J 2001

Detection of prophages in TSST-1-positive Staphylococcus aureus strains by means of specific probes

HRSTKA, Roman, Vladislava RŮŽIČKOVÁ, Roman PANTŮČEK, Petr PETRÁŠ, Jiří DOŠKAŘ et. al.

Basic information

Original name

Detection of prophages in TSST-1-positive Staphylococcus aureus strains by means of specific probes

Authors

HRSTKA, Roman (203 Czech Republic), Vladislava RŮŽIČKOVÁ (203 Czech Republic, guarantor), Roman PANTŮČEK (203 Czech Republic), Petr PETRÁŠ (203 Czech Republic) and Jiří DOŠKAŘ (203 Czech Republic)

Edition

Scripta medica, Brno, Masaryk University, Faculty of Medicine, 2001, 1211-3395

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/01:00007143

Organization unit

Faculty of Science

Keywords in English

Staphylococcus aureus; TSST-1 toxin; Toxic Shock Syndrom; molecular identification; prophages; lysogeny
Změněno: 20/5/2003 12:30, prof. RNDr. Roman Pantůček, Ph.D.

Abstract

V originále

The strains of Staphylococcus aureus producing TSST-1 toxin can induce human disease called Toxic Shock Syndrom (TSS).Production of staphylococcal toxins is based on the function of genes, which are usually localised in chromosome of host bacterium,but sometimes they can be a part of prophage genome.Temperate bacteriophages of S.aureus can move genes by transduction and/or mediate lysogenic conversion of bacterial cells,which leads to increased ability of toxin production, usually of enterotoxins A and E. In this study 25 strains of S.aureus were analysed for presence of prophages of the serological groups A,and F. The presence of prophages was determined using hybridisation by means of specific probes to Sma I and Hin dIII DNA restriction patterns of S.aureus strains.Probes were prepared from genomic sequences of phages 77 (serological group F),53 (serological group B)and 3A(serological group A). Positive signal in Sma I restriction patterns was found in 92 %strains when probe 77A was used. On the other hand probes 53B and 3A hybridised to 45 %strains only. The presence of at least one of prophages (of three tested serological groups)was detected in Hin dIII restriction patterns of 96 %strains.The prophages of serological group F were detected in 84 %strains.Therefore we suppose that TSST-1 positive strains contain mostly prophages of serological group F.The occurrence of prophages of serological groups A and is less abundant. In conclusion we suppose that there is a certain correlation between presence of prophages of serological group F in the bacterial cells and their ability to produce TSST-1.

Links

MSM 143100008, plan (intention)
Name: Genomy a jejich funkce
Investor: Ministry of Education, Youth and Sports of the CR, Genomes and their functions