1UT6
Structure of acetylcholinesterase (E.C. 3.1.1.7) complexed with N-9-(1',2',3',4'-Tetrahydroacridinyl)-1,8- diaminooctane at 2.4 angstroms resolution.
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 5.8 | 277 | PROTEIN WAS CRYSTALLISED FROM 28-33% V/V PEG 200 0.5M MES PH 5.8 AT 4 DEG. CELSIUS; THEN SOAKED IN MOTHER LIQUOR (40% V/V PEG 200 IN 0.1 M MES BUFFER, PH 5.8) CONTAINING 2MM N-9-(1',2',3',4'-TETRAHYDROACRIDINYL) -1,8-DIAMINOOCTANE BIS-HYDROCHLORIDE (A8NH2.2HCL) | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 4.04 | 69.56 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 111.193 | α = 90 |
| b = 111.193 | β = 90 |
| c = 136.853 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 2 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 120 | IMAGE PLATE | RIGAKU IMAGE PLATE | OSMIC BLUE CONFOCAL MIRRO | 2001-01-18 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU RUH3R | |||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.4 | 30 | 97 | 0.053 | 16.9 | 3.22 | 38785 | 37.2 | |||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.4 | 2.49 | 97.5 | 0.397 | 2.44 | 9.95 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 2ACE | 2.4 | 29.14 | 37571 | 1873 | 96.8 | 0.194 | 0.194 | 0.24 | RANDOM | 46.7 | ||||||
| Temperature Factor Modeling | ||||||
|---|---|---|---|---|---|---|
| Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
| 9.8 | 7.96 | 9.8 | -19.61 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| c_dihedral_angle_d | 23.9 |
| c_scangle_it | 2.953 |
| c_scbond_it | 2.059 |
| c_mcangle_it | 1.942 |
| c_angle_deg | 1.7 |
| c_mcbond_it | 1.223 |
| c_improper_angle_d | 1.19 |
| c_bond_d | 0.015 |
| c_bond_d_na | |
| c_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4181 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 160 |
| Heterogen Atoms | 52 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| CNS | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| CNS | phasing |
