Haydock SF, Dowson JA, Dhillon N, Roberts GA, Cortes J, Leadlay PF (1991)
Cloning and sequence analysis of genes involved in erythromycin biosynthesis in Saccharopolyspora erythraea: sequence similarities between EryG and a family of S-adenosylmethionine-dependent methyltransferases.
Molecular & General Genetics 230: 120

Cortes J, Haydock SF, Roberts GA, Bevitt DJ, Leadlay PF (1990)
An unusually large multifunctional polypeptide in the erythromycin-producing polyketide synthase of Saccharopolyspora erythraea
Nature 348: 176