SMTL ID : 4cul.1

Structure of bovine endothelial nitric oxide synthase heme domain in complex with 6-acetyl-2-amino-7,7-dimethyl-7,8-dihydropteridin-4(3H)-one

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.23 Å

Oligo State

homo-dimer

Ligands

2 x ARG: ARGININE(Non-covalent)

ARG.1: 10 residues within 4Å: Chain A: Q.210, R.213, Y.294, P.297, V.299, W.319, Y.320, E.324, N.329 Ligands: HEM.2 14 PLIP interactions: 13 interactions with chain A, 1 Ligand-Ligand interactions Hydrogen bonds: A:Q.210, A:Q.210, A:Y.294, A:W.319, A:W.319, A:E.324, A:N.329 Water bridges: A:R.213, A:G.318, A:N.329, A:R.335, R.1 Salt bridges: A:R.213, A:E.324 ARG.5: 9 residues within 4Å: Chain B: Q.210, Y.294, P.297, V.299, W.319, Y.320, E.324, N.329 Ligands: HEM.6 13 PLIP interactions: 12 interactions with chain B, 1 Ligand-Ligand interactions Hydrophobic interactions: B:V.299 Hydrogen bonds: B:Q.210, B:Q.210, B:W.319, B:Y.320, B:N.329 Water bridges: B:R.213, B:G.318, B:G.318, B:N.329, B:R.335, R.5 Salt bridges: B:E.324

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

HEM.2: 18 residues within 4Å: Chain A: W.141, R.146, C.147, V.148, G.149, S.189, F.316, S.317, G.318, W.319, M.321, E.324, W.410, F.436, Y.438 Ligands: ARG.1, WSD.3, ACT.4 21 PLIP interactions: 18 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: A:W.141, A:W.141, A:W.141, A:R.146, A:F.316, A:F.316, A:F.316, A:F.316, A:W.319, A:E.324, A:W.410, A:F.436, A:F.436, A:F.436, R.1 Hydrogen bonds: A:Y.438, R.1 Water bridges: A:Y.438 pi-Stacking: A:W.141 Metal complexes: A:C.147 pi-Cation interactions: R.1 HEM.6: 21 residues within 4Å: Chain B: W.141, A.144, R.146, C.147, V.148, G.149, L.156, S.189, M.302, F.316, S.317, W.319, M.321, E.324, V.381, W.410, F.436, Y.438 Ligands: ARG.5, WSD.7, ACT.8 23 PLIP interactions: 20 interactions with chain B, 3 Ligand-Ligand interactions Hydrophobic interactions: B:W.141, B:W.141, B:W.141, B:A.144, B:L.156, B:F.316, B:F.316, B:F.316, B:W.319, B:W.319, B:E.324, B:V.381, B:W.410, B:W.410, B:F.436, B:F.436, B:F.436, R.5 Water bridges: B:Y.438 pi-Stacking: B:W.141 Metal complexes: B:C.147 Hydrogen bonds: R.5 pi-Cation interactions: R.5

2 x WSD: 6-acetyl-2-amino-7,7-dimethyl-7,8-dihydropteridin-4(3H)-one(Non-covalent)

WSD.3: 8 residues within 4Å: Chain A: R.328, A.409, W.410 Chain B: W.37, W.408, F.423, H.424 Ligands: HEM.2 10 PLIP interactions: 3 interactions with chain B, 7 interactions with chain A Hydrophobic interactions: B:W.37, B:W.408, B:F.423 Hydrogen bonds: A:R.328, A:A.409, A:W.410 Water bridges: A:R.328, A:R.328 pi-Stacking: A:W.410, A:W.410 WSD.7: 8 residues within 4Å: Chain A: W.37, W.408, F.423, H.424 Chain B: R.328, A.409, W.410 Ligands: HEM.6 9 PLIP interactions: 3 interactions with chain A, 6 interactions with chain B Hydrophobic interactions: A:W.37, A:W.408, A:F.423 Hydrogen bonds: B:R.328, B:R.328, B:A.409, B:W.410 pi-Stacking: B:W.410, B:W.410

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

ACT.4: 5 residues within 4Å: Chain A: G.149, W.319, V.381, S.389 Ligands: HEM.2 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:W.319, A:S.389 ACT.8: 5 residues within 4Å: Chain B: G.149, W.319, V.381, S.389 Ligands: HEM.6 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:S.389, B:S.389

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Chreifi, G. et al., Communication between the Zinc and Tetrahydrobiopterin Binding Sites in Nitric Oxide Synthase. Biochemistry (2014)

Release Date

2014-05-28

Peptides

NITRIC OXIDE SYNTHASE, ENDOTHELIAL: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

NITRIC OXIDE SYNTHASE, ENDOTHELIAL