4R4R
Crystal structure of chimeric beta-lactamase cTEM-19m at 1.2 angstrom resolution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 295 | 30% PEG 4000, 0.2M magnesium chloride, 0.1M TrisHCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.05 | 40.13 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 36.69 | α = 90 |
b = 58.79 | β = 90 |
c = 109.83 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | RAYONIX MX-300 | 2011-08-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CLSI BEAMLINE 08ID-1 | 0.97949 | CLSI | 08ID-1 |
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 | 1.2 | 31.13 | 98.3 | 0.036 | 16.3 | 3 | 73668 | 73668 | 7.2 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.2 | 1.23 | 91.6 | 0.236 | 4.3 | 2.6 | 5000 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | FOURIER SYNTHESIS | THROUGHOUT | PDB ENTRY 4QY5 | 1.2 | 31.13 | 69928 | 69928 | 3688 | 97.91 | 0.10664 | 0.10664 | 0.10504 | 0.13751 | RANDOM | 12.242 |
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] | |
-0.19 | 0.12 | 0.07 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.852 |
r_sphericity_free | 31.286 |
r_dihedral_angle_4_deg | 15.008 |
r_dihedral_angle_3_deg | 11.912 |
r_sphericity_bonded | 11.267 |
r_rigid_bond_restr | 6.064 |
r_dihedral_angle_1_deg | 5.755 |
r_long_range_B_refined | 4.399 |
r_long_range_B_other | 3.282 |
r_scangle_other | 2.559 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2011 |
Nucleic Acid Atoms | |
Solvent Atoms | 408 |
Heterogen Atoms | 7 |
Software
Software | |
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Software Name | Purpose |
MxDC | data collection |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
REFMAC | phasing |