4C4D
Covalent glycosyl-enzyme intermediate of Hypocrea jecorina Cel7a E217Q mutant trapped using DNP-2-deoxy-2-fluoro-cellotrioside
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 6 | PROTEIN FIRST INCUBATED WITH 80 UM 2,4-DINITROPHENYL-2-DEOXY-2-FLUORO-BETA-CELLOTRIOSIDE (DNP-2F-G3)4 IN 10 MM SODIUM MES, PH 6.0. ALIQUOTS WERE TAKEN AT REGULAR TIME INTERVALS AND CONCENTRATED FOR CRYSTALLISATION IN THE PRESENCE OF 1 MM FRESH DNP-2F-G3 ADDED TO THE CRYSTALLISATION DROPS. CRYSTALLISATION CONDITION: 0.1 M MES (PH 6.0), 20% MONOMETHYL ETHER PEG 5000, 0.01 M COCL2, 12% GLYCEROL. | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.96 | 37.2 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 82.93 | α = 90 |
| b = 83.29 | β = 90 |
| c = 110.76 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | I 2 2 2 |
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 CCD | 1999-02-06 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | ESRF | ID14-4 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.32 | 66.6 | 84175 | ||||||||||||||||
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 7CEL | 1.32 | 66.57 | 84175 | 4418 | 98.47 | 0.16774 | 0.16675 | 0.18673 | RANDOM | 11.508 | ||||||
| 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] | |
| -0.69 | 0.7 | -0.01 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 32.899 |
| r_dihedral_angle_4_deg | 16.622 |
| r_dihedral_angle_3_deg | 11.315 |
| r_dihedral_angle_1_deg | 6.165 |
| r_angle_refined_deg | 1.271 |
| r_chiral_restr | 0.086 |
| r_bond_refined_d | 0.007 |
| r_gen_planes_refined | 0.006 |
| r_bond_other_d | |
| r_angle_other_deg | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3224 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 618 |
| Heterogen Atoms | 127 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
