3Q5G
Sulphur SAD structure solution of proteinase K grown in SO4 solution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 293 | 1 muL of 40 mg/ml protein mixed with 1 muL of the mother liquor. Mother liquor : 400 mM Ammonium SO4, 25 % glycerol, 100 mM Na cacodylate pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.03 | 39.46 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 67.864 | ¦Á = 90 |
b = 67.864 | ¦Â = 90 |
c = 102.193 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 43 21 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 | ADSC QUANTUM 270 | Si(111) channel cut mono. Rh coated toroidal focusing mirror. | 2010-11-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X6A | 1.7712 | NSLS | X6A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.77 | 30 | 100 | 0.053 | 90.9 | 25.4 | 24015 | 24015 | 2 | 2 | 11.7 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.77 | 1.8 | 100 | 0.152 | 16.6 | 11.5 | 1175 |
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 | SAD | THROUGHOUT | 1.77 | 30 | 22730 | 1226 | 100 | 0.12596 | 0.12383 | 0.16658 | RANDOM | 10.457 |
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] | |
-0.08 | -0.08 | 0.17 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.018 |
r_dihedral_angle_4_deg | 15.933 |
r_dihedral_angle_3_deg | 11.698 |
r_dihedral_angle_1_deg | 5.892 |
r_scangle_it | 3.694 |
r_scbond_it | 2.281 |
r_angle_refined_deg | 1.372 |
r_mcangle_it | 1.217 |
r_mcbond_it | 0.713 |
r_chiral_restr | 0.109 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2031 |
Nucleic Acid Atoms | |
Solvent Atoms | 397 |
Heterogen Atoms | 12 |
Software
Software | |
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Software Name | Purpose |
DCS_X6A | data collection |
SHELXS | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |