SMTL ID : 8e9k.1

Crystal structure of wild-type E. coli aspartate aminotransferase bound to maleate at 278 K

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.83 Å

Oligo State

homo-dimer

Ligands

2 x PLP: PYRIDOXAL-5'-PHOSPHATE(Covalent)

PLP.1: 18 residues within 4Å: Chain A: G.112, G.113, T.114, L.117, W.140, H.143, H.188, N.193, D.221, A.223, Y.224, S.253, S.255, K.256, R.264 Chain B: Y.75, S.294 Ligands: MAE.2 18 PLIP interactions: 16 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:W.140, A:N.193, A:A.223, A:K.256 Hydrogen bonds: A:G.113, A:T.114, A:T.114, A:T.114, A:N.193, A:S.253, A:S.253, A:S.255, A:K.256, B:Y.75 Water bridges: A:R.264, B:S.294 Salt bridges: A:K.256, A:R.264 PLP.3: 17 residues within 4Å: Chain A: Y.75 Chain B: G.112, G.113, T.114, L.117, W.140, H.143, H.188, N.193, D.221, A.223, Y.224, S.253, S.255, K.256, R.264 Ligands: MAE.4 18 PLIP interactions: 15 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:W.140, B:N.193, B:A.223, B:K.256 Hydrogen bonds: B:G.113, B:T.114, B:T.114, B:N.193, B:Y.224, B:Y.224, B:S.253, B:S.255, A:Y.75, A:Y.75 Water bridges: B:R.264, A:S.294 Salt bridges: B:K.256, B:R.264

2 x MAE: MALEIC ACID(Non-covalent)

MAE.2: 14 residues within 4Å: Chain A: I.23, L.24, I.43, G.44, W.140, N.193, Y.224, K.256, F.358, R.384 Chain B: Y.75, R.290, S.294 Ligands: PLP.1 7 PLIP interactions: 5 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:G.44, A:W.140, A:N.193 Salt bridges: A:K.256, A:R.384, B:R.290 Water bridges: B:Y.75 MAE.4: 14 residues within 4Å: Chain A: Y.75, R.290, S.294 Chain B: I.23, L.24, I.43, G.44, W.140, N.193, Y.224, K.256, F.358, R.384 Ligands: PLP.3 7 PLIP interactions: 2 interactions with chain A, 5 interactions with chain B Water bridges: A:S.294 Salt bridges: A:R.290, B:K.256, B:R.384 Hydrogen bonds: B:G.44, B:W.140, B:N.193

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

St-Jacques, A.D. et al., Computational remodeling of an enzyme conformational landscape for altered substrate selectivity. Nat Commun (2023)

Release Date

2022-10-05

Peptides

Aspartate aminotransferase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Aspartate aminotransferase

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