9q61

Structure of rat neuronal nitric oxide synthase R349A mutant heme domain bound with 6-((5-(2-(ethyl(methyl)amino)ethyl)-2,3-difluorophenxy)methyl)-4-methylphridin-2-amine

Method: X-RAY DIFFRACTION Dmax: 82.0 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Nitric oxide synthase, brain

Rattus norvegicus

UniProt P29476

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 297–718 Mutation:R349A HEM PROTOPORPHYRIN IX CONTAINING FE × 2 H4B 5,6,7,8-TETRAHYDROBIOPTERIN × 2 A1CN4 6-[(5-{2-[ethyl(methyl)amino]ethyl}-2,3-difluorophenoxy)methyl]-4-methylpyridin-2-amine × 2 ACT ACETATE ION × 2 ZN ZINC ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.8;277 K;20-24% PEG3350, 0.1 M MES, 0.14-0.20 M ammonium acetate, 10% ethylene glycol, 30 uM SDS, 5 mM GSH Resolution 2.13 Å R-free 0.273

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

348 other PDB entries and 351 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NOS1_RAT
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–422; UniProt 297–718

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 9q61

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9q61
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id9q61
Deposition date deposition_date2025-08-21
Structure title titleStructure of rat neuronal nitric oxide synthase R349A mutant heme domain bound with 6-((5-(2-(ethyl(methyl)amino)ethyl)-2,3-difluorophenxy)methyl)-4-methylphridin-2-amine
Keywords keywordsnitric oxide synthase inhibitor binding, OXIDOREDUCTASE-INHIBITOR complex; OXIDOREDUCTASE/INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.20
Radius of gyration Rg (electron density) rg_electron22.40
Forward intensity I(0) i075244800.00
Molecular weight molecular_weight45698.0 kDa
Excluded volume excluded_volume44340 ų
Envelope volume envelope_volume71510 ų
Hydration-shell volume shell_volume26363 ų
Envelope diameter envelope_diameter84.7
Shell Rg shell_rg29.84
Envelope Rg envelope_rg22.78
Shape Rg shape_rg22.39
Total Rg total_rg23.06
Total atoms total_atoms3455
Residues n_residues414
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax82.0
Rg (real space) rg_real23.14
Rg uncertainty (real space) rg_real_error0.55
I(0) (real space) i0_real7.5240e+07
I(0) uncertainty (real space) i0_real_error1.0060e+06
Rg (reciprocal space) rg_reciprocal23.15
I(0) (reciprocal space) i0_reciprocal75250000.0000
Solution quality estimate total_estimate0.8563
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary80.8
Skewness Skewness skewness0.321
Kurtosis Kurtosis kurtosis-0.183
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha13020000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.718; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.982; Smooth: 0.991

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)