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Structure of neuronal nitric oxide synthase heme domain in complex with N-(3-(((3-FLUOROPHENETHYL)AMINO)METHYL)PHENYL)THIOPHENE-2- carboximidamide

Analyse Structure of 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
4KCN
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
MTL, HEM, H4B, 5H3, ZN
Pockets
12 · 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)protein41140% helix, 15% strandP29476

Ligands and binding sites

  • MTL · D-mannitol · ligand · 3 copies · chains A, B
  • HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, B
  • H4B · 5,6,7,8-tetrahydrobiopterin · ligand · 2 copies · chains A, B
  • 5H3 · N-[3-({[2-(3-fluorophenyl)ethyl]amino}methyl)phenyl]thiophene-2-carboximidamide · ligand · 2 copies · chains A, B
  • ZN · Zinc ion · metal · chains A, B
  • ACT · Acetate ion · additive · 2 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110330.850.8696HEM, H4B, 5H3, ACT, MTL, EDO
211900.830.8488HEM, H4B, ACT, MTL, 5H3
3950.410.7716empty
4840.380.7718empty
5740.370.7714empty

Interfaces

1 interface between chains.

  • A–B · 2754 Ų buried · 43 hydrogen bonds · protein-protein

Compared structures

  • 4KCN · Structure of 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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