3POH
Crystal structure of an endo-beta-N-acetylglucosaminidase (BT_3987) from BACTEROIDES THETAIOTAOMICRON VPI-5482 at 1.55 A resolution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8 | 277 | 1.0M NaCitrate, 0.1M Imidazole pH 8.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.16 | 42.98 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 74.449 | α = 90 |
b = 74.449 | β = 90 |
c = 133.913 | γ = 120 |
Symmetry | |
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Space Group | P 31 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 315 | 2010-10-12 | M | MAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 8.2.2 | 0.9537,0.9795,0.9793 | ALS | 8.2.2 |
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 | 1.55 | 29.712 | 99.3 | 0.051 | 17.76 | 62783 | -3 | 16.663 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.55 | 1.61 | 94.1 | 0.357 | 2.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | MAD | THROUGHOUT | 1.55 | 29.712 | 62730 | 3178 | 99.52 | 0.1375 | 0.1361 | 0.1636 | RANDOM | 23.5834 |
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] | |
0.34 | 0.17 | 0.34 | -0.51 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.445 |
r_dihedral_angle_4_deg | 16.035 |
r_dihedral_angle_3_deg | 11.471 |
r_dihedral_angle_1_deg | 6.078 |
r_scangle_it | 5.558 |
r_scbond_it | 3.66 |
r_mcangle_it | 2.436 |
r_mcbond_it | 1.523 |
r_angle_refined_deg | 1.511 |
r_angle_other_deg | 0.927 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3325 |
Nucleic Acid Atoms | |
Solvent Atoms | 612 |
Heterogen Atoms | 5 |
Software
Software | |
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Software Name | Purpose |
SHELX | phasing |
REFMAC | refinement |
XSCALE | data scaling |
PDB_EXTRACT | data extraction |
XDS | data reduction |
SHELXD | phasing |
autoSHARP | phasing |