1DKQ

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

Structural Biology Knowledgebase: 1DKQ SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.257
  • R-Value Work: 0.217

Literature

Macromolecules
Sequence Display for 1DKQ

Classification: HYDROLASE

Total Structure Weight: 46159.48

Macromolecule Entities
Molecule Chains Length Organism Details
PHYTASE A 410 Escherichia coli EC#: 3.1.3.2 IUBMB
Mutation: H17A, A116T
Gene Name(s): appA b0980 JW0963
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
IHP
Query on IHP

A INOSITOL HEXAKISPHOSPHATE
C6 H18 O24 P6
IMQLKJBTEOYOSI-GPIVLXJGSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
HG
Query on HG

A MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.257
  • R-Value Work: 0.217
  • Space Group: P 21 21 21
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 70.44 α = 90.00
b = 75.14 β = 90.00
c = 89.96 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1999-12-08
  • Released Date: 2000-08-03
  • Deposition author(s): Lim, D., Golovan, S., Forsberg, C.W., Jia, Z.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4