Protease-catalyzed synthesis of melanocyte-stimulating hormone (MSH) fragments |
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Authors: | Willi Kullmann |
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Affiliation: | 1. Max-Planck-Institut für Biophysikalische Chemie, G?ttingen, Germany
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Abstract: | In the present study on enzymatic peptide bond formation the proteosynthetic potential of several proteases was explored. Trypsin, α-chymotrypsin, papain, carboxypeptidase Y (CPD-Y), and thermolysin served as catalysts for the protease-controlled synthesis of some fragments of melanocyte-stimulating hormones. To obviate possible proteolytic cleavage of preexisting peptide bonds—a drawback often encountered during enzymatic peptide syntheses—several expedients leading to the target peptides were developed. The enzymatic procedure enabled under mild conditions the preparation of the desired peptides whose amino acid composition may give rise to severe complications during conventional syntheses. |
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