SMTL ID : 9q4r.1

Structure of rat neuronal nitric oxide synthase R349A mutant heme domain bound with 6-((5-(2-(diethylamino)ethyl)-2,3-difluorophenxy)methyl)-4-methylpyridin-2-amine

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.93 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 17 residues within 4Å: Chain A: H.45, W.113, R.118, C.119, V.120, S.161, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: H4B.2, 01.4 17 PLIP interactions: 17 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:W.113, A:R.118, A:F.288, A:F.288, A:F.288, A:W.291, A:W.291, A:E.296, A:W.382, A:F.408, A:F.408 Salt bridges: A:H.45, A:R.118 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEM.5: 17 residues within 4Å: Chain B: H.45, W.113, R.118, C.119, V.120, S.161, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: H4B.6, 01.8 18 PLIP interactions: 18 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:W.113, B:R.118, B:F.288, B:F.288, B:F.288, B:W.291, B:W.291, B:E.296, B:W.382, B:F.408, B:F.408 Hydrogen bonds: B:Y.410 Salt bridges: B:H.45, 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: 11 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 7 PLIP interactions: 6 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:R.300, A:R.300, A:V.381, A:W.382 pi-Stacking: A:W.382, A:W.382 Hydrophobic interactions: B:E.398 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 7 PLIP interactions: 1 interactions with chain A, 6 interactions with chain B Hydrophobic interactions: A:E.398 Hydrogen bonds: B:R.300, B:R.300, B:V.381, B:W.382 pi-Stacking: B:W.382, B:W.382

2 x ZN: ZINC ION(Non-covalent)

ZN.3: 5 residues within 4Å: Chain A: C.30, C.35 Chain B: C.30, C.35 Ligands: ZN.7 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 ZN.7: 5 residues within 4Å: Chain A: C.30, C.35 Chain B: C.30, C.35 Ligands: ZN.3 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

2 x 01: 6-({5-[2-(diethylamino)ethyl]-2,3-difluorophenoxy}methyl)-4-methylpyridin-2-amine

01.4: 14 residues within 4Å: Chain A: M.40, L.41, 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 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:L.41, A:P.269, A:Y.410 Hydrogen bonds: A:W.291, A:M.293 01.8: 14 residues within 4Å: Chain B: M.40, L.41, P.269, V.271, M.274, F.288, S.289, G.290, W.291, Y.292, M.293, E.296, Y.410 Ligands: HEM.5 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:L.41, B:P.269, B:Y.410 Hydrogen bonds: B:W.291, B:M.293

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ansari, A. et al., Highly potent, selective, and membrane permeable ether linked 2-aminopyridine-based human neuronal nitric oxide synthase inhibitors. To Be Published

Release Date

2025-09-10

Peptides

Nitric oxide synthase, brain: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Nitric oxide synthase, brain

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