
Genomic organization of the FHIT/FRA3B region. The FHIT sequence is shown from intron 3 through intron 6. The position of the unstable FRA3B region is indicated by a hatched bar. The major breakpoint clusters are marked by black blast symbols within the 2150-bp EcoRI fragment of the proximal region and the 1899-bp AflIII fragment of the distal region. Solid circles represent the locations of Alu elements. (E) EcoRI; (A) AflIII.











