9AXG
Human saposin B in the presence of globotriaosylceramide-NBD
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4V2O |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5 | 293 | 500 nL of protein-lipid complex (0.82 mM SapB plus 0.87 mM Gb3-NBD) was mixed with 250 nL of reservoir solution (3.1-3.3 M malonate pH 5) and equilibrated against 70 uL reservoirs at 20 C. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.2 | 61.53 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 66.908 | α = 90 |
b = 66.908 | β = 90 |
c = 87.181 | γ = 120 |
Symmetry | |
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Space Group | P 64 |
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 PILATUS 6M | 2020-11-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.97946 | SSRL | BL12-2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.68 | 34.83 | 99.74 | 0.0432 | 0.998 | 27.07 | 9.7 | 6246 | 82.42 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 2.68 | 2.776 | 100 | 0.368 | 0.963 | 1.51 |
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 | 2.68 | 34.83 | 1.43 | 6241 | 619 | 99.79 | 0.2478 | 0.2436 | 0.2868 | 93.94 |
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 | 7.6974 |
f_angle_d | 0.9621 |
f_chiral_restr | 0.0501 |
f_bond_d | 0.0075 |
f_plane_restr | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1157 |
Nucleic Acid Atoms | |
Solvent Atoms | 3 |
Heterogen Atoms | 7 |
Software
Software | |
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Software Name | Purpose |
PHASER | phasing |
PHENIX | refinement |
xia2 | data reduction |
xia2 | data scaling |