7JNO
X-ray crystallographic structure of the NS3 helicase domain from Tick-borne encephalitis virus
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 293 | Crystals were initially identified in the Morpheus II screen condition G5 (15% PEG 3K, 20% 1,2,4 butanetriol, 1% NDSB-256, 20 mM arginine, 20 mM threonine, 20 mM histidine, 20 mM hydroxylysine, 20 mM trans-4-hydroxy-L-proline, and buffered by 50 mM BES and 50 mM triethanolamine at pH 7.5). Seeds were generated from this condition and used for random microseed matrix screening (rMMS) using a protein concentration of 10-12 mg/ml. Final crystals were identified in the Index HT screen condition H2 (0.2 M Potassium sodium tartrate tetrahydrate, 20% w/v Polyethylene glycol 3,350). Crystals were cryoprotected by transfer to a drop containing a 4:1 ratio of precipitant ethylene glycol |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.24 | 44.97 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 42.787 | α = 90 |
b = 55.442 | β = 93.75 |
c = 91.267 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 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 | PIXEL | DECTRIS EIGER X 9M | 2019-09-06 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS-II BEAMLINE 17-ID-1 | 0.920089 | NSLS-II | 17-ID-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 1.95 | 45.55 | 99.5 | 0.123 | 0.135 | 0.053 | 0.986 | 7.7 | 6.1 | 31169 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.95 | 2 | 93.7 | 0.28 | 0.327 | 0.162 | 0.453 | 4.2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | 5GJC | 1.95 | 45.55 | 29614 | 1523 | 99.45 | 0.1841 | 0.1821 | 0.2237 | RANDOM | 26.02 |
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] | |
1.16 | 1.36 | -2.97 | 1.62 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 28.36 |
r_dihedral_angle_4_deg | 17.739 |
r_dihedral_angle_3_deg | 13.281 |
r_dihedral_angle_1_deg | 6.751 |
r_angle_refined_deg | 1.632 |
r_angle_other_deg | 1.371 |
r_chiral_restr | 0.079 |
r_bond_refined_d | 0.01 |
r_gen_planes_refined | 0.009 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3346 |
Nucleic Acid Atoms | |
Solvent Atoms | 184 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
Aimless | data scaling |
PHASER | phasing |
PDB_EXTRACT | data extraction |
xia2 | data reduction |