3NCT
X-ray crystal structure of the bacterial conjugation factor PsiB, a negative regulator of reca
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.2 | 298 | 136 mM sodium acetate, pH 5.2, 1.4% PEG 4000, 20% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.81 | 56.24 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 93.815 | α = 90 |
b = 93.815 | β = 90 |
c = 164.827 | γ = 90 |
Symmetry | |
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Space Group | P 43 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 | 2008-04-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.97919 | APS | 21-ID-D |
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 | 2.2 | 30 | 99.8 | 0.059 | 22 | 6 | 71325 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
2.2 | 2.24 | 100 | 0.269 | 5.9 |
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 (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | SAD | THROUGHOUT | 2.2 | 30 | 36000 | 1909 | 99.48 | 0.18619 | 0.18619 | 0.18491 | 0.21029 | RANDOM | 47.049 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.64 | 0.64 | -1.28 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.551 |
r_dihedral_angle_4_deg | 16.85 |
r_dihedral_angle_3_deg | 14.445 |
r_dihedral_angle_1_deg | 5.607 |
r_scangle_it | 2.611 |
r_scbond_it | 1.583 |
r_angle_refined_deg | 1.083 |
r_mcangle_it | 0.819 |
r_mcbond_it | 0.415 |
r_chiral_restr | 0.071 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4298 |
Nucleic Acid Atoms | |
Solvent Atoms | 258 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
ADSC | data collection |
SOLVE | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |