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Sleeping Beauty (SB), a member of the Tc1/mariner superfamily of transposable elements, is the only active DNA-based transposon system of vertebrate origin that is available for experimental manipulation. We have been using the SB element as a research tool to investigate some of the cis and trans-requirements of element mobilization, and mechanisms that regulate transposition in vertebrate species...
Members of the Tc1/mariner superfamily of transposons isolated from fish appear to be transpositionally inactive due to the accumulation of mutations. Molecular phylogenetic data were used to construct a synthetic transposon, Sleeping Beauty, which could be identical or equivalent to an ancient element that dispersed in fish genomes in part by horizontal transmission between species. Aconsensus sequence...
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