2C4H
Torpedo californica acetylcholinesterase in complex with 500mM acetylthiocholine
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1EA5 | PDB ENTRY 1EA5 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 6 | 277 | 32% PEG200, 150MM MES, PH6, 4 DEG. C. THE CRYSTAL WAS SOAKED IN A 1.5ML MOTHER LIQUOR SOLUTION CONTAINING 500MM OF THE SUBSTRATE ACETYLTHIOCHOLINE, 40 MINUTES PRIOR TO DATA COLLECTION, pH 6.00 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.8 | 68 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 111.99 | α = 90 |
b = 111.99 | β = 90 |
c = 137.12 | γ = 120 |
Symmetry | |
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Space Group | P 31 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC CCD | 2005-04-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID29 | ESRF | ID29 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.15 | 20 | 99.6 | 0.06 | 22.14 | 7.34 | 54312 | 3 | 27.9 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.15 | 2.2 | 98.9 | 0.45 | 3.1 | 4.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1EA5 | 2.15 | 19.8 | 54244 | 2718 | 99.5 | 0.169 | 0.169 | 0.209 | RANDOM | 41.2 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
6.52 | 3.21 | 6.52 | -13.04 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 22.8 |
c_scangle_it | 2.84 |
c_mcangle_it | 2.02 |
c_scbond_it | 2 |
c_angle_deg | 1.3 |
c_mcbond_it | 1.3 |
c_bond_d | 0.006 |
c_bond_d_na | |
c_bond_d_prot | |
c_angle_d |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4245 |
Nucleic Acid Atoms | |
Solvent Atoms | 948 |
Heterogen Atoms | 86 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
XDS | data reduction |
XSCALE | data scaling |
CNS | phasing |