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一种能够合成基于活性的高级探针的天然化学连接手柄:以双泛素为例进行研究。

A native chemical ligation handle that enables the synthesis of advanced activity-based probes: diubiquitin as a case study.

作者信息

Mulder Monique P C, El Oualid Farid, ter Beek Jarno, Ovaa Huib

机构信息

Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066 CX Amsterdam (The Netherlands) http://research.nki.nl/Ovaalab/

出版信息

Chembiochem. 2014 May 5;15(7):946-9. doi: 10.1002/cbic.201402012. Epub 2014 Mar 12.

DOI:10.1002/cbic.201402012
PMID:24623714
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4159580/
Abstract

We present the development of a native chemical ligation handle that also functions as a masked electrophile that can be liberated during synthesis when required. This handle can thus be used for the synthesis of complex activity-based probes. We describe the use of this handle in the generation of linkage-specific activity-based deubiquitylating enzyme probes that contain substrate context and closely mimic the native ubiquitin isopeptide linkage. We have generated activity-based probes based on all seven isopeptide-linked diubiquitin topoisomers and demonstrated their structural integrity and ability to label DUBs in a linkage-specific manner.

摘要

我们展示了一种天然化学连接手柄的开发,该手柄还可作为一种掩蔽亲电试剂,在合成过程中根据需要释放。因此,该手柄可用于合成基于活性的复杂探针。我们描述了该手柄在生成基于连接特异性活性的去泛素化酶探针中的应用,这些探针包含底物背景并紧密模拟天然泛素异肽键。我们已经基于所有七种异肽键连接的双泛素拓扑异构体生成了基于活性的探针,并证明了它们的结构完整性以及以连接特异性方式标记去泛素化酶的能力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/74b5b956e88a/cbic0015-0946-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b5fd1d08db92/cbic0015-0946-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/8f447dcc879b/cbic0015-0946-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b59a80048445/cbic0015-0946-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b6ce7e65544b/cbic0015-0946-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/74b5b956e88a/cbic0015-0946-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b5fd1d08db92/cbic0015-0946-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/8f447dcc879b/cbic0015-0946-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b59a80048445/cbic0015-0946-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/b6ce7e65544b/cbic0015-0946-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00af/4159580/74b5b956e88a/cbic0015-0946-f3.jpg

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