PMID: 26152807

Authors:

Qian WJ, Park JE, Grant R, Lai CC, Kelley JA, Yaffe MB, Lee KS, Burke TR

Title:

Neighbor-directed Histidine N(tau)-Alkylation: A Route to Imidazolium-containing Phosphopeptide Macrocycles.

Journal:

Biopolymers. 2015 Jul 7. doi: 10.1002/bip.22698.

Abstract:

Our recently discovered, selective, on-resin route to N(tau)-alkylated imidazolium-containing histidine residues affords new strategies for peptide mimetic design. In our current work, we demonstrate the use of this chemistry to prepare a series of macrocyclic phosphopeptides, in which imidazolium groups serve as ring-forming junctions. Interestingly, these cationic moieties subsequently serve to charge-mask the phosphoamino acid group that directed their formation. Neighbor-directed histidine N(tau)-alkylation opens the door to new families of phosphopeptidomimetics for use in a range of chemical biology contexts. This article is protected by copyright. All rights reserved.