1K5M
Crystal Structure of a Human Rhinovirus Type 14:Human Immunodeficiency Virus Type 1 V3 Loop Chimeric Virus MN-III-2
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4RHV | Wild-type HRV14 structure coordinates (PDB entry 4RHV) |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 1.5 M ammonium formate and 0.15 M sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.75 | 67.2 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 318.9 | α = 90 |
b = 349.3 | β = 90 |
c = 368.4 | 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 | 108 | CCD | NONIUS CAD4 | mirror | 1998-02-01 | M | SINGLE WAVELENGTH | |||||
2 | 1 | x-ray | 108 | CCD | ADSC QUANTUM 4 | mirror | 1998-11-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X25 | 1.10 | NSLS | X25 |
2 | SYNCHROTRON | CHESS BEAMLINE F1 | 0.92 | CHESS | F1 |
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 | 2.7 | 50 | 92.8 | 0.114 | 10 | 13.8 | 513239 | 513239 | 29 |
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) | |||||||||||
2.7 | 2.8 | 82.7 | 0.212 | 4 | 5 | 46826 |
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 (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | The free R-factor was calculated in early stages of model building and refinement to monitor the progress. Due to the strong interdependency of structure factors in the presence of high NCS, the free R-factor did not provide any useful information. Therefore, in the later stages of structure refinement, all data were included and no free R factor was calculated. | Wild-type HRV14 structure coordinates (PDB entry 4RHV) | 2.7 | 50 | 2 | 513239 | 494360 | 89 | 0.216 | 0.216 | 0.22 | 18.4 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 26.7 |
x_improper_angle_d | 1.7 |
x_angle_deg | 1 |
x_bond_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6459 |
Nucleic Acid Atoms | |
Solvent Atoms | 637 |
Heterogen Atoms | 21 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | model building |
X-PLOR | refinement |
X-PLOR | phasing |