BirA-transformed Competent E. coli cells - 10 vials

BirA-transformed Competent E. coli cells are supplied as 10 x 50 µl vials. Strain BL21, a chemically competent E. coli B strain, contains an IPTG-inducible BirA expression plasmid and constitutively-expressed streptomycin/spectinomycin resistance gene. These cells are compatible with most cloning vectors and are suitable for expression and biotinylation of recombinant proteins using AviTag™ technology.