REP522 (DF0001057)

REP522 -- largely palindromic, unclassified interspersed repeat


REP522 was originally called a telomeric satellite, even though in human, this 1.8Kb sequence is not found in tandem arrays, nor is it particularly restricted to telomeric regions. The central 1/3rd forms a >600bp imperfect palindrome. Other parts of these element display similarity to both LINE and LTR retrotransposons; to cut-and-paste DNA transposons; even to a Helitron! It is unclear how much of this is chimeric homology vs false positive.


  1. Of orphons and UHOs. Delimitation of the germline repertoire of human immunoglobulin kappa genes.
    Röschenthaler F, Schäble KF, Thiebe R, Zachau HG;
    Biol Chem Hoppe Seyler 1992;373:177-186 Pubmed


Accession Name Wikipedia
Type Unknown
Class Unknown
Superfamily Undefined

Note: Uncertain classification.

Hit Statistics

The model is 1817 positions long. The average length of non-redundant hits to the model is 431.6. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Homo sapiens 368 870 341 814

External Database Links

  • Repbase : REP522 [Requires Repbase registration]