Mutation and cloning of eryG, the structural gene for erythromycin O-methyltransferase from Saccharopolyspora erythraea, and expression of eryG in Escherichia coli.

Abstract excerpt

A mutant strain derived by chemical mutagenesis of Saccharopolyspora erythraea (formerly known as Streptomyces erythreus) was isolated that accumulated erythromycin C and, to a lesser extent, its precursor, erythromycin D, with little or no production of erythromycin A or erythromycin B (the 3"-O-methylation products of erythromycin C and D, respectively). This mutant lacked detectable erythromycin...

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