X21_LINE (DF0001216)

Repetitive element conserved in all mammals.


Represents the C-terminus of the ORF and a bit of the 3UTR of the L3-continuum of CR1 elements.


  1. Distinct groups of repetitive families preserved in mammals correspond to different periods of regulatory innovations in vertebrates.
    Jurka J, Bao W, Kojima KK, Kohany O, Yurka MG;
    Biol Direct 2012;7:36-36. Pubmed


Accession Name Wikipedia
Type Retrotransposon Article
Class LINE
Superfamily CR1

Hit Statistics

The model is 284 positions long. The average length of non-redundant hits to the model is 190.7. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Mus musculus 37 57 23 28
Homo sapiens 43 97 32 46

External Database Links

  • Repbase : X21_LINE [Requires Repbase registration]