X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details 0.2 MAMMONIUM SULFATE, 0.1 M SODIUM CITRATE PH 4.6, 25% PEG 4000, 100 MM DTT

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 109.49 α = 90
b = 123.63 β = 90
c = 136.22 γ = 90
Symmetry
Space Group I 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 113
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 2002-11-15
Diffraction Radiation
Monochromator Protocol
-- 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
2.3 25 96.2 0.068 -- -- 7.5 -- 39388 -- -- 52.2
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)
2.3 2.38 91.1 0.625 -- 2.3 4.3 --

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 2.3 24.88 -- 0.0 -- 39382 611 95.7 -- 0.21 0.21 0.257 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 2.3 2.44 -- 93 5976 0.354 0.393 0.041 89.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 68.4
Anisotropic B[1][1] -1.71
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.47
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.18
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.5
c_mcbond_it 1.67
c_scangle_it 3.22
c_dihedral_angle_d 23.5
c_bond_d 0.011
c_mcangle_it 2.79
c_scbond_it 2.14
c_improper_angle_d 0.96
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.38
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.43
Luzzati Sigma A (R-Free Set) 0.43
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5722
Nucleic Acid Atoms 0
Heterogen Atoms 260
Solvent Atoms 337

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing