3A1G
High-Resolution Crystal Structure of RNA polymerase PB1-PB2 subunits from Influenza A Virus
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2ZTT | PDB ENTRY 2ZTT |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 298 | 80mM Sodium Citrate, 20% PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.24 | 45.08 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 60.701 | α = 90 |
b = 69.987 | β = 97.94 |
c = 61.348 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
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 270 | 2009-02-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE BL-17A | 1.0 | Photon Factory | BL-17A |
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 | 1.7 | 50 | 92.2 | 0.044 | 5.1 | 25865 | 25865 |
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) | |||||||||||
1.7 | 1.76 | 73 | 0.124 | 25 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2ZTT | 1.7 | 20 | 25865 | 24512 | 1315 | 100 | 0.24039 | 0.24039 | 0.2377 | 0.28967 | RANDOM | 36.543 |
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] | |
4.34 | 0.7 | -2.46 | -1.69 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.835 |
r_dihedral_angle_4_deg | 18.653 |
r_dihedral_angle_3_deg | 18.17 |
r_dihedral_angle_1_deg | 6.734 |
r_scangle_it | 4.906 |
r_scbond_it | 3.729 |
r_mcangle_it | 2.164 |
r_angle_refined_deg | 1.845 |
r_mcbond_it | 1.503 |
r_nbtor_refined | 0.308 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1826 |
Nucleic Acid Atoms | |
Solvent Atoms | 63 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
ADSC | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |