SMTL ID : 4cvg.1

Structure of bovine endothelial nitric oxide synthase heme domain (H4B-free) supplemented with 50uM Zn acetate and with poor binding of 6-acetyl-2-amino-7,7-dimethyl-7,8-dihydropteridin-4(3H)-one.

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.31 Å

Oligo State

homo-dimer

Ligands

2 x ARG: ARGININE(Non-covalent)

ARG.1: 11 residues within 4Å: Chain A: Q.210, R.213, Y.294, P.297, V.299, G.318, W.319, Y.320, E.324, N.329 Ligands: HEM.2 10 PLIP interactions: 10 interactions with chain A, Hydrogen bonds: A:Q.210, A:Q.210, A:Y.294, A:G.318, A:W.319, A:E.324, A:N.329 Water bridges: A:R.213, A:R.335 Salt bridges: A:E.324 ARG.5: 10 residues within 4Å: Chain B: Q.210, R.213, Y.294, P.297, V.299, W.319, Y.320, E.324, N.329 Ligands: HEM.6 11 PLIP interactions: 9 interactions with chain B, 2 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.335, R.5, R.5 Salt bridges: B:R.213, B:E.324

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

HEM.2: 19 residues within 4Å: Chain A: W.141, A.144, R.146, C.147, V.148, G.149, L.156, S.189, M.302, F.316, S.317, G.318, W.319, M.321, E.324, W.410, F.436, Y.438 Ligands: ARG.1 24 PLIP interactions: 21 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: A:W.141, A:W.141, A:A.144, A:R.146, A:L.156, A:F.316, A:F.316, A:F.316, A:F.316, A:W.319, A:W.319, A:E.324, A:W.410, A:W.410, A:F.436, A:F.436, R.1 Hydrogen bonds: A:Y.438, R.1 Water bridges: A:R.328 Salt bridges: A:R.146 pi-Stacking: A:W.141 Metal complexes: A:C.147 pi-Cation interactions: R.1 HEM.6: 20 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, G.318, W.319, M.321, E.324, V.381, W.410, F.436, Y.438 Ligands: ARG.5 24 PLIP interactions: 21 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: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:R.146, B:R.328, B:Y.438 pi-Stacking: B:W.141 Metal complexes: B:C.147 Hydrogen bonds: R.5 pi-Cation interactions: R.5

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

ACT.3: 5 residues within 4Å: Chain A: G.149, I.151, W.319, V.381, S.389 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:W.319, A:S.389 ACT.7: 6 residues within 4Å: Chain B: G.149, I.151, Q.152, W.319, V.381, S.389 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:Q.152, B:W.319 Hydrogen bonds: B:S.389, B:S.389

1 x ZN: ZINC ION(Non-covalent)

ZN.4: 4 residues within 4Å: Chain A: C.57, C.62 Chain B: C.57, C.62 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:C.57, B:C.62, A:C.57, A:C.62

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.8: 3 residues within 4Å: Chain A: W.37 Chain B: R.328, H.334 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:R.328, B:H.334 Water bridges: B:R.328, B:D.332

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

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