Abstract
AbstractAs a unique and unappreciated protein posttranslational modification, arginine N‐glycosylation was recently discovered to play an important role in the process that bacteria counteract host defenses. To provide chemical tools for further proteomic and biochemical studies on arginine N‐glycosylation, we report the first general strategy for a rapid and cost‐effective synthesis of glycopeptides carrying single or multiple arginine N‐GlcNAcyl groups. These glycopeptides were successfully utilized to generate the first antibodies that can specifically recognize arginine N‐GlcNAcylated peptides or proteins in a sequence‐independent manner.
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