X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 277.0
Details DROP- 50 mM NA CACODYLATE pH 6.5, 5 mM HEPES pH 7.5, 0.1 M AMMONIUM SULFATE, 9 % PEG 8000, 0.25 M NACL, 1.0 MM BME, 10 MG/ML PROTEIN. WELL- 0.1M NA CACODYLATE pH 6.5, 0.1 M AMMONIUM SULFATE, 18 % PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 133.96 α = 90
b = 133.96 β = 90
c = 133.96 γ = 90
Symmetry
Space Group P 21 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 170
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2002-04-03
Diffraction Radiation
Monochromator Protocol
Null SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 5ID-B 0.9785 APS 5ID-B

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
1.9 20 99.8 0.079 -- -- 25.7 63197 63100 0.0 -3.0 20.8
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)
1.9 1.97 99.9 0.386 -- 4.65 7.0 6264

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 1.9 19.97 -- 0.0 63100 63068 3187 99.9 0.206 0.205 0.205 0.226 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 1.9 1.97 5984 272 -- 0.245 0.276 0.017 99.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 40.5
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.86
c_bond_d 0.007
c_mcbond_it 1.43
c_angle_d 1.2
c_scangle_it 3.707
c_mcangle_it 2.059
c_scbond_it 2.472
c_dihedral_angle_d 21.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.06
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4596
Nucleic Acid Atoms 0
Heterogen Atoms 64
Solvent Atoms 349

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
CNS phasing