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 CO.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.64 α = 90
b = 53.64 β = 90
c = 180.93 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
IMAGE PLATE MARRESEARCH MIRRORS 1999-06-15
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM30A -- ESRF BM30A

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
1.95 40 98.7 0.066 -- -- 9.9 -- 12158 -- -3.0 22.0
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)
1.95 2.02 86.8 0.31 -- 5.8 -- --

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
MOLECULAR REPLACEMENT 1.95 40.0 -- 0.0 -- 12158 565 98.7 -- -- 0.203 0.258 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.0
RMS Deviations
Key Refinement Restraint Deviation
p_planar_d 0.036
p_planar_tor 4.5
p_plane_restr 0.0282
p_chiral_restr 0.145
p_staggered_tor 15.3
p_bond_d 0.016
p_mcbond_it 2.854
p_angle_d 0.034
p_scangle_it 6.836
p_transverse_tor 25.9
p_multtor_nbd 0.274
p_singtor_nbd 0.172
p_xyhbond_nbd 0.145
p_scbond_it 5.583
p_mcangle_it 3.433
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 925
Nucleic Acid Atoms 0
Heterogen Atoms 47
Solvent Atoms 144

Software

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