Cloning, sequencing, and analysis of the griseusin polyketide synthase gene cluster from Streptomyces griseus
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چکیده
منابع مشابه
Cloning, sequencing, and analysis of the griseusin polyketide synthase gene cluster from Streptomyces griseus.
A fragment of DNA was cloned from the Streptomyces griseus K-63 genome by using genes (act) for the actinorhodin polyketide synthase (PKS) of Streptomyces coelicolor as a probe. Sequencing of a 5.4-kb segment of the cloned DNA revealed a set of five gris open reading frames (ORFs), corresponding to the act PKS genes, in the following order: ORF1 for a ketosynthase, ORF2 for a chain length-deter...
متن کاملCloning, sequencing, and functional analysis of an iterative type I polyketide synthase gene cluster for biosynthesis of the antitumor chlorinated polyenone neocarzilin in "Streptomyces carzinostaticus".
Neocarzilins (NCZs) are antitumor chlorinated polyenones produced by "Streptomyces carzinostaticus" var. F-41. The gene cluster responsible for the biosynthesis of NCZs was cloned and characterized. DNA sequence analysis of a 33-kb region revealed a cluster of 14 open reading frames (ORFs), three of which (ORF4, ORF5, and ORF6) encode type I polyketide synthase (PKS), which consists of four mod...
متن کاملA dedicated phosphopantetheinyl transferase for the fredericamycin polyketide synthase from Streptomyces griseus.
Polyketide synthases cannot be functional unless their apo-acyl carrier proteins (apo-ACPs) are post-translationally modified by covalent attachment of the 4'-phosphopantetheine group to the highly conserved serine residue, and this reaction is catalyzed by phosphopantetheinyl transferases (PPTases). Cloning and sequence analysis of the 33-kb fredericamycin (FDM) biosynthetic gene cluster from ...
متن کاملSelf-cloning in Streptomyces griseus of an str gene cluster for streptomycin biosynthesis and streptomycin resistance.
An str gene cluster containing at least four genes (strR, strA, strB, and strC) involved in streptomycin biosynthesis or streptomycin resistance or both was self-cloned in Streptomyces griseus by using plasmid pOA154. The strA gene was verified to encode streptomycin 6-phosphotransferase, a streptomycin resistance factor in S. griseus, by examining the gene product expressed in Escherichia coli...
متن کاملPrecise cloning and tandem integration of large polyketide biosynthetic gene cluster using Streptomyces artificial chromosome system
BACKGROUND Direct cloning combined with heterologous expression of a secondary metabolite biosynthetic gene cluster has become a useful strategy for production improvement and pathway modification of potentially valuable natural products present at minute quantities in original isolates of actinomycetes. However, precise cloning and efficient overexpression of an entire biosynthetic gene cluste...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1994
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.176.9.2627-2634.1994