5HQ1
Comment on S. W. M. Tanley and J. R. Helliwell Structural dynamics of cisplatin binding to histidine in a protein Struct. Dyn. 1, 034701 (2014) regarding the refinement of 4mwk, 4mwm, 4mwn and 4oxe and the method we have adopted.
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | BATCH MODE | 4.7 | 294 | CRYSTALLIZATION CONDITIONS: 40MG HEWL CO-CRYSTALLISED WITH 2.6MG CISPLATIN, WITH THE PLATINUM COMPOUNDS BEING IN A 3-FOLD MOLAR EXCESS TO THE PROTEIN. 462.5 UL OF A 0.02M NAAC SOLUTION ALONG WITH 462.5 UL OF A 0.5M NANO3 SOLUTION WAS USED WITH 75 UL DMSO ADDED, BATCH, TEMPERATURE 294K, PH 4.7, EVAPORATION. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.74 | 29.37 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 26.777 | α = 88.9 |
| b = 31.382 | β = 72.31 |
| c = 33.865 | γ = 68.46 |
| Symmetry | |
|---|---|
| Space Group | P 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 200 | CCD | APEX II CCD | 2012-11-03 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | BRUKER AXS MICROSTAR | 1.5418 | ||
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 | 32.09 | 90.8 | 0.0875 | 5.93 | 2.25 | 47695 | 7.4 | |||||||||||
| 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 | 1.1 | 79.7 | 0.2408 | 1.33 | 0.81 | |||||||||||||
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 | 4mwm | 1 | 32.09 | 45284 | 2410 | 90.8 | 0.17317 | 0.17188 | 0.19699 | RANDOM | 11.704 | ||||||
| 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] | |
| 0.38 | 0.14 | -0.87 | -0.27 | 0.54 | -0.34 | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.027 |
| r_sphericity_free | 27.127 |
| r_dihedral_angle_4_deg | 16.472 |
| r_sphericity_bonded | 12.287 |
| r_dihedral_angle_3_deg | 10.297 |
| r_dihedral_angle_1_deg | 6.963 |
| r_rigid_bond_restr | 6.1 |
| r_scangle_other | 4.517 |
| r_scbond_other | 3.804 |
| r_scbond_it | 3.773 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 976 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 91 |
| Heterogen Atoms | 27 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| SAINT | data reduction |
| APEX | data scaling |
| PHASER | phasing |
