1TW7
Wide Open 1.3A Structure of a Multi-drug Resistant HIV-1 Protease Represents a Novel Drug Target
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1RQ9 | PDB entry 1RQ9 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 295 | sodium chloride, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.5 | 50.74 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 45.043 | α = 90 |
b = 45.043 | β = 90 |
c = 105.744 | γ = 90 |
Symmetry | |
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Space Group | P 41 |
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 210 | 2003-07-27 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-BM | 1.0 | APS | 17-BM |
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 | 1.3 | 20 | 74.7 | 0.043 | 30.5 | 38356 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1.3 | 1.35 | 0.26 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | MOLECULAR REPLACEMENT | FREE R | PDB entry 1RQ9 | 1.3 | 20 | 1.5 | 38356 | 38356 | 2071 | 74.7 | 0.1423 | 0.1423 | 0.2107 | random |
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] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
11 | 1889.3 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_approx_iso_adps | 0.076 |
s_non_zero_chiral_vol | 0.069 |
s_zero_chiral_vol | 0.054 |
s_similar_adp_cmpnt | 0.054 |
s_from_restr_planes | 0.0293 |
s_angle_d | 0.029 |
s_bond_d | 0.011 |
s_anti_bump_dis_restr | 0.011 |
s_rigid_bond_adp_cmpnt | 0.004 |
s_similar_dist |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1562 |
Nucleic Acid Atoms | |
Solvent Atoms | 380 |
Heterogen Atoms | 2 |
Software
Software | |
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Software Name | Purpose |
Quantum | data collection |
HKL-2000 | data reduction |
CCP4 | model building |
SHELXL-97 | refinement |
HKL-2000 | data scaling |
CCP4 | phasing |