8QAH
X-ray crystal structure of a de novo designed single-chain parallel coiled-coil alpha-helical barrel with 8 inner helices, sc-CC-8-58
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 293.15 | Pact Premier D11: 0.2 M calcium chloride, 0.1 M TRIS, pH 8, 20 % w/v PEG 6000 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.01 | 38.8 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 46.054 | α = 90 |
b = 78.587 | β = 90.15 |
c = 98.174 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | PIXEL | DECTRIS PILATUS 6M | 2023-05-25 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I24 | 0.99990 | Diamond | I24 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.35 | 49.09 | 99.56 | 0.09588 | 0.1356 | 0.09588 | 0.988 | 5.98 | 2 | 29247 | 14.18 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.35 | 2.434 | 97.85 | 0.4639 | 0.6561 | 0.4639 | 0.681 | 1.81 | 2 |
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 | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2.35 | 49.09 | 1.35 | 29191 | 1393 | 99.56 | 0.1926 | 0.1906 | 0.2323 | 24.25 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 3.33 |
f_angle_d | 0.415 |
f_chiral_restr | 0.032 |
f_bond_d | 0.003 |
f_plane_restr | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5392 |
Nucleic Acid Atoms | |
Solvent Atoms | 142 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
PHASER | phasing |
AutoProcess | data reduction |
AutoProcess | data scaling |