Recurrence of OTT–MAL fusion in t(1;22) of infant AML‐M7
- 8 November 2001
- journal article
- research article
- Published by Wiley in Genes, Chromosomes and Cancer
- Vol. 33 (1) , 22-28
- https://doi.org/10.1002/gcc.1208
Abstract
Translocation t(1;22)(p13;q13) is associated with a peculiar subtype of acute megakaryocytic leukemia (M7) occurring in infants. We have recently characterized a fusion gene, OTT–MAL, resulting from this translocation. We now report three additional cases and show that this gene fusion is present in all five t(1;22) cases studied to date. Nucleotide sequence analysis of two translocation breakpoints suggests a nonhomologous end joining mechanism in the genesis of this translocation and reveals a noncanonical topoisomerase II‐like consensus sequence within the OTT gene. FISH and PCR techniques described in this work are useful for identifying t(1;22) associated with M7.Keywords
Funding Information
- Inserm
- Ligue Nationale Contre le Cancer
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