XRCC4 and acute lymphoblastic leukemia: Human SplicingFinder 3.1 predicted that the deleted allele of rs28360071 ispotentially associated with the activation of a 5’ cryptic splice site in intron3 of XRCC4. The sequencing of cDNA did not show any differenceson the splicing process for the rs28360071 genotypes. Our results suggest thatthe deleted allele for rs28360071 increases the risk for ALL withKMT2A-r, but not by modifying the XRCC4expression levels or its structure.