AsaP1 inactive mutant E294Q, an extracellular toxic zinc metalloendopeptidase

Experimental Data Snapshot

  • Resolution: 1.99 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Structural Evidence of Intramolecular Propeptide Inhibition of the Aspzincin Metalloendopeptidase Asap1.

Bogdanovic, X.Palm, G.J.Schwenteit, J.Singh, R.K.Gudmundsdottir, B.K.Hinrichs, W.

(2016) FEBS Lett 590: 3280

  • DOI: https://doi.org/10.1002/1873-3468.12356
  • Primary Citation of Related Structures:  
    2X3A, 2X3B, 2X3C

  • PubMed Abstract: 

    The Gram-negative bacterium Aeromonas salmonicida is a fish pathogen for various fish species worldwide. Aeromonas salmonicida subsp. achromogenes produces the extracellular, toxic zinc endopeptidase AsaP1. Crystal structure analyses at 2.0 Å resolution of two proteolytically inactive AsaP1 variants show the polypeptide folding of the protease domain and the propeptide domain. These first crystal structure analyses of a precursor of a deuterolysin-like aspzincin protease provide insights into propeptide function, and specific substrate binding. A lysine side chain of the propeptide binds in the hydrophobic S1'-pocket interacting with three carboxylate side chains. An AsaP1 variant with a lysine to alanine exchange identifies the chaperone function of the propeptide.

  • Organizational Affiliation

    Department of Molecular Structural Biology, Institute for Biochemistry, University of Greifswald, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TOXIC EXTRACELLULAR ENDOPEPTIDASE343Aeromonas salmonicida subsp. achromogenesMutation(s): 1 
Find proteins for Q8GMV9 (Aeromonas salmonicida subsp. achromogenes)
Explore Q8GMV9 
Go to UniProtKB:  Q8GMV9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8GMV9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.99 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.958α = 90
b = 72.016β = 109.78
c = 54.996γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-02-02
    Type: Initial release
  • Version 1.1: 2016-09-21
    Changes: Database references, Non-polymer description, Version format compliance
  • Version 1.2: 2016-10-12
    Changes: Database references
  • Version 1.3: 2019-07-24
    Changes: Data collection
  • Version 1.4: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description