2PKK
Crystal structure of M tuberculosis Adenosine Kinase complexed with 2-fluro adenosine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2PKF | apo MTB ADK |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 290 | Crystals were obtained in conditions containing 0.1 M HEPES-Na, pH 7.5 and 1.4 M trisodium citrate dihydrate, VAPOR DIFFUSION, HANGING DROP, temperature 290K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.31 | 46.79 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( ? ) | Angle ( ? ) |
| a = 71.916 | ¦Á = 90 |
| b = 71.916 | ¦Â = 90 |
| c = 110.521 | ¦Ã = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 2 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 120 | IMAGE PLATE | RIGAKU RAXIS IV | 2006-06-07 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | OTHER | 1.5412 | ||
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 | 1.93 | 62.26 | 99.6 | 0.08 | 23982 | 23982 | |||||||||||||
| 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 | 1.93 | 1.98 | 99.1 | 0.19 | |||||||||||||||
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 | apo MTB ADK | 1.93 | 62.26 | 23982 | 1289 | 99.67 | 0.19165 | 0.18908 | 0.23958 | RANDOM | 34.247 | ||||||
| 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] | |
| 0.04 | 0.02 | 0.04 | -0.07 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.845 |
| r_dihedral_angle_4_deg | 20.918 |
| r_dihedral_angle_3_deg | 14.185 |
| r_scangle_it | 7.58 |
| r_dihedral_angle_1_deg | 6.281 |
| r_scbond_it | 5.644 |
| r_mcangle_it | 4.059 |
| r_mcbond_it | 3.124 |
| r_angle_refined_deg | 1.486 |
| r_nbtor_refined | 0.305 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2455 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 242 |
| Heterogen Atoms | 20 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| CrystalClear | data collection |
| CrystalClear | data reduction |
| CrystalClear | data scaling |
| PHASER | phasing |
