SMTL ID : 2g6o.1

Structure of bovine eNOS heme domain (BH4-free) complexed with CO

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

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

ACT.1: 6 residues within 4Å: Chain A: G.122, I.124, W.292, V.354, S.362 Ligands: HEM.4 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.362, A:S.362 ACT.9: 7 residues within 4Å: Chain B: V.121, G.122, I.124, W.292, A.359, S.362 Ligands: HEM.11 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:A.359 Hydrogen bonds: B:W.292, B:S.362

2 x CAC: CACODYLATE ION(Non-covalent)

CAC.2: 2 residues within 4Å: Chain A: W.258, C.318 No protein-ligand interaction detected (PLIP) CAC.10: 2 residues within 4Å: Chain B: W.258, C.318 No protein-ligand interaction detected (PLIP)

1 x ZN: ZINC ION(Non-covalent)

ZN.3: 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

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

HEM.4: 22 residues within 4Å: Chain A: W.114, A.117, R.119, C.120, V.121, G.122, L.129, S.162, M.275, F.289, S.290, G.291, W.292, M.294, E.297, W.383, F.409, Y.411 Ligands: ACT.1, ARG.5, CMO.6, GOL.7 26 PLIP interactions: 21 interactions with chain A, 5 Ligand-Ligand interactions Hydrophobic interactions: A:W.114, A:W.114, A:W.114, A:A.117, A:L.129, A:F.289, A:F.289, A:F.289, A:W.292, A:W.292, A:E.297, A:F.409, A:F.409, A:F.409, R.5 Hydrogen bonds: A:Y.411, R.5, R.5 Water bridges: A:R.301, A:R.301, A:R.301, R.5 Salt bridges: A:R.119 pi-Stacking: A:W.114 Metal complexes: A:C.120, CMO.6 HEM.11: 23 residues within 4Å: Chain B: W.114, A.117, R.119, C.120, V.121, G.122, L.129, S.162, M.275, F.289, S.290, G.291, W.292, M.294, E.297, V.354, W.383, F.409, Y.411 Ligands: ACT.9, ARG.12, CMO.13, GOL.14 27 PLIP interactions: 22 interactions with chain B, 5 Ligand-Ligand interactions Hydrophobic interactions: B:W.114, B:W.114, B:W.114, B:A.117, B:F.289, B:F.289, B:F.289, B:F.289, B:W.292, B:E.297, B:V.354, B:W.383, B:F.409, B:F.409, B:F.409, R.12 Water bridges: B:R.119, B:R.301, B:R.301, B:R.301, R.12 Salt bridges: B:R.119 pi-Stacking: B:W.114 Metal complexes: B:C.120, CMO.13 Hydrogen bonds: R.12 pi-Cation interactions: R.12

2 x ARG: ARGININE(Non-covalent)

ARG.5: 11 residues within 4Å: Chain A: Q.183, R.186, Y.267, P.270, W.292, Y.293, M.294, E.297, N.302 Ligands: HEM.4, CMO.6 13 PLIP interactions: 10 interactions with chain A, 3 Ligand-Ligand interactions Hydrogen bonds: A:Q.183, A:Y.267, A:W.292, A:M.294, A:E.297, A:E.297, A:E.297, A:N.302, R.5 Water bridges: A:R.186, A:R.308, R.5, R.5 ARG.12: 10 residues within 4Å: Chain B: Q.183, R.186, Y.267, P.270, W.292, Y.293, E.297, N.302 Ligands: HEM.11, CMO.13 12 PLIP interactions: 9 interactions with chain B, 3 Ligand-Ligand interactions Hydrogen bonds: B:Q.183, B:W.292, B:W.292, B:Y.293, B:E.297, B:N.302, R.12 Water bridges: B:R.308, R.12, R.12 Salt bridges: B:R.186, B:E.297

2 x CMO: CARBON MONOXIDE(Non-functional Binders)

CMO.6: 2 residues within 4Å: Ligands: HEM.4, ARG.5 No protein-ligand interaction detected (PLIP) CMO.13: 3 residues within 4Å: Chain B: F.289 Ligands: HEM.11, ARG.12 2 PLIP interactions: 2 Ligand-Ligand interactions Hydrogen bonds: R.12, R.12

3 x GOL: GLYCEROL(Non-functional Binders)

GOL.7: 7 residues within 4Å: Chain A: R.301, A.382, W.383 Chain B: W.381, F.396 Ligands: HEM.4, GOL.8 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:R.301, A:R.301, A:A.382 GOL.8: 4 residues within 4Å: Chain A: R.301, H.307 Chain B: W.10 Ligands: GOL.7 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.301, A:R.301 GOL.14: 6 residues within 4Å: Chain A: W.381, F.396 Chain B: R.301, A.382, W.383 Ligands: HEM.11 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:R.301, B:A.382 Water bridges: B:R.301

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Li, H. et al., Structural studies of constitutive nitric oxide synthases with diatomic ligands bound. J.Biol.Inorg.Chem. (2006)

Release Date

2006-08-08

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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