Structure of an inactive E404Q variant of the catalytic domain of human endo-alpha-mannosidase MANEA in complex with tetrasaccharide N-glycan fragment and hexatungstotellurate(VI) TEW
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 6ZFA | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 292 | 100 mM HEPES pH 7.5 - 8.1, 200 mM MgCl2, 25-27.5% v/v PEG 400, 1 mM TEW Protein in 25 mM HEPES pH 7.0, 200 mM NaCl buffer at 10 mg/ml. | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.71 | 54.7 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 129.414 | α = 90 |
| b = 129.414 | β = 90 |
| c = 50.201 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 62 |
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 EIGER2 XE 16M | 2019-03-03 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I04 | 0.95004 | 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 | 1.957 | 112.076 | 50.1 | 0.093 | 0.098 | 0.029 | 0.999 | 15.7 | 11.7 | 17490 | |||||||||
| 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 | 1.957 | 2.155 | 11.9 | 1.448 | 1.522 | 0.463 | 0.658 | 1.6 | 10.5 | ||||||||||
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 (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 6ZFA | 1.957 | 64.707 | 17488 | 844 | 50.122 | 0.187 | 0.1838 | 0.19 | 0.2524 | 0.26 | 40.367 | |||||
| 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] | |
| -0.063 | -0.032 | -0.063 | 0.205 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.769 |
| r_dihedral_angle_3_deg | 15.956 |
| r_dihedral_angle_4_deg | 13.486 |
| r_dihedral_angle_1_deg | 7.275 |
| r_lrange_it | 7.177 |
| r_lrange_other | 7.166 |
| r_scangle_it | 5.298 |
| r_scangle_other | 5.297 |
| r_mcangle_other | 4.767 |
| r_mcangle_it | 4.758 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2992 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 133 |
| Heterogen Atoms | 109 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| Aimless | data scaling |
| STARANISO | data processing |
| REFMAC | phasing |
| XDS | data reduction |














