Due to the holidays our last domestic shipping date will be November 25th. We will resume regular scheduled shipments December 1st.
Chemically Competent Cells
van der Heijden et al.
reported 12.85% of an HPV pDNA vaccine plasmid contained an IS2 although none had been detected in their master cell bank. They calculated that “it would have to be at a frequency below 1 in 10,000” to be undetectable. This study shows that massive expansion of IS elements from a very low starting level can be catastrophic. The authors conclude that the only way to avoid the problem is to use an IS-free host. Learn More
Protect Your Plasmids From Mutations
MDS42 LowMut - Lowest Mutation Rate of ANY E.coli Learn More