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. 2008 Mar 27;2:275–287. doi: 10.4137/cmo.s615

Figure 3. Expression of CD19 epitopes on CD19 transfectants.

Figure 3

To confirm that all three antibodies detected CD19 epitopes, FMC63, B4 and Leu12 antibodies were used to stain CD19 transfectants. The transfectants were shown to express the CD19 epitope as detected by binding of each antibody. Appropriate isotype controls were performed for each anti-CD19 antibody. The observed staining with Leu12 indicates that in transfectants, unlike MM cells but similar to B cells from healthy donors, the Leu12 epitope is exposed.