3CZ4

Native AphA class B acid phosphatase/phosphotransferase from E. coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into the catalytic mechanism of the bacterial class B phosphatase AphA belonging to the DDDD superfamily of phosphohydrolases.

Leone, R.Cappelletti, E.Benvenuti, M.Lentini, G.Thaller, M.C.Mangani, S.

(2008) J Mol Biol 384: 478-488

  • DOI: 10.1016/j.jmb.2008.09.050
  • Primary Citation of Related Structures:  
    3CZ4

  • PubMed Abstract: 
  • AphA is a magnesium-dependent, bacterial class B acid phosphatase that catalyzes the hydrolysis of a variety of phosphoester substrates and belongs to the DDDD superfamily of phosphohydrolases. The recently reported crystal structure of AphA from Escherichia coli has revealed the quaternary structure of the enzyme together with hints about its catalytic mechanism ...

    AphA is a magnesium-dependent, bacterial class B acid phosphatase that catalyzes the hydrolysis of a variety of phosphoester substrates and belongs to the DDDD superfamily of phosphohydrolases. The recently reported crystal structure of AphA from Escherichia coli has revealed the quaternary structure of the enzyme together with hints about its catalytic mechanism. The present work reports the crystal structures of AphA from E. coli in complex with substrate, transition-state, and intermediate analogues. The structures provide new insights into the mechanism of the enzyme and allow a revision of some aspects of the previously proposed mechanism that have broader implications for all the phosphatases of the DDDD superfamily.


    Related Citations: 
    • A Structure Based Proposal for the Catalytic Mechanism of the Bacterial Acid Phosphatase AphA belonging to the DDDD Superfamily of Phosphohydrolases
      Calderone, V., Forleo, C., Benvenuti, M., Thaller, M.C., Rossolini, G.M., Mangani, S.
      (2006) J Mol Biol 355: 708

    Organizational Affiliation

    Dipartimento di Chimica, Università di Siena, Via Aldo Moro 2, I-53100 Siena, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Class B acid phosphataseA212Escherichia coli K-12Mutation(s): 0 
Gene Names: aphAnapAyjbPb4055JW4015
EC: 3.1.3.2
Find proteins for P0AE22 (Escherichia coli (strain K12))
Explore P0AE22 
Go to UniProtKB:  P0AE22
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.294α = 90
b = 92.775β = 90
c = 137.6γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-11-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance