SMTL ID : 1dmj.1

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH 5,6-CYCLIC-TETRAHYDROPTERIDINE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.35 Å

Oligo State

homo-dimer

Ligands

4 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: 6 residues within 4Å: Chain A: G.150, I.152, W.320, V.382, S.390 Ligands: HEM.8 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.390, A:S.390 ACT.4: 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.5: 5 residues within 4Å: Chain B: G.150, W.320, V.382, S.390 Ligands: HEM.9 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:W.320, B:S.390

2 x CAC: CACODYLATE ION(Non-covalent)

CAC.3: 2 residues within 4Å: Chain A: W.286, C.346 No protein-ligand interaction detected (PLIP) CAC.6: 2 residues within 4Å: Chain B: W.286, C.346 No protein-ligand interaction detected (PLIP)

1 x ZN: ZINC ION(Non-covalent)

ZN.7: 5 residues within 4Å: Chain A: C.58, C.63 Chain B: C.58, C.63, G.65 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.8: 21 residues within 4Å: Chain A: W.142, A.145, R.147, C.148, V.149, G.150, L.157, S.190, M.303, F.317, S.318, G.319, W.320, M.322, E.325, W.411, F.437, Y.439 Ligands: ACT.2, AP4.10, ITU.11 19 PLIP interactions: 19 interactions with chain A, Hydrophobic interactions: A:W.142, A:W.142, A:A.145, A:R.147, A:V.149, A:L.157, A:F.317, A:F.317, A:F.317, A:F.317, A:W.320, A:E.325, A:F.437, A:F.437 Hydrogen bonds: A:Y.439 Water bridges: A:E.325 Salt bridges: A:R.147 pi-Stacking: A:W.142 Metal complexes: A:C.148 HEM.9: 20 residues within 4Å: Chain B: W.142, A.145, R.147, C.148, V.149, 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: ACT.5, AP4.12, ITU.13 19 PLIP interactions: 19 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: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 AP4: 7-AMINO-3,3A,4,5-TETRAHYDRO-8H-2-OXA-5,6,8,9B-TETRAAZA-CYCLOPENTA[A]NAPHTHALENE-1,9-DIONE(Non-covalent)

AP4.10: 9 residues within 4Å: Chain A: V.68, R.329, A.410, W.411 Chain B: W.409, F.424, H.425 Ligands: HEM.8, GOL.14 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:R.329, A:R.329, A:A.410, A:W.411 pi-Stacking: A:W.411, A:W.411 pi-Cation interactions: A:W.411 AP4.12: 9 residues within 4Å: Chain A: W.409, F.424, H.425 Chain B: V.68, R.329, A.410, W.411 Ligands: HEM.9, GOL.15 8 PLIP interactions: 8 interactions with chain B Hydrogen bonds: B:R.329, B:R.329, B:A.410, B:W.411 pi-Stacking: B:W.411, B:W.411 pi-Cation interactions: B:W.411, B:W.411

2 x ITU: ETHYLISOTHIOUREA(Non-covalent)

ITU.11: 7 residues within 4Å: Chain A: P.298, V.300, F.317, W.320, Y.321, E.325 Ligands: HEM.8 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:V.300, A:F.317 Hydrogen bonds: A:W.320 ITU.13: 7 residues within 4Å: Chain B: P.298, V.300, F.317, W.320, Y.321, E.325 Ligands: HEM.9 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:V.300 Hydrogen bonds: B:W.320

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.14: 5 residues within 4Å: Chain A: V.68, H.335, W.411 Chain B: W.38 Ligands: AP4.10 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.329, A:H.335 GOL.15: 6 residues within 4Å: Chain A: W.38 Chain B: V.68, R.329, H.335, W.411 Ligands: AP4.12 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:R.329, B:H.335 Water bridges: B:D.333

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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