SMTL ID : 1zg3.1

Crystal structure of the isoflavanone 4'-O-methyltransferase complexed with SAH and 2,7,4'-trihydroxyisoflavanone

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.35 Å

Oligo State

homo-dimer

Ligands

2 x 2HI: (2S,3R)-2,7-DIHYDROXY-3-(4-HYDROXYPHENYL)-2,3-DIHYDRO-4H-CHROMEN-4-ONE(Non-covalent)

2HI.1: 13 residues within 4Å: Chain A: I.116, G.119, A.120, S.125, M.168, F.169, A.172, M.173, Y.312, M.316, M.319, F.320 Chain B: Y.19 5 PLIP interactions: 4 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:A.172, A:Y.312, A:F.320 pi-Stacking: A:F.169 Hydrogen bonds: B:Y.19 2HI.3: 13 residues within 4Å: Chain A: Y.19 Chain B: I.116, G.119, A.120, S.125, M.168, F.169, A.172, M.173, Y.312, M.316, M.319, F.320 5 PLIP interactions: 4 interactions with chain B, 1 interactions with chain A Hydrophobic interactions: B:A.172, B:Y.312, B:F.320 pi-Stacking: B:F.169 Hydrogen bonds: A:Y.19

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

SAH.2: 12 residues within 4Å: Chain A: V.200, G.201, V.207, D.224, Q.225, V.228, G.243, D.244, M.245, F.246, K.258, W.259 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:G.201, A:Q.225, A:D.244, A:D.244, A:M.245, A:K.258 Water bridges: A:Q.225, A:K.258 Salt bridges: A:K.258 SAH.4: 12 residues within 4Å: Chain B: V.200, G.201, V.207, D.224, Q.225, V.228, G.243, D.244, M.245, F.246, K.258, W.259 8 PLIP interactions: 8 interactions with chain B Hydrogen bonds: B:G.201, B:Q.225, B:D.244, B:M.245, B:K.258 Water bridges: B:Q.225, B:K.258 Salt bridges: B:K.258

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