SMTL ID : 1fp1.1

CRYSTAL STRUCTURE ANALYSIS OF CHALCONE O-METHYLTRANSFERASE

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.82 Å

Oligo State

homo-dimer

Ligands

2 x SAH: S-ADENOSYL-L-HOMOCYSTEINE(Non-covalent)

SAH.1: 15 residues within 4Å: Chain A: C.193, G.217, G.218, G.219, N.223, D.240, L.241, V.244, G.259, D.260, M.261, F.262, K.274, A.275, W.280 10 PLIP interactions: 10 interactions with chain A Hydrogen bonds: A:G.217, A:N.223, A:L.241, A:D.260, A:D.260, A:M.261, A:K.274 Water bridges: A:K.274, A:N.279 Salt bridges: A:K.274 SAH.3: 15 residues within 4Å: Chain B: C.193, G.217, G.218, G.219, N.223, D.240, L.241, V.244, G.259, D.260, M.261, F.262, K.274, A.275, W.280 9 PLIP interactions: 9 interactions with chain B Hydrogen bonds: B:G.217, B:N.223, B:L.241, B:D.260, B:M.261, B:K.274 Water bridges: B:K.274, B:N.279 Salt bridges: B:K.274

2 x HCC: 2',4,4'-TRIHYDROXYCHALCONE(Non-covalent)

HCC.2: 14 residues within 4Å: Chain A: L.132, F.135, F.138, F.185, M.189, V.192, H.278, F.307, L.325, L.328, T.332 Chain B: M.29, T.32, T.33 12 PLIP interactions: 10 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:F.135, A:F.138, A:F.185, A:V.192, A:V.192, A:F.307, A:L.325, A:L.328, B:T.33 Water bridges: A:H.278 pi-Stacking: A:F.135 Hydrogen bonds: B:T.32 HCC.4: 14 residues within 4Å: Chain A: M.29, T.32, T.33 Chain B: L.132, F.135, F.138, F.185, M.189, V.192, H.278, F.307, L.325, L.328, T.332 12 PLIP interactions: 10 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:F.135, B:F.138, B:F.185, B:V.192, B:V.192, B:F.307, B:L.325, B:L.328, A:T.33 Hydrogen bonds: B:T.332, A:T.32 pi-Stacking: B:F.135

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zubieta, C. et al., Structures of two natural product methyltransferases reveal the basis for substrate specificity in plant O-methyltransferases. Nat.Struct.Biol. (2001)

Release Date

2001-03-07

Peptides

ISOLIQUIRITIGENIN 2'-O-METHYLTRANSFERASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
D

ISOLIQUIRITIGENIN 2'-O-METHYLTRANSFERASE

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