4RWB
Racemic influenza M2-TM crystallized from monoolein lipidic cubic phase
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3LBW | PDB entry 3LBW |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | monoolein lipidic cubic phase | 6.5 | 298 | Peptide combined with monoolein at 15-20% (w/w) by codissolving in trifluoroethanol, LCP generated by mixing vacuum-dried solid components with water at 60:40 lipid:water ratio. 200 nL LCP bolus combined with 1 uL solution containing 0.1 M ADA pH 6.5, 24% MPD in glass sandwich plates. Crystals grew in less than 1 day. , monoolein lipidic cubic phase, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.36 | 47.99 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 40.93 | α = 90 |
b = 41.23 | β = 95.68 |
c = 27.93 | γ = 90 |
Symmetry | |
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Space Group | P 1 21/c 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 | MARMOSAIC 225 mm CCD | 2012-06-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97872 | APS | 21-ID-F |
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 | 2 | 19.39 | 96.2 | 0.127 | 8.88 | 7.14 | 6119 | 17.3 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2 | 2.03 | 95.9 | 0.56 | 2.27 | 7.2 |
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 | PDB entry 3LBW | 2 | 19.39 | 5919 | 283 | 96.64 | 0.2816 | 0.2808 | 0.2956 | RANDOM | 28.352 |
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] | |
2.77 | -0.32 | -2.71 | -0.03 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.808 |
r_dihedral_angle_4_deg | 19.944 |
r_dihedral_angle_3_deg | 10.465 |
r_dihedral_angle_1_deg | 3.616 |
r_angle_refined_deg | 1.641 |
r_angle_other_deg | 0.799 |
r_chiral_restr | 0.086 |
r_bond_refined_d | 0.013 |
r_gen_planes_refined | 0.007 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 354 |
Nucleic Acid Atoms | |
Solvent Atoms | 4 |
Heterogen Atoms | 75 |
Software
Software | |
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Software Name | Purpose |
XPREP | data reduction |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
EMBL | data collection |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |