2G7Q
Structure of the Light Chain of Botulinum Neurotoxin Serotype A Bound to Small Molecule Inhibitors
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2G7P | PDB ENTRY 2G7P |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.6 | 294 | 0.1M Sodium Citrate, PEG4K, 0.2 M Ammonium Acetate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.26 | 62.25 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 69.32 | ¦Á = 90 |
b = 109.94 | ¦Â = 90 |
c = 166.64 | ¦Ã = 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 | ADSC QUANTUM 315 | 2005-11-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 14-BM-C | 1.0 | APS | 14-BM-C |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.41 | 21.55 | 98.7 | 0.112 | 20.4 | 9.9 | 49534 | 49534 | -3 | 27.9 |
Highest Resolution Shell | |||||||||||||||||||
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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) | |||||||||||
2.4 | 2.49 | 97.4 | 0.238 | 4.3 | 6.6 | 4803 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | FOURIER SYNTHESIS | THROUGHOUT | PDB ENTRY 2G7P | 2.41 | 21.55 | 49502 | 4984 | 98.5 | 0.224 | 0.224 | 0.261 | RANDOM | 34.4 |
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] | |
0.14 | -1.2 | 1.06 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 22.9 |
c_scangle_it | 3.35 |
c_mcangle_it | 2.64 |
c_scbond_it | 2.21 |
c_angle_deg | 1.9 |
c_mcbond_it | 1.6 |
c_improper_angle_d | 1.48 |
c_bond_d | 0.071 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6623 |
Nucleic Acid Atoms | |
Solvent Atoms | 159 |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |