Long interspersed nuclear element

Long interspersed nuclear elements (LINEs) (also known as long interspersed nucleotide elements or long interspersed elements) are a group of non-LTR (long terminal repeat) retrotransposons that are widespread in the genome of many eukaryotes. LINEs contain an internal Pol II promoter to initiate transcription into mRNA. They usually encode an RNA/DNA binding protein (ORF1) and a combined reverse transcriptase and endonuclease (ORF2).

Source: Wikipedia — Long interspersed nuclear element (CC BY-SA 4.0)