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Traceless Staudinger Ligation to Access Stable Aminoacyl- or Peptidyl-Dinucleotide.

ABSTRACT: Aminoacyl- and peptidyl-tRNA are specific biomolecules involved in many biological processes, from ribosomal protein synthesis to the synthesis of peptidoglycan precursors. Here, we report a post-synthetic approach based on traceless Staudinger ligation for the synthesis of a stable amide bond to access aminoacyl- or peptidyl-di-nucleotide. A series of amino-acid and peptide ester phenyl phosphines were synthetized, and their reactivity was studied on a 2'-N₃ di-nucleotide. The corresponding 2'-amide di-nucleotides were obtained and characterized by LC-HRMS, and mechanistic interpretations of the influence of the amino acid phenyl ester phosphine were proposed. We also demonstrated that enzymatic 5'-OH phosphorylation is compatible with the acylated di-nucleotide, allowing the possibility to access stable aminoacylated-tRNA.

SUBMITTER: Kitoun C

PROVIDER: S-EPMC9893454 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Traceless Staudinger Ligation to Access Stable Aminoacyl- or Peptidyl-Dinucleotide.

Kitoun Camélia C Saidjalolov Saidbakhrom S Bouquet Delphine D Djago Fabiola F Remaury Quentin Blancart QB Sargueil Bruno B Poinot Pauline P Etheve-Quelquejeu Mélanie M Iannazzo Laura L

ACS omega 20230117 4

Aminoacyl- and peptidyl-tRNA are specific biomolecules involved in many biological processes, from ribosomal protein synthesis to the synthesis of peptidoglycan precursors. Here, we report a post-synthetic approach based on traceless Staudinger ligation for the synthesis of a stable amide bond to access aminoacyl- or peptidyl-di-nucleotide. A series of amino-acid and peptide ester phenyl phosphines were synthetized, and their reactivity was studied on a 2'-N<sub>3</sub> di-nucleotide. The corres ...[more]

PMID: 36743074

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