2YNB
Crystal structure of the main protease of coronavirus HKU4 in complex with a Michael acceptor SG85
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 6.9 | 293 | VAPOR DIFFUSION AT 20C, 6% W/V POLYETHYLENE GLYCOL 3350, 2% V/V TACSIMATE, 5% V/V 2-PROPANOL, 0.1 M IMIDAZOLE PH 6.9; THEN THE CRYSTAL WAS SOAKED IN THE MOTHER LIQUOR SUPPLEMENTED WITH 2MM SG85 FOR 48H, TO GET THE COMPLEX CRYSTAL. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.37 | 48 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 79.35 | α = 90 |
b = 79.35 | β = 90 |
c = 178.67 | γ = 120 |
Symmetry | |
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Space Group | P 31 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | MARMOSAIC 225 mm CCD | MIRRORS | 2012-09-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | BESSY BEAMLINE 14.2 | BESSY | 14.2 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.96 | 178.67 | 100 | 0.06 | 29.9 | 11.1 | 47447 | -3 | 29.82 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.96 | 2 | 99.9 | 0.59 | 4.9 | 11.3 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 1.96 | 68.72 | 47400 | 2370 | 99.48 | 0.1727 | 0.1714 | 0.1979 | RANDOM | 35.67 |
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] | |
-1.8022 | -1.8022 | 3.6045 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_other_torsion | 14.88 |
t_omega_torsion | 3.93 |
t_angle_deg | 1.09 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4618 |
Nucleic Acid Atoms | |
Solvent Atoms | 481 |
Heterogen Atoms | 49 |
Software
Software | |
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Software Name | Purpose |
BUSTER | refinement |
autoPROC | data reduction |
XDS | data reduction |
autoPROC | data scaling |
XDS | data scaling |
SCALA | data scaling |