TREP, the TRansposable Elements Platform

Superfamily Mariner                   DTT

Full classification: DNA-transposon, TIR, Mariner

Mariner elements are Class 2 transposons.

They are well characterised in plants. Non-autonomous derivatives (Stowaway MITEs) are very abundant in grasses, less in dicots. The terminal repeats usually end in CTCCTCCC (5' end) and GGGAGGAG (3' end).
Upon insertion, they create a 2 bp Target site duplication (TSD).

Structure of Mariner elements

Sequence domains

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:

639 Mariner Download all 'DTT' elements in total_TREP database elements from the following taxa are in the total_TREP database:

Taxonomic group	Total elements
FUNGI	8
PLANTAE	631

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