Actinoperylone, a novel perylenequinone-type shunt product, from a deletion mutant of the actVA-ORF5 and ORF6 genes for actinorhodin biosynthesis in Streptomyces coelicolor A3(2)

A novel shunt product, actinoperylone, isolated from a deletion mutant of the actVA-ORF5 gene indicates the essential role of ActVA-ORF5 in the oxygen introduction at C-6.