8
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.43
x_bond_d 0.01
x_angle_deg 1.55
x_dihedral_angle_d 22.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Sigma A (Observed) 0.29
Luzzati Resolution Cutoff (Low) 4.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3506
Nucleic Acid Atoms 0
Heterogen Atoms 48
Solvent Atoms 319

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building