X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details HANGING DROP VAPOUR DIFFUSION. PROTEIN AT CONCENTRATION 8 MG/ML WAS MIXED WITH AN EQUAL VOLUME OF WELL SOLUTION CONSISTING OF 55-65% SATURATED AMMONIUM SULFATE IN 100 MM HEPES BUFFER AT PH 7.5. REDUCED USING MOTHER LIQUOR CONTAINING 20 MM SODIUM DITHIONITE, THEN INCUBATED FOR 6 DAYS IN MOTHER LIQUOR SATURATED WITH NO.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.03 α = 90
b = 53.03 β = 90
c = 180.99 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD MIRRORS 2000-01-15
Diffraction Radiation
Monochromator Protocol
DIAMOND 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
1.35 40 98.8 0.039 -- -- 6.8 -- 33925 -- -3.0 16.0
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)
1.35 1.37 93.1 0.227 -- 3.9 -- --

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 1.35 40.0 -- 0.0 -- 33925 1732 98.8 -- -- 0.194 0.22 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.0
RMS Deviations
Key Refinement Restraint Deviation
p_chiral_restr 0.092
p_scbond_it 2.867
p_angle_d 0.024
p_multtor_nbd 0.267
p_planar_tor 4.3
p_scangle_it 3.959
p_xyhbond_nbd 0.14
p_singtor_nbd 0.17
p_staggered_tor 12.8
p_mcbond_it 1.238
p_transverse_tor 27.4
p_bond_d 0.011
p_mcangle_it 1.623
p_plane_restr 0.0239
p_planar_d 0.03
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 927
Nucleic Acid Atoms 0
Heterogen Atoms 45
Solvent Atoms 204

Software

Software
Software Name Purpose
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing