X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details CRYSTALS WERE GROWN BY THE MICROBATCH METHOD. 1UL OF PROTEIN SOLUTION (15MG/ML ) WAS ADDED TO 1UL OF PRECIPITANT (2.5% (V/V) 2-PROPANOL, 10% PEG4K, 0.1M NAHEPES PH 7.5).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 90.33 α = 90
b = 90.33 β = 90
c = 142.01 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2002-01-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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 50 99.9 0.074 -- -- 7.7 -- 21044 -- -- 25.9
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 2.58 99.9 0.177 -- 3.8 7.8 --

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
OTHER 2.5 47.49 -- 0.0 -- 20672 1016 98.3 -- 0.231 0.231 0.286 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 2.5 2.66 -- 173 3256 0.304 0.386 0.029 99.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 42.0
Anisotropic B[1][1] 8.42
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 8.42
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -16.84
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.39
c_dihedral_angle_d 23.9
c_angle_deg 1.7
c_scbond_it 2.27
c_mcangle_it 2.29
c_scangle_it 3.09
c_bond_d 0.014
c_improper_angle_d 1.13
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.32
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.45
Luzzati Sigma A (R-Free Set) 0.39
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2953
Nucleic Acid Atoms 0
Heterogen Atoms 57
Solvent Atoms 143

Software

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