Streptomyces coelicolor A3(2) is an extensively studied model organism for the genetic studies of Streptomycetes – a genus known for the production of a vast number of bioactive compounds and complex regulatory networks controlling morphological differentiation and secondary metabolites production. We present the discovery of a presumptive product of the Cpk polyketide synthase. We have found that on the rich medium without glucose S. coelicolor A3(2) produces a yellow compound secreted into the medium. We have proved by complementation that production of the observed yellow pigment is dependent on cpk gene cluster previously described as cryptic type I polyketide synthase cluster. The pigment production depends on the medium composition, does not occur in the presence of glucose, and requires high density of spore suspension used for inoculation.

Journal Section:
Short Communication
Keywords:
Streptomyces coelicolor, Polyketide, Modular polyketide synthase
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© 2010 S. Karger AG, Basel
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2010
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