Efficient synthesis and replication of diverse sequence libraries composed of biostable nucleic acid analogues

文献情報

出版日 2022-08-30

DOI 10.1039/D2CB00035K

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著者

John R. D. Hervey, Niklas Freund, Gillian Houlihan, Gurpreet Dhaliwal, Philipp Holliger, Alexander I. Taylor

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要旨

Functional nucleic acids can be evolved in vitro using cycles of selection and amplification, starting from diverse-sequence libraries, which are typically restricted to natural or partially-modified polymer chemistries. Here, we describe the efficient DNA-templated synthesis and reverse transcription of libraries entirely composed of serum nuclease resistant alternative nucleic acid chemistries validated in nucleic acid therapeutics; locked nucleic acid (LNA), 2′-O-methyl-RNA (2′OMe-RNA), or mixtures of the two. We evaluate yield and diversity of synthesised libraries and measure the aggregate error rate of a selection cycle. We find that in addition to pure 2′-O-methyl-RNA and LNA, several 2′OMe-RNA/LNA blends seem suitable and promising for discovery of biostable functional nucleic acids for biomedical applications.

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RSC Chemical Biology

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Efficient synthesis and replication of diverse sequence libraries composed of biostable nucleic acid analogues

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