Probing Site-Selective Conjugation Chemistries for the Construction of Homogeneous Synthetic Glycodendriproteins.

Probing Site-Selective Conjugation Chemistries for the Construction of Homogeneous Synthetic Glycodendriproteins.
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DOI:
10.1002/cbic.202200020
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发表时间:
2022-05-18
期刊:
影响因子:
3.2
通讯作者:
Boutureira, Omar
Boutureira, Omar
中科院分区:
生物学3区
文献类型:
--
作者:
Cobo, Isidro;Matheu, M. Isabel;Castillon, Sergio;Davis, Benjamin G.;Boutureira, Omar

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Methods that site‐selectively attach multivalent carbohydrate moieties to proteins can be used to generate homogeneous glycodendriproteins as synthetic functional mimics of glycoproteins. Here, we study aspects of the scope and limitations of some common bioconjugation techniques that can give access to well‐defined glycodendriproteins. A diverse reactive platform was designed via use of thiol‐Michael‐type additions, thiol‐ene reactions, and Cu(I)‐mediated azide‐alkyne cycloadditions from recombinant proteins containing the non‐canonical amino acids dehydroalanine, homoallylglycine, homopropargylglycine, and azidohomoalanine. Homogeneous glycodendriproteins: A comparative reactive platform was designed via use of C−S bond‐forming reactions (unprecedented for this family of glycoconjugates) and via triazoles (in two orientations), from recombinant proteins containing non‐canonical amino acids (dehydroalanine, homoallylglycine, homopropargylglycine, and azidohomoalanine) that can give access to well‐defined glycodendriproteins as synthetic functional mimics of N‐linked glycoproteins.
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