Preparation of a speciesspecific molecular probe for identification of Staphylococcus aureus

ŠTĚPÁN, Jiří, Roman PANTŮČEK, Vladislava RŮŽIČKOVÁ, Stanislav ROSYPAL and Jiří DOŠKAŘ. Preparation of a speciesspecific molecular probe for identification of Staphylococcus aureus. Scripta medica. Brno: Lékařská fakulta Masarykovy univerzity, 2000, vol. 72, No 8, p. 380. ISSN 1211-3395.

Basic information

• Original name: Preparation of a speciesspecific molecular probe for identification of Staphylococcus aureus
• Authors: ŠTĚPÁN, Jiří, Roman PANTŮČEK, Vladislava RŮŽIČKOVÁ, Stanislav ROSYPAL and Jiří DOŠKAŘ.
• Edition: Scripta medica, Brno, Lékařská fakulta Masarykovy univerzity, 2000, 1211-3395.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: Genetics and molecular biology
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/00:00002298
• Organization unit: Faculty of Science

Abstract

In our previous work a 44-kb genomic SmaI-restriction fragment common to all S. aureus strains has been described. This restriction fragment was used as a starting point in preparation of a species-specific hybridisation probe for rapid molecular identification S. aureus strains. EcoRI-restricted genomic DNAs isolated from 13 different S. aureus strains, including the type strain S. aureus CCM 885, and from the type strain S. epidermidis CCM 2124 (negative control) were hybridised to a probe prepared from the whole sequence of the 44-kb fragment. The EcoRI-restriction fragments showing strong hybridisation to the S. aureus 44-kb probe were cloned in the pUCl8 vector in E. coli and used as candidates for the preparation of molecular probes specific for S. aureus. The cloned 2-kb EcoRI-restriction fragment was chosen as the most specific fragment that hybridised to the homologic EcoRl-fragment present in genomic DNA of more than 100 S. aureus strains of different provenance. No hybridisation was detected on genomic DNA isolated from S. epidennidis and the other species of the genus Sraphylococcus. The 2-kb EcoRl-fragment was sequenced and the primers for rapid PCR-identification of S. aureus strains were derived. In using these primers, 825 b PCR amplification products were obtained in DNA isolated from 100 S. aureus strains. No PCR amplification products were obtained in DNA isolated from the other Staphylococcus species.

Links

• GA301/99/D075, research and development project: Name: Genotypová diagnostika a typizace klinicky významných koaguláza negativních stafylokoků

Investor: Czech Science Foundation, Genome-based diagnostics and typing of coagulase-negative staphylococci from human clinical specimens

• MSM 143100008, plan (intention): Name: Genomy a jejich funkce

Investor: Ministry of Education, Youth and Sports of the CR, Genomes and their functions