Each pBAD TOPO™ TA Expression Kit contains two boxes and the LMG194 E. coli stab. The pBAD TOPO™ TA box contains all of the reagents necessary for PCR (except Taq polymerase), including 200 ng of topoisomerase I-activated pBAD-TOPO™ vector, sterile water, dNTPs, 10X PCR buffer, salt solution, control template and primers, 20% L-arabinose, pBAD primers for sequencing or PCR screening, and an expression control plasmid. Store at -20°C. The One Shot™ box contains all of the reagents necessary for transformation, including single-use 50 μl aliquots of One Shot™ TOP10 Chemically Competent E. coli, S.O.C. medium, and a supercoiled control plasmid. Store One Shot™ cells at -80°C. Store the LMG194 E. coli stab at 2 - 8°C. All reagents are guaranteed stable for 6 months when properly stored.