Crystal structure of ketosteroid isomerase Y14AY55FD99A from Pseudomonas testosteroni
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3M8C | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.2 | 298 | 2.0 M ammonium sulfate, 40 mM potassium phosphate, 1 mM EDTA, 2 mM DTT, pH 7.2, VAPOR DIFFUSION, SITTING DROP, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.79 | 55.87 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 64.227 | α = 90 |
| b = 64.227 | β = 90 |
| c = 496.554 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 61 2 2 |
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 315r | 2011-05-11 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL9-1 | 0.979 | SSRL | BL9-1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.5 | 38.196 | 99.5 | 0.077 | 21.9 | 10.5 | 22525 | 22525 | |||||||||||
| 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) | ||||||||||
| 1 | 2.5 | 2.64 | 97 | 0.011 | 1.116 | 0.7 | 6.8 | 3061 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3M8C | 2.5 | 35.05 | 22369 | 22369 | 1145 | 99.44 | 0.2416 | 0.2416 | 0.2386 | 0.24 | 0.3001 | 0.29 | RANDOM | 62.921 | ||
| 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] | |
| 3.43 | 1.72 | 3.43 | -5.15 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.349 |
| r_dihedral_angle_3_deg | 18.19 |
| r_dihedral_angle_4_deg | 16.636 |
| r_dihedral_angle_1_deg | 6.296 |
| r_scangle_it | 2.186 |
| r_scbond_it | 1.332 |
| r_angle_refined_deg | 1.33 |
| r_angle_other_deg | 0.818 |
| r_mcangle_it | 0.777 |
| r_mcbond_it | 0.419 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3708 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 59 |
| Heterogen Atoms | 45 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| MOLREP | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| Blu-Ice | data collection |
| XDS | data reduction |














