title: [Improved preparation of des-alanylB30-insulin (author's transl)].
abstract: Des-AlaB30-insulin was prepared by incubation of insulin with carboxypeptidase A. The C-terminal alanineB30 of the B-chain was quantitatively liberated without liberating asparagineA21 of the A-chain in ammonium hydrogencarbonate buffer.
mesh_terms: D002268:Carboxypeptidases; D007328:Insulin / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D007328:Insulin; D002268:Carboxypeptidases
vernacular_title: Verbesserte Darstellung von Des-alanylB30-insulin.