X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details pH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 117.6 α = 90
b = 248.4 β = 90
c = 82.7 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
DIFFRACTOMETER WEISSENBERG SYNCHROTRON RADIATION 1996-12-15
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-18B -- Photon Factory BL-18B

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
2.8 100 93.3 0.069 -- -- 3.6 -- 28509 -- 0.5 59.4
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)
2.8 2.9 87.5 0.251 -- -- -- --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 2.8 10.0 -- -- -- 26242 1409 -- -- 0.219 -- 0.259 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.8
RMS Deviations
Key Refinement Restraint Deviation
p_multtor_nbd 0.273
p_mcbond_it 1.303
p_xyhbond_nbd 0.177
p_planar_tor 6.2
p_bond_d 0.011
p_angle_d 0.026
p_staggered_tor 26.0
p_planar_d 0.035
p_singtor_nbd 0.194
p_mcangle_it 2.29
p_scbond_it 1.473
p_chiral_restr 0.144
p_scangle_it 2.499
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6888
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 39

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
DM model building
MLPHARE phasing
REFMAC refinement
DM phasing