4K8W
An arm-swapped dimer of the S. pyogenes pilin specific assembly factor SipA
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 291 | 15 % ethanol, 0.10 M Tris.Cl pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.23 | 61.9 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 53.285 | α = 90 |
b = 53.285 | β = 90 |
c = 131.749 | γ = 90 |
Symmetry | |
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Space Group | P 41 21 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 | 110 | IMAGE PLATE | MAR scanner 345 mm plate | osmic mirrors | 2009-08-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54179 |
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 | 1.67 | 19.31 | 100 | 0.043 | 12.3 | 35.3 | 22923 | 22923 | 19.9 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.67 | 1.76 | 96.9 | 0.262 | 13.3 | 30.2 | 3178 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | SAD | THROUGHOUT | 1.67 | 19.31 | 21670 | 21670 | 1183 | 99.38 | 0.18662 | 0.18662 | 0.18516 | 0.2146 | RANDOM | 20.118 |
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] | |
0.78 | 0.78 | -1.57 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.752 |
r_dihedral_angle_4_deg | 15.669 |
r_dihedral_angle_3_deg | 11.242 |
r_dihedral_angle_1_deg | 8.052 |
r_angle_refined_deg | 1.351 |
r_chiral_restr | 0.121 |
r_gen_planes_refined | 0.019 |
r_bond_refined_d | 0.01 |
r_bond_other_d | |
r_angle_other_deg |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 940 |
Nucleic Acid Atoms | |
Solvent Atoms | 102 |
Heterogen Atoms | 17 |
Software
Software | |
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Software Name | Purpose |
MAR345dtb | data collection |
SHELXS | phasing |
REFMAC | refinement |
XDS | data reduction |
SCALA | data scaling |