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Biochem Biophys Res Commun. 1983 Oct 31;116(2):751-8.

Peptide antibiotic subtilin is synthesized via precursor proteins.


Biogenesis of subtilin, an antimicrobial peptide produced by Bacillus subtilis ATCC 6633, was studied in growing cells. Pulse-chase labeling experiments with [35S]cysteine revealed the presence of precursor proteins of subtilin. The synthesis of both precursor proteins and subtilin was inhibited by inhibitors of protein and RNA synthesis. When the precursor proteins were incubated with crude extracts of the organism in vitro, they were converted to subtilin. Pepstatin and phenylmethylsulfonyl fluoride in combination inhibited this conversion.

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