2WLN
POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1XL4 | PDB ENTRY 1XL4 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | PRECIPITANT: 15 % PEG 400 2.5 % PEG 4000 2.5 % PEG 8000 10 % GLYCEROL 90 MM HEPES PH 7.5 PROTEIN: KIRBAC3.1, 8MG/ML 150MM KCL 20MM TRIS PH 8.0 0.05% TDM 10MM EDTA 4MM LDAO PROTEIN AND PRECIPITANT WERE MIXED IN A 1:1 RATIO AND EQUILIBRATED AGAINST A RESERVOIR OF PRECIPITANT SOLUTION IN A SITTING DROP VAPOUR DIFFUSION SET-UP. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
6.75 | 81.8 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 106.68 | α = 73.95 |
b = 109.06 | β = 82.3 |
c = 146.39 | γ = 89.88 |
Symmetry | |
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Space Group | P 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 | MARRESEARCH | 2008-07-31 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | Australian Synchrotron | MX1 |
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 | 3.6 | 70 | 97 | 0.18 | 4.1 | 1.9 | 94851 | -3 | 91.74 |
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 | 3.6 | 3.79 | 97.1 | 0.86 | 1.6 | 1.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 1XL4 | 3.44 | 15 | 1.96 | 76716 | 3918 | 93.18 | 0.2664 | 0.266 | 0.2725 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 18.188 |
f_angle_d | 1.671 |
f_chiral_restr | 0.085 |
f_bond_d | 0.019 |
f_plane_restr | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 17661 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 6 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
MOSFLM | data reduction |
SCALA | data scaling |
PHASER | phasing |