Synthesis and evaluation of 2-ethynyl-adenosine-5′-triphosphate as a chemical reporter for protein AMPylation

Document Type

Article

Publication Date

8-21-2015

Abstract

Protein AMPylation is a posttranslational modification (PTM) defined as the transfer of an adenosine monophosphate (AMP) from adenosine triphosphate (ATP) to a hydroxyl side-chain of a protein substrate. One recently reported AMPylator enzyme, Vibrio outer protein S (VopS), plays a role in pathogenesis by AMPylation of Rho GTPases, which disrupts crucial signaling pathways, leading to eventual cell death. Given the resurgent interest in this modification, there is a critical need for chemical tools that better facilitate the study of AMPylation and the enzymes responsible for this modification. Herein we report the synthesis of 2-ethynyl-adenosine-5′-triphosphate (2eATP) and its utilization as a non-radioactive chemical reporter for protein AMPylation.

Publication Title

Organic and Biomolecular Chemistry

Volume

13

Issue

31

First Page

8550

Last Page

8555

Digital Object Identifier (DOI)

10.1039/c5ob01081k

PubMed ID

26173047

ISSN

14770520

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