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Tn5 tagments and transports oligos to single-strand DNA for high throughput sequencing

ABSTRACT: Tn5 transposon tagments double-strand DNA and RNA/DNA hybrid to generate nucleic acids ready to be amplified for high throughput sequencing. The nucleic acid substrates of Tn5 transposon need to be explored to increase the applications of Tn5. Here, we find that Tn5 transposon is able to transport oligos into the 5’ end of single-strand DNA, which are more than 140 base pairs of nucleic acids. Based on this property of Tn5, we develop a tagmentation-based and ligation-enabled single-strand DNA sequencing method, TABLE-seq. Through a series of reaction temperature, time, and enzyme concentration tests, we managed to apply this TABLE-seq to strand-specific RNA sequencing, starting with as low as 30 picograms of total RNA. Moreover, compared with traditional dUTP based strand-specific RNA sequencing, this method detects more genes, has higher strand-specificity, and shows more evenly distributed reads across genes. Together, our results provide insights into the properties of Tn5 transposons and expand the applications of Tn5 in cutting-edge sequencing techniques.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE208316 | GEO | 2023/01/30

REPOSITORIES: GEO

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