hAT elements are Class 2 transposons.
They are widespread in eukaryotes but not very abundant. Upon insertion, they create a 8 bp Target site duplication (TSD).
TIR5: Terminal inverted repeat
Function: Contains motifs that are recognized and bound by the transposase. Essential for transposition.
Protein motifs:
TASE: Transposase
Function: Required for excision and insertion
Protein motifs: DDE
TIR3: Terminal inverted repeat
Function: Contains motifs that are recognized and bound by the transposase. Essential for transposition.
Protein motifs:
| Taxonomic group | Total elements |
|---|---|
| Embryophyta | 14 |
| Plantae | 53 |