SMTL ID : 6pou.1 (2 other biounits)

Structure of human endothelial nitric oxide synthase heme domain in complex with 7-(4-(2-Aminoethyl)phenyl)-4-methylquinolin-2-amine

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.19 Å

Oligo State

homo-dimer

Ligands

2 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.1: 17 residues within 4Å: Chain A: W.138, A.141, R.143, C.144, V.145, S.186, F.313, S.314, G.315, W.316, M.318, E.321, R.325, W.407, F.433, Y.435 Ligands: M16.2 16 PLIP interactions: 16 interactions with chain A, Hydrophobic interactions: A:W.138, A:W.138, A:W.138, A:A.141, A:F.313, A:F.313, A:W.316, A:E.321, A:F.433, A:F.433, A:F.433 Hydrogen bonds: A:Y.435 Salt bridges: A:R.143, A:R.325 pi-Stacking: A:W.138 Metal complexes: A:C.144 HEM.11: 18 residues within 4Å: Chain B: W.138, A.141, R.143, C.144, V.145, G.146, L.153, S.186, F.313, S.314, W.316, M.318, E.321, R.325, W.407, F.433, Y.435 Ligands: M16.12 19 PLIP interactions: 19 interactions with chain B, Hydrophobic interactions: B:W.138, B:W.138, B:W.138, B:A.141, B:R.143, B:V.145, B:L.153, B:F.313, B:F.313, B:F.313, B:W.316, B:W.316, B:E.321, B:F.433 Hydrogen bonds: B:Y.435 Salt bridges: B:R.143, B:R.325 pi-Stacking: B:W.138 Metal complexes: B:C.144

4 x M16: 7-[4-(2-aminoethyl)phenyl]-4-methylquinolin-2-amine(Non-covalent)

M16.2: 12 residues within 4Å: Chain A: P.294, V.296, F.313, W.316, Y.317, M.318, E.321, R.325, W.407, Y.435 Ligands: HEM.1, M16.3 7 PLIP interactions: 7 interactions with chain A Hydrophobic interactions: A:P.294, A:V.296, A:W.407 Hydrogen bonds: A:M.318, A:E.321, A:Y.435, A:Y.435 M16.3: 9 residues within 4Å: Chain A: S.62, V.64, A.406, W.407 Chain B: W.34, W.405, F.420, H.421 Ligands: M16.2 7 PLIP interactions: 4 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:W.34, B:W.34, B:F.420, A:V.64, A:W.407 pi-Stacking: B:H.421 Hydrogen bonds: A:A.406 M16.12: 11 residues within 4Å: Chain B: P.294, V.296, F.313, G.315, W.316, Y.317, M.318, E.321, R.325, Y.435 Ligands: HEM.11 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:P.294, B:V.296, B:F.313 Hydrogen bonds: B:M.318, B:E.321, B:Y.435 M16.13: 9 residues within 4Å: Chain A: W.34, W.405, F.420, H.421 Chain B: S.62, V.64, H.331, A.406, W.407 7 PLIP interactions: 3 interactions with chain A, 4 interactions with chain B Hydrophobic interactions: A:W.34, A:F.420, B:V.64, B:W.407 pi-Stacking: A:H.421, B:W.407 Hydrogen bonds: B:A.406

7 x BTB: 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL(Non-covalent)

BTB.4: 5 residues within 4Å: Chain A: W.282, V.341, C.342, D.344 Ligands: GD.7 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:D.344 BTB.5: 3 residues within 4Å: Chain A: E.337, T.347, R.348 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.337 BTB.9: 3 residues within 4Å: Chain A: E.116, Q.124 Ligands: GD.8 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.124 Salt bridges: A:E.116 BTB.14: 3 residues within 4Å: Chain B: T.279, E.281 Ligands: GD.18 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:E.281 Water bridges: B:T.279, B:T.279 Salt bridges: B:E.281 BTB.15: 2 residues within 4Å: Chain B: E.258 Ligands: GD.19 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:E.258 BTB.16: 1 residues within 4Å: Chain B: E.337 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:E.337 BTB.17: 1 residues within 4Å: Chain B: E.114 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:R.88 Water bridges: B:E.114, B:E.114 Salt bridges: B:E.114

3 x ZN: ZINC ION(Non-covalent)

ZN.6: 4 residues within 4Å: Chain A: C.54, C.59 Chain B: C.54, C.59 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:C.54, A:C.59, B:C.54, B:C.59 ZN.10: 3 residues within 4Å: Chain A: R.325, D.329 Chain B: H.421 4 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:H.421, A:D.329, H2O.6, H2O.12 ZN.20: 2 residues within 4Å: Chain A: H.421 Chain B: D.329 4 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: A:H.421, B:D.329, H2O.6, H2O.11

4 x GD: GADOLINIUM ATOM(Non-functional Binders)(Non-covalent)

GD.7: 1 residues within 4Å: Ligands: BTB.4 No protein-ligand interaction detected (PLIP) GD.8: 3 residues within 4Å: Chain A: E.116, Q.124 Ligands: BTB.9 1 PLIP interactions: 1 interactions with chain A Metal complexes: A:E.116 GD.18: 3 residues within 4Å: Chain B: T.279, E.281 Ligands: BTB.14 3 PLIP interactions: 2 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:T.279, B:E.281, H2O.9 GD.19: 1 residues within 4Å: Ligands: BTB.15 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Cinelli, M.A. et al., First Contact: 7-Phenyl-2-Aminoquinolines, Potent and Selective Neuronal Nitric Oxide Synthase Inhibitors That Target an Isoform-Specific Aspartate. J.Med.Chem. (2020)

Release Date

2020-04-29

Peptides

Nitric oxide synthase, endothelial: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase, endothelial

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