X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details CRYSTALLIZATION CONDITIONS: PEG6000 11% MGCL2 100MM CACODYLATE 100MM PH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.8 α = 90
b = 144.9 β = 90
c = 203 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD PRINCETON 2K MIRROR 1996-03
Diffraction Radiation
Monochromator Protocol
SILICON CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE D2AM -- ESRF D2AM

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
2.31 20 68.1 -- 0.082 -- 3.2 -- 75568 -- -- 12.0
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)
2.31 2.49 28.2 -- 0.119 -- -- --

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 2.31 6.0 -- 0.0 -- 69688 3556 68.6 -- -- 0.199 0.271 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 2.31 2.4 -- 124 2181 0.227 0.306 0.027 20.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 6.4
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.99
x_scbond_it 0.61
x_dihedral_angle_d 25.1
x_mcbond_it 0.43
x_improper_angle_d 1.87
x_mcangle_it 0.76
x_scangle_it 0.99
x_bond_d 0.017
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.25
Luzzati Resolution Cutoff (Low) 4.0
Luzzati ESD (R-Free Set) 0.35
Luzzati Sigma A (R-Free Set) 0.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 18764
Nucleic Acid Atoms 0
Heterogen Atoms 104
Solvent Atoms 543

Software

Software
Software Name Purpose
XDS data scaling
CCP4 data reduction
X-PLOR refinement version: 3.854
XDS data reduction
CCP4 data scaling