Term Name:	erythromycin 3''-o-methyltransferase activity
Synonyms:	erythromycin C 3''-o-methyltransferase activity, erythromycin D 3''-o-methyltransferase activity
Definition:	Catalysis of the reaction: erythromycin C + S-adenosyl-L-methionine = erythromycin A + H+ + S-adenosyl-L-homocysteine. Also converts erythromycin D into erythromycin B.
Ontology:	GO: Molecular Function [GO:0102307]    QuickGO    AmiGO