Around half of the genome is made up of transposable elements or 'jumping genes' that derive from ancient viral integrations. They persist in various states of decay like an old fashioned 'pull your ...

Nearly 20% of human DNA is composed of LINE-1 (L1) retrotransposons. These mobile genetic elements dominate the evolutionary history of most mammalian genomes. Humans are no exception: L1-encoded ...

Genomes are hotbeds of evolutionary conflict. Perhaps nothing speaks to this idea better than the war raging between retrotransposons and their host genomes. Retrotransposons, often referred to as ...

Although many retrotransposons are found in the Drosophila genome, copia is by far the most frequently expressed one. Previous research has shown that copia predominantly targets the male germ line.

Based on previous studies in fruit flies, Andrea Schorn and Rob Martienssen of Cold Spring Harbor Laboratory thought the answer to what protects vulnerable mouse embryo genomes might lie in small RNAs ...

The key to dating the insertion of these elements is their LTRs — characteristic features that flank the internal region of a retrotransposon. Every family of retrotransposons has different (non-cross ...

Scientists at St. Jude Children's Research Hospital have revealed previously unappreciated roles for the retrotransposon LINE-1 in shaping the cancer genome structure and regulation. Retrotransposons ...

Researchers have examined L1 (or LINE-1) retrotransposons: DNA sequences which can ‘copy and paste’ their genetic code around the genome. By breaking up genes, L1s can be responsible for some rare ...

Retrotransposons are evolutionarily ancient genes that “jump” around the human genome leaving a slew of repeat nucleotide sequences in their wake. These repeats can disturb normal gene function.

Scientists at St. Jude Children's Research Hospital have revealed previously unappreciated roles for the retrotransposon LINE-1 in shaping the cancer genome structure and regulation. Retrotransposons ...

Like its viral cousins, a somewhat parasitic DNA sequence called a retrotransposon has been found borrowing the cell's own machinery to achieve its goals. In a new work appearing online Wednesday in ...