3EYD
Structure of HCV NS3-4A Protease with an Inhibitor Derived from a Boronic Acid
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2O8M | HCV NS3(1-181)S139A - NS4a pdb2o8m.ent |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.6 | Crystallization was performed by the vapor diffusion method using hanging drops (4 L protein solution mixed with 4 L (0.75 - 1.00) M NaCl - 0.1 M MES - 0.1 M Na/K PO4, pH 5.6 - 6.2) suspended over 1 mL reservoir solutions of (1.25 - 1.50) M NaCl - 0.1 M MES - 0.1 M Na/K PO4 - 5 mM -mercaptoethanol, pH 5.6-6.2. The trays were set at 4oC for 5-7 days to control nucleation, followed by incubation for 3 weeks at 12oC to maximize crystal growth., VAPOR DIFFUSION, HANGING DROP, temperature 277, then 285K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.89 | 68.37 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 224.483 | α = 90 |
b = 224.483 | β = 90 |
c = 75.786 | γ = 120 |
Symmetry | |
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Space Group | H 3 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 | 100 | CCD | ADSC QUANTUM 210 | 2004-04-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.000 | APS | 17-ID |
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 | 2.15 | 50 | 71.6 | 0.075 | 13.5 | 2.8 | 39911 | 28576 | 1 |
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) | |||||||||||
2.15 | 2.2 | 20.6 | 0.288 | 2 | 2631 |
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-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | FOURIER SYNTHESIS | THROUGHOUT | HCV NS3(1-181)S139A - NS4a pdb2o8m.ent | 2.3 | 8 | 1 | 25697 | 20909 | 2089 | 0.18 | 0.19 | 0.256 | 0.18 | Random |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_angle_deg | 2.019 |
c_improper_angle_d | 1.476 |
c_bond_d | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2727 |
Nucleic Acid Atoms | |
Solvent Atoms | 257 |
Heterogen Atoms | 45 |
Software
Software | |
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Software Name | Purpose |
ADSC | data collection |
X-PLOR | model building |
X-PLOR | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |
X-PLOR | phasing |