4TKX image
Deposition Date 2014-05-28
Release Date 2014-12-31
Last Version Date 2024-11-06
Entry Detail
PDB ID:
4TKX
Keywords:
Hydrolase/Hydrolase Inhibitor
Title:
Structure of Protease
Biological Source:
Source Organism:
Porphyromonas gingivalis (Taxon ID: 837)
Host Organism:
Porphyromonas gingivalis
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.60 Å
R-Value Free:
0.14
R-Value Work:
0.12
R-Value Observed:
0.12
Space Group:
P 43 21 2
4TKX validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Lys-gingipain W83
Gene (Uniprot):kgp
Chain IDs:A (auth: L)
Chain Length:452
Number of Molecules:1
Biological Source:Porphyromonas gingivalis
UniProt ID:Q51817 Pfam ID:PF01364, PF03785 EC:3.4.22.47
Ligand Molecules
ACT
EDO
K
NA
PB
SO4
TCK
Peptide-like Molecules
PRD_000459
Primary Citation
Structure of the lysine specific protease Kgp from Porphyromonas gingivalis, a target for improved oral health.
Protein Sci. 24 162 166 (2015)
PMID: 25327141 DOI: 10.1002/pro.2589

Abstact

The oral pathogen Porphyromonas gingivalis is a keystone pathogen in the development of chronic periodontitis. Gingipains, the principle virulence factors of P. gingivalis are multidomain, cell-surface proteins containing a cysteine protease domain. The lysine specific gingipain, Kgp, is a critical virulence factor of P. gingivalis. We have determined the X-ray crystal structure of the lysine-specific protease domain of Kgp to 1.6 Å resolution. The structure provides insights into the mechanism of substrate specificity and catalysis.

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Disease

Primary Citation of related structures
4TKX