SMTL ID : 1p43.1

REVERSE PROTONATION IS THE KEY TO GENERAL ACID-BASE CATALYSIS IN ENOLASE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

homo-dimer

Ligands

4 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 5 residues within 4Å: Chain A: D.246, E.295, D.320, K.396 Ligands: 2PG.3 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.246, A:E.295, A:D.320, H2O.1 MG.2: 3 residues within 4Å: Chain A: S.39, D.321 Ligands: 2PG.3 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:S.39, H2O.1, H2O.16 MG.4: 6 residues within 4Å: Chain B: D.246, E.295, D.296, D.320, K.396 Ligands: 2PG.6 4 PLIP interactions: 3 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.246, B:E.295, B:D.320, H2O.16 MG.5: 3 residues within 4Å: Chain B: S.39, D.321 Ligands: 2PG.6 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:S.39, H2O.16, H2O.16

2 x 2PG: 2-PHOSPHOGLYCERIC ACID(Non-covalent)

2PG.3: 16 residues within 4Å: Chain A: G.37, A.38, S.39, Q.168, E.211, D.246, E.295, D.320, L.343, K.345, H.373, R.374, S.375, K.396 Ligands: MG.1, MG.2 15 PLIP interactions: 15 interactions with chain A Hydrogen bonds: A:A.38, A:S.39, A:Q.168, A:H.373, A:S.375, A:S.375 Water bridges: A:Q.167, A:Q.167, A:Q.167, A:D.320, A:K.345 Salt bridges: A:K.345, A:K.345, A:R.374, A:K.396 2PG.6: 15 residues within 4Å: Chain B: G.37, A.38, Q.168, E.211, D.246, E.295, D.320, L.343, K.345, H.373, R.374, S.375, K.396 Ligands: MG.4, MG.5 12 PLIP interactions: 12 interactions with chain B Hydrogen bonds: B:A.38, B:S.39, B:Q.168, B:H.373, B:S.375, B:S.375 Water bridges: B:Q.167, B:K.345 Salt bridges: B:K.345, B:K.345, B:R.374, B:K.396

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sims, P.A. et al., Reverse protonation is the key to general acid-base catalysis in enolase. Biochemistry (2003)

Release Date

2003-11-18

Peptides

Enolase 1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Enolase 1