Proinsulin endoproteolysis confers enhanced targeting of processed insulin to the regulated secretory pathway

Recently, two different prohormone-processing enzymes, prohormone convertase 1 (PC1) and carboxypeptidase E, have been implicated in enhancing the storage of peptide hormones in endocrine secretory granules. It is important to know the extent to which such molecules may act as "sorting receptor...

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