SMTL ID : 6bd3.1

Saccharomyces cerevisiae acetohydroxyacid synthase

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.28 Å

Oligo State

homo-dimer

Ligands

2 x K: POTASSIUM ION(Non-covalent)

K.1: 4 residues within 4Å: Chain A: Q.333, D.340, Q.496, W.498 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:Q.496, A:W.498, H2O.1, H2O.4 K.8: 4 residues within 4Å: Chain B: Q.333, D.340, Q.496, W.498 3 PLIP interactions: 2 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:Q.496, B:W.498, H2O.10

2 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 3 residues within 4Å: Chain A: D.540, N.567 Ligands: TPP.3 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:D.540, H2O.2, H2O.4 MG.9: 4 residues within 4Å: Chain B: D.540, N.567 Ligands: HTL.10, OXY.15 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:D.540, H2O.9, H2O.11

1 x TPP: THIAMINE DIPHOSPHATE(Non-covalent)

TPP.3: 22 residues within 4Å: Chain A: V.487, G.488, Q.489, H.490, G.513, M.515, G.539, D.540, A.541, S.542, M.545, N.567 Chain B: Y.103, P.104, G.105, E.129, T.152, P.155, N.159, Q.192 Ligands: MG.2, ACT.19 16 PLIP interactions: 3 interactions with chain B, 13 interactions with chain A Hydrophobic interactions: B:Y.103, B:P.155 Water bridges: B:E.129, A:D.540, A:D.540 Hydrogen bonds: A:Q.489, A:Q.489, A:H.490, A:G.513, A:M.515, A:D.540, A:A.541, A:S.542, A:N.567 Salt bridges: A:H.490, A:H.490

8 x OXY: OXYGEN MOLECULE(Non-covalent)

OXY.4: 6 residues within 4Å: Chain A: A.541, N.544, Q.590 Chain B: Y.103, K.127 Ligands: OXY.13 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:Y.103, A:N.544, A:Q.590 Water bridges: B:Y.103 OXY.5: 7 residues within 4Å: Chain A: G.105, G.106, A.107, T.152, S.153, Q.192 Ligands: CO2.6 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:A.107, A:T.152, A:T.152, A:S.153 Water bridges: A:G.106, A:G.106 OXY.11: 5 residues within 4Å: Chain A: G.105, G.106 Chain B: M.572 Ligands: CO2.6, HTL.10 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:G.106 OXY.12: 5 residues within 4Å: Chain B: E.568, Q.570, T.588, H.589, Q.590 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Q.570, B:Q.590, B:Q.590 OXY.13: 3 residues within 4Å: Chain A: Q.590 Chain B: Y.103 Ligands: OXY.4 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:Y.103 OXY.14: 4 residues within 4Å: Chain B: E.568, Q.590, L.591, N.592 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:E.568, B:Q.590, B:N.592 OXY.15: 7 residues within 4Å: Chain B: Q.489, N.567, Q.570, G.571, M.572 Ligands: MG.9, HTL.10 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Q.489, B:G.571 OXY.16: 7 residues within 4Å: Chain B: G.105, G.106, A.107, T.152, S.153, Q.192 Ligands: ACT.19 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:A.107, B:T.152, B:S.153, B:S.153, B:Q.192

1 x CO2: CARBON DIOXIDE(Non-covalent)

CO2.6: 6 residues within 4Å: Chain A: G.105, G.106, Q.192 Ligands: OXY.5, HTL.10, OXY.11 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.106 Water bridges: A:A.107

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

FAD.7: 30 residues within 4Å: Chain A: R.231, G.297, A.298, G.299, N.302, T.324, L.325, Q.326, M.341, L.342, G.343, M.344, H.345, G.346, G.364, A.365, R.366, D.368, R.370, V.371, F.396, E.397, V.398, S.399, N.402, G.415, D.416, A.417, M.492 Chain B: F.191 25 PLIP interactions: 24 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:R.370, B:F.191 Hydrogen bonds: A:A.298, A:N.302, A:T.324, A:L.325, A:L.342, A:H.345, A:R.366, A:R.366, A:V.398, A:N.402, A:D.416, A:A.417 Water bridges: A:D.170, A:R.231, A:R.231, A:G.364, A:R.366, A:F.367, A:E.397, A:T.418, A:G.510 Salt bridges: A:R.231, A:R.366 FAD.18: 31 residues within 4Å: Chain A: F.191 Chain B: D.170, R.231, G.297, A.298, G.299, N.302, T.324, L.325, Q.326, L.342, G.343, M.344, H.345, G.364, A.365, R.366, D.368, R.370, V.371, E.397, V.398, N.402, G.415, D.416, A.417, Q.491, M.492, S.509, G.510, G.511 27 PLIP interactions: 26 interactions with chain B, 1 interactions with chain A Hydrophobic interactions: B:L.325, A:F.191 Hydrogen bonds: B:A.298, B:N.302, B:T.324, B:L.325, B:L.342, B:M.344, B:H.345, B:H.345, B:R.366, B:R.370, B:V.398, B:N.402, B:D.416, B:D.416, B:A.417, B:G.510 Water bridges: B:D.170, B:D.170, B:R.231, B:R.231, B:Q.326, B:G.364, B:R.366 Salt bridges: B:R.231, B:R.366

1 x HTL: 2-ACETYL-THIAMINE DIPHOSPHATE(Non-covalent)

HTL.10: 24 residues within 4Å: Chain A: Y.103, P.104, G.105, E.129, T.152, P.155, N.159, Q.192 Chain B: V.487, G.488, Q.489, H.490, G.513, M.515, G.539, D.540, A.541, S.542, M.545, N.567 Ligands: CO2.6, MG.9, OXY.11, OXY.15 13 PLIP interactions: 10 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:V.487, B:Q.489, B:H.490, B:G.513, B:M.515, B:D.540, B:A.541, B:S.542, A:Q.192 Salt bridges: B:H.490, B:H.490 Hydrophobic interactions: A:Y.103, A:P.155

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.17: 4 residues within 4Å: Chain A: H.116 Chain B: H.587, T.588, H.589 4 PLIP interactions: 1 interactions with chain A, 3 interactions with chain B Salt bridges: A:H.116, B:H.589 Hydrogen bonds: B:T.588, B:H.589

1 x ACT: ACETATE ION(Non-functional Binders)

ACT.19: 4 residues within 4Å: Chain B: G.106, Q.192 Ligands: TPP.3, OXY.16 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:G.106, B:Q.192, B:Q.192

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lonhienne, T. et al., High resolution crystal structures of the acetohydroxyacid synthase-pyruvate complex provide new insights into its catalytic mechanism. Chemistryselect (2017)

Release Date

2017-11-08

Peptides

Acetolactate synthase catalytic subunit, mitochondrial: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Acetolactate synthase catalytic subunit, mitochondrial

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