title: Jumping translocations.
abstract: Jumping translocations (JT) are uncommon constitutional or acquired chromosome rearrangements involving one donor and several recipient chromosomes. They occur in various pathologic conditions and the mechanism of their formation remains elusive. A review of the literature showed that the major localizations of the breakpoints of JTs in human samples are nonrandomly located in pericentromeric and telomeric regions of chromosomes. Interestingly, comparison of the localization of the chromosomal breakpoints and of presence of interstitial DNA repeats showed differences between constitutional and acquired JTs suggesting differences in the mechanisms for the genesis of JTs and their consequences.
authors: EMI 0210 INSERM, Hôpital Necker-Enfants Malades, Paris, France. berger@necker.fr
authors: Roland
authors: R
authors: Berger
authors: Olivier A
authors: OA
authors: Bernard
mesh_terms: D002503:Centromere; D019457:Chromosome Breakage; D002873:Chromosome Fragility; D006801:Humans; D012091:Repetitive Sequences, Nucleic Acid; D016615:Telomere; D014178:Translocation, Genetic