2WLJ
Potassium channel from Magnetospirillum magnetotacticum
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1P7B | PDB ENTRY 1P7B |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.6 | 293 | 90MM HEPES, 2.5% PEG 8000, 2.5% PEG 4000, 20% PEG 400, 12.5MM MAGNESIUM CHLORIDE, 42.5MM MAGNESIUM ACETATE, 2.5% GLYCEROL, 14MM HEGA-10, PH 7.6, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.8 | 65 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 105.627 | α = 90 |
| b = 109.385 | β = 90 |
| c = 88.786 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | M | SINGLE WAVELENGTH | ||||||||||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.6 | 26 | 29551 | ||||||||||||||||
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 1P7B | 2.6 | 15 | 27897 | 1525 | 91.58 | 0.22148 | 0.22028 | 0.24331 | RANDOM | 78.133 | ||||||
| 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] | |
| 0.57 | 0.87 | -1.44 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 30.239 |
| r_dihedral_angle_4_deg | 16.804 |
| r_dihedral_angle_3_deg | 16.305 |
| r_dihedral_angle_1_deg | 5.821 |
| r_scangle_it | 5.209 |
| r_mcangle_it | 5.083 |
| r_mcbond_it | 3.334 |
| r_scbond_it | 3.128 |
| r_angle_refined_deg | 1.477 |
| r_chiral_restr | 0.092 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4331 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 173 |
| Heterogen Atoms | 20 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
| CNS | phasing |
