Joint X-ray and neutron structure of Streptomyces rubiginosus D-xylose isomerase in complex with two Cd2+ ions and cyclic beta-L-arabinose
NEUTRON DIFFRACTION - X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | batch | 7.7 | 291 | 0.1M HEPES, pH 7.7, 30% ammonium sulfate, batch, temperature 291K |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.78 | 55.83 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 93.93 | α = 90 |
| b = 99.693 | β = 90 |
| c = 102.973 | 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 | 291 | IMAGE PLATE | RIGAKU RAXIS IV++ | OSMIC VARIMAX | 2011-10-10 | M | SINGLE WAVELENGTH |
| 2 | 1 | neutron | 291 | AREA DETECTOR | 3He position sensitive detector | | 2011-10-20 | L | LAUE |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54 | | |
| 2 | NUCLEAR REACTOR | LANSCE BEAMLINE PCS | 0.7-6.0 | LANSCE | PCS |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (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 |
|---|
| 2 | 2 | 39.28 | 87.7 | 0.208 | | | | | | 29.3 | | | 28786 | 2.5 | 1.4 | |
| 1 | 1.6 | 40 | 99.9 | 0.055 | | | | | | 29 | 7.1 | | 63773 | 2.5 | | |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1.6 | 1.66 | | 0.379 | | | | | | 5.3 | 6.8 | |
| 2 | 2.11 | | 0.37 | | | | | | 1.6 | 1.9 | |
Refinement
| Statistics |
|---|
| Diffraction ID | Structure Solution 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 (All) | 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 | 2 | 20 | | 2.5 | 28786 | 25245 | 1254 | | 0.231 | 0.231 | 0.231 | 0.15 | 0.247 | 0.17 | random | 30.06 |
| 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] |
|---|
| | | | | |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| x_torsion_deg | 18.2 |
| x_angle_deg | 1 |
| x_torsion_impr_deg | 0.89 |
| x_bond_d | 0.007 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 3054 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 312 |
| Heterogen Atoms | 12 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| nCNS | refinement |
| d*TREK | data scaling |
| HKL-3000 | data reduction |
| RETREAT | data reduction |
| HKL-3000 | data scaling |
| RETREAT | data scaling |
| CNS | phasing |