SMTL ID : 6ngn.1

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

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 19 residues within 4Å: Chain A: W.113, A.116, R.118, C.119, V.120, G.121, M.274, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: H4B.2, KL4.3, ACT.4 20 PLIP interactions: 20 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:A.116, A:R.118, A:V.120, A:F.288, A:F.288, A:F.288, A:W.291, A:E.296, A:W.382, A:F.408, A:F.408, A:F.408 Water bridges: A:E.296, A:R.300, A:R.300 Salt bridges: A:R.118 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEM.5: 17 residues within 4Å: Chain B: W.113, A.116, R.118, C.119, V.120, G.121, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: H4B.6, KL4.7 20 PLIP interactions: 20 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:A.116, B:V.120, B:F.288, B:F.288, B:F.288, B:W.291, B:E.296, B:W.382, B:W.382, B:F.408, B:F.408 Hydrogen bonds: B:Y.410 Water bridges: B:E.296, B:R.300, B:R.300 Salt bridges: B:R.118 pi-Stacking: B:W.113 Metal complexes: B:C.119

2 x H4B: 5,6,7,8-TETRAHYDROBIOPTERIN(Non-covalent)

H4B.2: 12 residues within 4Å: Chain A: S.38, M.40, R.300, V.381, W.382 Chain B: W.380, F.395, H.396, Q.397, E.398 Ligands: HEM.1, KL4.3 6 PLIP interactions: 1 interactions with chain B, 5 interactions with chain A Hydrophobic interactions: B:E.398 Hydrogen bonds: A:R.300, A:V.381, A:W.382 pi-Stacking: A:W.382, A:W.382 H4B.6: 11 residues within 4Å: Chain A: W.380, F.395, H.396, Q.397, E.398 Chain B: S.38, M.40, R.300, V.381, W.382 Ligands: HEM.5 8 PLIP interactions: 7 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:R.300, B:R.300, B:V.381, B:W.382 pi-Stacking: B:W.382, B:W.382 pi-Cation interactions: B:W.382 Hydrophobic interactions: A:E.398

2 x KL4: 6-[2-(3-fluoro-5-{2-[(2S)-pyrrolidin-2-yl]ethyl}phenyl)ethyl]-4-methylpyridin-2-amine(Non-covalent)

KL4.3: 13 residues within 4Å: Chain A: P.269, V.271, M.274, F.288, S.289, G.290, W.291, Y.292, M.293, E.296, Y.410 Ligands: HEM.1, H4B.2 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:P.269, A:V.271, A:F.288, A:Y.410 Hydrogen bonds: A:M.293, A:E.296 KL4.7: 11 residues within 4Å: Chain B: P.269, V.271, M.274, F.288, S.289, G.290, W.291, Y.292, E.296, Y.410 Ligands: HEM.5 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:P.269, B:V.271, B:F.288 Hydrogen bonds: B:M.293, B:E.296

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.4: 6 residues within 4Å: Chain A: G.121, I.123, W.291, V.353, S.361 Ligands: HEM.1 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:W.291 Hydrogen bonds: A:S.361 ACT.8: 3 residues within 4Å: Chain B: I.123, W.291, V.353 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:I.123

1 x ZN: ZINC ION(Non-covalent)

ZN.9: 4 residues within 4Å: Chain A: C.30, C.35 Chain B: C.30, C.35 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:C.30, B:C.35, A:C.30, A:C.35

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Do, H.T. et al., Optimization of Blood-Brain Barrier Permeability with Potent and Selective Human Neuronal Nitric Oxide Synthase Inhibitors Having a 2-Aminopyridine Scaffold. J. Med. Chem. (2019)

Release Date

2019-03-13

Peptides

Nitric oxide synthase, brain: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase, brain

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