3URJ
Type IV native endothiapepsin
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | Batch method | 4.5 | 298 | 0.1M acetate buffer, 2.2M ammonium sulphate, 10-fold molar excess of inhibitor DB3 over enzyme; enzyme concentration 2mg/ml at room-temperature. , pH 4.5, Batch method, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.06 | 40.19 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 43.11 | α = 90 |
b = 75.7 | β = 97.04 |
c = 42.92 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | 298 | DIFFRACTOMETER | ENRAF-NONIUS FAST | 1991-01-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | ELLIOTT GX-21 | 1.54178 |
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 | 10 | 90.7 | 0.046 | 4.3 | 21222 | 19248 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | FOURIER SYNTHESIS | THROUGHOUT | 1.9 | 10 | 19248 | 18290 | 960 | 0.1491 | 0.1491 | 0.1491 | 0.2131 | random |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_angle_d | 0.021 |
s_bond_d | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2388 |
Nucleic Acid Atoms | |
Solvent Atoms | 385 |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
MADNESS | data collection |
FFT | model building |
SHELXL-97 | refinement |
MADNESS | data reduction |
ROTAVATA | data scaling |
FFT | phasing |