X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.4
Details CRYSTALS WERE GROWN BY THE HANGING DROP VAPOR DIFFUSION METHOD USING PLASTIC TISSUE CULTURE PLATES. 0.4 M SODIUM/POTASSIUM PHOSPHATE BUFFER (PH 6.4) CONTAINING 40 MM CYCLOHEXYLAMMONIUM PHOSPHATE WERE EQUILIBRATED AGAINST 1 ML 0.8 M SODIUM/POTASSIUM PHOSPHATE BUFFER (PH 6.4). CRYSTALLIZATION USUALLY OCCURRED WITHIN 3 DAYS AND THE CRYSTALS REACHED THEIR MAXIMUM SIZE OF 0.5 X 0.5 X 0.1 MM==3== AFTER 5 DAYS AT ROOM TEMPERATURE. (SEE REFERENCE 1 FOR DETAILS.), vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.9 α = 90
b = 155.9 β = 91.65
c = 83.85 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-11-27
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X31 -- EMBL/DESY, Hamburg X31

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
1.8 25 99.8 0.053 -- -- 7.2 -- 103189 -- -- --
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)
1.8 1.84 98.7 0.29 -- -- 3.3 --

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
MIRAS 2.0 10.0 -- -- -- 147378 14800 99.9 -- -- 0.197 0.27 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.1
RMS Deviations
Key Refinement Restraint Deviation
p_mcbond_it 3.165
p_staggered_tor 18.44
p_angle_d 0.052
p_scangle_it 8.58
p_plane_restr 0.013
p_chiral_restr 0.177
p_transverse_tor 28.06
p_planar_d 0.054
p_multtor_nbd 0.254
p_xyhbond_nbd 0.198
p_bond_d 0.016
p_scbond_it 6.263
p_mcangle_it 4.148
p_planar_tor 2.393
p_singtor_nbd 0.203
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.24
Luzzati Resolution Cutoff (Low) 10.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6284
Nucleic Acid Atoms 0
Heterogen Atoms 14
Solvent Atoms 478

Software

Software
Software Name Purpose
PHASES phasing
PROLSQ refinement
DENZO data reduction
SCALEPACK data scaling