L1-4_DR (DF0002209)

L1-like non-LTR retrotransposon from zebrafish


L1-4_DR is a family of L1-like non-LTR retrotransposon. This family was active recently (no stop codons in ORF1; a few stop-codons in ORF2). It encodes two proteins: the 459-aa L1-4_DR1p (positions 171-1547) and the 1294-aa L1-4_DR2p (positions 1577-5461, a conceptual translation). These proteins are most close to corresponding proteins encoded by other L1-like elements. L1-4_DR1p is a putative RNA/DNA binding protein, and L1-4_DR2p is composed of the AP endonuclease (aa positions 1-200) and reverse transcriptase domains. This is the same element as the leucine tRNA-gene spacer-specific non-LTR retrotransposon family DewaDr1 [1].


  1. Cross-genome screening of novel sequence-specific non-LTR retrotransposons: various multicopy RNA genes and microsatellites are selected as targets.
    Kojima KK, Fujiwara H;
    Mol Biol Evol 2004;21:207-217. Pubmed


Accession Name Wikipedia
Type Retrotransposon Article
Class LINE
Superfamily L1-Tx1

Hit Statistics

The model is 5548 positions long. The average length of non-redundant hits to the model is 2632.1. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Danio rerio 52 1864 48 1362

External Database Links

  • Repbase : L1-4_DR [Requires Repbase registration]