2WLI
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: 8MG/ML KIRBAC3.1 150MM KCL 20MM TRIS8.0 0.05% TDM 4MM LDAO PROTEIN AND PRECIPITANT WERE COMBINED IN A 1:1 RATIO AND EQUILIBRATED AGAINST A RESERVOIR OF PRECIPITANT IN A SITTING-DROP VAPOUR-DIFFUSION SET-UP. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.44 | 72 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 113.409 | α = 90 |
b = 105.009 | β = 90 |
c = 89.422 | γ = 90 |
Symmetry | |
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Space Group | P 21 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 | MIRRORS | 2008-05-18 | 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 | 3.1 | 50 | 100 | 0.13 | 16.6 | 7.9 | 20089 | -3 |
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 | 0.64 | 3.5 | 8.1 |
Refinement
Statistics | |||||||||||||||||||
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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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1XL4 | 3.09 | 15 | 18847 | 998 | 100 | 0.26655 | 0.26538 | 0.26 | 0.28767 | 0.29 | SHELLS | 32.917 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[2][2] | Anisotropic B[3][3] | ||||
2.87 | 1.02 | -3.89 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 25.641 |
r_dihedral_angle_4_deg | 23.096 |
r_dihedral_angle_3_deg | 18.349 |
r_dihedral_angle_1_deg | 5.614 |
r_angle_other_deg | 3.098 |
r_angle_refined_deg | 1.339 |
r_chiral_restr | 0.079 |
r_bond_refined_d | 0.012 |
r_gen_planes_refined | 0.005 |
r_gen_planes_other | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4261 |
Nucleic Acid Atoms | |
Solvent Atoms | 2 |
Heterogen Atoms | 4 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |