X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 10 MG/ML PROTEIN 20 PEG 4K, 10% ISOPROPONAL, 5 MM DTT, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.91 α = 90
b = 61 β = 90
c = 129.41 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2002-07-15
Diffraction Radiation
Monochromator Protocol
SILICON SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 -- ESRF ID14-4

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
1.7 50 82.4 0.078 -- -- 4.2 -- 116971 -- -- 18.1
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)
1.7 1.8 63.7 0.186 -- 2.3 -- --

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 1.7 36.89 -- 0.0 -- 30601 1517 76.4 -- 0.205 0.205 0.234 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 1.6 1.7 -- -- 4 0.122 -- -- 0.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 20.6
Anisotropic B[1][1] -4.04
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.02
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.0
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.01
c_scangle_it 2.87
c_mcbond_it 1.27
c_scbond_it 1.89
c_angle_deg 1.5
c_improper_angle_d 1.44
c_dihedral_angle_d 23.6
c_bond_d 0.012
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2668
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 281

Software

Software
Software Name Purpose
CNS refinement version: 1.1
MOSFLM data reduction
SCALA data scaling
CNS phasing