X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 10
Temperature 298.0
Details sodium phosphate, potassium phosphate, 3-(cyclohexylamino)-1-propane sulphonic acid (CAPS), pH 10.0, VAPOR DIFFUSION, HANGING DROP at 298K, temperature 298K, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.14 α = 90
b = 77.99 β = 90
c = 96.6 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 ADSC QUANTUM 4 -- 2001-11-04
Diffraction Radiation
Monochromator Protocol
crystal monochromator + Si mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.9786 NSLS X4A

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 19.07 99.6 -- 0.073 -- 10.6 71418 69719 -- -3.0 21.0
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)
1.9 1.99 93.1 -- 0.361 6.7 10.0 8929

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
SAD 1.9 19.07 -- 2.0 71418 69719 6899 10.0 0.208 0.204 0.204 0.224 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 1.99 8316 821 -- 0.237 0.266 0.009 93.1
X Ray Diffraction 1.99 2.09 8625 794 -- 0.217 0.245 0.009 96.1
X Ray Diffraction 2.09 2.22 8686 871 -- 0.214 0.253 0.009 97.1
X Ray Diffraction 2.22 2.39 8750 854 -- 0.21 0.252 0.009 97.9
X Ray Diffraction 2.39 2.63 8802 882 -- 0.208 0.257 0.009 99.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 30.39
Anisotropic B[1][1] 6.3
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.5
x_improper_angle_d 0.86
x_dihedral_angle_d 22.4
x_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3264
Nucleic Acid Atoms 0
Heterogen Atoms 53
Solvent Atoms 246

Software

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