Crystal structure of MOA, a lectin from the mushroom Marasmius oreades in complex with the trisaccharide Gal(1,3)Gal(1,4)GlcNAc
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 293 | 0.1M Hepes, 2.4 M ammonium formate, 0.6 mg/ml N-ethylmaleimide, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 5.505585 | 77.65905 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 104.64 | α = 90 |
| b = 104.64 | β = 90 |
| c = 112.66 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 32 2 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 | CCD | ADSC QUANTUM 315 | 2006-04-19 | M | MAD | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 0.97905, 0.93952 | ESRF | ID14-4 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 2.2 | 70 | 100 | 0.1 | 0.11 | 18 | 11 | 36670 | 2 | 2 | 43 | ||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 2.2 | 2.3 | 100 | 0.81 | 0.39 | 2.9 | 11 | 5263 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | 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 | MAD | THROUGHOUT | 2.41 | 19.8 | 2 | 2 | 26661 | 26661 | 1413 | 99.59 | 0.19152 | 0.19048 | 0.19 | 0.21126 | 0.21 | RANDOM | 35.82 | ||
| 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] | |
| 0.22 | 0.11 | 0.22 | -0.33 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 40.02 |
| r_dihedral_angle_4_deg | 19.694 |
| r_dihedral_angle_3_deg | 14.773 |
| r_dihedral_angle_1_deg | 8.613 |
| r_scangle_it | 3.639 |
| r_scbond_it | 2.382 |
| r_angle_refined_deg | 1.522 |
| r_mcangle_it | 1.418 |
| r_mcbond_it | 0.792 |
| r_nbtor_refined | 0.312 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2277 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 170 |
| Heterogen Atoms | 74 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| ProDC | data collection |
| SHELXS | phasing |














