SMTL ID : 1va6.2 (1 other biounit)

Crystal structure of Gamma-glutamylcysteine synthetase from Escherichia Coli B complexed with Transition-state analogue

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

monomer

Ligands

4 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 5 residues within 4Å: Chain A: E.29, D.60, E.67 Ligands: MG.3, P2S.5 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.29, A:D.60, A:E.67, H2O.6 MG.2: 6 residues within 4Å: Chain A: E.27, H.150, E.328 Ligands: MG.3, P2S.5, ADP.6 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:E.27, A:E.27, A:H.150, A:E.328 MG.3: 6 residues within 4Å: Chain A: E.27, E.67 Ligands: MG.1, MG.2, P2S.5, ADP.6 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.27, A:E.67, H2O.6 MG.4: 1 residues within 4Å: Chain A: D.408 5 PLIP interactions: 1 interactions with chain A, 4 Ligand-Water interactions Metal complexes: A:D.408, H2O.6, H2O.6, H2O.6, H2O.6

1 x P2S: (2S)-2-AMINO-4-[[(2R)-2-CARBOXYBUTYL](PHOSPHONO)SULFONIMIDOYL]BUTANOIC ACID(Non-covalent)

P2S.5: 23 residues within 4Å: Chain A: E.27, E.29, D.60, E.67, Y.131, L.135, Q.144, I.146, S.147, G.148, H.150, R.235, Y.241, N.297, Y.300, R.304, E.328, R.330 Ligands: MG.1, MG.2, MG.3, ADP.6, P6G.7 16 PLIP interactions: 16 interactions with chain A Hydrophobic interactions: A:Y.131, A:L.135 Hydrogen bonds: A:E.29, A:Y.131, A:I.146, A:Y.300, A:Y.300, A:R.304, A:R.330, A:R.330 Water bridges: A:D.60, A:E.67, A:E.67, A:N.297 Salt bridges: A:H.150, A:R.235

1 x ADP: ADENOSINE-5'-DIPHOSPHATE(Non-covalent)

ADP.6: 21 residues within 4Å: Chain A: Q.23, R.24, G.25, L.26, E.27, E.67, I.69, T.70, P.71, V.72, N.152, F.153, S.154, K.306, V.308, E.325, Y.326, E.328 Ligands: MG.2, MG.3, P2S.5 12 PLIP interactions: 12 interactions with chain A Hydrogen bonds: A:L.26, A:T.70, A:S.154, A:E.325 Water bridges: A:E.67, A:V.72, A:N.297, A:K.306, A:K.306 Salt bridges: A:K.306 pi-Stacking: A:Y.326, A:Y.326

1 x P6G: HEXAETHYLENE GLYCOL(Non-functional Binders)

P6G.7: 13 residues within 4Å: Chain A: Y.188, R.235, L.236, Y.241, N.243, Y.300, A.301, P.302, R.330, L.370, R.374, W.377 Ligands: P2S.5 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.235, A:R.330 Water bridges: A:N.243, A:N.243

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hibi, T. et al., Crystal structure of gamma-glutamylcysteine synthetase: insights into the mechanism of catalysis by a key enzyme for glutathione homeostasis. PROC.NATL.ACAD.SCI.USA (2004)

Release Date

2004-10-05

Peptides

Glutamate--cysteine ligase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

Glutamate--cysteine ligase

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