نتایج جستجو برای: polyketide synthase gene
تعداد نتایج: 1200120 فیلتر نتایج به سال:
Streptomyces sp. N11-50 was isolated from deep-sea water and found to produce diketopiperazine (DKP) compounds such as albonoursin cyclo(Phe-Leu). This study aimed reveal the potential synthesize diverse nonribosomal peptide polyketide other secondary metabolites different DKP after clarifying taxonomic position. Strain identified albus, it showed 100% 16S rRNA gene sequence similarities 95.5% ...
Rapamycin is an important macrocyclic polyketide produced by Streptomyces hygroscopicus and showing immunosuppressive, antifungal, and antitumor activities as well as displaying anti-inflammatory and neuroregenerative properties. The immense pharmacological potential of rapamycin has led to the production of an array of analogues, including through genetic engineering of the rapamycin biosynthe...
Although bacterial polyketides are of considerable biomedical interest, the molecular biology of polyketide biosynthesis in Bacillus spp., one of the richest bacterial sources of bioactive natural products, remains largely unexplored. Here we assign for the first time complete polyketide synthase (PKS) gene clusters to Bacillus antibiotics. Three giant modular PKS systems of the trans-acyltrans...
Abstract Gene expression variation can be partitioned into different components (regulatory, genetic and acclimatory effects) but for lichen-forming fungi, the relative importance of each these effects is unclear. Here, we studied gene in fungus Lobaria pulmonaria response to thermal stress parasitism by lichenicolous Plectocarpon lichenum . Our experimental procedure was acclimate lichen thall...
PksA catalyzes the formation of the polyketide backbone necessary for aflatoxin biosynthesis. Based on reporter assays and sequence comparisons of the nor1-pksA intergenic region in different aflatoxin-producing Aspergillus species, cis-acting elements for the aflatoxin pathway-specific regulatory protein, AflR, and the global-acting regulatory proteins BrlA and PacC are involved in pksA promot...
Fusarielins are polyketides with a decalin core produced by various species of Aspergillus and Fusarium. Although the responsible gene cluster has been identified, the biosynthetic pathway remains to be elucidated. In the present study, members of the gene cluster were deleted individually in a Fusarium graminearum strain overexpressing the local transcription factor. The results suggest that a...
Phleichrome, a pigment produced by the phytopathogenic fungus Cladosporium phlei, is a fungal perylenequinone whose photodynamic activity has been studied intensively. To determine the biological function of phleichrome and to engineer a strain with enhanced production of phleichrome, we identified the gene responsible for the synthesis of phleichrome. Structural comparison of phleichrome with ...
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