2VB8
beta-ketoacyl-ACP synthase I (KAS) from E. coli with bound inhibitor thiolactomycin
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1EK4 | PDB ENTRY 1EK4 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | CRYSTALLIZATION CONDITIONS: HANGING DROP AGAINST 3% PEG 400, 1.9 M AMMONIUM SULPHATE, 0.1 M TRIS PH 7.5; SOAK WITH 0.3MM LIGAND IN 2.3M AMMONIUM SULPHATE, 0.1M TRIS PH7.5, 3% DMSO | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.4 | 48 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 59.139 | α = 90 |
| b = 138.345 | β = 90 |
| c = 211.968 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 |
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 | 2004-07-08 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X06SA | SLS | X06SA | |
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 | 1.5 | 20 | 95.8 | 0.09 | 14.2 | 3.1 | 515847 | 3 | |||||||||||
| 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 | 1.5 | 1.6 | 78 | 0.43 | 3.51 | 2.68 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | PDB ENTRY 1EK4 | 1.52 | 119.52 | 253711 | 13446 | 99.3 | 0.153 | 0.151 | 0.185 | RANDOM | 16.85 | ||||||
| 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 | 0.48 | -0.49 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.563 |
| r_dihedral_angle_4_deg | 17.164 |
| r_dihedral_angle_3_deg | 12.244 |
| r_dihedral_angle_1_deg | 5.898 |
| r_scangle_it | 4.564 |
| r_scbond_it | 3.183 |
| r_mcangle_it | 2.766 |
| r_mcbond_it | 2.215 |
| r_angle_refined_deg | 1.502 |
| r_nbtor_refined | 0.306 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 11748 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 2645 |
| Heterogen Atoms | 58 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| XSCALE | data scaling |
