Moreover, analysis of the Tald rearrangement by DNA-based PCR in four patients with SIL-TAL-1 fusion revealed the type A (Tald1) rearrangement in all cases.     ///    "In this study, we established a ""nested"" retrotranscriptase/polymerase chain reaction (RT/PCR) technique which allows detection of the SIL-TAL-1 transcriptional expression. "    ///    "Sequence analysis demonstrated the presence of N region and non-random ""P"" nucleotide, as well as base deletions at the genomic SIL-TAL-1 joining site. "    ///    RT/PCR detection of SIL-TAL-1 fusion mRNA in Chinese T-cell acute lymphoblastic leukemia (T-ALL)..     ///    "In about 20% of T-cell acute lymphoblastic leukemias (T-ALL), this gene is disrupted in its 5' portion by a site-specific 100-kg deletion and is fused with the 5' part of the SIL gene, to form SIL-TAL-1 chimeric gene. "