Fig. 3

Agarose gel electrophoresis of PCR products obtained from normal colon, breast tumor, colon tumor, liver tumor and lung tumor individual plaques after nine rounds of selection with B-DAP immobilized on a neutravidin-coated plate. The DNA inserts, which were amplified using generic T7 primers, were also digested with HinfI to produce unique DNA fingerprints of each clone. Clones that appeared more than once were sequenced