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. 1983 Aug;155(2):866–871. doi: 10.1128/jb.155.2.866-871.1983

Bacteriocin from Bacillus megaterium ATCC 19213: comparative studies with megacin A-216.

M A Von Tersch, B C Carlton
PMCID: PMC217761  PMID: 6409885

Abstract

A bacteriocin produced by Bacillus megaterium ATCC 19213 was identified, purified, and compared with megacin A from B. megaterium 216. The ATCC 19213 bacteriocin was inducible with mitomycin C and showed phospholipase A activity. Both megacin A-216 and megacin A-19213 contained two dissimilar polypeptide subunits. Megacin A-216 contains a 30,000-dalton alpha subunit and a 15,000-dalton beta subunit. Megacin A-19213 is composed of an alpha subunit 18,000 daltons in mass and a beta subunit about 7,500 daltons in mass. No sequence similarities between alpha and beta subunits of either megacin were detected. The two megacins were further distinguished by quantitative differences in activity spectra and by immunodiffusion analyses.

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Selected References

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