1BYW
STRUCTURE OF THE N-TERMINAL DOMAIN OF THE HUMAN-ERG POTASSIUM CHANNEL
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 7 | PROTEIN SOLUTION AT 10MG/ML IN 10MM DTT, 5 MM N-OCTYL-GLUCO MIXED WITH EQUAL VOLUME OF 100 MM HEPES PH 7.0, 0.8-1.0 M SODIUM AND POTASSIUM TARTRAT |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.49 | 25 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 56.1 | α = 90 |
b = 56.1 | β = 90 |
c = 135.5 | γ = 120 |
Symmetry | |
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Space Group | P 65 2 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 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CHESS BEAMLINE F2 | 0.9793, 0.97896, 0.973 | CHESS | F2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 2.6 | 13 | 95.8 | 0.092 | 34 | 7 | 4131 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.6 | 2.7 | 87.9 | 0.354 | 5 | 2.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | MAD | THROUGHOUT | 2.6 | 13 | 2 | 4146 | 586 | 97 | 0.252 | 0.252 | 0.25 | 0.286 | 0.29 | RANDOM | 33.2 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 26.42 |
x_mcangle_it | 2.032 |
x_scangle_it | 1.831 |
x_scbond_it | 1.119 |
x_mcbond_it | 1.098 |
x_angle_deg | 0.833 |
x_improper_angle_d | 0.455 |
x_bond_d | 0.004 |
x_bond_d_na | |
x_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 814 |
Nucleic Acid Atoms | |
Solvent Atoms | 27 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
CCP4 | model building |
X-PLOR | refinement |
CCP4 | phasing |