Combining flavin photocatalysis with parallel synthesis: a general platform to optimize peptides with non-proteinogenic amino acids.

Combining flavin photocatalysis with parallel synthesis: a general platform to optimize peptides with non-proteinogenic amino acids.
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DOI:
10.1039/d1sc02562g
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发表时间:
2021-07-28
期刊:
影响因子:
8.4
通讯作者:
Bloom S
Bloom S
中科院分区:
化学1区
文献类型:
--
作者:
Immel JR;Chilamari M;Bloom S

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大多数肽类药物含有非蛋白氨基酸(NPAA),通过使用固相肽合成(SPPS)进行的广泛的结构-活性关系(SAR)研究而产生。合成费力且制造昂贵,NPAA还可能具有差的偶联效率,仅允许小部分被常规SPPS采样。为了获得含NPAA的肽的普遍使用权,我们开发了第一代平台,该平台将当代黄素化与平行合成相结合,通过肽中硼酸和脱氢丙氨酸残基的独特组合,同时制备,纯化,定量甚至测试多达96种单NPAA肽变体。我们展示了我们新开发的平台的力量,将不同化学型-脂肪族,芳香族,杂芳香族-的NPAA直接引入肽中,包括15个全新的残基,并通过非经典肽SAR将简单的蛋白原肽进化为非天然的凝血酶抑制剂。 我们报告了一种非经典的方法,通过黄素酶询问肽与非蛋白质氨基酸。我们建立了一个新的平台,可以批量生产,纯化,定量和生化测试多达96种肽变体。
Most peptide drugs contain non-proteinogenic amino acids (NPAAs), born out through extensive structure–activity relationship (SAR) studies using solid-phase peptide synthesis (SPPS). Synthetically laborious and expensive to manufacture, NPAAs also can have poor coupling efficiencies allowing only a small fraction to be sampled by conventional SPPS. To gain general access to NPAA-containing peptides, we developed a first-generation platform that merges contemporary flavin photocatalysis with parallel synthesis to simultaneously make, purify, quantify, and even test up to 96 single-NPAA peptide variants via the unique combination of boronic acids and a dehydroalanine residue in a peptide. We showcase the power of our newly minted platform to introduce NPAAs of diverse chemotypes-aliphatic, aromatic, heteroaromatic-directly into peptides, including 15 entirely new residues, and to evolve a simple proteinogenic peptide into an unnatural inhibitor of thrombin by non-classical peptide SAR. We report a non-classical approach to interrogate peptides with non-proteinogenic amino acids via flavin photocatalysis. We establish a new platform to make, purify, quantify, and biochemically test up to 96 peptide variants in batch.
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