Processing and presentation of insulin. III. Insulin degrading enzyme : A neutral metalloendoproteinase that is non-homologous to classical endoproteinases mediates the processing of insulin epitopes for helper T cells
Presentation of a protein antigen to T cells generally requires that the antigen be enzymatically processed into an immunogenic peptide(s). The identification of a protease(s) and its mechanism of action in the proteolysis of such an antigen is therefore a primary goal in the study of antigen processing. We show here that Insulin degrading enzyme (IDE), a neutral thiol metalloendo-proteinase that
