4.5 Article

Using peptidyl aldehydes in activity-based proteomics

Journal

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 19, Issue 14, Pages 3752-3755

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2009.04.148

Keywords

Aldehydes; Peptides; Activity-based proteomics; Prolyl oligopeptidase

Funding

  1. MCYT-FEDER [Bio2008-00799]
  2. Ministerio de Educacion y Ciencia, Spain

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The broad inhibitory spectrum of aldehydes and the possibility that amino acid residues modulate their specificity point to the potential of using peptidyl aldehydes as activity-based probes. Here, we establish the potential of peptidyl aldehydes in activity-based proteomics by synthesizing different probes and using them to specifically label a well-known serine protease in an activity-dependent manner. From our results, peptidyl aldehydes emerge as promising activity-based probes that enable multiple enzymatic-class detection by substrate recognition and can be used in diverse activity-based proteomics applications like protein identification and activity profiling. (C) 2009 Elsevier Ltd. All rights reserved.

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