SMTL ID : 3hsp.1

Ternary structure of neuronal nitric oxide synthase with NHA and NO bound(2)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 22 residues within 4Å: Chain A: W.113, A.116, R.118, C.119, V.120, G.121, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: NO.2, H4B.3, HAR.4, ACT.5 22 PLIP interactions: 21 interactions with chain A, 1 Ligand-Ligand interactions Hydrophobic interactions: A:W.113, A:W.113, A:W.113, A:A.116, A:R.118, A:L.128, A:F.288, A:F.288, A:F.288, A:F.288, A:W.291, A:W.291, A:E.296, A:W.382, A:W.382, A:F.408, A:F.408, A:F.408 Hydrogen bonds: A:Y.410 pi-Stacking: A:W.113 Metal complexes: A:C.119, NO.2 HEM.9: 22 residues within 4Å: Chain B: W.113, A.116, R.118, C.119, V.120, G.121, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, E.296, W.382, F.408, Y.410 Ligands: NO.10, H4B.11, HAR.12, ACT.13 18 PLIP interactions: 17 interactions with chain B, 1 Ligand-Ligand interactions Hydrophobic interactions: B:W.113, B:W.113, B:A.116, B:R.118, B:V.120, B:L.128, B:F.288, B:F.288, B:F.288, B:F.288, B:W.291, B:W.291, B:E.296, B:F.408, B:F.408 pi-Stacking: B:W.113 Metal complexes: B:C.119, NO.10

2 x NO: NITRIC OXIDE(Non-covalent)

NO.2: 3 residues within 4Å: Chain A: F.288 Ligands: HEM.1, HAR.4 No protein-ligand interaction detected (PLIP) NO.10: 3 residues within 4Å: Chain B: F.288 Ligands: HEM.9, HAR.12 No protein-ligand interaction detected (PLIP)

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

H4B.3: 11 residues within 4Å: Chain A: S.38, M.40, R.300, V.381, W.382 Chain B: W.380, F.395, H.396, Q.397, E.398 Ligands: HEM.1 12 PLIP interactions: 10 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:R.300, A:R.300, A:V.381, A:W.382 Water bridges: A:S.38, A:W.382, B:H.396 pi-Stacking: A:W.382, A:W.382 pi-Cation interactions: A:W.382, A:W.382 Hydrophobic interactions: B:E.398 H4B.11: 11 residues within 4Å: Chain A: W.380, F.395, H.396, Q.397, E.398 Chain B: S.38, M.40, R.300, V.381, W.382 Ligands: HEM.9 10 PLIP interactions: 9 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:R.300, B:V.381, B:W.382 Water bridges: B:R.300, B:R.300, B:R.300 pi-Stacking: B:W.382, B:W.382 pi-Cation interactions: B:W.382 Hydrophobic interactions: A:E.398

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

HAR.4: 11 residues within 4Å: Chain A: Q.182, Y.266, P.269, V.271, G.290, W.291, Y.292, E.296, D.301 Ligands: HEM.1, NO.2 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:V.271, A:Y.292 Hydrogen bonds: A:Q.182, A:Y.266, A:G.290, A:W.291, A:W.291, A:E.296, A:E.296 Water bridges: A:R.185, A:P.269, A:D.301, A:R.307, A:R.307 Salt bridges: A:E.296 HAR.12: 12 residues within 4Å: Chain B: Q.182, Y.266, P.269, V.271, S.289, G.290, W.291, Y.292, E.296, D.301 Ligands: HEM.9, NO.10 15 PLIP interactions: 15 interactions with chain B Hydrophobic interactions: B:V.271, B:Y.292 Hydrogen bonds: B:Q.182, B:G.290, B:W.291, B:W.291, B:Y.292, B:E.296, B:E.296 Water bridges: B:R.185, B:R.185, B:P.269, B:D.301, B:R.307 Salt bridges: B:E.296

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

ACT.5: 5 residues within 4Å: Chain A: G.121, I.123, W.291, V.353 Ligands: HEM.1 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:W.291 Hydrogen bonds: A:W.291 ACT.13: 6 residues within 4Å: Chain B: G.121, Q.124, W.291, V.353, S.361 Ligands: HEM.9 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:Q.124 Hydrogen bonds: B:W.291, B:S.361 Water bridges: B:Q.124

1 x ZN: ZINC ION(Non-covalent)

ZN.6: 5 residues within 4Å: Chain A: C.30, C.35, M.36 Chain B: C.30, C.35 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:C.30, B:C.35, A:C.30, A:C.35

5 x GOL: GLYCEROL(Non-functional Binders)

GOL.7: 2 residues within 4Å: Chain A: Q.68, R.373 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.373 Water bridges: A:Q.68, A:Y.107, A:R.114 GOL.8: 7 residues within 4Å: Chain A: I.106, K.110, S.126, K.127, L.128, Q.129, V.130 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:K.110, A:S.126, A:V.130, A:V.130 GOL.14: 4 residues within 4Å: Chain B: L.20, Q.68, R.373, T.405 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:R.373 Water bridges: B:K.23, B:H.111, B:R.114, B:T.405 GOL.15: 5 residues within 4Å: Chain B: S.181, A.201, N.202, N.273, D.413 9 PLIP interactions: 9 interactions with chain B Hydrogen bonds: B:S.181, B:N.273 Water bridges: B:S.181, B:S.181, B:S.181, B:S.181, B:A.201, B:A.201, B:N.202 GOL.16: 5 residues within 4Å: Chain B: R.220, Y.308, N.309, I.310, E.313 1 PLIP interactions: 1 interactions with chain B Water bridges: B:E.313

Links

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Citation

Doukov, T. et al., Single crystal structural and absorption spectral characterizations of nitric oxide synthase complexed with N(omega)-hydroxy-L-arginine and diatomic ligands. Biochemistry (2009)

Release Date

2009-10-20

Peptides

Nitric oxide synthase, brain: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase, brain

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