X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Temperature 291.0
Details MgSO4, MES, 1,6-hexanediol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Method Vapor Diffusion Hanging Drop
pH 7
Temperature 291.0
Details magnesium sulfate, MES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.72 α = 90
b = 77.72 β = 90
c = 183.42 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD CUSTOM-MADE Mirrors 1999-12-12
CCD ADSC QUANTUM 4 Mirrors 2000-06-22
Diffraction Radiation
Monochromator Protocol
Si Crystal SINGLE WAVELENGTH
Si Crystal MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 0.909 CHESS A1
SYNCHROTRON APS BEAMLINE 19-ID 0.9795, 0.9793, 0.9537 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
2.3 25 99.3 -- 0.063 -- 7.0 38761 38761 -- -- --

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 2.3 25.0 -- 0.0 25741 25741 2604 -- -- -- 0.235 0.272 random
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 47.7103
Anisotropic B[1][1] -8.353
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -8.353
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 16.706
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.0059
c_dihedral_angle_d 22.95
c_improper_angle_d 0.8
c_angle_deg 1.24
Coordinate Error
Parameter Value
Luzzati Sigma A (R-Free Set) 0.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3764
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 139

Software

Software
Software Name Purpose
MLPHARE phasing
CNS refinement
MOSFLM data reduction
SCALEPACK data scaling