Author(s): Tomar R; Ghodke PP; Patra A; Smyth E; Pontarelli A; Copp W; Guengerich FP; Chaput JJ; Wilds CJ; Stone MP; Egli M;

a-l-(3'-2')-Threofuranosyl nucleic acid (TNA) pairs with itself, cross-pairs with DNA and RNA, and shows promise as a tool in synthetic genetics, diagnostics, and oligonucleotide therapeutics. We studied in vitro primer insertion and extension reactions catalyzed by human trans-lesion syn ...

Article GUID: 39259676

Author(s): Pontarelli A; Wilds CJ;

The clinical success of the antisense approach for the treatment of genetic disorders is indisputably the result of chemical modifications along the oligonucleotide (ON) scaffold, which impart desirable properties including high RNA affinity, nuclease stability and improved drug delivery. While effective, many modifications are not capable of eliciting an ...

Article GUID: 37667655

Author(s): Pontarelli A; Wilds CJ;

The introduction of chemical modifications on the nucleic acid scaffold has allowed for the progress of antisense oligonucleotides (ASOs) in the clinic for the treatment of a variety of disorders. In contribution to the repertoire of gene-silencing nucleic acid modifications, herein we report the synthesis and incorporation of C5-propynyl arabinouridine ( ...

Article GUID: 36857293

Author(s): Pontarelli A; Liu JT; Oh JK; Wilds CJ;

The protocols described in this article provide details regarding the synthesis and characterization of a disulfide containing linker phosphoramidite for terminal functionalization of synthetic oligonucleotides. The linker is first synthesized from 6-mercaptohexanol in two steps and is incorporated at the 5' end of short DNA oligonucleotides using aut ...

Article GUID: 36840706

Author(s): Pontarelli A; Liu JT; Movasat H; Ménard S; Oh JK; Wilds CJ;

The synthesis and incorporation of a tosylated phosphoramidite linker containing a disulfide bond is described. Incorporation of the linker into short DNA and RNA oligomers proceeded efficiently using automated solid phase synthesis. Treatment of the support bound oligonucleotide followed by cleavage from the solid support provided a variety of common fun ...

Article GUID: 35863757

Author(s): Pontarelli A; Wilds CJ;

The promise of the antisense approach to treat a variety of diseases with oligonucleotides and solutions to challenges that have been encountered in their development is attributable to chemical modification of the nucleic acid scaffold. Herein, we describe preliminary data regarding the synthesis of a novel C5-propynyl-ß-D-arabinouridine (araUP) phosphor ...

Article GUID: 35452799

Author(s): Copp W, Pontarelli A, Wilds CJ

The chemical and self-assembly properties of nucleic acids make them ideal for the construction of discrete structures and stimuli-responsive devices for a diverse array of applications. Amongst the various three-dimensional assemblies, DNA tetrahedra are of particular interest as these structures have been shown to be readily taken up by the cell without ...

Article GUID: 33506614