Crystal Structure of Ignicoccus islandicus malate dehydrogenase co-crystallized with 10 mM Tb-Xo4
X-RAY DIFFRACTION - SOLUTION SCATTERING
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 4BGU | |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | VAPOR DIFFUSION, SITTING DROP | | 293.15 | 0.1 M Hepes pH 7, 10% w/v PEG 6000. Tb-Xo4 was directly mixed with the protein solution at a final concentration of 10 mM prior to crystallization. |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.42 | 49.23 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 78.486 | α = 90 |
| b = 109.017 | β = 90 |
| c = 151.91 | γ = 90 |
| Symmetry |
|---|
| Space Group | P 2 21 21 |
|---|
Diffraction
| Diffraction Experiment |
|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol |
|---|
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | | 2018-06-07 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | 1.0332 | SOLEIL | PROXIMA 1 |
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 |
|---|
| 1 | 1.892 | 45.92 | 99.17 | 0.1146 | | | 0.04477 | 0.997 | | 12.92 | 7.4 | | 103746 | | | 30.96 |
| 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 | 1.892 | 1.96 | | | | | 0.4782 | 0.637 | | | 7.1 | |
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 | R-Free | R-Free Selection Details | Mean Isotropic B |
|---|
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 1.892 | 45.92 | | | | 103697 | 5161 | 99.2 | | 0.206 | 0.205 | 0.233 | RANDOM | 38.53 |
| 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] |
|---|
| -12.7375 | | | 6.5967 | | 6.1408 |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| t_other_torsion | 16.85 |
| t_omega_torsion | 2.9 |
| t_angle_deg | 1.05 |
| t_bond_d | 0.01 |
| t_dihedral_angle_d | |
| t_incorr_chiral_ct | |
| t_pseud_angle | |
| t_trig_c_planes | |
| t_gen_planes | |
| t_it | |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| t_other_torsion | 16.85 |
| t_omega_torsion | 2.9 |
| t_angle_deg | 1.05 |
| t_bond_d | 0.01 |
| t_dihedral_angle_d | |
| t_incorr_chiral_ct | |
| t_pseud_angle | |
| t_trig_c_planes | |
| t_gen_planes | |
| t_it | |
| t_nbd | |
| t_improper_torsion | |
| t_chiral_improper_torsion | |
| t_sum_occupancies | |
| t_utility_distance | |
| t_utility_angle | |
| t_utility_torsion | |
| t_ideal_dist_contact | |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 9236 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 308 |
| Heterogen Atoms | 81 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| BUSTER | refinement |
| XDS | data reduction |
| SCALA | data scaling |
| PHASER | phasing |
