3H6J

Crystal structure of a putative neuraminidase from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 

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This is version 1.3 of the entry. See complete history


Literature

Crystal structures of respiratory pathogen neuraminidases

Hsiao, Y.-S.Parker, D.Ratner, A.J.Prince, A.Tong, L.

(2009) Biochem Biophys Res Commun 380: 467-471

  • DOI: 10.1016/j.bbrc.2009.01.108
  • Primary Citation of Related Structures:  
    3H72, 3H73, 3H6J, 3H71

  • PubMed Abstract: 
  • Currently there is pressing need to develop novel therapeutic agents for the treatment of infections by the human respiratory pathogens Pseudomonas aeruginosa and Streptococcus pneumoniae. The neuraminidases of these pathogens are important for host colonization in animal models of infection and are attractive targets for drug discovery ...

    Currently there is pressing need to develop novel therapeutic agents for the treatment of infections by the human respiratory pathogens Pseudomonas aeruginosa and Streptococcus pneumoniae. The neuraminidases of these pathogens are important for host colonization in animal models of infection and are attractive targets for drug discovery. To aid in the development of inhibitors against these neuraminidases, we have determined the crystal structures of the P. aeruginosa enzyme NanPs and S. pneumoniae enzyme NanA at 1.6 and 1.7A resolution, respectively. In situ proteolysis with trypsin was essential for the crystallization of our recombinant NanA. The active site regions of the two enzymes are strikingly different. NanA contains a deep pocket that is similar to that in canonical neuraminidases, while the NanPs active site is much more open. The comparative studies suggest that NanPs may not be a classical neuraminidase, and may have distinct natural substrates and physiological functions. This work represents an important step in the development of drugs to prevent respiratory tract colonization by these two pathogens.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, NY 10027, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NeuraminidaseA438Pseudomonas aeruginosaMutation(s): 0 
Gene Names: PA2794DT376_07370ECC04_003015HMPREF2687_00035IPC116_12015
UniProt
Find proteins for Q9L6G4 (Pseudomonas aeruginosa)
Explore Q9L6G4 
Go to UniProtKB:  Q9L6G4
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 
  • Space Group: P 21 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 126.34α = 90
b = 126.34β = 90
c = 126.34γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
SnBphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2009-04-23 
  • Released Date: 2009-05-12 
  • Deposition Author(s): Hsiao, Y.-S., Tong, L.

Revision History  (Full details and data files)

  • Version 1.0: 2009-05-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description
  • Version 1.3: 2019-09-04
    Changes: Data collection