1SQC
SQUALENE-HOPENE-CYCLASE FROM ALICYCLOBACILLUS ACIDOCALDARIUS
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.8 | HANGING DROP CONTAINING: 8 MG/ML PROTEIN, 0.3% N-OCTYLTETRAOXYETHYLENE IN 50 MM SODIUM CITRATE, PH 4.8 WITH A RESERVOIR SOLUTION CONTAINING 100 MM SODIUM CITRATE, PH 4.8., vapor diffusion - hanging drop |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.3 | 63 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 140.7 | α = 90 |
b = 140.7 | β = 90 |
c = 81.9 | γ = 120 |
Symmetry | |
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Space Group | P 3 2 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 | 293 | AREA DETECTOR | SIEMENS | 1995-05-09 | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
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 | 2.85 | 20 | 86 | 0.056 | 11.9 | 2.8 | 18914 | 30 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
2.85 | 2.95 | 49 | 0.36 | 2 | 1.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | MULTIPLE ISOMORPHOUS REPLACEMENT | THROUGHOUT | 2.85 | 20 | 18914 | 989 | 85.7 | 0.167 | 0.167 | 0.243 | RANDOM | 43 |
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 |
x_dihedral_angle_d | 21.4 |
x_angle_deg | 1.2 |
x_improper_angle_d | 1.15 |
x_bond_d | 0.007 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4963 |
Nucleic Acid Atoms | |
Solvent Atoms | 38 |
Heterogen Atoms | 16 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
XDS | data reduction |
XSCALE | data scaling |
CCP4 | data scaling |
X-PLOR | phasing |