X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Evaporation
pH 4.6
Temperature 298.0
Details 20% iso-propanol, 100 mM sodium acetate pH 4.6, 200 mM CaCl2, EVAPORATION, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.38 α = 90
b = 86.38 β = 90
c = 228.79 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-05-06
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I711 -- MAX II I711

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
1.95 22 92.4 -- 0.082 -- 4.6 24645 22772 0.0 0.0 18.1
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)
1.95 2.0 94.9 -- 0.246 3.1 3.7 1665

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 1.95 22.0 0.0 0.0 24645 22772 1144 92.4 -- 0.227 0.23 0.252 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 1.95 2.07 -- 200 3687 0.325 0.368 0.026 96.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 37.2
Anisotropic B[1][1] 6.39
Anisotropic B[1][2] 3.31
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 6.39
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -12.79
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.058
c_scbond_it 2.067
c_mcangle_it 1.98
c_mcbond_it 1.294
c_improper_angle_d 0.78
c_dihedral_angle_d 25.7
c_angle_deg 1.51
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.34
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.41
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1731
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 150

Software

Computing
Computing Package Purpose
MARXDS Data Reduction (intensity integration)
CCP4 (TRUNCATE) Data Reduction (data scaling)
CNS Structure Solution
CNS 0.9 Structure Refinement
Software
Software Name Purpose
CNS version: 0.9 refinement
CNS model building
TRUNCATE data reduction
MARXDS data collection