6FHC
Crystal Structure of the Amyloid-like hexametric polymorph of the LFKFFK segment from the S. aureus PSMalpha3
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 293 | Reservoir contained 0.2M potassium thiocyanate, 20% Polyethylene glycol 3350 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.14 | 42.6 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 35.791 | α = 90 |
b = 35.791 | β = 90 |
c = 9.632 | γ = 120 |
Symmetry | |
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Space Group | P 65 |
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 PILATUS 2M | 2014-07-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID23-2 | 0.8729 | ESRF | ID23-2 |
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) | 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 | 1.5 | 100 | 97.4 | 0.126 | 0.131 | 0.034 | 5.4 | 13.8 | 1179 |
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 | 1.5 | 1.55 | 98.3 | 0.787 | 0.831 | 0.258 | 0.871 | 9.6 |
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 | Ideal Beta-strand of poly-alanine | 1.51 | 31 | 1057 | 121 | 97.76 | 0.1224 | 0.1176 | 0.1623 | RANDOM | 13.433 |
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] | |
0.08 | 0.04 | 0.08 | -0.25 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 19.639 |
r_sphericity_bonded | 9.746 |
r_dihedral_angle_1_deg | 8.623 |
r_dihedral_angle_3_deg | 7.158 |
r_rigid_bond_restr | 2.057 |
r_angle_refined_deg | 1.995 |
r_angle_other_deg | 1.143 |
r_chiral_restr | 0.084 |
r_bond_refined_d | 0.016 |
r_gen_planes_refined | 0.008 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 60 |
Nucleic Acid Atoms | |
Solvent Atoms | 5 |
Heterogen Atoms | 21 |
Software
Software | |
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Software Name | Purpose |
XDS | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |