ChemiComp GT115 ChemiComp GT115 cells are frozen E. coli chemically competent cells. These cells are specifically designed for cloning and propagation of plasmids containing hairpin structures and the R6K gamma origin of replication, such as pCpG-siRNA plasmids. Transformation efficiency: 0.1-1 x 109 cfu/µg GT115 Genotype: F- mcrA ∆(mrr-hsdRMS-mcrBC) φ80lacZ∆M15 ∆lacX74 recA1 rspL (StrA) endA1 ∆dcm uidA(∆MluI)::pir-116 ∆sbcC-sbcD Shipped on dry ice