Description

XL1-Blue Competent Cells are versatile for routine cloning and allow blue-white color screening. Designed to provide a host for optimal propagation of both plasmid and lambda phage vectors Available in a range of cloning efficiencies Available as economical subcloning-grade Competent Cells for routine procedures when DNA is not limited Available as supercompetent cells in a variety of strains at efficiencies greater than 1 x 10^9 transformants/µg XL-1 Blue Competent Cells for routine cloning allow blue-white color screening, single-strand rescue of phagemid DNA, and preparation of high-quality plasmid DNA. Derivatives enable higher transformation efficiency, transformation of methylated DNA, choice of antibiotic resistance, and no F´ episome. For the greatest number of colonies, use electroporation-competent XL1-Blue cells or the high-efficiency derivative, XL2-Blue ultracompetent cells. When ultimate efficiency is not as critical, try the supercompetent-grade, competent-grade, or the subcloning grade competent cells. This product is only available to U.S. Domestic Customers. For research use only, not to be used in diagnostic procedures.