X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.5
Temperature 298.0
Details 0.1M HEPES, 2M(NH4)2SO4,5% PEG400, pH 7.50, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 79.44 α = 90
b = 79.44 β = 90
c = 327.08 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS -- 1999-02-11
Diffraction Radiation
Monochromator Protocol
SI SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 1 NSLS X12C

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
2.4 50 91.0 0.057 -- -- 3.0 22357 20345 2.0 0.0 --
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)
2.4 2.44 83.0 0.198 0.198 2.8 1.58 --

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 2.4 50.0 -- 2.0 22357 20345 981 86.9 -- -- 0.188 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 2.4 2.5 -- 72 1442 0.25 0.34 0.12 83.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model OVERALL
Mean Isotropic B 21.0
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.012
x_angle_deg 1.94
x_improper_angle_d 1.45
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.46
Luzzati Sigma A (Observed) 0.44
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.41
Luzzati Sigma A (R-Free Set) 0.41
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3598
Nucleic Acid Atoms 0
Heterogen Atoms 144
Solvent Atoms 247

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing