Crystal structure of botulinum neurotoxin type A complexed with monoclonal antibody CR1
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3BTA | PDB ENTRY 3BTA |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5.5 | 297 | 8% PEG 20000, 8% PEG 550 MME, 200 mM calcium acetate, 100 mM sodium acetate, pH 5.50, VAPOR DIFFUSION, SITTING DROP, temperature 297K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.61 | 65.94 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 98.046 | ¦Á = 90 |
b = 148.249 | ¦Â = 90 |
c = 196.25 | ¦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 | IMAGE PLATE | MAR scanner 345 mm plate | 2005-02-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | SSRL | BL11-1 |
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 | 2.6 | 50 | 89.4 | 0.095 | 87498 | 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 | 2.61 | 2.68 | 44.8 | 0.388 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3BTA | 2.61 | 50 | 2 | 87498 | 74507 | 3912 | 89.4 | 0.208 | 0.206 | 0.21 | 0.246 | 0.25 | RANDOM | 11.41 |
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] | |
-4.77 | 0.04 | 4.73 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.123 |
r_dihedral_angle_3_deg | 17.83 |
r_dihedral_angle_4_deg | 16.494 |
r_dihedral_angle_1_deg | 11.264 |
r_scangle_it | 1.968 |
r_angle_refined_deg | 1.5 |
r_scbond_it | 1.209 |
r_angle_other_deg | 0.908 |
r_mcangle_it | 0.907 |
r_mcbond_it | 0.537 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 13505 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 2 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |