Gnm. Ferreira et al., A COMPARISON OF GEL-FILTRATION CHROMATOGRAPHIC SUPPORTS FOR PLASMID PURIFICATION, Biotechnology techniques, 11(6), 1997, pp. 417-420
Two gel filtration chromatographic supports, Superose 6 and Sephacryl
S1000 SF, were used to purify supercoiled plasmids using a 4.8 kb plas
mid as a model. Both supports purified the plasmid from RNA and other
small molecular weight contaminants, as shown by agarose electrophores
is and ion exchange HPLC, with an overall yield of 70%. Sephacryl S100
0 SF was the better support as it resolved supercoiled, relaxed, linea
r and concatamer plasmid forms, and chromosomal DNA.