SMTL ID : 2fbz.1

Heme-No complex in a bacterial Nitric Oxide Synthase

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 19 residues within 4Å: Chain A: W.60, S.63, R.65, C.66, I.67, G.68, L.75, F.235, N.236, G.237, W.238, M.240, E.243, W.329, Y.355, Y.357 Ligands: H2B.2, NO.3, HAR.4 16 PLIP interactions: 15 interactions with chain A, 1 Ligand-Ligand interactions Hydrophobic interactions: A:W.60, A:W.60, A:W.60, A:R.65, A:F.235, A:F.235, A:W.238, A:W.238, A:Y.355, A:Y.355 Hydrogen bonds: A:Y.357 Water bridges: A:R.247, A:Y.357 pi-Stacking: A:W.60 Metal complexes: A:C.66, NO.3 HEM.5: 19 residues within 4Å: Chain B: W.60, S.63, R.65, C.66, I.67, G.68, L.75, F.235, N.236, G.237, W.238, M.240, E.243, W.329, Y.355, Y.357 Ligands: H2B.6, NO.7, HAR.8 16 PLIP interactions: 15 interactions with chain B, 1 Ligand-Ligand interactions Hydrophobic interactions: B:W.60, B:W.60, B:W.60, B:R.65, B:F.235, B:F.235, B:W.238, B:W.238, B:Y.355, B:Y.355 Hydrogen bonds: B:Y.357 Water bridges: B:R.247, B:Y.357 pi-Stacking: B:W.60 Metal complexes: B:C.66, NO.7

2 x H2B: 2-AMINO-6-(1,2-DIHYDROXY-PROPYL)-7,8-DIHYDRO-6H-PTERIDIN-4-ONE(Non-covalent)

H2B.2: 6 residues within 4Å: Chain A: R.247, T.328, W.329 Chain B: F.342, R.344 Ligands: HEM.1 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:R.247, A:T.328, A:W.329 pi-Stacking: A:W.329, A:W.329 pi-Cation interactions: A:R.247, A:W.329 H2B.6: 6 residues within 4Å: Chain A: F.342, R.344 Chain B: R.247, T.328, W.329 Ligands: HEM.5 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:R.247, B:T.328, B:W.329 pi-Stacking: B:W.329, B:W.329 pi-Cation interactions: B:R.247, B:W.329

2 x NO: NITRIC OXIDE(Non-covalent)

NO.3: 4 residues within 4Å: Chain A: I.218, F.235 Ligands: HEM.1, HAR.4 1 PLIP interactions: 1 interactions with chain A Water bridges: A:G.237 NO.7: 4 residues within 4Å: Chain B: I.218, F.235 Ligands: HEM.5, HAR.8 1 PLIP interactions: 1 interactions with chain B Water bridges: B:G.237

2 x HAR: N-OMEGA-HYDROXY-L-ARGININE(Non-covalent)

HAR.4: 12 residues within 4Å: Chain A: Q.129, R.132, Y.213, P.216, I.218, G.237, W.238, Y.239, E.243, N.248 Ligands: HEM.1, NO.3 12 PLIP interactions: 12 interactions with chain A Hydrophobic interactions: A:I.218 Hydrogen bonds: A:Q.129, A:G.237, A:W.238, A:E.243, A:E.243, A:N.248 Water bridges: A:N.248, A:R.254, A:R.254 Salt bridges: A:R.132, A:E.243 HAR.8: 12 residues within 4Å: Chain B: Q.129, R.132, Y.213, P.216, I.218, G.237, W.238, Y.239, E.243, N.248 Ligands: HEM.5, NO.7 12 PLIP interactions: 12 interactions with chain B Hydrophobic interactions: B:I.218 Hydrogen bonds: B:Q.129, B:G.237, B:W.238, B:E.243, B:E.243, B:N.248 Water bridges: B:N.248, B:R.254, B:R.254 Salt bridges: B:R.132, B:E.243

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

2006-08-29

Peptides

Nitric oxide synthase oxygenase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
X

B
X

Nitric oxide synthase oxygenase

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