A trifunctional probe for generation of fluorogenic glycan-photocrosslinker conjugates.

IF 3.1 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Brandon Vreulz, Daphnée De Crozals, Samy Cecioni
{"title":"A trifunctional probe for generation of fluorogenic glycan-photocrosslinker conjugates.","authors":"Brandon Vreulz, Daphnée De Crozals, Samy Cecioni","doi":"10.1039/d5cb00206k","DOIUrl":null,"url":null,"abstract":"<p><p>Interactions between cell surface glycans and lectins mediate vital biological processes, yet their characterization is hindered by the low affinity of these binding events. While photoaffinity labeling can capture these interactions, traditional custom probes often demand tedious synthesis, are limited to simple glycans, and lack versatility. To overcome these limitations, we report a trifunctional scaffold enabling modular assembly of glycan probes. This scaffold integrates orthogonal sites for: (i) efficient late-stage ligation of native oligosaccharides <i>via</i> an <i>N</i>-alkoxy-amine, preserving glycan structure; (ii) flexible amide coupling of various photocrosslinkers, including a recently developed fluorogenic azidocoumarin for traceable labeling; and (iii) conjugation to reporter tags (<i>e.g.</i>, biotin) or multivalent carriers through a carboxylic acid motif. We demonstrate the scaffold's utility by synthesizing probes bearing various fucosylated glycans. Probes incorporating the fluorogenic photocrosslinker achieved specific, light-induced labeling of the model lectin BambL. The platform's adaptability was further confirmed by generating monovalent biotinylated probes displaying the photoactive glycan. This modular strategy offers a practical solution to rapidly construct advanced chemical probes, facilitating the investigation of complex glycan recognition events in diverse biological systems.</p>","PeriodicalId":40691,"journal":{"name":"RSC Chemical Biology","volume":" ","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12459285/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Chemical Biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/d5cb00206k","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Interactions between cell surface glycans and lectins mediate vital biological processes, yet their characterization is hindered by the low affinity of these binding events. While photoaffinity labeling can capture these interactions, traditional custom probes often demand tedious synthesis, are limited to simple glycans, and lack versatility. To overcome these limitations, we report a trifunctional scaffold enabling modular assembly of glycan probes. This scaffold integrates orthogonal sites for: (i) efficient late-stage ligation of native oligosaccharides via an N-alkoxy-amine, preserving glycan structure; (ii) flexible amide coupling of various photocrosslinkers, including a recently developed fluorogenic azidocoumarin for traceable labeling; and (iii) conjugation to reporter tags (e.g., biotin) or multivalent carriers through a carboxylic acid motif. We demonstrate the scaffold's utility by synthesizing probes bearing various fucosylated glycans. Probes incorporating the fluorogenic photocrosslinker achieved specific, light-induced labeling of the model lectin BambL. The platform's adaptability was further confirmed by generating monovalent biotinylated probes displaying the photoactive glycan. This modular strategy offers a practical solution to rapidly construct advanced chemical probes, facilitating the investigation of complex glycan recognition events in diverse biological systems.

荧光聚糖-光交联剂共轭物的三功能探针。
细胞表面聚糖和凝集素之间的相互作用介导了重要的生物过程,但这些结合事件的低亲和力阻碍了它们的表征。虽然光亲和标记可以捕获这些相互作用,但传统的定制探针通常需要繁琐的合成,仅限于简单的聚糖,并且缺乏通用性。为了克服这些限制,我们报道了一种三功能支架,使聚糖探针的模块化组装成为可能。该支架整合了正交位点,用于:(i)通过n -烷氧基胺有效地连接天然低聚糖,保持聚糖结构;(ii)各种光交联剂的柔性酰胺偶联,包括最近开发的可追溯标签的荧光叠氮香豆素;(iii)通过羧酸基序偶联到报告标签(例如,生物素)或多价载体。我们通过合成带有各种聚焦聚糖的探针来证明支架的效用。含有荧光光交联剂的探针实现了模型凝集素BambL的特异性光诱导标记。通过生成显示光活性聚糖的单价生物素化探针,进一步证实了该平台的适应性。这种模块化策略为快速构建先进的化学探针提供了一种实用的解决方案,促进了对不同生物系统中复杂聚糖识别事件的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
6.10
自引率
0.00%
发文量
128
审稿时长
10 weeks
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信