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Image: DNA Transposon

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Description: A.Structure of DNA transposons (Mariner type). Two inverted tandem repeats (TIR) flank the transposase gene. Two short tandem site duplications (TSD) are present on both sides of the insert. B. Mechanism of transposition: Two transposases recognize and bind to TIR sequences, join together and promote DNA double-strand cleavage. The DNA-transposase complex then inserts its DNA cargo at specific DNA motifs elsewhere in the genome, creating short TSDs upon integration.
Title: DNA Transposon
Credit: Own work
Author: Mariuswalter
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
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