ElectroSHOX Competent Cells are highly efficient E. coli, ideal for the construction of cDNA or genomic libraries using electroporation. The lacZ mutation allows blue/white color screening and ?-complementation of recombinants. The recA1 and endA1 markers minimize recombination events and improve the quality and yield of plasmid DNA. In order to facilitate cloning of methylated genomic DNA, ElectroSHOX lacks E. coli K restriction-modification systems, and is ideal for the transformation of large plasmids (>30Kb) Comparable to DH10B. Efficiency: 1 x 10e10