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
IMAGE PLATE 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_staggered_tor 26.0
p_planar_tor 6.2
p_xyhbond_nbd 0.177
p_multtor_nbd 0.273
p_bond_d 0.011
p_angle_d 0.026
p_planar_d 0.035
p_mcbond_it 1.303
p_mcangle_it 2.29
p_scbond_it 1.473
p_scangle_it 2.499
p_chiral_restr 0.144
p_singtor_nbd 0.194
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

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
DM, MLPHARE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
MLPHARE model building
DM model building
SCALEPACK data reduction
DENZO data collection