X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 298.0
Details 0.2M NH4 Acetate, 0.1 M Ma Acetate. 22.5% PEG4000, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.25 α = 90
b = 84.25 β = 90
c = 234.13 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 Si 111 Channel 2002-11-24
Diffraction Radiation
Monochromator Protocol
Si 111 Channel MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 0.9793,0.9791,0.9639 APS 19-ID

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
2.18 50 99.0 0.072 -- -- 12.89 22690 22467 2.0 2.0 24.7
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)
2.18 2.26 92.3 0.56 -- 2.08 11.9 2281

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
MAD 2.2 42.13 0.0 0.0 40976 34502 1718 84.2 -- 0.201 0.201 0.266 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 2.2 2.34 -- 202 3962 0.281 0.304 0.021 60.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 44.3
Anisotropic B[1][1] 3.68
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.68
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.37
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.007
c_dihedral_angle_d 23.3
c_mcbond_it 0.97
c_scbond_it 1.31
c_angle_deg 1.4
c_improper_angle_d 0.82
c_mcangle_it 1.73
c_scangle_it 2.16
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.36
Luzzati Sigma A (R-Free Set) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2672
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 144

Software

Software
Software Name Purpose
CNS refinement version: 0.9
d*TREK data reduction
HKL-2000 data scaling
CNS phasing