Crystal structure of a thermostable glycoside hydrolase family 43 {beta}-1,4-xylosidase from Geobacillus thermoleovorans IT-08 in complex with D-xylose
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1YIF | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7 | 283 | 0.1M HEPES (N-(2-hydroxyethyl)piperazine-N-(2-ethanesulfonic acid)) buffer, pH 7.0, 5% (w/v) PEG 6000 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.33 | 47.17 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 62.453 | α = 90 |
| b = 62.453 | β = 90 |
| c = 276.672 | 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 | MARMOSAIC 225 mm CCD | 2009-10-27 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X11 | 0.9300 | EMBL/DESY, HAMBURG | X11 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 1.825 | 46.354 | 99.1 | 0.086 | 0.102 | 0.054 | 8.6 | 3.4 | 44217 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 1.9 | 2 | 96.7 | 0.297 | 0.297 | 0.361 | 0.199 | 1.7 | 3.1 | ||||||||||
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 | 1yif | 1.9 | 46.35 | 40994 | 2186 | 96.82 | 0.2183 | 0.2161 | 0.22 | 0.2591 | 0.26 | RANDOM | 19.91 | ||||
| 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] | |
| 0.19 | 0.19 | -0.39 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.493 |
| r_dihedral_angle_4_deg | 15.969 |
| r_dihedral_angle_3_deg | 13.909 |
| r_dihedral_angle_1_deg | 7.16 |
| r_angle_refined_deg | 1.448 |
| r_chiral_restr | 0.099 |
| r_bond_refined_d | 0.011 |
| r_gen_planes_refined | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4053 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 531 |
| Heterogen Atoms | 11 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| COMBAT | data reduction |
| PHASER | phasing |














