X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.1
Temperature 293.0
Details Ammonium Sulphate, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 187.99 α = 90
b = 187.99 β = 90
c = 60.54 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-07-04
Diffraction Radiation
Monochromator Protocol
Sagitally focused Ge(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.1 1.244 SRS PX14.1

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
1.45 56.7 99.7 0.088 -- -- 6.8 -- 71757 0.0 0.0 16.34
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)
1.45 1.53 99.7 0.261 -- 2.5 3.8 10410

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 1.45 56.7 -- -- -- 67533 3617 -- 0.148 -- 0.146 0.188 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 1.45 1.488 4882 241 -- 0.203 0.298 -- 99.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Mixed isotropic and anisotropic
Mean Isotropic B 16.47
Anisotropic B[1][1] -1.31
Anisotropic B[1][2] -1.31
Anisotropic B[1][3] 1.97
Anisotropic B[2][2] -0.66
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
p_dihedral_angle_d 4.632
p_improper_angle_d 0.161
p_angle_deg 2.931
p_bond_d 0.039
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.0602
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2498
Nucleic Acid Atoms 0
Heterogen Atoms 129
Solvent Atoms 474

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMoRE model building
SCALA data reduction
MOSFLM data collection