and ligated into plasmid DNA digested with compatible restriction sites, or by using the In-Fusion HD Cloning Kit (Clontech) according to the manufacturer's recommendations. The plasmid was transformed into competent DH5α Escherichia coli (E. coli) (Invitrogen, Life Technologies) which were than cultivated on solid LB agar media containing 100 μg × mL−1 ampicillin. Linear transformation cassettes were extracted from plasmids by digestion with restriction enzymes cutting on both sides of the desired insert and purification from gel (Fig. 1)