SMTL ID : 1ybh.2 (1 other biounit)

Crystal structure of Arabidopsis thaliana Acetohydroxyacid synthase In Complex With A Sulfonylurea Herbicide Chlorimuron Ethyl

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-dimer

Ligands

2 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 5 residues within 4Å: Chain A: D.453, N.480, H.482, G.484 Ligands: P22.5 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.453, A:H.482, H2O.6 MG.6: 5 residues within 4Å: Chain B: D.453, N.480, H.482, G.484 Ligands: P22.10 3 PLIP interactions: 2 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.453, B:H.482, H2O.17

2 x CIE: 2-[[[[(4-CHLORO-6-METHOXY-2-PYRIMIDINYL)AMINO]CARBONYL]AMINO]SULFONYL]BENZOIC ACID ETHYL ESTER(Non-covalent)

CIE.2: 16 residues within 4Å: Chain A: M.266, D.291, R.292, M.485, W.489, S.568 Chain B: G.36, A.37, V.111, P.112, M.115, A.120, F.121, Q.122, K.171 Ligands: FAD.4 11 PLIP interactions: 5 interactions with chain B, 6 interactions with chain A Hydrophobic interactions: B:V.111, B:A.120, B:F.121, B:F.121 Hydrogen bonds: B:K.171, A:R.292, A:R.292, A:S.568 pi-Stacking: A:W.489, A:W.489 pi-Cation interactions: A:R.292 CIE.7: 16 residues within 4Å: Chain A: G.36, A.37, V.111, P.112, M.115, A.120, F.121, Q.122, K.171 Chain B: M.266, D.291, R.292, M.485, W.489, S.568 Ligands: FAD.9 11 PLIP interactions: 5 interactions with chain A, 6 interactions with chain B Hydrophobic interactions: A:V.111, A:A.120, A:F.121, A:F.121 Hydrogen bonds: A:K.171, B:R.292, B:R.292, B:S.568 pi-Stacking: B:W.489, B:W.489 pi-Cation interactions: B:R.292

2 x NHE: 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID(Non-covalent)

NHE.3: 7 residues within 4Å: Chain A: K.135, H.136, L.156, L.188, P.189, G.190, Y.191 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:L.156, A:L.156, A:Y.191 Hydrogen bonds: A:G.190, A:Y.191 Water bridges: A:H.136 NHE.8: 7 residues within 4Å: Chain B: K.135, H.136, L.156, L.188, P.189, G.190, Y.191 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:L.156, B:L.156, B:Y.191 Hydrogen bonds: B:G.190, B:Y.191 Water bridges: B:H.136

2 x FAD: FLAVIN-ADENINE DINUCLEOTIDE(Non-covalent)

FAD.4: 37 residues within 4Å: Chain A: D.100, R.161, G.222, G.223, G.224, T.246, L.247, M.248, M.263, L.264, G.265, M.266, H.267, G.268, G.286, V.287, R.288, D.290, R.292, V.293, I.309, D.310, I.311, D.312, E.315, G.328, D.329, V.330, V.400, Q.404, M.405, S.422, G.423, G.424, G.426 Chain B: F.121 Ligands: CIE.2 25 PLIP interactions: 23 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:L.247, A:V.400, B:F.121 Hydrogen bonds: A:R.161, A:G.223, A:G.224, A:L.247, A:L.264, A:H.267, A:V.287, A:R.288, A:R.288, A:D.290, A:I.311, A:D.329, A:D.329, A:V.330, A:G.423 Water bridges: A:L.99, A:D.100, A:Y.220, A:D.290, A:G.424 Salt bridges: A:R.288 pi-Stacking: B:F.121 FAD.9: 37 residues within 4Å: Chain A: F.121 Chain B: D.100, R.161, G.222, G.223, G.224, T.246, L.247, M.248, M.263, L.264, G.265, M.266, H.267, G.268, G.286, V.287, R.288, D.290, R.292, V.293, I.309, D.310, I.311, D.312, E.315, G.328, D.329, V.330, V.400, Q.404, M.405, S.422, G.423, G.424, G.426 Ligands: CIE.7 24 PLIP interactions: 22 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:L.247, B:V.400, A:F.121 Hydrogen bonds: B:R.161, B:G.223, B:G.224, B:T.246, B:L.247, B:L.264, B:H.267, B:V.287, B:R.288, B:R.288, B:I.311, B:D.329, B:V.330, B:G.423 Water bridges: B:L.99, B:D.100, B:Y.220, B:D.290, B:G.424 Salt bridges: B:R.288 pi-Stacking: A:F.121

2 x P22: ETHYL DIHYDROGEN DIPHOSPHATE(Non-covalent)

P22.5: 15 residues within 4Å: Chain A: V.400, G.401, Q.402, H.403, M.428, G.452, D.453, G.454, S.455, N.480, H.482, L.483, G.484, M.485 Ligands: MG.1 12 PLIP interactions: 12 interactions with chain A Hydrogen bonds: A:Q.402, A:H.403, A:G.454, A:S.455, A:N.480, A:H.482, A:G.484, A:M.485 Water bridges: A:D.453, A:N.480 Salt bridges: A:H.403, A:H.403 P22.10: 15 residues within 4Å: Chain B: V.400, G.401, Q.402, H.403, M.428, G.452, D.453, G.454, S.455, N.480, H.482, L.483, G.484, M.485 Ligands: MG.6 11 PLIP interactions: 11 interactions with chain B Hydrogen bonds: B:Q.402, B:H.403, B:G.454, B:S.455, B:H.482, B:G.484, B:M.485 Water bridges: B:D.453, B:N.480 Salt bridges: B:H.403, B:H.403

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

McCourt, J.A. et al., Herbicide-binding sites revealed in the structure of plant acetohydroxyacid synthase. Proc.Natl.Acad.Sci.Usa (2006)

Release Date

2006-01-10

Peptides

Acetolactate synthase, chloroplast: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Acetolactate synthase, chloroplast

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