3PCT

Structure of the class C acid phosphatase from Pasteurella multocida


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure and immunogenicity of the class C acid phosphatase from Pasteurella multocida.

Singh, H.Malinski, T.J.Reilly, T.J.Henzl, M.T.Tanner, J.J.

(2011) Arch.Biochem.Biophys. 509: 76-81

  • DOI: 10.1016/j.abb.2011.02.021

  • PubMed Abstract: 
  • Pasteurella multocida is a pathogen of veterinary and medical importance. Here, we report the 1.85Å resolution crystal structure of the class C acid phosphatase from this organism (denoted rPmCCAP). The structure shows that rPmCCAP exhibits the same ...

    Pasteurella multocida is a pathogen of veterinary and medical importance. Here, we report the 1.85Å resolution crystal structure of the class C acid phosphatase from this organism (denoted rPmCCAP). The structure shows that rPmCCAP exhibits the same haloacid dehalogenase fold and dimeric assembly as the class C enzyme from Haemophilus influenzae. Formation of the dimer in solution is demonstrated using analytical ultracentrifugation. The active site is devoid of a magnesium ion due to the presence of citrate in the crystallization buffer. Absence of the metal ion minimally perturbs the active site structure, which suggests that the main role of the ion is to balance the negative charge of the substrate rather than stabilize the active site structure. The crystal lattice displays unusual crystal packing involving the C-terminal polyhistidine tag mimicking the substrate. Steady-state kinetic constants are determined for the substrates NMN, 5'-AMP, 3'-AMP, 2'-AMP, and p-nitrophenyl phosphate. The highest catalytic efficiency is observed with NMN. The production of polyclonal anti-rPmCCAP antibodies is demonstrated, and these antibodies are shown to cross-react with the H. influenzae class C phosphatase. The antibodies are used to detect PmCCAP in clinical P. multocida and Mannheimia haemolytica strains cultured from infected animals.


    Organizational Affiliation

    Department of Chemistry, University of Missouri, Columbia, MO 65211, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Class C acid phosphatase
A, B, C
260Pasteurella multocidaMutation(s): 0 
Gene Names: acpC (hel)
Find proteins for B9VWB2 (Pasteurella multocida)
Go to UniProtKB:  B9VWB2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.212 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 79.980α = 90.00
b = 106.150β = 93.11
c = 89.750γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOLREPphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
MOSFLMdata reduction
SCALAdata processing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance