The Z-Competent™ E. coli strains are premade, chemically competent cells for simple and highly efficient DNA transformation. Z-Competent™ E. coli cells are made chemically competent by a method that completely eliminates the need for heat shocking and related procedures. For transformation, simply mix DNA with cells and then spread onto solid medium − Mix & Go! The premade Z-Competent™ cells are highly efficient (> 108 transformants / µg pUC19) and can be used for cloning, sub-cloning, PCR fragment cloning, library construction, etc. Premade Z-Competent™ cells are supplied as a pack of 10 convenient 100 µl/tube single use aliquots or in a 96-tube format with removable 8-tube strips for your high-throughput transformation needs.