1DD6
IMP-1 METALLO BETA-LACTAMASE FROM PSEUDOMONAS AERUGINOSA IN COMPLEX WITH A MERCAPTOCARBOXYLATE INHIBITOR
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 293 | SITTING DROPS WERE PREPARED BY MIXING EQUAL VOLUMES OF PROTEIN WHICH WAS 14 MG/ ML IN 20MM HEPES, PH 7.5 AND TO WHICH AN EXCESS OF SOLID INHIBITOR HAD BEEN ADDED AND RESERVOIR SOLUTION (30% PEG 2000 MONOMETHYLETHER, 0.1M SODIUM ACETATE, PH 5.0 AND 0.2M AMMONIUM SULFATE). THIS MIXTURE WAS INCUBATED OVERNIGHT AT 4C AND CENTRIFUGED TO REMOVE PRECIPITATE BEFORE SETTING UP CRYSTALLIZATION DROPS. CO-CRYSTALS WERE GROWN FROM 6 ML SITTING DROPS OF THE PROTEIN-RESERVOIR SOLUTION AND 0.3 ML OF THE RESERVOIR SOLUTION AT EITHER ROOM TEMPERATURE OR 4C, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.55 | 51.76 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 49.3 | α = 90 |
b = 51.2 | β = 90 |
c = 203.3 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | 298 | IMAGE PLATE | MARRESEARCH | 1997-04-21 | M | SINGLE WAVELENGTH | ||||||
2 | 1 | x-ray | 100 | IMAGE PLATE | MARRESEARCH | 1998-11-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU300 | |||
2 | SYNCHROTRON | NSLS BEAMLINE X25 | NSLS | X25 |
Data Collection
Overall | |||||||||||||||||||
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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 | 2 | 20 | 0.103 | 21 | 16 | 35656 | 545270 | 2 | 25 |
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 | 2.07 | 97.6 | 0.314 | 7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | 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 | 2 | 20 | 35831 | 33702 | 3355 | 94.1 | 0.198 | 0.198 | 0.259 | RANDOM |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_angle_deg | 2 |
c_bond_d | 0.018 |
c_bond_d_na | |
c_bond_d_prot | |
c_angle_d | |
c_angle_d_na | |
c_angle_d_prot | |
c_angle_deg_na | |
c_angle_deg_prot | |
c_dihedral_angle_d |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3392 |
Nucleic Acid Atoms | |
Solvent Atoms | 340 |
Heterogen Atoms | 72 |
Software
Software | |
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Software Name | Purpose |
AMoRE | phasing |
CNS | refinement |
MAR345 | data collection |
DENZO | data reduction |
SCALEPACK | data scaling |