4KOT
Crystal structure of a GNAT superfamily acetyltransferase PA4794 in complex with Cefotaxime
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2I6C |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 289 | 2M ammonium sulfate, 0.1M Bis-Tris pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 289K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.45 | 49.72 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 58.75 | ¦Á = 90 |
b = 76.296 | ¦Â = 90 |
c = 39.298 | ¦Ã = 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 | Beryllium Lenses | 2013-02-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-G | 0.97856 | APS | 21-ID-G |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.55 | 50 | 99.7 | 0.039 | 0.039 | 43.9 | 5.7 | 26238 | 26238 | -3 | 23.3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.55 | 1.58 | 98.9 | 0.625 | 0.625 | 2.4 | 5.6 | 1269 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 2i6c | 1.55 | 32.69 | 24869 | 24869 | 1327 | 99.6 | 0.15831 | 0.15831 | 0.15664 | 0.18975 | RANDOM | 26.981 |
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] | |
1.06 | -1.09 | 0.03 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.677 |
r_dihedral_angle_4_deg | 17.554 |
r_dihedral_angle_3_deg | 11.877 |
r_dihedral_angle_1_deg | 5.391 |
r_angle_refined_deg | 1.992 |
r_angle_other_deg | 0.921 |
r_chiral_restr | 0.12 |
r_bond_refined_d | 0.02 |
r_gen_planes_refined | 0.011 |
r_bond_other_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1239 |
Nucleic Acid Atoms | |
Solvent Atoms | 188 |
Heterogen Atoms | 70 |
Software
Software | |
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Software Name | Purpose |
HKL-3000 | phasing |
REFMAC | refinement |
Coot | model building |
HKL-3000 | data reduction |
HKL-3000 | data scaling |