Chemo-Enzymatic Synthesis of Fmoc-Peptide Fragments
摘要:
Optically pure Fmoc-peptide fragments have been prepared via dicyclohexylcarbodiimide coupling of N-protected amino acids with amino acid esters, followed by enzyme-catalyzed ester hydrolysis by alcalase with a high concentration of organic solvent in a high yield.
Glutamic Acid Selective Chemical Cleavage of Peptide Bonds
作者:Joseph M. Nalbone、Neelam Lahankar、Lyssa Buissereth、Monika Raj
DOI:10.1021/acs.orglett.6b00317
日期:2016.3.4
hydrolysis of peptide bonds at glutamic acid under neutral aqueous conditions is reported. The method relies on the activation of the backbone amide chain at glutamic acid by the formation of a pyroglutamyl (pGlu) imide moiety. This activation increases the susceptibility of a peptide bond toward hydrolysis. The method is highly specific and demonstrates broad substrate scope including cleavage of various bioactive