Structure of human neuronal nitric oxide synthase R354A/G357D mutant heme domain in complex with (R)-6-(2,3-difluoro-5-(2-(1-methylpyrrolidin-2-yl)ethyl)phenethyl)-4-methylpyridin-2-amine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 5AD7 | PDB entry 5AD7 | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.2 | 277 | 8% PEG3350, 35 mM citric acid, 65 mM Bis-Tris propane, 10% glycerol, 5 mM TCEP | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.74 | 55.2 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 52.33 | α = 90 | 
| b = 121.76 | β = 90 | 
| c = 164.7 | γ = 90 | 
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 | 
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 | ADSC QUANTUM 315r | mirrors | 2017-11-04 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | ALS BEAMLINE 8.2.2 | 1.000 | ALS | 8.2.2 | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.99 | 83 | 99.6 | 0.253 | 0.253 | 0.086 | 0.999 | 6.9 | 9.2 | 72571 | -3 | ||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 1.99 | 2.06 | 93.3 | 2.707 | 2.707 | 1.351 | 0.373 | 0.6 | 4.9 | ||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | FOURIER SYNTHESIS | FREE R-VALUE | PDB entry 5AD7 | 1.993 | 82.35 | 0.01 | 72427 | 6733 | 99.49 | 0.1875 | 0.1855 | 0.18 | 0.2272 | 0.22 | random | ||||
| 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 | 18.508 | 
| f_angle_d | 0.977 | 
| f_chiral_restr | 0.051 | 
| f_bond_d | 0.007 | 
| f_plane_restr | 0.005 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 6699 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 613 | 
| Heterogen Atoms | 179 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| PHENIX | refinement | 
| MOSFLM | data reduction | 
| Aimless | data scaling | 
| REFMAC | phasing | 














