3QMP
Selenium SAD structure solution of proteinase K grown in SO4-less solution and soaked in selenate.
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 293 | UL OF 40 MG/ML PROTEIN AND 1 UL OF WELL SOLUTION: 10 MM CACL2, 500 MM NANO3, 100 MM NA CACODYLATE. Crystal soaked in 33 % (V/V) glycerol, 0.33 M NaSeO4 and 33 % (V/V) mother liquor., pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.04 | 39.65 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 67.967 | α = 90 |
b = 67.967 | β = 90 |
c = 102.215 | γ = 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 AND RH COATED TORROIDAL FOCUSING MIRROR. | 2010-11-25 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X6A | 0.9788 | 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 | 1.1 | 20 | 99.9 | 0.118 | 32.8 | 15 | 97410 | 97410 | 2 | 2 | 4.3 |
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 | 1.1 | 1.12 | 99.8 | 0.549 | 6.5 | 14.2 | 4800 |
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 | 1.1 | 19.81 | 92347 | 4865 | 100 | 0.10352 | 0.10272 | 0.11867 | RANDOM | 4.975 |
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] | |
-0.1 | -0.1 | 0.21 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.905 |
r_dihedral_angle_4_deg | 16.422 |
r_dihedral_angle_3_deg | 11.443 |
r_dihedral_angle_1_deg | 6.164 |
r_sphericity_free | 4.363 |
r_scangle_it | 2.729 |
r_sphericity_bonded | 1.9 |
r_scbond_it | 1.846 |
r_angle_refined_deg | 1.398 |
r_mcangle_it | 1.291 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2032 |
Nucleic Acid Atoms | |
Solvent Atoms | 458 |
Heterogen Atoms | 15 |
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 |