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To View Your Biomolecule, Click inside the Cell

Abstract : The surging development of bioorthogonal chemistry has profoundly transformed chemical biology over the last two decades. Involving chemical partners that specifically react together in highly complex biological fluids, this branch of chemistry now allows researchers to probe biomolecules in their natural habitat through metabolic labelling technologies. Chemical reporter strategies include metabolic glycan labelling, site-specific incorporation of unnatural amino acids in proteins, and post-synthetic labelling of nucleic acids. While a majority of literature reports mark cell-surface exposed targets, implementing bioorthogonal ligations in the interior of cells constitutes a more challenging task. Owing to limiting factors such as membrane permeability of reagents, fluorescence background due to hydrophobic interactions and off-target covalent binding, and suboptimal balance between reactivity and stability of the designed molecular reporters and probes, these strategies need mindful planning to achieve success. In this review, we discuss the hurdles encountered when targeting biomolecules localized in cell organelles and give an easily accessible summary of the strategies at hand for imaging intracellular targets.
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Soumis le : mardi 19 octobre 2021 - 17:42:43
Dernière modification le : vendredi 1 avril 2022 - 03:52:46
Archivage à long terme le : : jeudi 20 janvier 2022 - 20:08:57


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Vincent Rigolot, Christophe Biot, Cedric Lion. To View Your Biomolecule, Click inside the Cell. Angewandte Chemie International Edition, Wiley-VCH Verlag, 2021, 60 (43), pp.23084-23105. ⟨10.1002/anie.202101502⟩. ⟨hal-03386257⟩



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