A chemical reporter for protein AMPylation.
A chemical reporter for protein AMPylation.
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DOI:
10.1021/ja205137d
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发表时间:
2011-11-02
影响因子:
15
通讯作者:
Hang, Howard C.
中科院分区:
文献类型:
--
作者:
Grammel, Markus;Phi Luong;Orth, Kim;Hang, Howard C.
Protein AMPylation is an emerging posttranslational modification, which plays key roles in bacterial pathogenesis and cell biology. Enzymes with AMPylation activity, referred to as AMPylators, have been identified in several bacterial pathogens and eukaryotes. To facilitate the study of this unique modification, we developed an alkynyl chemical reporter for detection and identification of protein AMPylation substrates. Covalent functionalization of AMPylation substrates with the alkynyl reporter in lieu of adenylyl 5′-monophosphate (AMP) allows their subsequent bioorthogonal ligation with azide-fluorescent dyes or affinity enrichment tags. We show that this chemical reporter is transferred by a range of AMPylators onto their cognate protein substrates and allows rapid detection and identification of AMPylated substrates.
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