X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion and Microdialysis
pH 6.8
Details A COMBINATION OF VAPOR DIFFUSION AND MICRODIALYSIS TECHNIQUES WERE USED TO CRYSTALLIZE RESTRICTOCIN. THE FINAL MOTHER LIQUOR CONSISTS OF 60% ETHANOL, 10MM SODIUM PHOSPHATE, PH6.8. THE PROTEIN CONCENTRATION IS 10MG/ML., vapor diffusion and microdialysis

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.24 α = 90
b = 82.16 β = 100.5
c = 38.04 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI MIRROR 1994-08
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C 0.7, 2.05 NSLS X26C

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
1.7 8 85.6 0.039 -- -- 8.0 -- 28328 -- 2.0 --
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)
1.7 1.78 54.8 -- -- -- -- --

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
SINGLE ISOMORPHOUS REPLACEMENT AND ANOMALOUS SCATTERING 1.7 8.0 -- 2.0 -- 28328 2232 85.6 -- 0.237 0.237 0.177 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 1.7 1.78 -- 184 2088 0.32 0.38 -- 55.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.9
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 27.1
x_improper_angle_d 1.8
x_bond_d 0.018
x_angle_deg 2.02
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Resolution Cutoff (Low) 8.0
Luzzati ESD (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2272
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 205

Software

Software
Software Name Purpose
LAUEVIEW data collection
LAUEVIEW data reduction
PHASES phasing
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
LAUEVIEW data scaling
X-PLOR phasing version: 3.1