Biosynthesis of the antitumor antibiotic CC-1065 by streptomyces zelensis

Laurence H. Hurley, J. Stefan Rokem

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Abstract

The biosynthesis of the antitumor antibiotic, CC-1065, has been investigated by radioactive isotope techniques, in combination with chemical degradation of CC-1065. Tyrosine, dopa, serine and methionine (S-CH3 group) have been shown to be precursors of CC-1065. Tyrosine is proposed to be a precursor of all three benzodipyrrole subunits, while dopa is only apparently incorporated into subunits B and C. Serine is postulated to contribute three 2C units, with loss of C-l, to all three subunits of CC-1065. The S-CH3 group of methionine probably contributes four C-l units to CC-1065 of which one is incorporated with considerable loss of tritium, most probably into the cyclopropane ring of subunit A.

Original languageEnglish (US)
Pages (from-to)383-390
Number of pages8
JournalThe Journal of Antibiotics
Volume36
Issue number4
DOIs
StatePublished - Jan 1983
Externally publishedYes

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ASJC Scopus subject areas

  • Pharmacology
  • Drug Discovery

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