نتایج جستجو برای: rare actinomycete
تعداد نتایج: 242376 فیلتر نتایج به سال:
In order to find new actinomycete resources for discovering new drug leads, the actinomycete associated with lichens was studied. Three species of lichen samples were collected from 3 locations of Yunnan. Actinomycetes in the samples were isolated with 11 media, and identified with 16S rRNA gene sequence procedures. Bacteria of two of the three species were sequenced by using 454 pyrosequencing...
A study of the bacteriolytic properties of streptomycetes has progressively uncovered the production by these microorganisms of a large number of different enzymes acting upon various bacterial constituents, especially on some of them located in the cell wall Although the mechanism of the bacteriolysis is far from being completely elucidated at present, it can, however, be stated that, in two i...
Soluble cell-free extracts of actinomycete S4 grown on media containing mevalonate catalyze acetoacetate formation from mevalonate, mevaldate, and beta-hydroxy-beta-methylglutaryl-coenzyme A (CoA). Conversion of mevalonate to acetoacetate involves formation of free beta-hydroxy-beta-methylglutaryl-CoA, but not free mevaldate. The reaction favors mevalonate oxidation, and nicotinamide adenine di...
Two new antibiotics SF2315A and B have been isolated from culture filtrate of an actinomycete strain, Excellospora viridilutea SF2315. They are weakly active against Gram-positive bacteria and inhibited reverse transcriptase of avian myeloblastosis virus. Empirical molecular formula of antibiotics SF2315A and B were determined to be C19H16O5 and C19H20O6, respectively.
We report a draft sequence of the genome of Gordonia neofelifaecis NRRL B-59395, a cholesterol-degrading actinomycete isolated from fresh feces of a clouded leopard (Neofelis nebulosa). As predicted, the reported genome contains several gene clusters for cholesterol degradation. This is the second available genome sequence of the family Gordoniaceae.
Amycolatopsis orientalis CPCC200066 is an actinomycete that can produce the glycopeptide antibiotic norvancomycin, which has significant inhibitory activity against Gram-positive cocci and bacilli. Here, we report the draft genome sequence of A. orientalis CPCC200066 and identified the genes involved in norvancomycin biosynthesis.
A previously unreported 26-membered polyene macrocyclic lactam, sceliphrolactam, was isolated from an actinomycete, Streptomyces sp., associated with the mud dauber, Sceliphron caementarium. Sceliphrolactam's structure was determined by 1D- and 2D-NMR, MS, UV, and IR spectral analysis. Sceliphrolactam displays antifungal activity against amphotericin B-resistant Candida albicans (MIC = 4 μg/mL,...
Amycolatopsis mediterranei S699 is an actinomycete that produces an important antibiotic, rifamycin B. Semisynthetic derivatives of rifamycin B are used for the treatment of tuberculosis, leprosy, and AIDS-related mycobacterial infections. Here, we report the complete genome sequence (10.2 Mb) of A. mediterranei S699, with 9,575 predicted coding sequences.
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