SMTL ID : 1xg4.1

Crystal Structure of the C123S 2-Methylisocitrate Lyase Mutant from Escherichia coli in complex with the inhibitor isocitrate

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

homo-tetramer

Ligands

3 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 6 residues within 4Å: Chain A: G.46, D.57, D.84, D.86, K.120 Ligands: ICT.2 4 PLIP interactions: 1 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:D.84, H2O.10, H2O.10, H2O.10 MG.3: 6 residues within 4Å: Chain B: G.45, G.46, D.57, D.84, K.120 Ligands: ICT.4 4 PLIP interactions: 1 interactions with chain B, 3 Ligand-Water interactions Metal complexes: B:D.84, H2O.20, H2O.20, H2O.20 MG.5: 6 residues within 4Å: Chain D: G.46, D.57, D.84, D.86, K.120 Ligands: ICT.6 4 PLIP interactions: 1 interactions with chain D, 3 Ligand-Water interactions Metal complexes: D:D.84, H2O.38, H2O.38, H2O.38

3 x ICT: ISOCITRIC ACID(Non-covalent)

ICT.2: 16 residues within 4Å: Chain A: S.44, G.45, G.46, D.84, S.122, G.123, H.124, R.157, E.187, N.209, T.211, P.235, L.236, R.240 Chain B: R.269 Ligands: MG.1 19 PLIP interactions: 18 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:Y.42, A:Y.42, A:G.45, A:G.46, A:D.57, A:S.122, A:G.123, A:R.157, A:E.187, A:N.209 Water bridges: A:D.57, A:D.57, A:K.120, A:R.240, A:R.240 Salt bridges: A:H.124, A:R.157, A:R.240, B:R.269 ICT.4: 17 residues within 4Å: Chain A: R.269 Chain B: Y.42, S.44, G.45, G.46, D.57, D.84, S.122, G.123, H.124, R.157, E.187, N.209, T.211, P.235, R.240 Ligands: MG.3 18 PLIP interactions: 17 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:Y.42, B:Y.42, B:G.45, B:G.46, B:D.57, B:G.123, B:R.157, B:E.187, B:N.209 Water bridges: B:D.57, B:D.57, B:K.120, B:R.240, B:R.240 Salt bridges: B:H.124, B:R.157, B:R.240, A:R.269 ICT.6: 17 residues within 4Å: Chain C: R.269 Chain D: Y.42, S.44, G.45, G.46, D.57, D.84, S.122, G.123, H.124, R.157, E.187, N.209, T.211, P.235, R.240 Ligands: MG.5 18 PLIP interactions: 17 interactions with chain D, 1 interactions with chain C Hydrogen bonds: D:Y.42, D:G.45, D:G.46, D:D.57, D:S.122, D:S.122, D:G.123, D:R.157, D:N.209, D:T.211 Water bridges: D:D.57, D:K.120, D:R.240, D:R.240 Salt bridges: D:H.124, D:R.157, D:R.240, C:R.269

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, S. et al., Crystal Structures of 2-Methylisocitrate Lyase in Complex with Product and with Isocitrate Inhibitor Provide Insight into Lyase Substrate Specificity, Catalysis and Evolution. Biochemistry (2005)

Release Date

2005-03-01

Peptides

Probable methylisocitrate lyase: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Probable methylisocitrate lyase

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