Abstract
This review discusses the recent developments of DNA analogues with nonphosphodiester backbones in terms of DNA structure and antisense and antigene potential. A larger number of derivatives are now available in which the phosphodiester linkage has been replaced but the deoxyribose retained. However, only a few of these (e.g. the ones having a thioformacetal or a carboxamide linkage) appear to be good structural DNA mimics. Two successful attempts to replace the entire deoxyribose phosphate backbone have been reported, the morpholino derivatives and the peptide nucleic acids (PNA), which contain an N-(2-aminoethyl)glycine-based pseudopeptide backbone. Most information is available on the PNA, which is a very promising DNA mimic. In conclusion, the deoxyribose phosphate backbone is not essential for a potent structural DNA mimic and not even required for a helical duplex structure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Annual Review of Biophysics and Biomolecular Structure
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.