Crystal structure of Escherichia coli protein YodA in complex with Ni - artifact of purification.
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1OEJ | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 289 | 0.3 ul of 9.6 mg/ml protein in 50mM Tris pH 7.9, 300 mM NaCl and 0.5mM TCEP were mixed with 0.3 ul of the SaltRx condition #65 (2.5 M Ammonium sulfate, 0.1 M BIS-TRIS propane pH 7.0) and equilibrated against 1.5 M NaCl in MRC 2 drops 96 Well Crystallization Plate (Swissci) |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.34 | 47.52 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 76.583 | α = 90 |
| b = 76.583 | β = 90 |
| c = 61.944 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 2 1 |
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 300 mm CCD | 2013-02-08 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-G | 0.978 | APS | 21-ID-G |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.95 | 50 | 99.9 | 0.08 | 0.08 | 9 | 7.3 | 15647 | 15635 | -3 | 28.4 | ||||||||
| 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 | 1.95 | 1.98 | 100 | 0.767 | 2.41 | 7.4 | 750 | ||||||||||||
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 | 1OEJ | 1.951 | 50 | 15616 | 782 | 99.94 | 0.1689 | 0.1666 | 0.17 | 0.2154 | 0.21 | RANDOM | 36.632 | ||||
| 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] | |
| 0.2 | 0.1 | 0.2 | -0.64 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 30.206 |
| r_dihedral_angle_4_deg | 15.162 |
| r_dihedral_angle_3_deg | 14.378 |
| r_dihedral_angle_1_deg | 6.492 |
| r_mcangle_it | 2.02 |
| r_angle_refined_deg | 1.5 |
| r_mcbond_other | 1.417 |
| r_mcbond_it | 1.416 |
| r_angle_other_deg | 0.772 |
| r_chiral_restr | 0.085 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1546 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 137 |
| Heterogen Atoms | 31 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| HKL-3000 | data collection |
| HKL-3000 | data reduction |
| HKL-3000 | data scaling |
| SHELXDE | phasing |
| MLPHARE | phasing |
| DM | phasing |
| Coot | model building |
| PDB_EXTRACT | data extraction |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |














