1K32
Crystal structure of the tricorn protease
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 291 | 25% isopropanol, 0.1 M MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.54 | 51.56 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 95.86 | α = 90 |
b = 245.998 | β = 105.296 |
c = 159.04 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 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 | ADSC QUANTUM 4 | 2000-12-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 0.939 | ESRF | ID14-4 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 2 | 20 | 82.8 | 0.102 | 0.102 | 6.7 | 2 | 475881 | 394093 | 2 | 3 | 26.2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
2 | 2.05 | 68.1 | 0.313 | 0.313 | 1.9 | 1.2 | 394093 |
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-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MIR+MAD+NCS Averaging | direct space free density correlation reciprocal free R | 2 | 20 | 374269 | 374269 | 19824 | 78.6 | 0.245 | 0.2635 | 5% | 30.74 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
c_angle_d | 1.34 |
c_bond_d | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 49062 |
Nucleic Acid Atoms | |
Solvent Atoms | 2394 |
Heterogen Atoms |
Software
Software | |
---|---|
Software Name | Purpose |
RSPS | model building |
MLPHARE | phasing |
MAIN | model building |
SOLOMON | phasing |
CNS | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
RSPS | phasing |
MAIN | phasing |