SMTL ID : 2fc1.1

Heme NO Complex in NOS

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 21 residues within 4Å: Chain A: W.60, S.63, R.65, C.66, I.67, G.68, L.75, P.108, I.216, F.233, N.234, G.235, W.236, M.238, E.241, W.327, Y.353, Y.355 Ligands: NO.2, ARG.3, HBI.4 22 PLIP interactions: 17 interactions with chain A, 5 Ligand-Ligand interactions Hydrophobic interactions: A:W.60, A:W.60, A:R.65, A:P.108, A:I.216, A:F.233, A:F.233, A:W.236, A:W.236, A:Y.353, A:Y.353, R.3 Hydrogen bonds: A:Y.355, R.3 Water bridges: A:R.65, A:R.245, A:Y.355 pi-Stacking: A:W.60 Metal complexes: A:C.66, NO.2 pi-Cation interactions: R.3, R.3 HEM.5: 21 residues within 4Å: Chain B: W.60, S.63, R.65, C.66, I.67, G.68, L.75, P.108, I.216, F.233, N.234, G.235, W.236, M.238, E.241, W.327, Y.353, Y.355 Ligands: NO.6, ARG.7, HBI.8 22 PLIP interactions: 17 interactions with chain B, 5 Ligand-Ligand interactions Hydrophobic interactions: B:W.60, B:W.60, B:R.65, B:P.108, B:I.216, B:F.233, B:F.233, B:W.236, B:W.236, B:Y.353, B:Y.353, R.7 Hydrogen bonds: B:Y.355, R.7 Water bridges: B:R.65, B:R.245, B:Y.355 pi-Stacking: B:W.60 Metal complexes: B:C.66, NO.6 pi-Cation interactions: R.7, R.7

2 x NO: NITRIC OXIDE(Non-covalent)

NO.2: 5 residues within 4Å: Chain A: C.66, I.216, F.233 Ligands: HEM.1, ARG.3 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Ligand interactions Water bridges: A:G.235 Hydrogen bonds: R.3 NO.6: 5 residues within 4Å: Chain B: C.66, I.216, F.233 Ligands: HEM.5, ARG.7 2 PLIP interactions: 1 interactions with chain B, 1 Ligand-Ligand interactions Water bridges: B:G.235 Hydrogen bonds: R.7

2 x ARG: ARGININE(Non-covalent)

ARG.3: 12 residues within 4Å: Chain A: Q.129, R.132, Y.211, P.214, I.216, G.235, W.236, Y.237, E.241, N.246 Ligands: HEM.1, NO.2 18 PLIP interactions: 15 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: A:P.214, A:I.216 Hydrogen bonds: A:Q.129, A:G.235, A:W.236, A:W.236, A:M.238, A:E.241, A:N.246 Water bridges: A:Y.211, A:N.246, A:N.246, A:R.252, R.3, R.3, R.3 Salt bridges: A:R.132, A:E.241 ARG.7: 12 residues within 4Å: Chain B: Q.129, R.132, Y.211, P.214, I.216, G.235, W.236, Y.237, E.241, N.246 Ligands: HEM.5, NO.6 18 PLIP interactions: 15 interactions with chain B, 3 Ligand-Ligand interactions Hydrophobic interactions: B:P.214, B:I.216 Hydrogen bonds: B:Q.129, B:G.235, B:W.236, B:W.236, B:M.238, B:E.241, B:N.246 Water bridges: B:Y.211, B:N.246, B:N.246, B:R.252, R.7, R.7, R.7 Salt bridges: B:R.132, B:E.241

2 x HBI: 7,8-DIHYDROBIOPTERIN(Non-covalent)

HBI.4: 8 residues within 4Å: Chain A: R.245, T.326, W.327 Chain B: W.325, F.340, H.341, R.342 Ligands: HEM.1 7 PLIP interactions: 6 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:R.245, A:T.326, A:W.327, B:F.340 Water bridges: A:R.245 pi-Stacking: A:W.327, A:W.327 HBI.8: 8 residues within 4Å: Chain A: W.325, F.340, H.341, R.342 Chain B: R.245, T.326, W.327 Ligands: HEM.5 7 PLIP interactions: 1 interactions with chain A, 6 interactions with chain B Hydrogen bonds: A:F.340, B:R.245, B:T.326, B:W.327 Water bridges: B:R.245 pi-Stacking: B:W.327, B:W.327

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Pant, K. et al., Nitrosyl-Heme Structures of Bacillus subtilis Nitric Oxide Synthase Have Implications for Understanding Substrate Oxidation. Biochemistry (2006)

Release Date

2006-04-04

Peptides

Nitric Oxide Synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Nitric Oxide Synthase

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