3F84
Structure of fusion complex of major pilin CfaB and major pilin CfaB of CFA/I pilus from ETEC E. coli
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | The protein, 10 mg/ml in a buffer containing 20 mM Tris-HCl (pH 7.5) and 200 mM NaCl, was mixed in a 1:1 ratio with a well solution containing 30% PEG 8000 and 200 mM ammonium sulfate. VAPOR DIFFUSION |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.53 | 51.34 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 75.151 | α = 90 |
b = 134.217 | β = 90 |
c = 65.04 | γ = 90 |
Symmetry | |
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Space Group | P 21 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 | 100 | CCD | MARMOSAIC 300 mm CCD | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 22-ID | 1.000 | APS | 22-ID |
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 | 2.1 | 15 | 0.095 | 15.4 | 5.6 | 32280 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | 2.35 | 15 | 27000 | 577 | 98.55 | 0.24356 | 0.24247 | 0.29392 | RANDOM | 14.834 |
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] | |
3.77 | -0.54 | -3.23 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 41.608 |
r_dihedral_angle_1_deg | 10.274 |
r_dihedral_angle_4_deg | 5.163 |
r_scangle_it | 4.78 |
r_scbond_it | 3.027 |
r_mcangle_it | 1.775 |
r_angle_refined_deg | 1.377 |
r_mcbond_it | 0.961 |
r_nbtor_refined | 0.264 |
r_nbd_refined | 0.151 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4398 |
Nucleic Acid Atoms | |
Solvent Atoms | 174 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
PHASER | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |