SMTL ID : 3mi3.1

Homocitrate Synthase Lys4 bound to Lysine

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.38 Å

Oligo State

homo-dimer

Ligands

2 x LYS: LYSINE(Non-covalent)

LYS.1: 12 residues within 4Å: Chain A: R.48, E.49, Q.52, D.128, S.170, A.200, T.202, E.227, H.229, H.231 Chain B: I.330 Ligands: ZN.2 12 PLIP interactions: 1 Ligand-Ligand interactions, 11 interactions with chain A Water bridges: K.1, A:R.48, A:E.49, A:D.128, A:R.168 Hydrophobic interactions: A:A.200 Hydrogen bonds: A:Q.52, A:S.170, A:S.170, A:E.227 Salt bridges: A:H.229, A:H.231 LYS.4: 12 residues within 4Å: Chain A: I.330 Chain B: R.48, E.49, Q.52, D.128, S.170, A.200, T.202, E.227, H.229, H.231 Ligands: ZN.5 11 PLIP interactions: 10 interactions with chain B, 1 Ligand-Ligand interactions Hydrogen bonds: B:Q.52, B:R.168, B:S.170, B:S.170 Water bridges: B:R.48, B:R.48, B:Q.52, B:R.262, K.4 Salt bridges: B:H.229, B:H.231

2 x ZN: ZINC ION(Non-covalent)

ZN.2: 4 residues within 4Å: Chain A: E.49, H.229, H.231 Ligands: LYS.1 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Ligand interactions Metal complexes: A:E.49, A:H.229, A:H.231, LYS.1 ZN.5: 5 residues within 4Å: Chain B: E.49, H.229, H.231, I.265 Ligands: LYS.4 4 PLIP interactions: 3 interactions with chain B, 1 Ligand-Ligand interactions Metal complexes: B:E.49, B:H.229, B:H.231, LYS.4

2 x NA: SODIUM ION(Non-functional Binders)

NA.3: 3 residues within 4Å: Chain A: R.219, G.220, V.222 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:G.220 NA.6: 3 residues within 4Å: Chain B: R.219, G.220, V.222 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:V.222

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Bulfer, S.L. et al., Structural Basis for L-lysine Feedback Inhibition of Homocitrate Synthase. J.Biol.Chem. (2010)

Release Date

2010-04-28

Peptides

Homocitrate synthase, mitochondrial: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Homocitrate synthase, mitochondrial

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