2X6A
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 | 2WLH | PDB ENTRY 2WLH |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | SITTING DROP VAPOUR DIFFUSION, 2:1 PROTEIN:CRYSTALLANT RATIO. CRYSTALLANT: 25% PEG400 2.5% PEG4K 2.5% PEG8K 10% GLYCEROL 90MM HEPES PH 7.5 ADDITIVES: FOS-CHOLINE-ISO-11-6U (ANATRACE) NONYL MALTOSIDE (ANATRACE) FOS-CHOLINE ISO-9 (ANATRACE) |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.84 | 67.98 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 107.759 | α = 90 |
b = 107.759 | β = 90 |
c = 89.242 | γ = 90 |
Symmetry | |
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Space Group | P 4 21 2 |
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 | 2009-09-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX2 | Australian Synchrotron | MX2 |
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 | 3.1 | 50 | 100 | 0.14 | 20.1 | 13.8 | 10032 | -3 | 73.6 |
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 | 3.1 | 3.21 | 100 | 0.96 | 2.9 | 14.3 |
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 2WLH | 3.1 | 44.621 | 0.17 | 9676 | 464 | 96.6 | 0.2226 | 0.2201 | 0.2713 |
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] | |
5.6162 | 5.6162 | -11.2324 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 22.631 |
f_angle_d | 1.108 |
f_chiral_restr | 0.071 |
f_bond_d | 0.014 |
f_plane_restr | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2126 |
Nucleic Acid Atoms | |
Solvent Atoms | 1 |
Heterogen Atoms | 14 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |