SMTL ID : 4a6d.1

Crystal structure of human N-acetylserotonin methyltransferase (ASMT) in complex with SAM

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

homo-dimer

Ligands

4 x ZN: ZINC ION(Non-covalent)

ZN.1: 2 residues within 4Å: Chain A: E.267, H.271 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:E.267, A:H.271, H2O.2, H2O.3, H2O.3 ZN.2: 1 residues within 4Å: Chain A: M.319 No protein-ligand interaction detected (PLIP) ZN.9: 2 residues within 4Å: Chain B: E.267, H.271 5 PLIP interactions: 2 interactions with chain B, 3 Ligand-Water interactions Metal complexes: B:E.267, B:H.271, H2O.5, H2O.5, H2O.6 ZN.10: 1 residues within 4Å: Chain B: M.319 No protein-ligand interaction detected (PLIP)

2 x SAM: S-ADENOSYLMETHIONINE(Non-covalent)

SAM.3: 17 residues within 4Å: Chain A: F.143, Y.147, L.160, W.164, G.187, G.189, F.209, D.210, I.211, V.214, G.235, D.236, F.237, F.238, A.251, R.252, D.256 10 PLIP interactions: 10 interactions with chain A Hydrogen bonds: A:Y.147, A:G.187, A:G.189, A:I.211, A:D.236, A:F.237 Water bridges: A:A.251 Salt bridges: A:R.252, A:D.256 pi-Stacking: A:F.237 SAM.11: 17 residues within 4Å: Chain B: F.143, Y.147, L.160, W.164, G.187, G.189, F.209, D.210, I.211, V.214, G.235, D.236, F.237, F.238, A.251, R.252, D.256 12 PLIP interactions: 12 interactions with chain B Hydrogen bonds: B:Y.147, B:Y.147, B:G.187, B:G.189, B:I.211, B:D.236, B:D.236, B:F.237 Water bridges: B:A.251 Salt bridges: B:R.252, B:D.256 pi-Stacking: B:F.237

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

SO4.4: 4 residues within 4Å: Chain A: H.318, R.327, D.328, F.329 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.328, A:F.329 Salt bridges: A:H.318 SO4.5: 3 residues within 4Å: Chain A: K.107, R.111, Q.155 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.155, A:Q.155 Salt bridges: A:K.107, A:R.111 SO4.6: 3 residues within 4Å: Chain A: K.74, T.87, E.88 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:E.88 Salt bridges: A:K.74 SO4.7: 2 residues within 4Å: Chain A: G.346, T.347 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:T.347, A:T.347 Water bridges: A:K.345 SO4.12: 4 residues within 4Å: Chain B: H.318, R.327, D.328, F.329 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:D.328, B:F.329 Salt bridges: B:H.318 SO4.13: 3 residues within 4Å: Chain B: K.107, R.111, Q.155 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.155, B:Q.155 Salt bridges: B:K.107, B:R.111 SO4.14: 3 residues within 4Å: Chain B: K.74, T.87, E.88 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:E.88 Salt bridges: B:K.74 SO4.15: 2 residues within 4Å: Chain B: G.346, T.347 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:T.347, B:T.347 Water bridges: B:D.328, B:K.345

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.8: 6 residues within 4Å: Chain A: L.31, G.32, D.35, L.36, E.39, G.52 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.35, A:E.39, A:G.52 GOL.16: 6 residues within 4Å: Chain B: L.31, G.32, D.35, L.36, E.39, G.52 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:E.39, B:G.52

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Botros, H.G. et al., Crystal Structure and Functional Mapping of Human Asmt, the Last Enzyme of the Melatonin Synthesis Pathway. J.Pineal Res. (2013)

Release Date

2012-11-07

Peptides

HYDROXYINDOLE O-METHYLTRANSFERASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

HYDROXYINDOLE O-METHYLTRANSFERASE

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