X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details MPD 40%, PEG 4000 10%, AMSO4 0.2M, IMIDAZOLE 10MM, MES BUFF, pH 6.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 88.57 α = 90
b = 88.57 β = 90
c = 68.03 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 105
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2001-12-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 0.9393,0.97953,0.97921 ESRF ID29

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
2.5 34 96.3 0.055 -- -- 4.1 -- 9422 -- -- 20.2
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)
2.5 2.64 97.5 0.218 -- 3.4 4.1 --

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 1.93 17.98 -- 0.0 -- 10342 543 99.0 -- 0.2 0.2 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 1.93 2.05 -- 76 1519 0.265 0.331 0.038 94.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 30.4
Anisotropic B[1][1] -4.64
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.64
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.28
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.7
c_improper_angle_d 1.02
c_mcbond_it 1.46
c_mcangle_it 2.18
c_bond_d 0.018
c_dihedral_angle_d 23.6
c_scangle_it 3.72
c_scbond_it 2.53
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.28
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 860
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 86

Software

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