Fig. 1From: Escherichia coli recombinant sperm immobilizing factor RecX as a potential vaginal contraceptiveEcoRI-digested pSMART-LCAmp plasmids isolated from transformants carrying E.coli DNA fragments (p-SIT) and expressed sperm immobilizing activity. Lanes 1, 2, 3, 4 and 5 correspond to digested plasmid from different transformants, the size of the DNA fragments generated by the digestion correspond to the DNA size ladder.Back to article page