X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 277.0
Details 12% PEG3350, 100 mM Bis-Tris 6.5, 0.1 M L-malate, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 227.28 α = 90
b = 117.35 β = 109.79
c = 113.02 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2002-10-04
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.97897 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
2.3 30 95.0 0.083 0.083 -- 2.5 117778 117757 0.0 0.0 25.2
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)
2.3 2.38 84.8 0.203 -- -- -- --

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 2.3 20.0 -- 2.0 117788 116154 8741 93.9 0.21 0.205 0.205 0.256 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 2.3 2.38 -- 762 9241 0.285 0.335 0.012 81.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 37.7
Anisotropic B[1][1] -5.39
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.06
Anisotropic B[2][2] -7.47
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 12.86
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.36
c_improper_angle_d 0.85
c_angle_deg 1.3
c_mcangle_it 2.23
c_dihedral_angle_d 23.5
c_bond_d 0.007
c_scbond_it 2.07
c_scangle_it 2.97
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.35
Luzzati Sigma A (R-Free Set) 0.39
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 17468
Nucleic Acid Atoms 0
Heterogen Atoms 424
Solvent Atoms 748

Software

Software
Software Name Purpose
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling
COMO phasing