SMTL ID : 3nqs.2 (1 other biounit)

Crystal Structure of Inducible Nitric Oxide Synthase with N-Nitrosated-pterin

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 21 residues within 4Å: Chain A: W.123, A.126, R.128, C.129, I.130, G.131, Q.134, L.138, S.171, M.284, F.298, N.299, G.300, W.301, E.306, W.392, Y.418, Y.420 Ligands: H4B.2, AT2.4, EDO.5 17 PLIP interactions: 17 interactions with chain A, Hydrophobic interactions: A:W.123, A:W.123, A:A.126, A:I.130, A:Q.134, A:L.138, A:L.138, A:F.298, A:F.298, A:F.298, A:W.301, A:Y.418 Hydrogen bonds: A:Y.420 Water bridges: A:Q.192, A:Y.420 pi-Stacking: A:W.123 Metal complexes: A:C.129 HEM.9: 21 residues within 4Å: Chain B: W.123, A.126, R.128, C.129, I.130, G.131, Q.134, L.138, S.171, M.284, F.298, N.299, G.300, W.301, E.306, W.392, Y.418, Y.420 Ligands: H4B.10, AT2.12, EDO.13 18 PLIP interactions: 18 interactions with chain B, Hydrophobic interactions: B:W.123, B:W.123, B:A.126, B:I.130, B:Q.134, B:L.138, B:L.138, B:F.298, B:F.298, B:F.298, B:W.301, B:Y.418 Water bridges: B:Q.192, B:E.306, B:E.306, B:Y.420 pi-Stacking: B:W.123 Metal complexes: B:C.129

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

H4B.2: 13 residues within 4Å: Chain A: S.47, M.49, R.310, I.391, W.392 Chain B: W.390, F.405, H.406, Q.407, E.408 Ligands: HEM.1, NO.3, EDO.5 12 PLIP interactions: 2 interactions with chain B, 10 interactions with chain A Hydrophobic interactions: B:E.408 Water bridges: B:H.406, A:S.47, A:R.310, A:W.392 Hydrogen bonds: A:R.310, A:I.391, A:W.392 pi-Stacking: A:W.392, A:W.392 pi-Cation interactions: A:W.392, A:W.392 H4B.10: 13 residues within 4Å: Chain A: W.390, F.405, H.406, Q.407, E.408 Chain B: S.47, M.49, R.310, I.391, W.392 Ligands: HEM.9, NO.11, EDO.13 12 PLIP interactions: 10 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:R.310, B:I.391, B:W.392 Water bridges: B:S.47, B:R.310, B:W.392, A:H.406 pi-Stacking: B:W.392, B:W.392 pi-Cation interactions: B:W.392, B:W.392 Hydrophobic interactions: A:E.408

2 x NO: NITRIC OXIDE(Non-covalent)

NO.3: 4 residues within 4Å: Chain A: M.49, R.310 Chain B: F.405 Ligands: H4B.2 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.310, A:R.310 NO.11: 4 residues within 4Å: Chain A: F.405 Chain B: M.49, R.310 Ligands: H4B.10 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:R.310, B:R.310

2 x AT2: ETHYL 4-[(4-METHYLPYRIDIN-2-YL)AMINO]PIPERIDINE-1-CARBOXYLATE(Non-covalent)

AT2.4: 17 residues within 4Å: Chain A: Q.192, I.194, R.195, Y.276, P.279, A.280, V.281, F.298, N.299, G.300, W.301, Y.302, E.306, D.311, R.317 Ligands: HEM.1, EDO.5 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:V.281, A:F.298 Hydrogen bonds: A:E.306 AT2.12: 17 residues within 4Å: Chain B: Q.192, I.194, R.195, Y.276, P.279, A.280, V.281, F.298, N.299, G.300, W.301, Y.302, E.306, D.311, R.317 Ligands: HEM.9, EDO.13 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:V.281, B:F.298 Hydrogen bonds: B:Y.276, B:Y.302, B:E.306

2 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.5: 4 residues within 4Å: Chain A: R.310 Ligands: HEM.1, H4B.2, AT2.4 1 PLIP interactions: 1 interactions with chain A Water bridges: A:Q.192 EDO.13: 4 residues within 4Å: Chain B: R.310 Ligands: HEM.9, H4B.10, AT2.12 2 PLIP interactions: 2 interactions with chain B Water bridges: B:Q.192, B:R.310

2 x BOG: octyl beta-D-glucopyranoside(Non-covalent)

BOG.6: 4 residues within 4Å: Chain A: Y.80, I.88, H.91, L.92 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:L.92 Hydrogen bonds: A:Y.80, A:H.91 Salt bridges: A:H.91 BOG.14: 4 residues within 4Å: Chain B: Y.80, I.88, H.91, L.92 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:L.92 Hydrogen bonds: B:Y.80 Salt bridges: B:H.91

4 x SO4: SULFATE ION(Non-functional Binders)

SO4.7: 2 residues within 4Å: Chain A: R.15, K.17 2 PLIP interactions: 2 interactions with chain A Salt bridges: A:R.15, A:K.17 SO4.8: 3 residues within 4Å: Chain A: R.15, I.24, H.26 2 PLIP interactions: 2 interactions with chain A Salt bridges: A:R.15, A:H.26 SO4.15: 2 residues within 4Å: Chain B: R.15, K.17 2 PLIP interactions: 2 interactions with chain B Salt bridges: B:R.15, B:K.17 SO4.16: 3 residues within 4Å: Chain B: R.15, I.24, H.26 2 PLIP interactions: 2 interactions with chain B Salt bridges: B:R.15, B:H.26

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rosenfeld, R.J. et al., Nitric-oxide synthase forms N-NO-pterin and S-NO-cys: implications for activity, allostery, and regulation. J.Biol.Chem. (2010)

Release Date

2010-07-21

Peptides

Nitric oxide synthase, inducible: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

Nitric oxide synthase, inducible

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