Crystal structure of NADPH-dependent glyoxylate/hydroxypyruvate reductase SMc04462 (SmGhrB) from Sinorhizobium meliloti in complex with NADP and 2-Keto-D-gluconic acid
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 5J23 | PDB entry 5J23 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 5.9 | 289 | 0.2 uL 13 mg/mL protein in 20 mM HEPES, pH 7.5, 150 mM sodium chloride, 10% glycerol, 0.1% sodium azide, 0.5 mM TCEP, 5 mM NADP, 100 mM 2-keto-D-gluconic acid hemicalcium salt + 0.2 uL TOP96 condition #24 (0.2 M magnesium formate, pH 5.9, 20% w/v PEG3350), equilibrated against 1.5 M sodium chloride in a 96-well, 3-drop crystallization plate (Swissci), incubated with 1/20 v/v 1 mg/mL rTEV at 289 K for 3 hours prior to crystallization |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.93 | 58.05 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 175.902 | α = 90 |
| b = 175.902 | β = 90 |
| c = 135.336 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | H 3 |
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 | Beryllium Lenses | 2016-11-11 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97872 | APS | 21-ID-F |
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) | 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 | 1.75 | 50 | 99.6 | 0.113 | 0.113 | 0.129 | 0.06 | 8.6 | 4.9 | 156897 | -3 | 28.1 | |||||||
| 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) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
| 1 | 1.75 | 1.78 | 100 | 0.878 | 0.878 | 0.987 | 0.447 | 0.607 | 1.8 | 4.9 | 7876 | ||||||||
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 | PDB entry 5J23 | 1.75 | 45.11 | 148739 | 7836 | 99.42 | 0.1451 | 0.1439 | 0.15 | 0.1666 | 0.17 | RANDOM | 32.918 | ||||
| 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] | |
| 1.05 | 1.05 | -2.09 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.506 |
| r_dihedral_angle_4_deg | 20.039 |
| r_dihedral_angle_3_deg | 11.1 |
| r_dihedral_angle_1_deg | 5.786 |
| r_angle_refined_deg | 1.502 |
| r_angle_other_deg | 0.999 |
| r_chiral_restr | 0.085 |
| r_bond_refined_d | 0.011 |
| r_gen_planes_refined | 0.007 |
| r_bond_other_d | 0.003 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 9468 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1350 |
| Heterogen Atoms | 301 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MD2 | data collection |
| HKL-3000 | data reduction |
| HKL-3000 | data scaling |
| MOLREP | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| DENZO | data reduction |
| SCALEPACK | data scaling |














