Regulatory elements common to the Bacillus pumilus and Bacillus subtilis trp operons
نویسندگان
چکیده
منابع مشابه
Plasmid deoxyribonucleic acid in Bacillus subtilis and Bacillus pumilus.
Two of eighteen strains of Bacillus subtilis examined contained covalently closed circular duplex deoxyribonucleic acid (DNA) of homogeneous size and buoyant density. Strain ATCC 15841 contained about 16 copies per chromosome of plasmid pPL1, a circular DNA element having a molecular weight of about 4.7 times 10(6) and a buoyant density of 1.700. Strain ATCC 7003 contained about one to two copi...
متن کاملInstability of rRNA operons in Bacillus subtilis.
Many laboratory strains of Bacillus subtilis contain 9 rather than 10 rRNA operons due to deletions occurring within the rrnJ-rrnW or rrnI-rrnH-rrnG gene cluster. These operons are members of two sets of closely spaced clusters located in the cysA-aroI region. Analysis of rescued DNA from integrants with insertions into rrnG and rrnH indicated that these tandemly arranged operons allowed freque...
متن کاملDatabase of Operons in Bacillus subtilis
The operon, a unit of transcription in prokaryotes, comprises a part of the complicated gene regulatory networks. Thus, the prediction of operons has been carried out at several laboratories [1, 2, 4]. However, for validation of the prediction method, a database of known operons is required with additional information about actual transcriptional units and the conditions when they are transcrib...
متن کاملبررسی توانایی تولید بیوسورفکتانت توسط دو باکتری Bacillus pumilus 1529 و Bacillus subtilis WPI
مقدمه: بیوسورفکتانت‌ها، مولکول‌های دوگانه دوست منحصر به فردی هستند که کاربرد وسیعی در حذف آلودگی‌های آلی و فلزی محیط‌زیست دارند. هدف از پژوهش حاضر، بررسی و تعیین شرایط بهینه تولید بیوسورفکتانت توسط دو باکتری Bacillus pumilus 1529 و Bacillus subtilis WPI است. مواد و روش ها: در این پژوهش، اثر منبع کربن، دما و زمان گرماگذاری بر تولید بیوسورفکتانت بررسی شد. به‌منظور تشخیص تولید بیوسورفکتان...
متن کاملBacillus pumilus KatX2 confers enhanced hydrogen peroxide resistance to a Bacillus subtilis PkatA::katX2 mutant strain
BACKGROUND Bacillus pumilus cells exhibit a significantly higher resistance to hydrogen peroxide compared to closely related Bacilli like Bacillus subtilis. RESULTS In this study we analyzed features of the catalase KatX2 of B. pumilus as one of the most important parts of the cellular response to hydrogen peroxide. KatX2, the vegetative catalase expressed in B. pumilus, was compared to the v...
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: 1986
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.167.3.792-798.1986