5I43
Crystal structure of the catalytic domain of MMP-12 in complex with a selective sugar-conjugated triazole-linked carboxylate chelator water-soluble inhibitor (DC32).
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 5I3M |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 295 | Protein-ligand: hMMP12 F171D E219Q 465 micro-M in 0.020 M Tris-HCl, 3 milli-M CaCl2, 0.2 M NaCl, 0.02 M acetohydroxamic acid, 10% DMSO, pH 7.5, 0.5 milli-M inhibitor (DC31). Precipitant: 40% PEG4K, 9% dioxane, 0.18 M imidazole piperidine, pH 8.5. Cryoprotectant: 40% cryomix SM2:(12.5 % ethylene glycol + 12.5 % glycerol + 12.5 % 1,2-propanediol + 25 % DMSO + 37.5 % 1,4-dioxane), 22.5% MPEG 4K, 5% dioxane, 100 mM imidazole piperidine pH 8.5. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.2 | 44.2 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 64.03 | ¦Á = 90 |
b = 63.66 | ¦Â = 103.03 |
c = 79.03 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | mirrors | 2015-04-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | 0.97857 | SOLEIL | PROXIMA 1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | CC (Half) | 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 | 1.95 | 44.56 | 99.9 | 0.172 | 0.167 | 0.993 | 7.24 | 5.97 | 45366 | -3 | 26.387 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.95 | 2 | 99.8 | 0.716 | 2.02 | 3.96 |
Refinement
Statistics | |||||||||||||||||||
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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 | 5I3M | 1.95 | 44.56 | 43013 | 2264 | 99.83 | 0.20205 | 0.20039 | 0.23323 | RANDOM | 27.062 |
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] | |
-1.32 | 0.39 | -1.68 | 2.55 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.101 |
r_dihedral_angle_4_deg | 20.364 |
r_dihedral_angle_3_deg | 13.61 |
r_long_range_B_refined | 8.399 |
r_long_range_B_other | 8.177 |
r_dihedral_angle_1_deg | 7.085 |
r_scangle_other | 5.515 |
r_scbond_it | 3.604 |
r_scbond_other | 3.603 |
r_mcangle_other | 3.45 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5124 |
Nucleic Acid Atoms | |
Solvent Atoms | 595 |
Heterogen Atoms | 206 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
MOLREP | phasing |
Coot | model building |