X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.25
Details 14% PEG 4000, 0.2 M LI2SO4, 0.1 M TRIS PH 7.25

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 143.68 α = 90
b = 67.74 β = 95.94
c = 106.99 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 MARRESEARCH BENT MIRROR 2000-04-15
Diffraction Radiation
Monochromator Protocol
DIAMOND C(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-1 -- ESRF ID14-1

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
2.7 39.3 99.3 0.048 -- -- 3.4 -- 28095 -- 0.0 76.0
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)
2.7 2.85 99.3 -- 0.403 3.63 3.5 --

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 2.7 39.3 -- 0.0 -- 28093 1753 99.0 -- 0.272 0.272 0.302 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 2.7 2.8 -- 157 2606 0.471 0.496 0.04 94.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 77.0
Anisotropic B[1][1] 12.3
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 1.2
Anisotropic B[2][2] -21.2
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 8.9
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 21.0
c_bond_d 0.005
c_angle_deg 1.0
c_improper_angle_d 0.7
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.5
Luzzati Sigma A (Observed) 0.61
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.57
Luzzati Sigma A (R-Free Set) 0.73
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6839
Nucleic Acid Atoms 0
Heterogen Atoms 23
Solvent Atoms 0

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
SCALA data scaling
CNS phasing