Journal
CURRENT OPINION IN BIOTECHNOLOGY
Volume 60, Issue -, Pages 259-267Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2019.11.009
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Funding
- FWO-Flanders Research Foundation [12Q8619N]
- Research Fund KU Leuven [01714/128]
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To increase the scope of natural biosystem, nucleic acids have been intensively modified. One direction includes the development of a synthetic alternative to the native DNA and RNA, denoted Xenobiotic nucleic acids (XNAs) that are able to store and transfer genetic information either by base-modification or backbone-modification. Another line of research aims to develop alternative third base pair additional to natural A:T and G:C. These unnatural base pairs (UBPs) can store increased information content encoded in three base pairs. This review outlines the recent progress made towards XNA and UBP applications as new components of the genomic DNA as well as biostable aptamers. New achievements in the replacement of a bacterial genome by unnatural non-canonical nucleotides are also described.
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