8FRB
Mouse acidic mammalian chitinase, catalytic domain in complex with N,N'-diacetylchitobiose at pH 5.25
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.25 | 293.15 | 11 mg/mL AMCase catalytic domain 20% w/v PEG 6000 0.1 M Sodium Acetate pH 5.25 0.2 M Magnesium Chloride 19.33 mM GlcNAc2 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.02 | 39.03 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 91.926 | α = 90 |
b = 106.963 | β = 90 |
c = 146.492 | 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 | PIXEL | DECTRIS PILATUS3 6M | 2021-06-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 8.3.1 | 1.11578 | ALS | 8.3.1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 1.7 | 57.29 | 99.87 | 0.1111 | 0.121 | 0.04745 | 0.997 | 9.09 | 6.4 | 158679 | 12.46 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.7 | 1.761 | 99.88 | 0.5593 | 0.61 | 0.2411 | 0.888 | 3.1 | 6.3 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1.7 | 57.29 | 1.96 | 158666 | 7987 | 99.72 | 0.1441 | 0.1424 | 0.1777 | 15.72 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 11.7122 |
f_angle_d | 0.9177 |
f_chiral_restr | 0.0496 |
f_plane_restr | 0.0074 |
f_bond_d | 0.0056 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 11774 |
Nucleic Acid Atoms | |
Solvent Atoms | 1666 |
Heterogen Atoms | 295 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
xia2 | data reduction |
DIALS | data scaling |
PHASER | phasing |
Coot | model building |