SMTL ID : 9c1y.1 (1 other biounit)

Structure of human neuronal nitric oxide synthase R354A/G357D mutant heme domain in complex with 7-((3-(((4-(6-aminopyridin-2-yl)butyl)amino)methyl)phenoxy)methyl)quinolin-2-amine

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 16 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, F.408, Y.410 Ligands: V5D.2 14 PLIP interactions: 14 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:A.116, A:R.118, A:F.288, A:F.288, A:W.291, A:E.296, A:F.408, A:F.408, A:F.408 Salt bridges: A:R.118 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEM.6: 17 residues within 4Å: Chain B: W.113, R.118, C.119, V.120, G.121, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, E.296, F.408, Y.410 Ligands: V5D.7 18 PLIP interactions: 18 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:W.113, B:R.118, B:L.128, B:F.288, B:F.288, B:F.288, B:F.288, B:W.291, B:W.291, B:E.296, B:F.408, B:F.408, B:F.408 Salt bridges: B:R.118 pi-Stacking: B:W.113 Metal complexes: B:C.119

2 x V5D: 7-{[3-({[4-(6-aminopyridin-2-yl)butyl]amino}methyl)phenoxy]methyl}quinolin-2-amine(Non-covalent)

V5D.2: 13 residues within 4Å: Chain A: M.40, Q.182, P.269, V.271, W.291, Y.292, E.296, V.381, W.382 Chain B: W.10, W.380, F.395 Ligands: HEM.1 11 PLIP interactions: 4 interactions with chain B, 7 interactions with chain A Hydrophobic interactions: B:W.10, B:W.380, B:F.395, A:V.271, A:V.381, A:W.382 pi-Stacking: B:H.396, A:W.382, A:W.382 Hydrogen bonds: A:E.296, A:V.381 V5D.7: 12 residues within 4Å: Chain A: W.380, F.395, H.396 Chain B: M.40, P.269, V.271, W.291, Y.292, E.296, V.381, W.382 Ligands: HEM.6 9 PLIP interactions: 6 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:V.381, B:W.382, A:W.380, A:F.395 Hydrogen bonds: B:E.296, B:V.381 pi-Stacking: B:W.382, B:W.382 pi-Cation interactions: A:H.396

3 x GOL: GLYCEROL(Non-functional Binders)

GOL.3: 4 residues within 4Å: Chain A: L.20, K.23, Q.68, R.373 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:R.373 Water bridges: A:K.23, A:Q.68, A:Q.68, A:T.405 GOL.4: 4 residues within 4Å: Chain A: K.110, S.126, L.128, V.130 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:K.110, A:L.128, A:L.128, A:Q.129, A:V.130 GOL.8: 4 residues within 4Å: Chain B: L.20, K.23, Q.68, R.373 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.68, B:Q.68, B:R.373 Water bridges: B:K.23

1 x ZN: ZINC ION(Non-covalent)

ZN.5: 5 residues within 4Å: Chain A: C.30, C.35 Chain B: C.30, C.35, M.36 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:C.30, A:C.35, B:C.30, B:C.35

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Weerawarna, P.M. et al., Discovery of Tetrahydrobiopterin Displacing Potent Neuronal Nitric Oxide Synthase Inhibitor with Unprecedented Binding Mode: Synthesis, Biochemical Evaluation, and Structural Characterization. To Be Published

Release Date

2025-06-11

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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