New recurrent deletion, del(11)(p12p13), in pediatric T-ALL. (A) Chromosome 11 ideogram and corresponding BAC array-CGH plot of test DNA/control DNA ratios (blue tracing) versus the dye-swap experiment (red tracing) for T-ALL patients 1950 (left panel) and 2720 (right panel). (B) Overview of BAC array-CGH results for the 11p12-11p13 region for the 4 DCOG and the 2 COALL T-ALL patients with del(11)(p12p13). The BAC clones present on the DNA array and located on chromosome bands 11p12-11p13 are shown. Specific genes located in this region are indicated. Depicted genome positions are based on the UCSC Genome Browser at http://genome.ucsc.edu/.