SMTL ID : 1jsc.1

Crystal Structure of the Catalytic Subunit of Yeast Acetohydroxyacid Synthase: A target for Herbicidal Inhibitors

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.60 Å

Oligo State

homo-dimer

Ligands

2 x K: POTASSIUM ION(Non-covalent)

K.1: 4 residues within 4Å: Chain A: Q.286, D.293, Q.449, W.451 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:Q.449, A:W.451, H2O.2, H2O.8, H2O.8 K.6: 5 residues within 4Å: Chain B: Q.286, D.293, A.448, Q.449, W.451 5 PLIP interactions: 2 interactions with chain B, 3 Ligand-Water interactions Metal complexes: B:Q.449, B:W.451, H2O.10, H2O.13, H2O.13

2 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 3 residues within 4Å: Chain A: D.493, N.520 Ligands: TPP.4 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:D.493, H2O.2, H2O.3 MG.7: 3 residues within 4Å: Chain B: D.493, N.520 Ligands: TPP.10 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:D.493, H2O.9, H2O.10

3 x 2HP: DIHYDROGENPHOSPHATE ION(Non-covalent)

2HP.3: 6 residues within 4Å: Chain A: G.58, G.59, T.105, F.144, Q.145 Ligands: TPP.10 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:G.59, A:Q.145, A:Q.145 Water bridges: A:A.60, A:A.60 2HP.8: 4 residues within 4Å: Chain A: H.69 Chain B: H.540, T.541, H.542 4 PLIP interactions: 3 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:T.541, B:H.542 Salt bridges: B:H.542, A:H.69 2HP.9: 5 residues within 4Å: Chain B: G.58, G.59, F.144, Q.145 Ligands: TPP.4 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:G.59, B:Q.145, B:Q.145 Water bridges: B:A.60, B:A.60

2 x TPP: THIAMINE DIPHOSPHATE(Non-covalent)

TPP.4: 22 residues within 4Å: Chain A: V.440, G.441, Q.442, H.443, G.466, M.468, G.492, D.493, A.494, S.495, M.498, N.520 Chain B: Y.56, P.57, G.58, E.82, T.105, P.108, N.112, Q.145 Ligands: MG.2, 2HP.9 17 PLIP interactions: 3 interactions with chain B, 14 interactions with chain A Hydrophobic interactions: B:Y.56, B:P.108 Hydrogen bonds: B:Q.145, A:Q.442, A:Q.442, A:H.443, A:G.466, A:M.468, A:A.494, A:S.495, A:N.520 Water bridges: A:D.493, A:D.493, A:D.493, A:N.520 Salt bridges: A:H.443, A:H.443 TPP.10: 22 residues within 4Å: Chain A: Y.56, P.57, G.58, E.82, T.105, P.108, N.112, Q.145 Chain B: V.440, G.441, Q.442, H.443, G.466, M.468, G.492, D.493, A.494, S.495, M.498, N.520 Ligands: 2HP.3, MG.7 17 PLIP interactions: 13 interactions with chain B, 4 interactions with chain A Hydrogen bonds: B:Q.442, B:Q.442, B:H.443, B:G.466, B:M.468, B:A.494, B:S.495, B:N.520, A:Q.145 Water bridges: B:D.493, B:D.493, B:Q.543, A:E.82 Salt bridges: B:H.443, B:H.443 Hydrophobic interactions: A:Y.56, A:P.108

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

FAD.5: 31 residues within 4Å: Chain A: R.184, G.250, A.251, G.252, N.255, T.277, L.278, Q.279, M.294, L.295, G.296, M.297, H.298, G.299, G.317, A.318, R.319, D.321, R.323, V.324, F.349, E.350, V.351, S.352, N.355, G.368, D.369, A.370, M.445, G.463 Chain B: F.144 26 PLIP interactions: 25 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:R.323, B:F.144 Hydrogen bonds: A:A.251, A:G.252, A:N.255, A:T.277, A:T.277, A:L.278, A:L.295, A:H.298, A:R.319, A:V.351, A:N.355, A:D.369, A:D.369, A:A.370, A:G.463 Water bridges: A:R.184, A:R.184, A:G.317, A:G.317, A:F.320, A:R.323, A:T.371 Salt bridges: A:R.184, A:R.319 FAD.11: 32 residues within 4Å: Chain A: F.144 Chain B: R.184, G.250, A.251, G.252, N.255, T.277, L.278, Q.279, M.294, L.295, G.296, M.297, H.298, G.299, G.317, A.318, R.319, D.321, R.323, V.324, F.349, E.350, V.351, S.352, N.355, G.368, D.369, A.370, M.445, G.463, G.464 24 PLIP interactions: 1 interactions with chain A, 23 interactions with chain B Hydrophobic interactions: A:F.144 Hydrogen bonds: B:R.184, B:A.251, B:N.255, B:T.277, B:T.277, B:L.278, B:L.295, B:H.298, B:A.318, B:R.319, B:V.351, B:N.355, B:D.369, B:A.370, B:G.463 Water bridges: B:R.184, B:R.184, B:G.317, B:G.317, B:R.319, B:T.371 Salt bridges: B:R.184, B:R.319

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Pang, S.S. et al., Crystal structure of yeast acetohydroxyacid synthase: a target for herbicidal inhibitors. J.Mol.Biol. (2002)

Release Date

2002-01-16

Peptides

ACETOHYDROXY-ACID SYNTHASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

ACETOHYDROXY-ACID SYNTHASE