X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 0.2M (NH4)2SO4; 0.1M TRIS/HCL PH 8.0: 22% PEG-8000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 201.9 α = 90
b = 43.9 β = 110.7
c = 83.4 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-11
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX7.2 -- SRS PX7.2

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
2.39 38.92 96.2 0.098 -- -- 3.2 -- 26773 -- -- 45.7
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)
2.39 2.52 90.0 0.242 -- 2.51 3.1 --

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
OTHER 2.39 25.0 -- 0.0 -- 25161 -- 9.62 -- -- 0.247 0.324 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 34.0
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 15.0
p_transverse_tor 26.0
p_staggered_tor 16.0
p_planar_tor 2.9
p_xyhbond_nbd 0.155
p_multtor_nbd 0.234
p_bond_d 0.006
p_angle_d 0.023
p_planar_d 0.021
p_mcbond_it 0.839
p_mcangle_it 1.515
p_scbond_it 0.731
p_scangle_it 1.238
p_chiral_restr 0.087
p_singtor_nbd 0.183
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4686
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 206

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
X-PLOR Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
XPLOR model building