Accessory Gene Regulator Control of Staphyloccoccal Enterotoxin D Gene Expression
نویسندگان
چکیده
منابع مشابه
Accessory gene regulator control of staphyloccoccal enterotoxin d gene expression.
The quorum-sensing system of Staphylococcus aureus, the accessory gene regulator (Agr) system, is responsible for increased transcription of certain exoprotein genes and decreased transcription of certain cell wall-associated proteins during the postexponential phase of growth. This regulation is important for virulence, as evidenced by a reduction in virulence associated with a loss of the Agr...
متن کاملStaphylococcal enterotoxin A gene (sea) expression is not affected by the accessory gene regulator (agr).
The goal of this work was to determine whether staphylococcal enterotoxin type A gene (sea) expression is regulated by an accessory gene regulator (agr). The Tn551 insertionally inactivated agr allele of Staphylococcus aureus ISP546 was transferred to three Sea+ S. aureus strains. Each of the Agr- strains produced as much staphylococcal enterotoxin A (SEA) as its parent strain. These results su...
متن کاملAccessory gene regulator locus of Staphylococcus intermedius.
The accessory gene regulator (agr) locus, a candidate system for the regulation of the production of virulence factors in Staphylococcus intermedius, has been characterized. Using PCR-based genome walking, we have obtained the first complete sequence (3,436 bp) of the accessory gene regulator (agr) gene in this organism. Sequence analysis of the agr gene has identified five open reading frames ...
متن کاملSurvey of accessory gene regulator (agr) groups and TSST-1 encoding gene (tst) in Staphylococcus aureus isolated from ewes with mastitis in the northwest of Iran
Accessory gene regulator (agr locus) is a global regulator of many virulence gene expressions inStaphylococcus aureus. Four interference classes related to genetic polymorphisms in the agr locus have sofar been described. In the present study, the agr locus specificity groups were studied within a total of 43 S.aureus isolates which were isolated from ewes with mastitis in three regions in the ...
متن کاملCloning and expression of Vibrio cholerae virulence gene, accessory cholera enterotoxin (ace).
The cholera enterotoxin (CT) has been considered a major virulence factor of Vibrio cholerae. The accessory cholera enterotoxin (ace) gene is the third gene of V. cholerae virulence cassette. The gene coding for the Ace toxin was amplified from V. cholerae isolates producing a single band of 314 bp. The presence of ace gene was confirmed by hybridization as well as by sequencing. The gene was s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2004
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.186.6.1793-1801.2004