SMTL ID : 8ufp.1

Structure of human neuronal nitric oxide synthase R354A/G357D mutant heme domain in complex with 4-methyl-7-(4-methyl-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)quinolin-2-amine dihydrochloride

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: 18 residues within 4Å: Chain A: W.113, A.116, R.118, C.119, V.120, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: WK2.2 18 PLIP interactions: 18 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:W.113, A:A.116, A:R.118, A:L.128, A:F.288, A:F.288, A:F.288, A:W.291, A:W.291, A:E.296, A:F.408, A:F.408 Water bridges: A:W.382 Salt bridges: A:R.118 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEM.7: 19 residues within 4Å: Chain B: W.113, A.116, R.118, C.119, V.120, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, E.296, V.353, W.382, F.408, Y.410 Ligands: WK2.8 18 PLIP interactions: 18 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:W.113, B:A.116, B:R.118, B:V.120, B:L.128, B:F.288, B:F.288, B:F.288, B:W.291, B:E.296, B:V.353, B:F.408, B:F.408 Salt bridges: B:R.118 pi-Stacking: B:W.113 Metal complexes: B:C.119

4 x WK2: (7M)-4-methyl-7-(4-methyl-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl)quinolin-2-amine(Non-covalent)

WK2.2: 12 residues within 4Å: Chain A: P.269, V.271, M.274, F.288, S.289, G.290, W.291, Y.292, E.296, W.382, Y.410 Ligands: HEM.1 8 PLIP interactions: 8 interactions with chain A Hydrophobic interactions: A:P.269, A:V.271, A:F.288, A:F.288, A:W.382 Hydrogen bonds: A:M.293, A:E.296 Water bridges: A:N.273 WK2.3: 8 residues within 4Å: Chain A: S.38, M.40, V.381, W.382 Chain B: W.10, W.380, F.395, H.396 7 PLIP interactions: 4 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: A:V.381, A:W.382, B:W.10, B:W.380 Hydrogen bonds: A:V.381 pi-Stacking: A:W.382, B:H.396 WK2.8: 11 residues within 4Å: Chain B: P.269, V.271, M.274, F.288, G.290, W.291, Y.292, E.296, W.382, Y.410 Ligands: HEM.7 7 PLIP interactions: 7 interactions with chain B Hydrophobic interactions: B:V.271, B:F.288, B:F.288, B:W.382 Hydrogen bonds: B:E.296, B:Y.410 Water bridges: B:N.273 WK2.9: 8 residues within 4Å: Chain A: W.10, W.380, F.395, H.396 Chain B: S.38, M.40, V.381, W.382 9 PLIP interactions: 5 interactions with chain A, 4 interactions with chain B Hydrophobic interactions: A:W.10, A:W.10, A:W.10, A:W.380, B:V.381, B:W.382 pi-Stacking: A:H.396, B:W.382 Hydrogen bonds: B:V.381

3 x GOL: GLYCEROL(Non-functional Binders)

GOL.4: 3 residues within 4Å: Chain A: L.20, Q.68, R.373 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:Q.68, A:R.373 Water bridges: A:Q.68, A:Q.68, A:Y.107 GOL.5: 5 residues within 4Å: Chain A: I.106, K.110, L.128, Q.129, V.130 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:K.110, A:L.128, A:L.128, A:V.130 Water bridges: A:Q.129 GOL.10: 3 residues within 4Å: Chain B: Q.68, Y.107, R.373 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:Q.68, B:Q.68, B:Y.107, B:R.373 Water bridges: B:R.114, B:R.114

1 x ZN: ZINC ION(Non-covalent)

ZN.6: 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

Li, H. et al., Crystallographic and Computational Insights into Isoform-Selective Dynamics in Nitric Oxide Synthase. Biochemistry (2024)

Release Date

2024-03-13

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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