Chemical Synthesis of Glycopeptides containing <scp>l</scp> -Arabinosylated Hydroxyproline and Sulfated Tyrosine
Jasper W. van de Sande, Bauke Albada
Abstract
Post-translationally modified peptides are important regulating molecules for living organisms. Here, we report the stereoselective total synthesis of β-1,2-linked l-arabinosylated Fmoc-protected hydroxyproline building blocks and their incorporation, together with sulfated tyrosine and hydroxyproline, into the plant peptide hormone PSY1. Clean glycopeptides were obtained by performing acetyl removal from the l-arabinose groups prior to deprotection of the neopentyl-protected sulfated tyrosine.
Topics & Concepts
GlycopeptideChemistrySulfationTyrosineHydroxyprolinePeptideArabinoseAmino acidBiochemistryStereoselectivityStereochemistryCatalysisFermentationXyloseAntibioticsCarbohydrate Chemistry and SynthesisGlycosylation and Glycoproteins ResearchPhytochemical compounds biological activities