6Q61
Pore-modulating toxins exploit inherent slow inactivation to block K+ channels
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.6 | 298 | 0.2 M Ammonium sulfate, 0.1 M Sodium acetate trihydrate pH 4.6 and 25% w/v PEG 4,000 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.3 | 46.51 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 51.031 | α = 90 |
b = 51.031 | β = 90 |
c = 42.569 | γ = 120 |
Symmetry | |
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Space Group | P 63 |
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 4 | 2011-11-03 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 0.98 | ESRF | ID14-4 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Rpim I (All) | 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 | 1.3 | 19.62 | 99.78 | 0.01299 | 24.99 | 10.8 | 15585 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.3 | 1.347 | 99.61 | 0.2929 | 10.7 |
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1Y62 | 1.3 | 19.62 | 14804 | 781 | 99.9 | 0.14 | 0.13851 | 0.16741 | RANDOM | 27.133 |
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] | |
1.07 | 0.54 | 1.07 | -3.49 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_mcangle_it | 25.012 |
r_mcangle_other | 24.98 |
r_mcbond_other | 22.831 |
r_mcbond_it | 22.802 |
r_dihedral_angle_2_deg | 18.287 |
r_dihedral_angle_1_deg | 16.117 |
r_long_range_B_other | 15.783 |
r_long_range_B_refined | 15.705 |
r_dihedral_angle_4_deg | 14.687 |
r_rigid_bond_restr | 13.617 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 468 |
Nucleic Acid Atoms | |
Solvent Atoms | 52 |
Heterogen Atoms | 5 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |