SMTL ID : 3av7.1

Crystal structure of Pyrococcus horikoshii kynurenine aminotransferase in complex with PMP, KYN as substrates and KYA as products

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.84 Å

Oligo State

homo-dimer

Ligands

2 x PMP: 4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE(Covalent)

PMP.1: 15 residues within 4Å: Chain A: G.148, S.149, Q.150, Y.174, V.223, N.228, D.256, P.258, Y.259, T.286, S.288, K.289, R.296 Chain B: Y.114, L.319 14 PLIP interactions: 12 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:Y.174, A:V.223, A:P.258 Hydrogen bonds: A:S.149, A:S.149, A:Q.150, A:N.228, A:S.288, B:Y.114, B:Y.114 Water bridges: A:Y.259 Salt bridges: A:K.289, A:R.296 pi-Stacking: A:Y.174 PMP.4: 15 residues within 4Å: Chain A: Y.114, L.319 Chain B: G.148, S.149, Q.150, Y.174, V.223, N.228, D.256, P.258, Y.259, T.286, S.288, K.289, R.296 14 PLIP interactions: 13 interactions with chain B, 1 interactions with chain A Hydrophobic interactions: B:Y.174, B:V.223, B:P.258 Hydrogen bonds: B:S.149, B:Q.150, B:N.228, B:Y.259, B:T.286, B:S.288, B:S.288, A:Y.114 Salt bridges: B:K.289, B:R.296 pi-Stacking: B:Y.174

2 x KYN: (2S)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid(Non-covalent)

KYN.2: 9 residues within 4Å: Chain A: R.67, G.84, Y.174, L.175, A.176, Q.179, N.228, R.420 Ligands: KYA.3 14 PLIP interactions: 14 interactions with chain A Hydrophobic interactions: A:R.67, A:Y.174, A:L.175, A:L.175 Hydrogen bonds: A:R.67, A:G.84, A:A.176, A:Q.179, A:N.228, A:R.420, A:R.420 Water bridges: A:R.67, A:G.84 Salt bridges: A:R.420 KYN.5: 10 residues within 4Å: Chain A: Y.114, L.319 Chain B: G.84, L.85, Y.174, L.175, A.176, N.228, F.409, R.420 13 PLIP interactions: 11 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:L.85, A:Y.114, A:L.319 Hydrogen bonds: B:G.84, B:A.176, B:N.228, B:R.420, B:R.420 Water bridges: B:Y.174, B:Y.174, B:Y.259, B:Y.259 Salt bridges: B:R.420

2 x KYA: 4-hydroxyquinoline-2-carboxylic acid(Non-covalent)

KYA.3: 10 residues within 4Å: Chain A: S.64, V.66, R.67, L.175, Q.179, K.390, V.404, A.408, R.413 Ligands: KYN.2 11 PLIP interactions: 11 interactions with chain A Hydrophobic interactions: A:V.66, A:R.67, A:L.175, A:A.408 Hydrogen bonds: A:S.64, A:S.64, A:V.66, A:R.413 Water bridges: A:A.408 Salt bridges: A:K.390, A:R.413 KYA.6: 8 residues within 4Å: Chain B: S.64, V.66, R.67, L.175, Q.179, V.404, A.408, R.413 9 PLIP interactions: 9 interactions with chain B Hydrophobic interactions: B:V.66, B:V.66, B:R.67, B:L.175, B:A.408 Hydrogen bonds: B:S.64, B:Q.179 Water bridges: B:P.405 Salt bridges: B:R.67

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Okada, K. et al., Structural insight into kynurenic acid excretion mechanisms of kynurenine aminotransferase in the hyperthermophilic archaeon Pyrococcus horikoshii. To be Published

Release Date

2012-03-07

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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