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MolNFT v1 · #107665 · protein

Structure of rat neuronal nitric oxide synthase heme domain in complex with N1-(5-(2-(6-amino-4-methylpyridin-2-yl) ETHYL)PYRIDIN-3-yl)-N1,N2-dimethylethane-1,2-diamine

4UH1 · Nitric oxide synthase, brain: “Structure of rat neuronal nitric oxide synthase heme domain in complex with…”. X-ray diffraction, 4 ligands (HEM, H4B, EXI), 13 pockets (best druggability 0.85). MolNFT v1 #107665 on GenesisL1: 3D…

PDB
4UH1
Type
protein
Length
818 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, EXI, ZN
Pockets
13 · best druggability 0.85

Structure

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

ChainMoleculeTypeResiduesSecondary structureUniProt
ANitric oxide synthase, brain (EC 1.14.13.39)protein40741% helix, 15% strandP29476
BNitric oxide synthase, brain (EC 1.14.13.39)protein41141% 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
  • EXI · N1-(5-(2-(6-Amino-4-methylpyridin-2-yl)ethyl)pyridin-3-yl)-N1,N2-dimethylethane-1,2-diamine · 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

13 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110120.850.8683HEM, H4B, EXI, ACT
211730.840.8591HEM, H4B, EXI, ACT
3530.690.9722empty
4760.400.7915empty
5830.370.7614empty

Interfaces

1 interface between chains.

  • A–B · 2721 Ų buried · 43 hydrogen bonds · protein-protein

Compared structures

  • 4UH1 · 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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