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We present a leukemia case that exhibits a chromosomal translocation t(11;16)(q23;q23), which results in the expression of a novel KMT2A fusion gene. This novel fusion, KMT2A-USP10, was found in a relapse of acute myeloid leukaemia M5a. USP10 belongs to a protein family that deubiquitinates a distinct set of target proteins, and thus, increases the steady state protein levels of its target subproteome. One of the USP10 targets is TP53. Wildtype TP53 is usually rescued from proteasomal degradation by USP10. As most KMT2A leukemias display wildtype p53 alleles, one might argue that the disruption of an USP10 allele can be classified as a pro-oncogenic event.
This article was published in the following journal.
Name: Genes, chromosomes & cancer
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