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Title: | Complex structural rearrangement features suggesting chromoanagenesis mechanism in a case of 1p36 deletion syndrome |
Authors: | ZANARDO, Evelin Aline; PIAZZON, Flavia Balbo; DUTRA, Roberta Lelis; DIAS, Alexandre Torchio; MONTENEGRO, Marilia Moreira; NOVO-FILHO, Gil Monteiro; COSTA, Thais Virginia Moura Machado; NASCIMENTO, Amom Mendes; KIM, Chong Ae; KULIKOWSKI, Leslie Domenici |
Citation: | MOLECULAR GENETICS AND GENOMICS, v.289, n.6, p.1037-1043, 2014 |
Abstract: | Genome rearrangements are caused by the erroneous repair of DNA double-strand breaks, leading to several alterations that result in loss or gain of the structural genomic of a dosage-sensitive genes. However, the mechanisms that promote the complexity of rearrangements of congenital or developmental defects in human disease are unclear. The investigation of complex genomic abnormalities could help to elucidate the mechanisms and causes for the formation and facilitate the understanding of congenital or developmental defects in human disease. We here report one case of a patient with atypical clinical features of the 1p36 syndrome and the use of cytogenomic techniques to characterize the genomic alterations. Analysis by multiplex ligation-dependent probe amplification and array revealed a complex rearrangement in the 1p36.3 region with deletions and duplication interspaced by normal sequences. We also suggest that chromoanagenesis could be a possible mechanism involved in the repair and stabilization of this rearrangement. |
Appears in Collections: | Artigos e Materiais de Revistas Científicas - FM/MPE Artigos e Materiais de Revistas Científicas - HC/ICr Artigos e Materiais de Revistas Científicas - HC/InCor Artigos e Materiais de Revistas Científicas - LIM/03 Artigos e Materiais de Revistas Científicas - LIM/36 |
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