SMTL ID : 6lpi.1 (3 other biounits)

Crystal Structure of AHAS holo-enzyme

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.85 Å

Oligo State

hetero-1-1-mer

Ligands

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

FAD.1: 32 residues within 4Å: Chain B: L.100, R.162, G.219, G.220, G.221, T.243, L.244, M.245, M.260, L.261, G.262, M.263, H.264, G.265, G.283, A.284, R.285, D.287, R.289, A.290, V.306, D.307, I.308, D.309, E.312, A.325, D.326, V.327, M.396, G.414, G.415, G.417 24 PLIP interactions: 24 interactions with chain B Hydrophobic interactions: B:L.244 Hydrogen bonds: B:R.162, B:R.162, B:G.220, B:G.221, B:T.243, B:T.243, B:L.244, B:L.261, B:M.263, B:H.264, B:G.265, B:R.285, B:R.285, B:R.289, B:I.308, B:D.309, B:D.326, B:D.326, B:V.327, B:G.414 Salt bridges: B:R.285, B:R.285 pi-Cation interactions: B:R.289

1 x TPP: THIAMINE DIPHOSPHATE(Non-covalent)

TPP.2: 18 residues within 4Å: Chain B: V.391, G.392, Q.393, H.394, G.417, M.419, G.443, D.444, G.445, S.446, M.449, N.471, A.473, L.474, G.475, L.476, V.477 Ligands: MG.3 13 PLIP interactions: 13 interactions with chain B Hydrophobic interactions: B:L.474, B:L.474, B:V.477 Hydrogen bonds: B:Q.393, B:H.394, B:G.417, B:M.419, B:G.445, B:S.446, B:N.471, B:L.476 Salt bridges: B:H.394, B:H.394

1 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 7 residues within 4Å: Chain B: G.443, D.444, M.469, N.471, A.473, L.474 Ligands: TPP.2 1 PLIP interactions: 1 interactions with chain B Metal complexes: B:D.444

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhang, Y. et al., Molecular architecture of the acetohydroxyacid synthase holoenzyme. Biochem.J. (2020)

Release Date

2020-11-18

Peptides

Acetolactate synthase isozyme 1 small subunit: A
Acetolactate synthase isozyme 1 large subunit: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
A

Acetolactate synthase isozyme 1 small subunit

Acetolactate synthase isozyme 1 large subunit

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