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. 1999 Mar;63(3):563-6.
doi: 10.1271/bbb.63.563.

Cloning of oxetanocin A biosynthetic and resistance genes that reside on a plasmid of Bacillus megaterium strain NK84-0128

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Free article

Cloning of oxetanocin A biosynthetic and resistance genes that reside on a plasmid of Bacillus megaterium strain NK84-0128

M Morita et al. Biosci Biotechnol Biochem. 1999 Mar.
Free article

Abstract

Bacillus megaterium strain NK84-0218 produces a potent antiviral antibiotic, oxetanocin A, which has an oxetanosyl-N-glycoside linkage to an adenine moiety. However, the oxetanocin A productivity of the original strain was unstable and low. In this study, oxetanocin A productivity and resistance was shown to be lost simultaneously when a 51.5-kb plasmid, pOXT1, was cured during cultivation. The deficiency of oxetanocin A productivity and resistance was restored by re-introduction of the pOXT1 plasmid into the cured strain. By a cloning experiment it was shown that a 6.8-kb BglI-D fragment of the pOXT1 plasmid was responsible for oxetanocin A productivity and resistance.

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