7SKL
Complex between S. aureus aureolysin and IMPI mutant I57I
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 293 | Best crystals of aureolysin in complex with IMPI mutant I57F were obtained at 20 dgrees with protein solutions consisting of 5 mg/mL of aureolysin and 2.9 mg/mL of IMPI (peptidase:inhibitor molar ratio of 1:2.5) in 50 mM Tris-HCl, 150 mM sodium chloride, 1.6 mM calcium chloride, 8.3 microM zinc chloride, pH 8.0, which was mixed with reservoir solution comprising 0.1 M Bis-Tris, 25% (w/v) PEG 3350, pH 5.5. |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.34 | 47.35 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 68.08 | α = 90 |
b = 68.08 | β = 90 |
c = 166.69 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 41 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2020-07-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALBA BEAMLINE XALOC | 0.9793 | ALBA | XALOC |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 1.6 | 68.1 | 99.7 | 0.05 | 0.029 | 0.999 | 14.2 | 4 | 99152 | 34.4 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.6 | 1.7 | 99.4 | 1.069 | 0.618 | 0.999 | 1.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 3SSB, 1BQB | 1.6 | 68.08 | 99151 | 681 | 99.706 | 0.158 | 0.1579 | 0.1878 | 32.642 |
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] | |
10.816 | 10.816 | -21.633 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.058 |
r_dihedral_angle_3_deg | 16.787 |
r_dihedral_angle_4_deg | 12.014 |
r_dihedral_angle_1_deg | 7.56 |
r_lrange_it | 4.481 |
r_scangle_it | 2.845 |
r_mcangle_it | 2.486 |
r_scbond_it | 2.052 |
r_mcbond_it | 1.781 |
r_angle_refined_deg | 1.757 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 5715 |
Nucleic Acid Atoms | |
Solvent Atoms | 559 |
Heterogen Atoms | 28 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |