EXPANDER1_DR (DF0003503)

RTE-like non-LTR retrotransposon from zebrafish


EXPANDER1_DR is a family of RTE-like non-LTR retrotransposons and it was active in zebrafish a few million years ago. There are several thousand copies of EXPANDER1_DR fossilized in the zebrafish genome; they are ~91% identical with the consensus sequence. The 5' portion of EXPANDER1_DR is incomplete. The consensus encodes a 3' portion of the reverse transcriptase. EXPANDER1_DR is 87% identical to EXPANDER1 from the fugu genome. Such a high nucleotide identity between non-LTR retrotransposons from the species diverged more than 100 million years ago strongly indicates that horizontal transfer events were involved in evolution of EXPANDERs. The full-length sequence is >74% identical to RTE elements in fugu, medaka, stickleback, and even lamprey.


Accession Name Wikipedia
Type Retrotransposon Article
Class LINE
Superfamily RTE

Hit Statistics

The model is 3365 positions long. The average length of non-redundant hits to the model is 490.2. This table shows the number of hits above score thresholds:

Species Gathering Trusted
non-redundant all hits non-redundant all hits
Danio rerio 5090 7732 4771 6877

External Database Links