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  • Specific fluorescence labeling of target proteins by using a ligand-4-azidophthalimide conjugate.

Specific fluorescence labeling of target proteins by using a ligand-4-azidophthalimide conjugate.

Chemical communications (Cambridge, England) (2017-07-21)
Kosuke Chiba, Miwako Asanuma, Minoru Ishikawa, Yuichi Hashimoto, Kosuke Dodo, Mikiko Sodeoka, Takao Yamaguchi
ABSTRACT

We herein propose a simple affinity-labeling method using a ligand-4-azidophthalimide (AzPI) conjugate. As a proof of concept, we show that two different ligand-AzPI conjugates enabled highly specific fluorescence labeling of their individual target proteins even in crude cell lysates. This method was also applied to label endogenous target proteins inside living cells.

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1-Biotinyl-3,6-dioxa-8-octaneamine hydrochloride, ≥95%