Abstract
Peptide nucleic acids (PNAs) are a class of artificial DNA/RNA analogues that have unique physicochemical properties, which include a high chemical stability, resistance to nucleases and proteases, and higher mismatch sensitivity than DNA. PNAs were initially anticipated to be useful for application in antisense and antigene therapies; however, their poor cellular uptake has limited their use for such purposes in the “real world.” Recently, it has been shown that the addition of metal complexes to these oligonucleotide analogues could open up new avenues for their utilization in various research fields. Such metallo-constructs have shown great promise, for a diverse range of applications, most notably in the biosensing area. In this book chapter, we report on the recent synthetic advances towards the preparation of these “(multi-)metallic PNAs” on the solid phase.
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Abbreviations
- A:
-
Adenine
- Bhoc:
-
Benzhydryloxycarbonyl
- Boc:
-
Tert-butyloxycarbonyl
- Bpy:
-
2,2′-bipyridine
- C:
-
Cytosine
- Cpp-L-PNA-OH:
-
[2-(N-9-fluorenylmethoxycarbonyl)aminoethyl]-N-[6-(2-(pyridin-2yl)pyrimidine-4-carboxamido)hexanoyl]-glycine
- DIC:
-
N,N′-diisopropyl carbodiimide
- DhBTOH:
-
3,4-dihydro-3-hydroxy-4-oxo-1,2,3-benzotriazine
- DIPEA:
-
Diisopropylethylamine
- DMF:
-
Dimethylformamide
- Fc:
-
Ferrocene
- Fmoc:
-
Fluorenylmethoxycarbonyl
- G:
-
Guanine
- Gly:
-
Glycine
- HATU:
-
2-(1H-7-azabenzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluoro-phosphate
- HPLC:
-
High-performance liquid chromatography
- Lys:
-
Lysine
- MALDI-TOF:
-
Matrix-assisted laser/desorption ionization-time of flight
- Mtt:
-
4-methyltrityl
- PNA:
-
Peptide nucleic acid
- T:
-
Thymine
- TBTU:
-
O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate
- TFA:
-
Trifluoroacetic acid
- TIS:
-
Triisopropylsilane
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Acknowledgments
The Swiss National Science Foundation and the University of Zurich are gratefully acknowledged for their generous financial support (Professorship No. PP00P2_133568 and Research Grant No. 200021_129910). I would also like to thank my previous supervisors and advisors Prof. Leone Spiccia and Prof. Nils Metzler-Nolte, who have initiated me into the wonderful world of (metal-containing) PNAs. Anna Leonidova, Cristina Mari, Anna M. Sosniak, and Dr. Tanmaya Joshi are acknowledged for carefully proofreading this manuscript.
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Gasser, G. (2014). Preparation of Metal-Containing Peptide Nucleic Acid Bioconjugates on the Solid Phase. In: Nielsen, P., Appella, D. (eds) Peptide Nucleic Acids. Methods in Molecular Biology, vol 1050. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-553-8_5
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DOI: https://doi.org/10.1007/978-1-62703-553-8_5
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