pathogenicity island


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pathogenicity island

[‚path·ə·jə′nis·əd·ē ‚ī·lənd]
(genetics)
A deoxyribonucleic acid cluster commonly containing genes associated with pathogenesis. Also known as virulence cassette.
References in periodicals archive ?
Distribution of the usp gene in uropathogenic Escherichia coli isolated from companion animals and correlation with serotypes and size-variations of the pathogenicity island.
Pathogenicity islands and phages in Vibrio cholerae evolution.
2007 Salmonella pathogenicity islands En: Rhen, M, Maskell, D, Mastroeni, P, Threlfall, J.
Under normal conditions, pathogenicity islands produce the protein Stl, which binds to the DNA segment containing virulent genes and represses the transfer of the island.
The differentiation of eae, tir, espA, espD, and espB gene variants of the LEE pathogenicity island represents an important tool for STEC and EPEC typing in routine diagnostics as well as in pathogenesis, epidemiologic, clonal, and immunologic studies.
In the hostile environment of the phagosome, Salmonella turn on the expression of genes in another horizontally acquired pathogenicity island termed SPI-2 T3SS [43, 44].
Characterization of a putative pathogenicity island from bovine Staphylococcus aureus encoding multiple superantigens.
Presence of pathogenicity island genes in Enterococcus faecalis isolates from pigs in Denmark.
VAG, virulence-associated gene; 89K PAI, [aproximately equal to] 89-kb pathogenicity island.
These mechanisms correlate with the presence in each species of genetic determinants called the inlAB internalization locus, the LIPI-1 intracellular survival pathogenicity island, and the hpt intracellular growth locus (2).
One of these strains, associated with 11% of the cases, was genotypically different from the pandemic strain but contained genes that were identical to those found on its pathogenicity island.
To gain insight into the pathogenic potential of the 2 isolates, we assessed the presence of pYV (70-kb virulence plasmid), high pathogenicity island (HPI), and Y.