SMTL ID : 3ej8.1 (1 other biounit)

Structure of double mutant of human iNOS oxygenase domain with bound immidazole

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.55 Å

Oligo State

homo-dimer

Ligands

2 x HEC: HEME C(Non-covalent)

HEC.1: 18 residues within 4Å: Chain A: W.113, R.118, C.119, G.121, Q.124, L.128, S.161, M.274, F.288, N.289, G.290, W.291, E.296, W.382, Y.408, Y.410 Ligands: H4B.2, IMD.4 17 PLIP interactions: 17 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:W.113, A:Q.124, A:L.128, A:F.288, A:F.288, A:F.288, A:W.291, A:W.291, A:E.296, A:Y.408, A:Y.408 Hydrogen bonds: A:Y.410 Water bridges: A:R.300 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEC.5: 20 residues within 4Å: Chain B: W.113, R.118, C.119, I.120, G.121, Q.124, S.161, M.274, F.288, N.289, G.290, W.291, M.293, E.296, M.353, W.382, Y.408, Y.410 Ligands: H4B.6, IMD.7 16 PLIP interactions: 16 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:R.118, B:I.120, B:Q.124, B:F.288, B:F.288, B:W.291, B:W.291, B:E.296, B:W.382, B:Y.408, B:Y.408 Hydrogen bonds: B:Y.410 pi-Stacking: B:W.113 Metal complexes: B:C.119

2 x H4B: 5,6,7,8-TETRAHYDROBIOPTERIN(Non-covalent)

H4B.2: 11 residues within 4Å: Chain A: S.37, M.39, R.300, I.381, W.382 Chain B: W.9, W.380, F.395, H.396, Q.397 Ligands: HEC.1 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:R.300, A:R.300, A:W.382 Water bridges: A:I.38 pi-Stacking: A:W.382, A:W.382 pi-Cation interactions: A:W.382, A:W.382 H4B.6: 12 residues within 4Å: Chain A: W.9, W.380, F.395, H.396, Q.397, E.398 Chain B: S.37, M.39, R.300, I.381, W.382 Ligands: HEC.5 9 PLIP interactions: 7 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:R.300, B:R.300, B:W.382, A:H.396 pi-Stacking: B:W.382, B:W.382, B:W.382, A:F.395 pi-Cation interactions: B:W.382

1 x ZN: ZINC ION(Non-covalent)

ZN.3: 4 residues within 4Å: Chain A: C.29, C.34 Chain B: C.29, C.34 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:C.29, B:C.34, A:C.29, A:C.34

2 x IMD: IMIDAZOLE(Non-covalent)

IMD.4: 4 residues within 4Å: Chain A: P.269, W.291, E.296 Ligands: HEC.1 No protein-ligand interaction detected (PLIP) IMD.7: 5 residues within 4Å: Chain B: P.269, G.290, W.291, E.296 Ligands: HEC.5 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:W.291

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Garcin, E.D. et al., Anchored plasticity opens doors for selective inhibitor design in nitric oxide synthase. Nat.Chem.Biol. (2008)

Release Date

2008-10-07

Peptides

Nitric oxide synthase, inducible: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase, inducible

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