Key points are not available for this paper at this time.
A plasmid determining resistance to erythromycin, lincomycin, and vernamycin B(alpha) was isolated from a strain of Streptococcus pyogenes. The plasmid has a molecular weight of approximately 17 x 10(6) and is present to the extent of one to two copies per chromosomal genome equivalent.
Clewell et al. (1974) studied this question.