2DEA image
Deposition Date 2006-02-10
Release Date 2006-07-25
Last Version Date 2024-10-30
Entry Detail
PDB ID:
2DEA
Keywords:
Title:
Crystal Structure of the Aminopeptidase of Aeromonas proteolytica at pH 4.7
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.24 Å
R-Value Free:
0.16
R-Value Work:
0.15
Space Group:
P 61 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Bacterial leucyl aminopeptidase
Chain IDs:A
Chain Length:299
Number of Molecules:1
Biological Source:Vibrio proteolyticus
Primary Citation
The high-resolution structures of the neutral and the low pH crystals of aminopeptidase from Aeromonas proteolytica.
J.Biol.Inorg.Chem. 11 398 408 (2006)
PMID: 16596389 DOI: 10.1007/s00775-006-0093-x

Abstact

The aminopeptidase from Aeromonas proteolytica (AAP) contains two zinc ions in the active site and catalyzes the degradation of peptides. Herein we report the crystal structures of AAP at 0.95-A resolution at neutral pH and at 1.24-A resolution at low pH. The combination of these structures allowed the precise modeling of atomic positions, the identification of the metal bridging oxygen species, and insight into the physical properties of the metal ions. On the basis of these structures, a new putative catalytic mechanism is proposed for AAP that is likely relevant to all binuclear metalloproteases.

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Primary Citation of related structures