2006
Characterization of bacteriophage integrase gene families in Staphylococcus aureus phages of the International Typing Set
PANTŮČEK, Roman, Vladislava RŮŽIČKOVÁ, Martina PETERKOVÁ, Petr PETRÁŠ, Jiří DOŠKAŘ et. al.Základní údaje
Originální název
Characterization of bacteriophage integrase gene families in Staphylococcus aureus phages of the International Typing Set
Název česky
Charakterizace genů pro bakteriofágové integrázy u fágů mezinárodní řady pro Staphylococcus aureus
Autoři
PANTŮČEK, Roman (203 Česká republika, garant), Vladislava RŮŽIČKOVÁ (203 Česká republika), Martina PETERKOVÁ (203 Česká republika), Petr PETRÁŠ (203 Česká republika) a Jiří DOŠKAŘ (203 Česká republika)
Vydání
Abstract Book. Maastricht, the Netherlands, 12th International Symposium on Staphylococci & Staphylococcal Infections, s. 103-103, 2006
Nakladatel
Maastricht Exhibition & Congres Centre
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
Genetika a molekulární biologie
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Kód RIV
RIV/00216224:14310/06:00021700
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Staphylococcus aureus; medical microbiology; molecular diagnostics
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 31. 10. 2008 15:02, prof. RNDr. Roman Pantůček, Ph.D.
V originále
Temperate phages of family Siphoviridae play an important role in biology of S. aureus strains, usually changing their phenotype as a result of lysogenic conversion associated with some virulence factors. The prophage content of S. aureus strains can be determined by the multiplex PCR assay targeting structural genes of head-tail modules described previously (Pantůček et al., Arch. Virol. 2004; 149:1689). However, this approach did not occasionally cover defective prophages. Therefore, we focused on development, validation and application of a PCR-based molecular assay for identification and classification of S. aureus phages based on the sequences of their integrase genes. The integrase genes were sequenced in 23 phages of the International Typing Set by using primers derived from a conserved regulatory sequence between the integrase and excisionase genes followed by primer walking. Additional integrase gene sequences were retrieved from the GenBank database. For designation of bacteriophage integrase gene families the updated classification scheme was used which denotes the previously sequenced phage and S. aureus genomes. In this work the analyzed S. aureus phages were classified on the basis of integrase gene homology into 8 families which dictates at the same time insertion sites on the chromosome by a novel multiplex PCR strategy. Eight PCR primer pairs designed for the integrase sequences Sa1 (phiETA), Sa2 (phiPVL), Sa3 (phiN315), Sa4 (phiSa4-MSSA476), Sa5 (phi11), Sa6 (phiL54a), Sa7 (phi96) and Sa8 (phi77) shown to be very effective and capable in a single assay to identify phage integrase genes present in bacterial genomes in different combinations. This technique was verified on 100 clinical isolates and shown to be a useful tool for the identification of lysogenic variants ordinarily existing in S. aureus clones.
Česky
neuvedeno
Návaznosti
MSM0021622415, záměr |
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