X9a_DNA (DF0001214)

Conserved repeat present in placental mammals and marsupials.


TA or something longer at termini may be the TSD. 121 bp (near)-perfect TIRs. Within the TIRs pos 34-71 (and thus 414-451) are hairpins. No relationship with X9b_DNA or X9c_DNA, but closely related to UCON58.


  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 DNA Transposon Article
Class Cut and Paste
Superfamily Undefined

Hit Statistics

The model is 484 positions long. The average length of non-redundant hits to the model is 249.2. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Mus musculus 204 232 122 130
Homo sapiens 1086 1456 698 835

External Database Links

  • Repbase : X9a_DNA [Requires Repbase registration]