(a) Top: Schematic illustration of the experimental design for the translocation assay in CH12F3-2A cells. Bottom: PCR amplification scheme to detect IgH/c-Myc chromosomal translocations. Triangles represent the positions of nested PCR primers used to amplify the rearranged regions. The position of the Myc probe used in the Southern blot hybridization is shown as a horizontal black bar. 