It defines a new locus in 11p13-delta J, which is close to the Wilms tumor gene and the breakpoint cluster region (TCL2) of the frequent t(11;14)(p13;q11) translocation in acute T-cell leukemia.
This suggested a link between the T-ALLbcr and the Wilms' tumour predisposition locus (WT) since constitutional 11p13 deletions predispose to Wilms' tumour.