Structure of human endothelial nitric oxide synthase heme domain in complex with 4-(difluoromethyl)-6-(5-(2-(dimethylamino)ethyl)-2,3-difluorophenethyl)pyridin-2-amine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 5UO8 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 277 | 10-12% PEG3350, 0.1M BIS-TRIS 0.2-0.3M MG ACETATE, 0.1M GdCl3 10% glycerol, 5 mM TCEP | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.69 | 54.3 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 59.869 | α = 90 | 
| b = 153.859 | β = 90.65 | 
| c = 108.933 | 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 | DECTRIS PILATUS 6M | mirrors | 2020-11-02 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.9795 | SSRL | BL12-2 | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | 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 | 2 | 39.18 | 99 | 0.142 | 0.153 | 0.057 | 0.998 | 9.6 | 7 | 131358 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 2 | 2.03 | 98 | 3.643 | 3.956 | 1.521 | 0.329 | 6.5 | |||||||||||
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 | 5UO8 | 2 | 38.948 | 0.99 | 126921 | 12713 | 95.49 | 0.205 | 0.2026 | 0.2 | 0.2515 | 0.25 | 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 | 15.326 | 
| f_angle_d | 0.977 | 
| f_chiral_restr | 0.054 | 
| f_bond_d | 0.008 | 
| f_plane_restr | 0.006 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 12848 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 691 | 
| Heterogen Atoms | 514 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| Aimless | data scaling | 
| PHENIX | refinement | 
| PDB_EXTRACT | data extraction | 
| XDS | data reduction | 
| REFMAC | phasing | 














