SMTL ID : 1dmk.1

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH 4-AMINO-6-PHENYL-TETRAHYDROPTERIDINE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

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

ACT.1: 4 residues within 4Å: Chain A: Q.211, R.214, N.330, R.336 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.211, A:N.330 Salt bridges: A:R.214, A:R.336 ACT.2: 2 residues within 4Å: Chain A: R.329 Ligands: AP6.7 3 PLIP interactions: 3 interactions with chain A Water bridges: A:R.329 Salt bridges: A:R.329, A:H.335 ACT.3: 4 residues within 4Å: Chain A: G.150, W.320, V.382, S.390 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.390, A:S.390 ACT.9: 4 residues within 4Å: Chain B: Q.211, R.214, N.330, R.336 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.211, B:N.330 Salt bridges: B:R.214, B:R.336 ACT.10: 3 residues within 4Å: Chain B: V.68, R.329 Ligands: AP6.15 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:V.68 Salt bridges: B:R.329 ACT.11: 6 residues within 4Å: Chain B: G.150, I.152, Q.153, W.320, V.382, S.390 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:Q.153 Hydrogen bonds: B:W.320, B:S.390 ACT.12: 8 residues within 4Å: Chain A: D.360, V.364, I.416, S.417 Chain B: D.360, V.364, I.416, S.417 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:D.360, B:S.417, A:S.417 Hydrophobic interactions: A:D.360, A:V.364

2 x CAC: CACODYLATE ION(Non-covalent)

CAC.4: 2 residues within 4Å: Chain A: W.286, C.346 No protein-ligand interaction detected (PLIP) CAC.13: 2 residues within 4Å: Chain B: W.286, C.346 No protein-ligand interaction detected (PLIP)

1 x ZN: ZINC ION(Non-covalent)

ZN.5: 5 residues within 4Å: Chain A: C.58, C.63, G.65 Chain B: C.58, C.63 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:C.58, B:C.63, A:C.58, A:C.63

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

HEM.6: 18 residues within 4Å: Chain A: W.142, A.145, R.147, C.148, V.149, G.150, S.190, F.317, S.318, G.319, W.320, M.322, E.325, W.411, F.437, Y.439 Ligands: AP6.7, ITU.8 18 PLIP interactions: 18 interactions with chain A, Hydrophobic interactions: A:W.142, A:W.142, A:A.145, A:R.147, A:F.317, A:F.317, A:F.317, A:F.317, A:W.320, A:W.320, A:E.325, A:F.437, A:F.437 Hydrogen bonds: A:R.147, A:Y.439 Water bridges: A:E.325 pi-Stacking: A:W.142 Metal complexes: A:C.148 HEM.14: 20 residues within 4Å: Chain B: W.142, A.145, R.147, C.148, V.149, G.150, L.157, S.190, M.303, F.317, S.318, W.320, M.322, E.325, V.382, W.411, F.437, Y.439 Ligands: AP6.15, ITU.16 18 PLIP interactions: 18 interactions with chain B, Hydrophobic interactions: B:W.142, B:W.142, B:W.142, B:A.145, B:V.149, B:L.157, B:F.317, B:F.317, B:F.317, B:W.320, B:W.320, B:E.325, B:V.382, B:F.437, B:F.437, B:F.437 pi-Stacking: B:W.142 Metal complexes: B:C.148

2 x AP6: 2,4-DIAMINO-6-PHENYL-5,6,7,8,-TETRAHYDROPTERIDINE(Non-covalent)

AP6.7: 13 residues within 4Å: Chain A: S.66, V.68, R.329, A.410, W.411 Chain B: W.38, W.409, F.424, H.425, Q.426, E.427 Ligands: ACT.2, HEM.6 11 PLIP interactions: 9 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:V.68, B:W.38, B:E.427 Hydrogen bonds: A:R.329, A:R.329, A:A.410, A:W.411 Water bridges: A:R.329 pi-Stacking: A:W.411, A:W.411 pi-Cation interactions: A:W.411 AP6.15: 13 residues within 4Å: Chain A: W.38, W.409, F.424, H.425, Q.426, E.427 Chain B: S.66, V.68, R.329, A.410, W.411 Ligands: ACT.10, HEM.14 9 PLIP interactions: 2 interactions with chain A, 7 interactions with chain B Hydrophobic interactions: A:W.409, A:E.427, B:V.68 Hydrogen bonds: B:R.329, B:A.410, B:W.411 pi-Stacking: B:W.411, B:W.411 pi-Cation interactions: B:W.411

2 x ITU: ETHYLISOTHIOUREA(Non-covalent)

ITU.8: 7 residues within 4Å: Chain A: P.298, V.300, F.317, W.320, Y.321, E.325 Ligands: HEM.6 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:V.300, A:F.317 Hydrogen bonds: A:W.320, A:E.325 ITU.16: 8 residues within 4Å: Chain B: P.298, V.300, F.317, G.319, W.320, Y.321, E.325 Ligands: HEM.14 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:V.300, B:F.317 Hydrogen bonds: B:W.320, B:E.325

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Kotsonis, P. et al., Structural basis for pterin antagonism in nitric-oxide synthase. Development of novel 4-oxo-pteridine antagonists of (6R)-5,6,7,8-tetrahydrobiopterin. J.Biol.Chem. (2001)

Release Date

2000-12-20

Peptides

NITRIC OXIDE SYNTHASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

NITRIC OXIDE SYNTHASE

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