The recombination dynamics of Staphylococcus aureus inferred from spA gene
نویسندگان
چکیده
منابع مشابه
Comparative sequence analysis of spa gene of Staphylococcus aureus isolated from bovine mastitis: characterization of an unusual spa gene variant.
The protein A encoding gene spa of four Staphylococcus aureus strains isolated from bovine clinical mastitis was amplified by PCR and sequenced. The four strains were selected after an initial screening of spa gene of 41 strains isolated from mastitic cows and were subjected to detailed investigations. According to the sequencing results the spa gene of three strains (M1, M2, M3) appeared with ...
متن کاملspa typing and enterotoxin gene profile of Staphylococcus aureus isolated from bovine raw milk in Korea
Staphylococcus aureus is a major etiological pathogen of bovine mastitis, which triggers significant economic losses in dairy herds worldwide. In this study, S. aureus strains isolated from the milk of cows suffering from mastitis in Korea were investigated by spa typing and staphylococcal enterotoxin (SE) gene profiling. Forty-four S. aureus strains were isolated from 26 farms in five province...
متن کاملPolymorphism in spa gene of Staphylococcus aureus from bovine subclinical mastitis
AIM The virulence-associated protein-A of Staphylococcus aureus, encoded by spa gene shows a variation in length in different strains. In this study, the spa gene variation in S. aureus strains was studied which were isolated from subclinical cases of bovine mastitis. MATERIALS AND METHODS About 38 isolatesof S. aureus were recovered from Holstein-Friesian (HF) crossbred (n=16) and Rathi catt...
متن کاملEnterotoxin gene profiles among Staphylococcus aureus isolated from raw milk
Milk is considered a nutritious food because it contains several important nutrients including proteins and vitamins. Conversely, it can be a vehicle for several pathogenic bacteria such as Staphylococcus aureus. This study aimed to analyze the frequency of genes encoding the nine Staphylococcal enterotoxins (SEs) and enterotoxin gene profiles in S. aureus isolates derived from raw bovine milk....
متن کاملRegulatory elements of the Staphylococcus aureus protein A (Spa) promoter.
Staphylococcal protein A (Spa) is an important virulence factor of Staphylococcus aureus. Transcription of the spa determinant occurs during the exponential growth phase and is repressed when the cells enter the postexponential growth phase. Regulation of spa expression has been found to be complicated, with regulation involving multiple factors, including Agr, SarA, SarS, SarT, Rot, and MgrA. ...
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ژورنال
عنوان ژورنال: BMC Microbiology
سال: 2016
ISSN: 1471-2180
DOI: 10.1186/s12866-016-0757-9