Structure of the Nitrogenase MoFe Protein from Clostridium pasteurianum Pressurized with Xenon
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 297 | PEG 3350, lithium citrate, sodium dithionite | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.33 | 47.19 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 67.309 | α = 73.47 |
| b = 73.446 | β = 87.56 |
| c = 108.658 | γ = 83.98 |
| Symmetry | |
|---|---|
| Space Group | P 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 | DECTRIS PILATUS 6M | 2013-08-02 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.9537 | SSRL | BL12-2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.9 | 39.75 | 96.7 | 16 | 3.9 | 137866 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | THROUGHOUT | 1.9 | 39.75 | 131611 | 6918 | 88.59 | 0.18215 | 0.17943 | 0.1918 | 0.23427 | 0.2455 | RANDOM | 30.811 | ||||||
| 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 | 0.35 | -0.38 | 2.88 | 0.48 | -2.03 | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.028 |
| r_dihedral_angle_4_deg | 18.768 |
| r_dihedral_angle_3_deg | 14.124 |
| r_long_range_B_refined | 6.797 |
| r_long_range_B_other | 6.69 |
| r_dihedral_angle_1_deg | 6.063 |
| r_scangle_other | 4.835 |
| r_mcangle_it | 4.426 |
| r_mcangle_other | 4.426 |
| r_scbond_it | 3.522 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 15106 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1474 |
| Heterogen Atoms | 118 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
