1MR7
Crystal Structure of Streptogramin A Acetyltransferase
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 290 | Sodium Formate 2.7M, VAPOR DIFFUSION, HANGING DROP, temperature 290K | |
| 2 | VAPOR DIFFUSION, HANGING DROP | 290 | Sodium Formate 2.7M, VAPOR DIFFUSION, HANGING DROP, temperature 290K | |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 181.393 | α = 90 |
| b = 183.001 | β = 90 |
| c = 184.124 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | F 2 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 | MARRESEARCH | Mirrors | 2000-11-10 | M | MAD | |||||
| 2 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 4 | Mirrors | 2001-04-10 | M | SINGLE WAVELENGTH | |||||
| 1,2 | 1 | |||||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE BM14 | 0.97947, 0.97939, 0.96863 | ESRF | BM14 |
| 2 | SYNCHROTRON | SRS BEAMLINE PX14.2 | 0.97800 | SRS | PX14.2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||
| 1,2 | 1.8 | 20 | 0.053 | 21.3 | 3.37 | 140296 | 39.7 | ||||||||||||
| 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) | |||||||||||
| 1,2 | 1.8 | 1.84 | 0.438 | 3.27 | |||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | MAD | THROUGHOUT | 1.8 | 21.22 | 129459 | 6864 | 97.26 | 0.17792 | 0.17792 | 0.17636 | 0.20687 | RANDOM | 17.225 | ||||||
| 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] | |
| -0.06 | 0.05 | 0.01 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 20.394 |
| r_scangle_it | 8.608 |
| r_dihedral_angle_1_deg | 8.048 |
| r_scbond_it | 6.804 |
| r_mcangle_it | 4.601 |
| r_mcbond_it | 3.304 |
| r_angle_refined_deg | 1.244 |
| r_angle_other_deg | 0.744 |
| r_xyhbond_nbd_other | 0.236 |
| r_nbd_refined | 0.224 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 9523 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 694 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| SHELXD | phasing |
| REFMAC | refinement |
