3AI0
Crystal structure of beta-glucosidase from termite Neotermes koshunensis in complex with para-nitrophenyl-beta-D-glucopyranoside
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3AHZ | PDB ENTRY 3AHZ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 298 | 0.1M Bis-Tris, 18-21%(w/v) PEG 3350, 0.1-0.25M MgCl2, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.17 | 43.28 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 93.089 | α = 90 |
b = 68.755 | β = 95.68 |
c = 75.746 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
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 210 | Vertically Focusing Mirror | 2009-04-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSRRC BEAMLINE BL13C1 | 0.97315 | NSRRC | BL13C1 |
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 | 1.4 | 30 | 99.5 | 0.041 | 31.2 | 4.5 | 93699 | 93220 | 1 | 18.6 |
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) | |||||||||||
1.4 | 1.45 | 97.4 | 0.428 | 3 | 4 | 9350 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3AHZ | 1.4 | 25.4 | 84715 | 4491 | 95.07 | 0.12341 | 0.12184 | 0.15304 | RANDOM | 13.103 |
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] | |
-1.04 | -0.3 | -0.32 | 1.3 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 31.826 |
r_dihedral_angle_4_deg | 12.564 |
r_dihedral_angle_3_deg | 10.29 |
r_sphericity_free | 7.032 |
r_dihedral_angle_1_deg | 5.485 |
r_scangle_it | 4.402 |
r_sphericity_bonded | 3.766 |
r_scbond_it | 3.119 |
r_mcangle_it | 2.179 |
r_rigid_bond_restr | 1.705 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3810 |
Nucleic Acid Atoms | |
Solvent Atoms | 781 |
Heterogen Atoms | 27 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
CNS | refinement |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
CNS | phasing |