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Tn5 Transposase

Transposase (Tnp) Tn5 is a member of the RNase superfamily of proteins which includes retroviral integrases. Tn5 can be found in Shewanella and Escherichia bacteria. The transposon codes for antibiotic resistance to kanamycin and other aminoglycoside antibiotics. Transposition works through a “cut-and-paste” mechanism, where the Tn5 excises itself from the donor DNA and inserts into a target sequence, creating a 9-bp duplication of the target.

DNA transposition is a useful model with which to understand other types of protein-DNA interactions such as retroviral DNA integration and the DNA cleavage events involved in immunoglobulin gene formation, and because Tn5-derived tools are useful adjuncts in genetic experimentation. Moreover, Tn5 is utilized in genome sequencing for fragmentation of the DNA, in the technique called ATAC-seq. A great advancement in library preparation was the introduction of a hyperactive variant of the Tn5 transposase that mediates the fragmentation of double-stranded DNA and ligates synthetic oligonucleotides at both ends in a 5-min reaction.

Tn5 Transposase

Creative Biogene provides robust Tn5 transposase for accelerating your research, especially tagmentation-based sequencing library construction.

For research use only. Not intended for any clinical use.

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