A Chromosomal Locus Controlling Extracellular Agarase Production by Streptomyces coelicolor A 3(2), and its Inactivation by Chromosomal Integration of Plasmid SCP1

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Chromosomal Locus Controlling Extracellular Agarase Production by Streptomyces coelicolor A3(2), and its Inactivation by Chromosomal Integration

The properties of various mutants showed that, in the presence of an inorganic nitrogen source, agar utilization by Streptomyces coelicolor requires the action of at least three groups of enzymes: a diffusible or cell-free extracellular agarase, some further degradative step(s), and the enzymes of galactose metabolism. Two unselected mutations (dag), both leading to loss of diffusible agarase a...

متن کامل

A pigmented mycelial antibiotic in Streptomyces coelicolor: control by a chromosomal gene cluster.

Streptomyces coelicolor was found to produce a third secondary metabolite, in addition to the antibiotics methylenomycin A and actinorhodin previously described. This is a red pigmented, highly non-polar compound with antibiotic activity against certain Gram-positive bacteria. Mutants lacking the red compound fell into five cosynthetic classes. Representatives of each of the five classes were m...

متن کامل

Three functional replication origins of the linear and artificially circularized plasmid SCP1 of Streptomyces coelicolor.

Previous reports showed that the large linear plasmid SCP1 of Streptomyces coelicolor A3(2) contains a 5.4 kb centrally located replication locus. We report here that SCP1 actually contains three internal replication loci. Subcloning of the 5.4 kb sequence identified a 3.2 kb minimal locus (rep1A/repB/iteron) that determined propagation in Streptomyces lividans. The two newly identified replica...

متن کامل

a genre analytic study of research papers written by bilingual writers and their beliefs: a case of persian-english writers

تحقیق حاضر گزارشی است از تحلیل بخش مقدمه دو دسته از مقالات که عبارتند از: 11 مقاله از دو نویسنده دوزبانه فارسی زبان, که شامل مقدمه 4 مقاله به زبان انگلیسی و چاپ شده در مجلات بین المللی, مقدمه 3 مقاله به زبان انگلیسی و 4 مقاله به زبان فارسی چاپ شده در مجلات داخلی می شود؛ و 12 مقاله از محققان خارجی که در مجله applied linguistics به چاپ رسیده است. مبنای تئوری این تحلیل ها نظریه سوئلز (1990) یا هما...

15 صفحه اول

Histidine production by a regulatory mutant of Streptomyces coelicolor.

Streptomyces coelicolor mutant RF-59, isolated as a revertant of a histidine auxotroph after mutagenic treatment with N-methylN'-nitro-N-nitrosoguanidine, was found to accumulate L-histidine. The mutant was sensitive to 2-thiazo-lealanine and L-2,4-diaminobutyric acid and partially sensitive to alpha-methylhistidine but resistant to 1,2,4-triazolealanine, indicating that repression of the histi...

متن کامل

ذخیره 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: Microbiology

سال: 1981

ISSN: 1350-0872,1465-2080

DOI: 10.1099/00221287-124-2-339