X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 1.9M Ammonium sulfate, 0.2M Tris pH 8.0, 2mM EDTA

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 330.7 α = 90
b = 330.7 β = 90
c = 330.7 γ = 90
Symmetry
Space Group I 41 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2001-03-28
Diffraction Radiation
Monochromator Protocol
0.87 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
3.9 50.6 84.9 -- 0.103 -- 3.7 22906 22906 -- -- --
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)
3.9 4.0 88.1 -- 0.631 2.0 3.5 --

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 3.9 50.6 -- -- -- 22906 1154 85.0 -- 0.296 0.296 0.316 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 3.9 4.001 -- 84 1741 0.387 0.403 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 118.741
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 2.072
p_scbond_it 1.245
p_mcangle_it 2.417
p_mcbond_it 1.415
p_xyhbond_nbd 0.307
p_chiral_restr 0.114
p_bond_d 0.009
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5734
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
HKL (DENZO) Data Reduction (intensity integration)
HKL (SCALEPACK) Data Reduction (data scaling)
CCP4 (MOLREP), CNS Structure Solution
REFMAC 5 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.0 refinement
CNS model building
REFMAC5.O model building
CCP4 version: MOLREP model building
HKL version: SCALEPACK data reduction
HKL version: DENZO data collection