SMTL ID : 1zga.1

Crystal structure of isoflavanone 4'-O-methyltransferase complexed with (+)-6a-hydroxymaackiain

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.35 Å

Oligo State

homo-dimer

Ligands

2 x HMK: (6AR,12AR)-6H-[1,3]DIOXOLO[5,6][1]BENZOFURO[3,2-C]CHROMENE-3,6A(12AH)-DIOL(Non-covalent)

HMK.1: 13 residues within 4Å: Chain A: G.118, A.119, S.123, S.124, F.152, M.167, F.168, A.171, D.175, Y.311, M.315, M.318 Chain B: Y.18 6 PLIP interactions: 1 interactions with chain B, 5 interactions with chain A Hydrogen bonds: B:Y.18 Hydrophobic interactions: A:A.171, A:D.175 Water bridges: A:S.124 pi-Stacking: A:F.168, A:F.168 HMK.3: 13 residues within 4Å: Chain A: Y.18 Chain B: G.118, A.119, S.123, S.124, F.152, M.167, F.168, A.171, D.175, Y.311, M.315, M.318 8 PLIP interactions: 6 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:A.171, B:D.175 Hydrogen bonds: B:D.175, A:Y.18, A:Y.18 Water bridges: B:S.124 pi-Stacking: B:F.168, B:F.168

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

SAH.2: 13 residues within 4Å: Chain A: V.199, G.200, V.206, D.223, Q.224, V.227, G.242, D.243, M.244, F.245, K.257, W.258, V.259 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:W.258 Hydrogen bonds: A:G.200, A:Q.224, A:Q.224, A:D.243, A:D.243, A:M.244, A:K.257 Water bridges: A:K.257 Salt bridges: A:K.257 SAH.4: 13 residues within 4Å: Chain B: V.199, G.200, V.206, D.223, Q.224, V.227, G.242, D.243, M.244, F.245, K.257, W.258, V.259 9 PLIP interactions: 9 interactions with chain B Hydrophobic interactions: B:W.258 Hydrogen bonds: B:G.200, B:Q.224, B:Q.224, B:D.243, B:M.244, B:K.257 Water bridges: B:K.257 Salt bridges: B:K.257

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, C.J. et al., Structural basis for dual functionality of isoflavonoid O-methyltransferases in the evolution of plant defense responses. Plant Cell (2006)

Release Date

2006-08-01

Peptides

Isoflavanone 4'-O-methyltransferase': AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Isoflavanone 4'-O-methyltransferase'

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