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Title: The breakpoint region of the most common isochromosome, i(17q), in human neoplasia is characterized by a complex genomic architecture with large, palindromic, low-copy repeats
Authors: Barbouti, A ×
Stankiewicz, P
Nusbaum, C
Cuomo, C
Cook, A
Hoglund, M
Johansson, B
Hagemeijer-Hausman, Anne
Park, SS
Mitelman, F
Lupski, JR
Fioretos, T #
Issue Date: Jan-2004
Publisher: Univ chicago press
Series Title: American Journal of Human Genetics vol:74 issue:1 pages:1-10
Abstract: Although a great deal of information has accumulated regarding the mechanisms underlying constitutional DNA rearrangements associated with inherited disorders, virtually nothing is known about the molecular processes involved in acquired neoplasia-associated chromosomal rearrangements. Isochromosome 17q, or "i( 17q)," is one of the most common structural abnormalities observed in human neoplasms. We previously identified a breakpoint cluster region for i(17q) formation in 17p11.2 and hypothesized that genome architectural features could be responsible for this clustering. To address this hypothesis, we precisely mapped the i( 17q) breakpoints in 11 patients with different hematologic malignancies and determined the genomic structure of the involved region. Our results reveal a complex genomic architecture in the i( 17q) breakpoint cluster region, characterized by large (similar to 38 - 49-kb), palindromic, low-copy repeats, strongly suggesting that somatic rearrangements are not random events but rather reflect susceptibilities due to the genomic structure.
URI: 
ISSN: 0002-9297
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Clinical Genetics Section (-)
× corresponding author
# (joint) last author

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