X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 288.0
Details 0.16M calcium acetate, 0.08M sodium cacodylate pH 6.5, 14.4% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 288K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.72 α = 90
b = 79.58 β = 90
c = 169.65 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 -- 2001-11-12
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 1.041 NSLS X25

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
2.6 30 85.2 0.098 -- -- 2.5 10629 10629 0.0 0.0 32.2
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)
2.6 2.64 88.8 0.518 -- -- -- 548

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 2.8 29.02 -- 0.0 8158 8158 844 81.7 -- -- 0.216 0.299 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 2.8 2.98 -- 134 1181 0.323 0.405 0.035 80.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 54.6
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.76
c_scangle_it 10.77
c_angle_deg 1.3
c_scbond_it 7.27
c_bond_d 0.007
c_mcangle_it 9.94
c_mcbond_it 6.17
c_dihedral_angle_d 23.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Luzzati Sigma A (Observed) 0.48
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.53
Luzzati Sigma A (R-Free Set) 0.64
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2026
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 14

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing