X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 30% (W/V) PEG 6000, 100 MM CACODYLATE/HCL PH 6.5, 200 MM SODIUM ACETATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83.2 α = 90
b = 161.5 β = 90
c = 168.5 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAC SCIENCE DIP-2030H -- 1997-11-06
Diffraction Radiation
Monochromator Protocol
NI FITER SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR591 -- -- --

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
2.6 25 100.0 0.117 -- -- 5.9 -- 70394 -- -- 38.8
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)
2.6 2.69 99.9 0.363 -- 4.9 5.7 --

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 2.6 25.0 -- 0.0 -- 70394 3556 99.8 -- 0.1876 0.1876 0.2109 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 2.6 2.69 -- 332 6602 0.249 0.289 0.016 99.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 28.3
Anisotropic B[1][1] 2.335
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -6.564
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 4.23
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.84
c_bond_d 0.006
c_dihedral_angle_d 23.4
c_scangle_it 3.238
c_scbond_it 2.158
c_angle_deg 1.36
c_mcangle_it 1.949
c_mcbond_it 1.178
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 14304
Nucleic Acid Atoms 0
Heterogen Atoms 8
Solvent Atoms 489

Software

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