1A9M
G48H MUTANT OF HIV-1 PROTEASE IN COMPLEX WITH A PEPTIDIC INHIBITOR U-89360E
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1GNO | PDB ENTRY 1GNO |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 6.8 | THE PROTEIN SOLUTION CONTAINED 6.5 MG/ML MUTANT HIV-1 PROTEASE IN 20 MM SODIUM ACETATE, 1 MM DITHIOTHREITOL, PH 5.5, WITH A 10-FOLD MOLAR EXCESS OF INHIBITOR. THE RESERVOIR SOLUTIONS FOR THE VAPOR DIFFUSION CONTAINED 10% DIMETHYLSULFOXIDE, 30 MM B-MERCAPTOETHANOL AND 4% 2-PROPANOL IN ADDITION TO THE PRECIPITANT. THE MOST FAVORABLE CRYSTALLIZATION CONDITIONS WERE 42% SATURATED AMMONIUM SULFATE, PH 6.8., vapor diffusion |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.8 | 55.9 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 58.5 | α = 90 |
b = 88.2 | β = 90 |
c = 94.2 | γ = 90 |
Symmetry | |
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Space Group | I 2 2 2 |
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 | 293 | AREA DETECTOR | SIEMENS | 1996-04-07 | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.3 | 100 | 78 | 0.073 | 15 | 3 | 8697 | 37 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.3 | 2.42 | 52.6 | 0.32 | 3 | 2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 1GNO | 2.3 | 8 | 8697 | 78 | 0.185 | 0.185 | 36.6 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 28.5 |
x_angle_deg | 1.8 |
x_improper_angle_d | 1.7 |
x_bond_d | 0.013 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1528 |
Nucleic Acid Atoms | |
Solvent Atoms | 59 |
Heterogen Atoms | 42 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
SAINT | data reduction |
SAINT | data scaling |
X-PLOR | phasing |