SMTL ID : 1dkq.1

CRYSTAL STRUCTURE OF PHYTATE COMPLEX ESCHERICHIA COLI PHYTASE AT PH 5.0. PHYTATE IS BOUND WITH ITS 3-PHOSPHATE IN THE ACTIVE SITE. HG2+ CATION ACTS AS AN INTERMOLECULAR BRIDGE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.05 Å

Oligo State

monomer

Ligands

4 x HG: MERCURY (II) ION(Non-covalent)

HG.1: 2 residues within 4Å: Chain A: H.113, Y.289 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.113, A:Y.289, H2O.3 HG.2: 4 residues within 4Å: Chain A: H.282, Q.285, Q.287, L.293 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.282, A:L.293, H2O.7 HG.3: 8 residues within 4Å: Chain A: R.16, E.219, H.250, D.304, D.325, T.327 Ligands: HG.4, IHP.5 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.250, A:D.304, A:D.325 HG.4: 6 residues within 4Å: Chain A: R.16, H.250, D.304, D.325, T.327 Ligands: HG.3 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.250, A:D.325, A:T.327

1 x IHP: INOSITOL HEXAKISPHOSPHATE(Non-covalent)

IHP.5: 15 residues within 4Å: Chain A: R.16, R.20, T.23, K.24, D.90, R.92, M.216, E.219, H.250, F.254, R.267, H.303, D.304, T.305 Ligands: HG.3 32 PLIP interactions: 32 interactions with chain A Hydrogen bonds: A:T.23, A:T.23, A:D.304, A:D.304, A:D.304, A:D.304, A:T.305, A:T.305 Water bridges: A:R.16, A:R.16, A:R.20, A:R.20, A:R.20, A:T.23, A:R.92, A:K.129, A:M.216, A:R.267, A:N.306 Salt bridges: A:R.16, A:R.16, A:R.20, A:R.20, A:K.24, A:K.24, A:R.92, A:R.92, A:K.129, A:H.250, A:R.267, A:H.303, A:H.303

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lim, D. et al., Crystal structures of Escherichia coli phytase and its complex with phytate. Nat.Struct.Biol. (2000)

Release Date

2000-08-03

Peptides

PHYTASE: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

PHYTASE

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