SMTL ID : 7lon.1 (2 other biounits)

Ornithine Aminotransferase (OAT) cocrystallized with its inactivator - (1S,3S)-3-amino-4-(difluoromethylene)cyclohexene-1-carboxylic acid

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

homo-dimer

Ligands

2 x THR: THREONINE(Covalent)

THR.1: 8 residues within 4Å: Chain A: S.49, K.257 Chain B: L.75, S.77, S.286, Y.288, G.289 Ligands: 7QP.2 3 PLIP interactions: 3 interactions with chain B Water bridges: B:R.78, B:Y.288, B:Y.288 THR.3: 8 residues within 4Å: Chain A: L.75, S.77, S.286, Y.288, G.289 Chain B: S.49, K.257 Ligands: 7QP.4 4 PLIP interactions: 3 interactions with chain A, 1 interactions with chain B Water bridges: A:R.78, A:Y.288, A:Y.288, B:Y.20

2 x 7QP: (1R,3S,4R)-3-[({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methyl)amino]-4-methylcyclohexane-1-carboxylic acid(Covalent)

7QP.2: 16 residues within 4Å: Chain A: Y.20, T.106, G.107, V.108, F.142, W.143, R.145, E.195, E.200, D.228, I.230, Q.231, K.257 Chain B: G.285, S.286 Ligands: THR.1 16 PLIP interactions: 12 interactions with chain A, 3 Ligand-Ligand interactions, 1 interactions with chain B Hydrophobic interactions: A:F.142, A:F.142, A:E.195, A:I.230, A:K.257, T.1 Hydrogen bonds: A:T.106, A:G.107, A:V.108, A:R.145, A:Q.231, T.1, T.1 Water bridges: A:T.106, B:Y.288 Salt bridges: A:K.257 7QP.4: 16 residues within 4Å: Chain A: G.285, S.286 Chain B: Y.20, T.106, G.107, V.108, F.142, W.143, R.145, E.195, E.200, D.228, I.230, Q.231, K.257 Ligands: THR.3 17 PLIP interactions: 13 interactions with chain B, 1 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: B:F.142, B:F.142, B:E.195, B:I.230, B:K.257, T.3 Hydrogen bonds: B:Y.20, B:T.106, B:T.106, B:G.107, B:V.108, B:R.145, B:Q.231, T.3, T.3 Salt bridges: B:K.257 Water bridges: A:Y.288

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhu, W. et al., Remarkable and Unexpected Mechanism for ( S )-3-Amino-4-(difluoromethylenyl)cyclohex-1-ene-1-carboxylic Acid as a Selective Inactivator of Human Ornithine Aminotransferase. J.Am.Chem.Soc. (2021)

Release Date

2021-08-25

Peptides

Ornithine aminotransferase, mitochondrial: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

Ornithine aminotransferase, mitochondrial

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