Metal-Assisted Folding of Prolinomycin Allows Facile Design of Functional Peptides.
Metal-Assisted Folding of Prolinomycin Allows Facile Design of Functional Peptides.
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DOI:
10.1002/cbic.201600667
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发表时间:
2017-03-02
期刊:
影响因子:
--
通讯作者:
Gao J
中科院分区:
文献类型:
--
作者:
Hosseini AS;Wang W;Haeffner F;Gao J
Cyclic peptides have been proposed as privileged scaffolds that may mimic the folding and function of natural proteins. However, simple cyclic peptides typically cannot fold into well-defined structures. Herein, we describe a foldable cyclic peptide scaffold, on which functional side chains can be displayed for targeted recognition of biomolecules. The foldable scaffold is based on prolinomycin, a proline-rich analogue of valinomycin. We report synthetic mutants of prolinomycin that retain the metal-assisted folding behavior under physiological conditions. The predictable structure formation of prolinomycin makes it a powerful platform to develop synthetic receptors for biomolecules of interest. We demonstrate the potential of this scaffold by creating prolinomycin mutants that selectively bind anionic vesicles and bacterial cells. Prolinomycin, a proline-rich analogue of valinomycin, was found to tolerate various mutations, which enables predictable display of side chains for target binding. Prolinomycin presents a versatile scaffold for developing functional peptides.
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