2X6B
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 | 7.5 | THE CRYSTAL WAS OBTAINED UNDER THE SAME CONDITIONS AS PDB ENTRY 2X6A, BUT SOAKED WITH BARIUM CHLORIDE (5MM FINAL CONCENTRATION) FOR 16HRS PRIOR TO CRYOCOOLING AND DATA COLLECTION, pH 7.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.25 | 71 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 104.798 | α = 90 |
b = 104.798 | β = 90 |
c = 88.417 | 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 QUANTUM 315 | 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 | 3.3 | 50 | 100 | 0.11 | 13.1 | 5.4 | 14195 | -3 | 96.54 |
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 | 3.3 | 3.42 | 100 | 0.87 | 1.9 | 5.4 |
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 | 3.3 | 41.409 | 1.91 | 14168 | 643 | 99.84 | 0.2368 | 0.2343 | 0.2919 |
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] | |
3.3216 | 3.3216 | -6.6431 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 22.055 |
f_angle_d | 1.019 |
f_chiral_restr | 0.066 |
f_bond_d | 0.028 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2229 |
Nucleic Acid Atoms | |
Solvent Atoms | 1 |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |