Crystal Structures of (S)-(-)-Blebbistatin Analogs bound to Dictyostelium discoideum myosin II
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1YV3 | PDB entry 1YV3 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7 | 278 | mixing 5 ul of protein with an equal volume of well solution containing 100 mM MOPS, 250 mM MgCl2, 12% PEG 8000, 1 mM TCEP, and 2 mM Thymol, pH 7.0, vapor diffusion, hanging drop, temperature 278K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.88 | 57.26 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 88.682 | α = 90 |
| b = 146.317 | β = 90 |
| c = 154.061 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 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 | MAR CCD 165 mm | M | SINGLE WAVELENGTH | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 32-ID | 1.0 | APS | 32-ID |
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 | 50 | 98.4 | 0.067 | 10.1 | 5.6 | 57739 | ||||||||||||
| 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) | |||||||||||
| 2.1 | 2.18 | 98.8 | 0.272 | 5.5 | |||||||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB entry 1YV3 | 2.1 | 50 | 54815 | 2919 | 98.36 | 0.19292 | 0.19059 | 0.19 | 0.23773 | 0.24 | RANDOM | 28.502 | ||||
| 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] | |
| 1.08 | -0.27 | -0.81 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.508 |
| r_dihedral_angle_4_deg | 16.326 |
| r_dihedral_angle_3_deg | 13.862 |
| r_dihedral_angle_1_deg | 6.013 |
| r_scangle_it | 3.778 |
| r_scbond_it | 2.652 |
| r_mcangle_it | 1.73 |
| r_angle_refined_deg | 1.605 |
| r_mcbond_it | 1.1 |
| r_symmetry_vdw_refined | 0.327 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 5584 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 436 |
| Heterogen Atoms | 59 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| MOLREP | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| HKL-2000 | data collection |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |














