4H2E
Crystal structure of an MMP twin inhibitor complexing two MMP-9 catalytic domains
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4H1Q |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 293 | protein: hMMP-9-WT at 2 mg/mL with 120 milli-M acetohydroxamic acid. Reservoir: 40% monomethyl PEG 5,000, 0.1 M glycine. Cryoprotectant: 35% MPEG 5K, 15% PEG 400, 15% AAB buffer at pH 8.0 , VAPOR DIFFUSION, SITTING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.26 | 45.58 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 40.18 | α = 90 |
b = 97.4 | β = 111.99 |
c = 45.69 | γ = 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 | CCD | ADSC QUANTUM 315r | mirrors | 2010-12-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | 0.98011 | 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) | 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 | 2.9 | 50 | 98 | 0.195 | 0.17 | 7.01 | 4.15 | 7301 | 7158 | -3 | 26.65 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.9 | 3.08 | 96.5 | 0.53 | 0.463 | 2.9 | 4.12 | 1189 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | 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 | MOLREP | THROUGHOUT | 4H1Q | 2.902 | 38.85 | -3 | 2 | 7158 | 7128 | 357 | 98.03 | 0.279 | 0.2771 | 0.3114 | RANDOM | 19.01 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.73 | 1.07 | -1.1 | 1.17 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 26.662 |
f_angle_d | 1.458 |
f_chiral_restr | 0.084 |
f_bond_d | 0.011 |
f_plane_restr | 0.008 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2608 |
Nucleic Acid Atoms | |
Solvent Atoms | 148 |
Heterogen Atoms | 199 |
Software
Software | |
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Software Name | Purpose |
DNA | data collection |
MOLREP | phasing |
PHENIX | refinement |
XDS | data reduction |
XDS | data scaling |