Abstract
Deletions in CEBPA gene which involved a direct repeat of at least 2 bp in acute myeloid leukemia, myelodysplastic syndrome and non-Hodgkin's lymphoma patients and in healthy individuals are described. This class of deletions is characterised by the loss of one of two same repeats at the ends of deleted sequence.
A mechanism for deletion formation between two repetitive sequences can be recombination events of adjacent DNA sequences in the repair process.