› 6ngn

X-ray diffraction
1.9Å resolution

Structure of rat neuronal nitric oxide synthase heme domain in complex with (S)-6-(3-fluoro-5-(2-(pyrrolidin-2-yl)ethyl)phenethyl)-4-methylpyridin-2-amine

Released:
DOI: 10.2210/pdb6ngn/pdb
PDB entry 6ngn coloured by chain, front view.
PDB entry 6ngn coloured by chain, side view.
PDB entry 6ngn coloured by chain, top view.
Source organism: Rattus norvegicus
Primary publication:
Optimization of Blood-Brain Barrier Permeability with Potent and Selective Human Neuronal Nitric Oxide Synthase Inhibitors Having a 2-Aminopyridine Scaffold.
Do HT, Li H, Chreifi G, Poulos TL, Silverman RB
J Med Chem 62 2690-2707 (2019)
PMID: 30802056

Function and Biology Details

Reaction catalysed: 
(1a) 2 L-arginine + 2 NADPH + 2 O(2) = 2 N(omega)-hydroxy-L-arginine + 2 NADP(+) + 2 H(2)O
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-151520 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nitric oxide synthase 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 422 amino acids
Theoretical weight: 48.81 KDa
Source organism: Rattus norvegicus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P29476 (Residues: 297-718; Coverage: 30%)
Gene names: Bnos, Nos1
Sequence domains: Nitric oxide synthase, oxygenase domain
Structure domains:

Ligands and Environments


Cofactor: Ligand HEM 2 x HEM
4 bound ligands:
Ligand H4B 2 x H4B
Ligand KL4 2 x KL4
Ligand ACT 2 x ACT
Ligand ZN 1 x ZN
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P212121
Unit cell:
a: 52.212Å b: 111.859Å c: 165.019Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.202 0.2 0.241
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

8 citation in other articles

2-Aminopyridines with a shortened amino sidechain as potent, selective, and highly permeable human neuronal nitric oxide synthase inhibitors.
Vasu et al. (2022)
7 more