Henriksen DB, Breddam K, Buchardt O. Peptide amidation by enzymatic transacylation and photolysis.
INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1993;
41:169-80. [PMID:
8458691 DOI:
10.1111/j.1399-3011.1993.tb00128.x]
[Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A series of model peptides with a C-terminal protected amide group were prepared by enzymatic transacylation. The protection groups were removed by photolysis to give the warranted peptide amides in high yields. Furthermore, fragments of human calcitonin were prepared. Various protective groups were employed, and the pH, solvent and concentration dependency of the enzymatic transcylation were examined. The photo-cleavage reaction was examined for wavelength, concentration and pH dependency. It was shown that the optimal yields required addition of a chemical scavenger for the photolysis byproducts.
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