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Structure of rat neuronal nitric oxide synthase heme domain in complex with 6-(5-(2-((2S,4R)-4-ethoxy-1-methylpyrrolidin-2-YL)ETHYL)-2,3- difluorophenethyl)-4-methylpyridin-2-amine

Analyse Structure of rat neuronal nitric oxide synthase heme domain in complex with… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6NHE
Type
protein
Length
831 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Nitric oxide synthase, brain
EC
1.14.13.39
UniProt
P29476
Ligands
HEM, H4B, KNS, ZN
Pockets
11 · best druggability 0.84

Structure

x-ray diffraction · 2 distinct chains · 41% helix, 15% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ANitric oxide synthase, brain (EC 1.14.13.39)protein41541% helix, 15% strandP29476
BNitric oxide synthase, brain (EC 1.14.13.39)protein41641% helix, 15% strandP29476

Ligands and binding sites

  • HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, B
  • H4B · 5,6,7,8-tetrahydrobiopterin · ligand · 2 copies · chains A, B
  • KNS · 6-[2-(5-{2-[(2S,4R)-4-ethoxy-1-methylpyrrolidin-2-yl]ethyl}-2,3-difluorophenyl)ethyl]-4-methylpyridin-2-amine · ligand · 2 copies · chains A, B
  • ZN · Zinc ion · metal · chains A, B
  • ACT · Acetate ion · additive · 2 copies · chains A, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

11 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111450.840.85101HEM, H4B, KNS, ACT
210780.840.8489HEM, H4B, KNS, ACT
3930.470.8115empty
4520.390.8114empty
51060.380.7514empty

Interfaces

1 interface between chains.

  • A–B · 2730 Ų buried · 40 hydrogen bonds · protein-protein

Compared structures

  • 6NHE · Structure of rat neuronal nitric oxide synthase heme domain in complex with… · the same entry in another collection · chain A against A, TM-score 1.00

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