7JRF
CO-CO-BOUND NITROGENASE MOFE-PROTEIN FROM A. VINELANDII
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3U7Q | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 293 | Peg 4000, sodium chloride, imidazole / malate, glycerol, spermine |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.24 | 45.04 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 77.052 | α = 90 |
| b = 129.974 | β = 109.11 |
| c = 107.223 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 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 | PIXEL | PSI PILATUS 6M | 2014-09-01 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.9998 | SSRL | BL12-2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 1.33 | 39.63 | 98.4 | 0.085 | 0.041 | 0.998 | 10.4 | 5.1 | 447443 | 14 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 1.33 | 1.4 | 98.1 | 0.883 | 0.434 | 0.747 | 1.8 | 5 | |||||||||||
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3U7Q | 1.33 | 39.63 | 425029 | 22350 | 98.3 | 0.1177 | 0.116 | 0.15 | RANDOM | 14.493 | ||||||
| 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] | |
| -0.28 | 0.02 | 1.16 | -0.72 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.515 |
| r_dihedral_angle_4_deg | 21.379 |
| r_dihedral_angle_3_deg | 12.343 |
| r_dihedral_angle_1_deg | 6.617 |
| r_rigid_bond_restr | 3.534 |
| r_angle_refined_deg | 1.939 |
| r_angle_other_deg | 1.613 |
| r_chiral_restr | 0.126 |
| r_bond_refined_d | 0.016 |
| r_gen_planes_refined | 0.013 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 15859 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 2026 |
| Heterogen Atoms | 146 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |
