SMTL ID : 1asm.1

CRYSTAL STRUCTURES OF ESCHERICHIA COLI ASPARTATE AMINOTRANSFERASE IN TWO CONFORMATIONS: COMPARISON OF AN UNLIGANDED OPEN AND TWO LIGANDED CLOSED FORMS

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.35 Å

Oligo State

homo-dimer

Ligands

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

PLP.1: 14 residues within 4Å: Chain A: G.102, G.103, T.104, W.130, N.183, D.211, A.213, Y.214, S.243, S.245, K.246, R.254 Chain B: Y.65 Ligands: MAE.2 17 PLIP interactions: 15 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:N.183, A:A.213, A:K.246 Hydrogen bonds: A:G.103, A:T.104, A:T.104, A:T.104, A:N.183, A:S.243, A:S.243, A:S.245 Salt bridges: A:K.246, A:R.254 pi-Stacking: A:W.130, A:W.130 Water bridges: B:S.284, B:N.285 PLP.3: 15 residues within 4Å: Chain A: Y.65 Chain B: G.102, G.103, T.104, W.130, H.178, N.183, D.211, A.213, Y.214, S.243, S.245, K.246, R.254 Ligands: MAE.4 15 PLIP interactions: 13 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:N.183, B:A.213, B:K.246 Hydrogen bonds: B:G.103, B:T.104, B:T.104, B:N.183, B:S.243, B:S.245 Salt bridges: B:K.246, B:R.254 pi-Stacking: B:W.130, B:W.130 Water bridges: A:Y.65, A:S.284

2 x MAE: MALEIC ACID(Non-covalent)

MAE.2: 11 residues within 4Å: Chain A: I.13, L.14, I.33, G.34, W.130, N.183, K.246, R.374 Chain B: Y.65, R.280 Ligands: PLP.1 7 PLIP interactions: 4 interactions with chain A, 3 interactions with chain B Hydrogen bonds: A:G.34, A:W.130, A:N.183, B:S.284, B:S.284 Salt bridges: A:R.374, B:R.280 MAE.4: 11 residues within 4Å: Chain A: R.280 Chain B: I.13, L.14, I.33, G.34, W.130, N.183, K.246, F.348, R.374 Ligands: PLP.3 7 PLIP interactions: 4 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:G.34, B:N.183 Salt bridges: B:K.246, B:R.374, A:R.280 Water bridges: A:Y.65, A:S.284

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Jager, J. et al., Crystal structures of Escherichia coli aspartate aminotransferase in two conformations. Comparison of an unliganded open and two liganded closed forms. J.Mol.Biol. (1994)

Release Date

1994-01-31

Peptides

ASPARTATE AMINOTRANSFERASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

ASPARTATE AMINOTRANSFERASE

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