SMTL ID : 3ath.1

Crystal structure of Pyrococcus horikoshii kynurenine aminotransferase in complex with four AKGs as substrates and allosteric effectors

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.69 Å

Oligo State

homo-dimer

Ligands

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

PLP.1: 16 residues within 4Å: Chain A: G.148, S.149, Q.150, Y.174, Y.221, V.223, N.228, D.256, P.258, Y.259, T.286, S.288, K.289, R.296 Chain B: Y.114 Ligands: AKG.3 16 PLIP interactions: 15 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:Y.174, A:V.223, A:P.258, A:K.289 Hydrogen bonds: A:S.149, A:Q.150, A:N.228, A:T.286, A:S.288, B:Y.114 Water bridges: A:Q.150, A:Y.174, A:T.286 Salt bridges: A:K.289, A:R.296 pi-Stacking: A:Y.174 PLP.4: 16 residues within 4Å: Chain A: Y.114 Chain B: G.148, S.149, Q.150, Y.174, Y.221, V.223, N.228, D.256, P.258, Y.259, T.286, S.288, K.289, R.296 Ligands: AKG.6 16 PLIP interactions: 16 interactions with chain B Hydrophobic interactions: B:Y.174, B:V.223, B:P.258, B:K.289 Hydrogen bonds: B:S.149, B:Q.150, B:N.228, B:Y.259, B:T.286, B:T.286, B:S.288 Water bridges: B:Q.150, B:F.287 Salt bridges: B:K.289, B:R.296 pi-Stacking: B:Y.174

4 x AKG: 2-OXOGLUTARIC ACID(Non-covalent)

AKG.2: 12 residues within 4Å: Chain A: Y.135, D.257, P.258, Y.259, G.260, E.261, L.262, Y.283, G.285, T.286, I.290, W.299 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:Y.135, A:Y.135, A:E.261, A:L.262, A:Y.283, A:T.286 AKG.3: 7 residues within 4Å: Chain A: R.67, G.84, Y.174, N.228, Y.259 Chain B: Y.114 Ligands: PLP.1 8 PLIP interactions: 7 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:Y.259 Water bridges: A:G.84, A:N.228, A:R.420 Salt bridges: A:R.67, A:K.289, A:R.420 Hydrophobic interactions: B:Y.114 AKG.5: 12 residues within 4Å: Chain B: Y.135, D.257, P.258, Y.259, G.260, E.261, L.262, Y.283, G.285, T.286, I.290, W.299 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:E.261, B:L.262, B:T.286 Water bridges: B:E.261 AKG.6: 7 residues within 4Å: Chain A: Y.114 Chain B: G.84, L.85, Y.174, N.228, Y.259 Ligands: PLP.4 9 PLIP interactions: 8 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:G.84, B:Y.174, B:N.228, B:Y.259 Water bridges: B:R.420, B:R.420 Salt bridges: B:K.289, B:R.420 Hydrophobic interactions: A:Y.114

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Okada, K. et al., Characterization of kynurenine aminotransferase from hyperthermophilic archaeon: enzymatic activity for conversion to kynurenic acid is allosterically regulated by alpha-ketoglutaric acid cooperatively with kynurenine. To be Published

Release Date

2012-01-18

Peptides

Putative uncharacterized protein PH0207: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
C

Putative uncharacterized protein PH0207

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