3A3O
Crystal structure of complex between SA-subtilisin and Tk-propeptide with deletion of the five C-terminal residues
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2Z30 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 293 | 0.1M Sodium Cacodylate, 0.2M Zinc Acetate, 2%(w/v) PEG4000, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.99 | 38.34 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 64.478 | α = 90 |
b = 68.494 | β = 90 |
c = 73.874 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | Bruker DIP-6040 | 2008-07-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL44XU | 1.0 | SPring-8 | BL44XU |
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 | 1.9 | 50 | 99.8 | 0.101 | 35.5 | 26709 |
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 | 1.9 | 1.97 | 100 | 0.37 | 8.7 |
Refinement
Statistics | |||||||||||||||||||
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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 (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 2Z30 | 1.9 | 30.25 | 25020 | 1319 | 99.76 | 0.16565 | 0.16341 | 0.20763 | RANDOM | 19.463 |
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] | |
-0.01 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.245 |
r_dihedral_angle_4_deg | 19.84 |
r_dihedral_angle_3_deg | 15.643 |
r_dihedral_angle_1_deg | 5.936 |
r_scangle_it | 3.601 |
r_scbond_it | 2.307 |
r_angle_refined_deg | 1.432 |
r_mcangle_it | 1.429 |
r_mcbond_it | 0.878 |
r_nbtor_refined | 0.306 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2777 |
Nucleic Acid Atoms | |
Solvent Atoms | 270 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |