Structure of the Thioalkalivibrio nitratireducens cytochrome c nitrite reductase in complex with sulfite (modified Tyr-303)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3GM6 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 278 | Protein solution (2.5mcl): 10mg/ml TvNiR, 0.05M Tris hydrochloride (pH7.2). Reservoir solution (2.5mcl): 0.2M ammonium acetate, 0.1M tri-sodium citrate dihydrate, 30% v/v 2-methyl-2,4-pentanediol, 0.1M sodium sulfite (pH6.5), VAPOR DIFFUSION, HANGING DROP, temperature 278.0K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 4.36 | 71.54 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 195.69 | α = 90 |
| b = 195.69 | β = 90 |
| c = 195.69 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 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 | MAR CCD 165 mm | 2009-11-30 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X13 | 0.8123 | EMBL/DESY, HAMBURG | X13 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.8 | 19.8 | 96.6 | 0.066 | 15.1 | 3 | 228946 | 221170 | 28 | ||||||||||
| 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 | 1.8 | 1.85 | 73.1 | 0.39 | 3.1 | 17909 | |||||||||||||
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 | 3GM6 | 1.8 | 19.8 | 210080 | 11090 | 97.62 | 0.15134 | 0.15048 | 0.16 | 0.1675 | 0.17 | RANDOM | 25.163 | ||||
| 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 |
| r_dihedral_angle_2_deg | 36.669 |
| r_dihedral_angle_4_deg | 17.734 |
| r_dihedral_angle_3_deg | 13.065 |
| r_dihedral_angle_1_deg | 6.09 |
| r_scangle_it | 3.112 |
| r_scbond_it | 2.006 |
| r_angle_refined_deg | 1.47 |
| r_mcangle_it | 1.26 |
| r_mcbond_it | 0.688 |
| r_chiral_restr | 0.107 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 8232 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1140 |
| Heterogen Atoms | 742 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DNA | data collection |
| REFMAC | refinement |
| XDS | data reduction |
| XSCALE | data scaling |














