X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 25.0
Details trisodium citrate, 1,2,3-heptanetriol, 12-crown-4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 25K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.13 α = 90
b = 55.66 β = 94.77
c = 65.84 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-06-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C 1.0 APS 14-BM-C

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
1.9 30 99.9 -- -- -- -- 32661 32661 0.0 0.0 14.7
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)
1.9 1.97 99.9 -- -- -- -- --

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 1.9 28.47 -- 0.0 32255 32255 1326 98.8 0.192 0.192 0.192 0.24 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 1.9 2.02 -- 216 5036 0.215 0.271 0.018 97.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 27.9
Anisotropic B[1][1] 10.18
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 3.25
Anisotropic B[2][2] -4.7
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -5.48
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.67
c_scbond_it 2.7
c_angle_deg 1.4
c_bond_d 0.01
c_scangle_it 3.99
c_dihedral_angle_d 22.2
c_improper_angle_d 0.95
c_mcangle_it 2.45
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.26
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3195
Nucleic Acid Atoms 0
Heterogen Atoms 42
Solvent Atoms 162

Software

Software
Software Name Purpose
EPMR phasing
CNS refinement version: 0.9
DENZO data reduction
SCALEPACK data scaling