1. Academic Validation
  2. A Cell-Permeable ATP Analogue for Kinase-Catalyzed Biotinylation

A Cell-Permeable ATP Analogue for Kinase-Catalyzed Biotinylation

  • Angew Chem Int Ed Engl. 2015 Aug 10;54(33):9618-21. doi: 10.1002/anie.201503041.
Ahmed E Fouda 1 Mary Kay H Pflum 2
Affiliations

Affiliations

  • 1 Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202 (USA) http://chem.wayne.edu/pflumgroup/
  • 2 Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202 (USA) http://chem.wayne.edu/pflumgroup/. pflum@chem.wayne.edu.
Abstract

ATP analogues have been powerful compounds for the study of kinase-catalyzed phosphorylation. However, the cell impermeability of ATP analogues has largely limited their use to in vitro lysate-based experiments. Herein, we report the first cell-permeable ATP analogue, ATP-polyamine-biotin (APB). APB is shown to promote biotin labeling of kinase substrates in live cells and has future applications in phosphoprotein purification and analysis. More generally, these studies provide a foundation for the development of additional cell-permeable ATP analogues for cell-signaling research.

Keywords

ATP; biotinylation; cell permeability; enzymes; kinases.

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