نتایج جستجو برای: streptomyces rimosus
تعداد نتایج: 13472 فیلتر نتایج به سال:
The temperate actinophage RP3 integrates site-specifically into the chromosome of Streptomyces rimosus R6-554. The phage attachment site attP and the hybrid attachment sites of the integrated prophage--attL and attR--were cloned and sequenced. The 54nt core sequence, common to all RP3 related attachment sites, comprises the 3' terminal end of a putative tRNA(Arg)(AGG) gene. AttB bears the compl...
A series of halogenated pyrrolo [2,1-b] [1,3] benzoxazines (1 approximately 9) was isolated from fermentations of an actinomycete strain X10/78/978 (NCIMB40808), identified as Streptomyces rimosus, during a microbial extract screening programme to identify inhibitors of bacterial histidine kinase. The structures of these compounds were elucidated by spectroscopic methods including the HMQC, HMB...
Leptomycin B (LMB), a secondary metabolite produced by Streptomyces sp. strain ATS 1287, with known antifungal and antitumor effects, inhibits the nucleo-cytoplasmic translocation of the human immunodeficiency virus type 1 regulatory protein Rev and exhibits significant antiproliferative activity. Since LMB itself turned out to be distinctly cytotoxic, a bioconversion screening with a selected ...
Genetic Evidence for a Plasmid Controlling Fertility in an Industrial Strain of Streptomyces rimosus
The mechanism conferring resistance to paromomycin in Streptomyces rimosus forma paromomycinus, the producing organism, was studied at the level of both protein synthesis and drug-inactivating enzymes. Ribosomes prepared from this organism grown in either production or nonproduction medium were fully sensitive to paromomycin. A paromomycin acetyltransferase and a paromomycin phosphotransferase,...
The biological activity of Streptomyces aureofaciens MY18 and Streptomyces roseviolaceus MR13 (local isolates) as influenced by temperature,aeration, different media and carbon and nitrogen sources were investigated. It was found that biomass., growth parameters and antibiotic activity of bOth strains were highly affected by these factors. The first strain showed higher temperature range than t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید