Neutron and X-ray joint refined structure of a copper-containing nitrite reductase (C135A mutant) in complex with nitrite
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4YSO | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 4.5 | 293 | 0.1 M acetate buffer pH 4.5, 5.5% (w/v) PEG 4000, and 75 mM CuSO4 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.03 | 59.44 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 115.06 | α = 90 |
| b = 115.06 | β = 90 |
| c = 84.483 | 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 | neutron | 100 | DIFFRACTOMETER | iBIX | 2020-01-28 | L | LAUE | ||||||
| 2 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS3 S 2M | 2020-02-18 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SPALLATION SOURCE | J-PARC MLF BEAMLINE BL-03 | 2.15-4.89 | JPARC MLF | BL-03 |
| 2 | SYNCHROTRON | PHOTON FACTORY BEAMLINE AR-NW12A | 0.8 | Photon Factory | AR-NW12A |
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 | 1.7 | 20 | 94.6 | 0.247 | 0.096 | 0.973 | 8.8 | 7.3 | 43445 | 6.43 | |||||||||
| 2 | 1 | 42.92 | 100 | 0.076 | 0.037 | 0.996 | 13.3 | 5.1 | 225316 | 6.43 | |||||||||
| 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 | 1.7 | 1.79 | 0.565 | 0.243 | 0.778 | 3 | 5.8 | ||||||||||||
| 2 | 1 | 1.02 | 0.33 | 0.162 | 0.94 | 4.6 | 5.1 | ||||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 1.7 | 13.2 | 43442 | 2003 | 94.84 | 0.1564 | 0.1556 | 0.1718 | ||||||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 1.3 | 28.16 | 102513 | 99.92 | 0.1144 | 0.1145 | 0.1316 | 0.1315 | ||||||||||
| 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 |
| f_dihedral_angle_d | 16.335 |
| f_angle_d | 1.134 |
| f_chiral_restr | 0.088 |
| f_bond_d | 0.02 |
| f_plane_restr | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2328 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 336 |
| Heterogen Atoms | 22 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| STARGazer | data reduction |
| autoXDS | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |














