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Updated: Jul 26, 2025

Chemical Triphosphorylation of Oligonucleotides
Published on: June 2, 2022
4-Thioribose Analogues of Adenosine Diphosphate Ribose (ADPr) Peptides
Jerre M Madern1, Jim Voorneveld1, Johannes G M Rack2
1Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
Abstract:
Adenosine diphosphate (ADP) ribosylation is an important post-translational modification (PTM) that plays a role in a wide variety of cellular processes. To study the enzymes responsible for the establishment, recognition, and removal of this PTM, stable analogues are invaluable tools. We describe the design and synthesis of a 4-thioribosyl APRr peptide that has been assembled by solid phase synthesis. The key 4-thioribosyl serine building block was obtained in a stereoselective glycosylation reaction using an alkynylbenzoate 4-thioribosyl donor.
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