X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details 10% PEG8000, 8% ETHYLENE GLYCOL, 0.1M NA-HEPES PH 7,5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 31.43 α = 110.75
b = 55.76 β = 97.35
c = 64.75 γ = 99.49
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 2002-07-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM30A -- ESRF BM30A

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
2.28 25 96.0 0.047 -- -- 3.8 -- 17289 -- 0.0 33.7
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)
2.28 2.33 77.3 0.156 -- 3.2 -- --

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 2.3 20.0 -- 0.0 -- 17072 1699 96.8 -- 0.221 0.221 0.256 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 2.3 2.32 -- 44 392 0.2758 0.2562 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.2
Anisotropic B[1][1] -15.893
Anisotropic B[1][2] -1.446
Anisotropic B[1][3] 7.882
Anisotropic B[2][2] 9.085
Anisotropic B[2][3] -0.079
Anisotropic B[3][3] 6.808
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_bond_d 0.007
c_improper_angle_d 0.8
c_dihedral_angle_d 22.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Resolution Cutoff (Low) 20.0
Luzzati Sigma A (R-Free Set) 0.35
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2197
Nucleic Acid Atoms 0
Heterogen Atoms 44
Solvent Atoms 78

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
CNS phasing