1D2T

CRYSTAL STRUCTURE OF ACID PHOSPHATASE FROM ESCHERICHIA BLATTAE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray structures of a novel acid phosphatase from Escherichia blattae and its complex with the transition-state analog molybdate.

Ishikawa, K.Mihara, Y.Gondoh, K.Suzuki, E.Asano, Y.

(2000) EMBO J. 19: 2412-2423

  • DOI: 10.1093/emboj/19.11.2412
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The structure of Escherichia blattae non-specific acid phosphatase (EB-NSAP) has been determined at 1.9 A resolution with a bound sulfate marking the phosphate-binding site. The enzyme is a 150 kDa homohexamer. EB-NSAP shares a conserved sequence mot ...

    The structure of Escherichia blattae non-specific acid phosphatase (EB-NSAP) has been determined at 1.9 A resolution with a bound sulfate marking the phosphate-binding site. The enzyme is a 150 kDa homohexamer. EB-NSAP shares a conserved sequence motif not only with several lipid phosphatases and the mammalian glucose-6-phosphatases, but also with the vanadium-containing chloroperoxidase (CPO) of Curvularia inaequalis. Comparison of the crystal structures of EB-NSAP and CPO reveals striking similarity in the active site structures. In addition, the topology of the EB-NSAP core shows considerable similarity to the fold of the active site containing part of the monomeric 67 kDa CPO, despite the lack of further sequence identity. These two enzymes are apparently related by divergent evolution. We have also determined the crystal structure of EB-NSAP complexed with the transition-state analog molybdate. Structural comparison of the native enzyme and the enzyme-molybdate complex reveals that the side-chain of His150, a putative catalytic residue, moves toward the molybdate so that it forms a hydrogen bond with the metal oxyanion when the molybdenum forms a covalent bond with NE2 of His189.


    Organizational Affiliation

    Central Research Laboratories, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki 210-8681, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACID PHOSPHATASE
A
231Shimwellia blattaeMutation(s): 0 
Gene Names: pho
EC: 3.1.3.2
Find proteins for Q9S1A6 (Shimwellia blattae)
Go to UniProtKB:  Q9S1A6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.216 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 124.700α = 90.00
b = 124.700β = 90.00
c = 97.700γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
DENZOdata reduction
CCP4data scaling
MLPHAREphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-06
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance