ludwig@ORCHID.UCSC.EDU (07/26/90)
My colleague Jane Silverthorne purchased the E. coli SURE strain from Stratagene. They are touting this strain as the ultimate host for recombinant DNA. We have found that this strain carries a single copy of Tn5. Obviously, this has important ramifications for many recombinant DNA experiments. Please be advised. Bob Ludwig Sinsheimer Laboratories University of California, Santa Cruz