Crystal structure of barley exohydrolaseI W434H in complex with 4'-nitrophenyl thiolaminaribioside
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3WLI | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | 1.7 M ammonium sulfate, 75 mM HEPES-NaOH buffer, pH 7, containing 7.5 mM sodium acetate and 1.2% (w/v) PEG 400 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.44 | 64.29 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 100.393 | α = 90 |
| b = 100.393 | β = 90 |
| c = 180.036 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 43 21 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 QUANTUM 210r | COLLIMATING MIRROR | 2012-11-22 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | 0.9537 | Australian Synchrotron | MX1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1.98 | 87.71 | 99.8 | 0.13 | 31.6 | 29 | 61724 | ||||||||||||
| 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 | 1.98 | 2.03 | 0.8 | ||||||||||||||||
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 | 3WLI | 1.98 | 45.87 | 61724 | 3290 | 99.8 | 0.14335 | 0.14187 | 0.16 | 0.1708 | 0.18 | RANDOM | 25.732 | ||||
| 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] | |
| 0.36 | 0.36 | -0.73 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 39.716 |
| r_dihedral_angle_4_deg | 18.019 |
| r_dihedral_angle_3_deg | 14.173 |
| r_dihedral_angle_1_deg | 8.551 |
| r_angle_refined_deg | 2.158 |
| r_angle_other_deg | 1.605 |
| r_chiral_restr | 0.131 |
| r_bond_refined_d | 0.02 |
| r_gen_planes_refined | 0.01 |
| r_bond_other_d | 0.002 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4567 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 467 |
| Heterogen Atoms | 248 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| Aimless | data scaling |
| MOLREP | phasing |
