Towards the enzymatic synthesis of phosphorothioate containing LNA oligonucleotides.
Locked nucleic acids
Modified nucleotides
Phosphorothioates
Polymerase synthesis
Terminal deoxynucleotidyl transferase (TdT)
Journal
Bioorganic & medicinal chemistry letters
ISSN: 1464-3405
Titre abrégé: Bioorg Med Chem Lett
Pays: England
ID NLM: 9107377
Informations de publication
Date de publication:
15 09 2021
15 09 2021
Historique:
received:
21
05
2021
revised:
24
06
2021
accepted:
28
06
2021
pubmed:
5
7
2021
medline:
5
1
2022
entrez:
4
7
2021
Statut:
ppublish
Résumé
Therapeutic oligonucleotides require the addition of multiple chemical modifications to the nucleosidic scaffold in order to improve their drug delivery efficiency, cell penetration capacity, biological stability, and pharmacokinetic properties. This chemical modification pattern is often accompanied by a synthetic burden and by limitations in sequence length. Here, we have synthesized a nucleoside triphosphate analog bearing two simultaneous modifications at the level of the sugar (LNA) and the backbone (thiophosphate) and have tested its compatibility with enzymatic DNA synthesis which could abrogate some of these synthetic limitations. While this novel analog is not as well tolerated by polymerases compared to the corresponding α-thio-dTTP or LNA-TTP, α -thio-LNA-TTP can readily be used for enzymatic synthesis on universal templates for the introduction of phosphorothioated LNA nucleotides.
Identifiants
pubmed: 34217829
pii: S0960-894X(21)00469-8
doi: 10.1016/j.bmcl.2021.128242
pii:
doi:
Substances chimiques
Phosphorothioate Oligonucleotides
0
DNA-Directed DNA Polymerase
EC 2.7.7.7
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
128242Informations de copyright
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