Enabling Peptide Ligation at Aromatic Junction Mimics via Native Chemical Ligation and Palladium-Mediated S-Arylation
Xiaoxi Lin, Raj V. Nithun, Raju Samanta, Omer Harel, Muhammad Jbara
Abstract
Synthetic strategies to assemble peptide fragments are in high demand to access homogeneous proteins for various applications. Here, we combined native chemical ligation (NCL) and Pd-mediated Cys arylation to enable practical peptide ligation at aromatic junctions. The utility of one-pot NCL and S-arylation at the Phe and Tyr junctions was demonstrated and employed for the rapid chemical synthesis of the DNA-binding domains of the transcription factors Myc and Max. Organometallic palladium reagents coupled with NCL enabled a practical strategy to assemble peptides at aromatic junctions.
Topics & Concepts
Native chemical ligationChemistryLigationPeptidePalladiumHomogeneousCombinatorial chemistryProximity ligation assayChemical ligationChemical biologyReagentChemical synthesisBiochemistryCatalysisMolecular biologyOrganic chemistryIn vitroBiologyPhysicsReceptorThermodynamicsChemical Synthesis and AnalysisClick Chemistry and ApplicationsAdvanced biosensing and bioanalysis techniques