7PGF
Calcium-selective Sp1 channel pore domain only
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 293 | CaVSp1p purified in DM was concentrated to 13 mg mL-1 and reconstituted in bicelles prior crystallization to a final bicelle concentration of 8%. Native crystals grew in 25% PEG4000, 200 mM MgCl2, 100 mM MES, pH 6.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
5.43 | 77.37 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 133.682 | α = 90 |
b = 133.682 | β = 90 |
c = 130.744 | γ = 120 |
Symmetry | |
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Space Group | P 61 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 | MAR CCD 130 mm | 2012-10-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 8.3.1 | 1.11587 | ALS | 8.3.1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | 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 | 3.5 | 50 | 97.17 | 0.156 | 0.995 | 10.2 | 11.5 | 9000 | 139.32 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 3.5 | 3.622 | 1 | 0.126 |
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MAD | FREE R-VALUE | 3.5 | 14.93 | 1.34 | 9000 | 423 | 99.86 | 0.2658 | 0.2646 | 0.2897 | RANDOM | 153.64 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 8.1736 |
f_angle_d | 1.4487 |
f_chiral_restr | 0.0756 |
f_plane_restr | 0.0119 |
f_bond_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2031 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
MOSFLM | data reduction |
SCALA | data scaling |
PHASER | phasing |