4D74

1.57 A crystal structure of erwinia amylovora tyrosine phosphatase amsI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Characterization and 1.57 A Resolution Structure of the Key Fire Blight Phosphatase Amsi from Erwinia Amylovora

Salomone-Stagni, M.Musiani, F.Benini, S.

(2016) Acta Crystallogr.,Sect.F 72: 903

  • DOI: 10.1107/S2053230X16018781

  • PubMed Abstract: 
  • AmsI is a low-molecular-weight protein tyrosine phosphatase that regulates the production of amylovoran in the Gram-negative bacterium Erwinia amylovora, a specific pathogen of rosaceous plants such as apple, pear and quince. Amylovoran is an exopoly ...

    AmsI is a low-molecular-weight protein tyrosine phosphatase that regulates the production of amylovoran in the Gram-negative bacterium Erwinia amylovora, a specific pathogen of rosaceous plants such as apple, pear and quince. Amylovoran is an exopolysaccharide that is necessary for successful infection. In order to shed light on AmsI, its structure was solved at 1.57 Å resolution at the same pH as its highest measured activity (pH 5.5). In the active site, a water molecule, bridging between the catalytic Arg15 and the reaction-product analogue sulfate, might be representative of the water molecule attacking the phospho-cysteine intermediate in the second step of the reaction mechanism.


    Related Citations: 
    • Cloning, Purification, Crystallization and 1.57 A Resolution X-Ray Data Analysis of Amsi, the Tyrosine Phosphatase Controlling Amylovoran Biosynthesis in the Plant Pathogen Erwinia Amylovora.
      Benini, S.,Caputi, L.,Cianci, M.
      (2014) Acta Crystallogr.,Sect.F 70: 1693


    Organizational Affiliation

    Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN-TYROSINE-PHOSPHATASE AMSI
A
170Erwinia amylovoraMutation(s): 1 
Gene Names: amsI
EC: 3.1.3.48
Find proteins for Q46630 (Erwinia amylovora)
Go to UniProtKB:  Q46630
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: 1.57 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.169 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 66.026α = 90.00
b = 66.026β = 90.00
c = 72.273γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
BALBESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-01-20
    Type: Initial release
  • Version 1.1: 2016-12-14
    Type: Database references
  • Version 1.2: 2018-03-07
    Type: Data collection, Source and taxonomy