Western blot analysis of different CD44v6 antibodies using 500 ng (A) and 250 ng (B) BSA-CD44v6 conjugate. Lanes 1–6, monoclonal antibody clones 1H1, 1H2, 2A12, 2G11, 3H3, and 3H7, respectively; Con., BSA alone blotted onto the membrane and tested for reactivity with 3H7 monoclonal antibody clone (negative control); M, marker.