Compound Ds-l4 element with trapped extraneous sequences between its termini. The Ds-l4-483 element on chromosome 10 is 7344-bp in length. Bases 1-987 of Ds-l4-483 correspond to a regular Ds-l4 element with perfect TIRs flanked by a TSD. Following this are a fragment of an LTR-retrotransposon polyprotein (988 to 1650), a transcribed sequence from chromosome 5 (1651 to 6537), and a duplicate, but truncated, copy of the first Ds-l4 in this compound element, ending in a perfect TIR and an additional copy of the TSD (6538 to 7344).
Du et al. BMC Genomics 2011 12:588 doi:10.1186/1471-2164-12-588