Crystal structure of human MMP-12 in complex with acetohydroxamic acid and a bicyclic inhibitor
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1Y93 | pdb entry 1Y93 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 8 | 298 | 0.1 M Tris-HCl, 30% PEG 6000, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.15 | 42.72 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 51.25 | α = 90 |
| b = 60.179 | β = 114.59 |
| c = 53.974 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 1 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 | 100 | CCD | MAR CCD 165 mm | Fixed exit double crystal Si [111], horizontally focusing | 2005-07-26 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7A | 0.93920 | EMBL/DESY, HAMBURG | BW7A |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 49.08 | 99.1 | 0.053 | 0.053 | 8.6 | 3.1 | 34648 | 34648 | 10.41 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1.32 | 1.39 | 95.6 | 0.282 | 0.282 | 2.1 | 2.9 | 4823 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | 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 1Y93 | 1.32 | 25.68 | 31503 | 31503 | 3144 | 100 | 0.16256 | 0.16256 | 0.16062 | 0.16 | 0.18176 | 0.18 | RANDOM | 13.577 | ||
| 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] | |
| 0.27 | -0.33 | -0.11 | -0.44 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.449 |
| r_dihedral_angle_4_deg | 16.79 |
| r_dihedral_angle_3_deg | 9.33 |
| r_dihedral_angle_1_deg | 5.72 |
| r_sphericity_free | 2.614 |
| r_scangle_it | 2.348 |
| r_sphericity_bonded | 1.86 |
| r_scbond_it | 1.837 |
| r_rigid_bond_restr | 1.751 |
| r_mcangle_it | 1.115 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1238 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 256 |
| Heterogen Atoms | 38 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MAR345 | data collection |
| MOSFLM | data reduction |
| CCP4 | data scaling |
| MOLREP | phasing |














