Crystal structure of an inverting family GH156 exosialidase from uncultured bacterium pG7
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6 | 273 | 0.8 M sodium formate, 15% PEG 4000, 0.1 M sodium acetate |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.42 | 49.11 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 64.112 | α = 90 |
| b = 79.273 | β = 94.72 |
| c = 112.214 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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-F | 2018-05-05 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I04 | 0.9795 | Diamond | I04 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 64.67 | 100 | 0.198 | 0.219 | 0.094 | 0.985 | 5.8 | 5.4 | 75801 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 2.04 | 99.7 | 0.809 | 0.894 | 0.377 | 0.593 | 5.6 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | Unpublished SeMet derivative | 2 | 64.67 | 71915 | 3839 | 99.93 | 0.2363 | 0.2337 | 0.24 | 0.2856 | 0.29 | RANDOM | 23.225 | ||||
| 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] | |
| 0.38 | -0.89 | -0.09 | -0.14 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 29.417 |
| r_dihedral_angle_4_deg | 20.078 |
| r_dihedral_angle_3_deg | 14.723 |
| r_dihedral_angle_1_deg | 7.756 |
| r_angle_refined_deg | 1.855 |
| r_angle_other_deg | 1.312 |
| r_chiral_restr | 0.082 |
| r_bond_refined_d | 0.012 |
| r_gen_planes_refined | 0.01 |
| r_bond_other_d | 0.001 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 8020 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 420 |
| Heterogen Atoms | 106 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Aimless | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| Aimless | data scaling |
| PHASER | phasing |
| DIALS | data reduction |














